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Overview
Comment:Update the built-in SQLite to the 3.15.0 beta.
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1:ef3b86baace88ab731eff6e94e39f188f4839332
User & Date: drh 2016-10-05 19:09:15
Context
2016-11-22
19:15
Updates to requirement marks. No code changes. check-in: 484d0e58e0 user: drh tags: trunk
2016-10-05
19:09
Update the built-in SQLite to the 3.15.0 beta. check-in: ef3b86baac user: drh tags: trunk
2016-08-01
17:55
Update the built-in SQLite to the 3.14 first beta. check-in: 4c1e2803a4 user: drh tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/sqlite3.c.

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6538
6539
6540
....
6568
6569
6570
6571
6572
6573
6574
6575
6576
6577
6578
6579
6580
6581
6582
....
6599
6600
6601
6602
6603
6604
6605
6606
6607
6608
6609
6610
6611
6612
6613
6614
6615
....
6717
6718
6719
6720
6721
6722
6723
6724
6725
6726
6727
6728
6729
6730
6731
6732
6733
6734
6735
....
6790
6791
6792
6793
6794
6795
6796
6797
6798
6799
6800
6801
6802
6803
6804
6805
6806
6807
6808
6809
6810
6811
6812
....
6831
6832
6833
6834
6835
6836
6837
6838
6839
6840
6841
6842
6843
6844
6845
6846
....
6851
6852
6853
6854
6855
6856
6857
6858
6859
6860
6861
6862
6863
6864
6865
....
6872
6873
6874
6875
6876
6877
6878
6879
6880
6881
6882
6883
6884
6885
6886
....
6907
6908
6909
6910
6911
6912
6913
6914
6915
6916
6917
6918
6919
6920
6921
....
6926
6927
6928
6929
6930
6931
6932
6933
6934
6935
6936
6937
6938
6939
6940
....
6955
6956
6957
6958
6959
6960
6961

6962
6963
6964
6965
6966
6967
6968
....
6989
6990
6991
6992
6993
6994
6995
6996
6997
6998
6999
7000
7001
7002
7003
7004
....
7115
7116
7117
7118
7119
7120
7121
7122
7123
7124
7125
7126
7127
7128
7129
....
7258
7259
7260
7261
7262
7263
7264
7265
7266
7267
7268
7269
7270
7271
7272
....
7494
7495
7496
7497
7498
7499
7500
7501
7502
7503
7504
7505
7506
7507
7508
7509
7510
7511
7512
7513
7514
7515
7516
7517
7518
7519
7520
7521
7522
7523
7524
7525
7526
7527
7528
7529
7530
7531
7532
7533
7534
7535
7536
7537
7538
7539
....
7727
7728
7729
7730
7731
7732
7733
7734
7735
7736
7737
7738
7739
7740
7741
7742
7743
7744
7745
7746
7747
7748
7749
7750
....
7853
7854
7855
7856
7857
7858
7859
7860
7861
7862
7863
7864
7865
7866
7867
7868
7869
7870
7871
7872
7873
7874
7875
7876
7877
7878
7879
7880
7881
7882
7883
....
7886
7887
7888
7889
7890
7891
7892
7893
7894
7895
7896
7897
7898
7899
7900
....
7909
7910
7911
7912
7913
7914
7915
7916
7917
7918
7919
7920
7921
7922
7923
....
7932
7933
7934
7935
7936
7937
7938
7939
7940
7941
7942
7943
7944
7945
7946
....
7968
7969
7970
7971
7972
7973
7974
7975
7976
7977
7978
7979
7980
7981
7982
7983
7984
....
8003
8004
8005
8006
8007
8008
8009
8010
8011
8012
8013
8014
8015
8016
8017
....
8025
8026
8027
8028
8029
8030
8031
8032
8033
8034
8035
8036
8037
8038
8039
....
8119
8120
8121
8122
8123
8124
8125
8126
8127
8128
8129
8130
8131
8132
8133
....
8155
8156
8157
8158
8159
8160
8161
8162
8163
8164
8165
8166
8167
8168
8169
....
8208
8209
8210
8211
8212
8213
8214
8215
8216
8217
8218
8219
8220
8221
8222
....
8313
8314
8315
8316
8317
8318
8319
8320
8321
8322
8323
8324
8325
8326
8327
....
8329
8330
8331
8332
8333
8334
8335
8336
8337
8338
8339
8340
8341
8342
8343
....
8361
8362
8363
8364
8365
8366
8367
8368
8369
8370
8371
8372
8373
8374
8375
....
8387
8388
8389
8390
8391
8392
8393
8394
8395
8396
8397
8398
8399
8400
8401
....
8441
8442
8443
8444
8445
8446
8447
8448
8449
8450
8451
8452
8453
8454
8455
8456
8457
8458
8459
8460
8461
8462
8463
8464
8465
8466
8467
8468
8469
8470
8471
8472
8473
8474
8475
8476
8477
8478
8479
8480
8481
8482
8483
....
8519
8520
8521
8522
8523
8524
8525
8526
8527
8528
8529
8530
8531
8532
8533
....
8557
8558
8559
8560
8561
8562
8563
8564
8565
8566
8567
8568
8569
8570
8571
....
8574
8575
8576
8577
8578
8579
8580
8581
8582
8583
8584
8585
8586
8587
8588
....
8598
8599
8600
8601
8602
8603
8604
8605
8606
8607
8608
8609
8610
8611
8612
....
8656
8657
8658
8659
8660
8661
8662
8663
8664
8665
8666
8667
8668
8669
8670
8671
8672
8673
8674
8675
8676
8677
8678
8679
8680
8681
8682
8683
8684
8685
8686
8687
8688
8689
8690
8691
8692
8693
8694
8695
8696
8697
8698
8699
8700
8701
....
8705
8706
8707
8708
8709
8710
8711
8712
8713
8714
8715
8716
8717
8718
8719
....
8894
8895
8896
8897
8898
8899
8900
8901
8902
8903
8904
8905
8906
8907
8908
8909
8910
8911
8912
8913
8914
8915
....
9160
9161
9162
9163
9164
9165
9166
9167
9168
9169
9170
9171
9172
9173
9174
....
9247
9248
9249
9250
9251
9252
9253
9254
9255
9256
9257
9258
9259
9260
9261
....
9464
9465
9466
9467
9468
9469
9470
9471
9472
9473
9474
9475
9476
9477
9478
9479
9480
9481
9482
9483
9484
9485
9486
9487
9488
9489
9490
....
9506
9507
9508
9509
9510
9511
9512


9513
9514
9515
9516
9517
9518
9519
....
9520
9521
9522
9523
9524
9525
9526
9527
9528
9529
9530
9531
9532
9533
9534
....
9581
9582
9583
9584
9585
9586
9587


9588
9589
9590
9591
9592
9593
9594
....
9596
9597
9598
9599
9600
9601
9602
9603
9604
9605
9606
9607
9608
9609
9610
9611
9612
9613
9614
9615
9616
9617
9618
9619
9620
9621
9622
9623
....
9753
9754
9755
9756
9757
9758
9759
9760
9761
9762
9763
9764
9765
9766
9767
9768
9769
9770
9771
....
9898
9899
9900
9901
9902
9903
9904
9905
9906
9907
9908
9909
9910
9911
9912
9913
9914
9915
9916
9917
9918
9919
9920
9921
....
9932
9933
9934
9935
9936
9937
9938
9939
9940
9941
9942
9943
9944
9945
9946
....
9952
9953
9954
9955
9956
9957
9958
9959
9960
9961
9962
9963
9964
9965
9966
9967
9968
9969
9970
9971
9972
9973
9974
9975
9976
9977
9978
9979
9980
9981
9982
9983
9984
9985
9986
9987
9988
9989
9990
9991
9992
9993
9994
9995
9996
9997
9998
9999
10000
10001
10002
10003
10004
10005
10006
10007
10008
10009
10010
10011
10012
10013
.....
10054
10055
10056
10057
10058
10059
10060
10061
10062
10063
10064
10065
10066
10067
10068
.....
10105
10106
10107
10108
10109
10110
10111
10112
10113
10114
10115
10116
10117
10118
10119
10120
10121
10122
10123
.....
10218
10219
10220
10221
10222
10223
10224
10225
10226
10227
10228
10229
10230
10231
10232
.....
10285
10286
10287
10288
10289
10290
10291
10292
10293
10294
10295
10296
10297
10298
10299
10300
10301
10302
10303
10304
10305
10306
10307
10308
10309
10310
10311
10312
10313
10314
10315
10316
10317
10318
10319
10320
10321
10322
10323
10324
10325
10326
10327
10328
10329
10330
10331
.....
10334
10335
10336
10337
10338
10339
10340
10341
10342
10343
10344
10345
10346
10347
10348
10349
10350
10351
10352
10353
10354
10355
10356
10357
10358
10359
.....
10519
10520
10521
10522
10523
10524
10525
10526
10527
10528
10529
10530
10531
10532
10533
10534
10535
10536
10537
10538
10539
.....
10558
10559
10560
10561
10562
10563
10564
10565
10566
10567
10568
10569
10570
10571
10572
10573
10574
10575
10576
10577
10578
10579
10580
10581
10582
10583
10584
10585
10586
10587
10588
10589
10590
10591
10592
10593
10594
10595
10596
10597
10598
10599
10600
10601
10602
10603
10604
10605
10606
10607
.....
11387
11388
11389
11390
11391
11392
11393
11394
11395
11396

11397
11398
11399
11400
11401
11402
11403
.....
11413
11414
11415
11416
11417
11418
11419


11420
11421
11422
11423
11424
11425
11426
11427
11428
11429
11430
.....
11898
11899
11900
11901
11902
11903
11904
11905
11906
11907
11908
11909
11910
11911
11912
11913
.....
12075
12076
12077
12078
12079
12080
12081

12082

12083
12084
12085
12086
12087
12088
12089
.....
12278
12279
12280
12281
12282
12283
12284

12285
12286

12287
12288
12289
12290
12291
12292
12293
.....
12440
12441
12442
12443
12444
12445
12446
12447
12448
12449
12450
12451
12452
12453
12454
.....
12557
12558
12559
12560
12561
12562
12563
12564
12565
12566
12567
12568
12569
12570
12571
12572
12573
12574
12575
12576
12577
12578
12579
12580
12581
12582

12583
12584
12585
12586
12587
12588
12589
12590
12591
12592
12593
12594
12595
12596
12597
12598
12599
12600
12601
12602
12603
12604
12605
12606
12607
12608
12609
12610
12611
12612
12613
12614
12615
12616
12617
12618
12619
12620
12621
12622
12623
12624
12625

12626
12627
12628
12629
12630
12631
12632
12633
12634
12635
12636
12637
12638
12639
12640
12641
12642
12643
12644
12645
12646
12647
12648
12649
12650
12651
12652
12653
12654
12655
12656
12657
12658

12659
12660
12661
12662
12663
12664
12665
12666
12667
12668
12669
12670
12671
12672
12673
12674
12675
12676
12677
12678
12679
12680
12681
12682
12683
12684
12685
12686
12687
12688
12689
12690
12691
12692
12693
12694
12695
12696
.....
12702
12703
12704
12705
12706
12707
12708
12709
12710
12711
12712
12713
12714
12715
12716
12717
12718
12719
12720
12721
12722
12723
12724
12725
12726
12727
12728
12729
12730
12731
12732
12733
12734
12735
12736
12737
.....
13081
13082
13083
13084
13085
13086
13087

13088
13089
13090
13091
13092
13093
13094
.....
13691
13692
13693
13694
13695
13696
13697
13698
13699
13700
13701
13702
13703
13704
13705
.....
14327
14328
14329
14330
14331
14332
14333

14334
14335
14336
14337
14338
14339
14340
.....
14891
14892
14893
14894
14895
14896
14897
14898

14899
14900

14901
14902
14903
14904
14905
14906
14907
.....
14929
14930
14931
14932
14933
14934
14935

14936
14937
14938
14939
14940
14941
14942
.....
15374
15375
15376
15377
15378
15379
15380
15381
15382
15383
15384
15385
15386
15387
15388
.....
15480
15481
15482
15483
15484
15485
15486
15487
15488
15489
15490
15491
15492
15493
15494
15495
15496
15497
15498
15499
15500
15501
15502
15503
15504
15505
15506
15507
15508
15509
15510
15511
15512
15513
15514
15515
15516
15517
15518
15519
15520
15521
15522
15523
15524
15525
15526
15527
15528
15529
15530
15531
15532
15533
15534
15535
15536
15537
15538
15539



















15540
15541
15542
15543
15544
15545
15546
.....
15549
15550
15551
15552
15553
15554
15555
15556
15557
15558
15559
15560
15561
15562
15563
15564
15565
15566
15567
15568
15569
15570
15571
15572
15573
15574
15575
15576
15577
15578
15579








15580
15581
15582
15583
15584
15585
15586
.....
15821
15822
15823
15824
15825
15826
15827

15828
15829
15830
15831
15832
15833
15834
.....
16106
16107
16108
16109
16110
16111
16112

16113
16114
16115
16116
16117
16118
16119
.....
16134
16135
16136
16137
16138
16139
16140
16141
16142
16143

16144
16145
16146
16147
16148
16149
16150
.....
16172
16173
16174
16175
16176
16177
16178
16179
16180
16181
16182
16183
16184
16185
16186
.....
16295
16296
16297
16298
16299
16300
16301
16302
16303
16304
16305
16306
16307
16308
16309
16310
.....
16472
16473
16474
16475
16476
16477
16478

16479
16480
16481
16482
16483
16484
16485
.....
16537
16538
16539
16540
16541
16542
16543
16544
16545
16546
16547
16548
16549
16550
16551
.....
16591
16592
16593
16594
16595
16596
16597






16598
16599
16600
16601

16602
16603
16604

16605
16606
16607
16608
16609
16610
16611
.....
16750
16751
16752
16753
16754
16755
16756
16757
16758
16759
16760
16761
16762
16763
16764
.....
16855
16856
16857
16858
16859
16860
16861





16862
16863
16864
16865
16866
16867
16868
.....
16940
16941
16942
16943
16944
16945
16946
16947
16948
16949
16950
16951
16952
16953
16954
16955
16956
16957
16958
16959
16960
16961
16962
16963
.....
17022
17023
17024
17025
17026
17027
17028
17029
17030
17031
17032
17033
17034
17035
17036
.....
17086
17087
17088
17089
17090
17091
17092
17093

17094
17095
17096
17097
17098
17099
17100
.....
17109
17110
17111
17112
17113
17114
17115
17116
17117
17118
17119
17120
17121
17122
17123
.....
17558
17559
17560
17561
17562
17563
17564
17565
17566
17567
17568
17569
17570
17571
17572
.....
17586
17587
17588
17589
17590
17591
17592
17593
17594
17595
17596
17597
17598
17599
17600
.....
17669
17670
17671
17672
17673
17674
17675
17676
17677
17678
17679
17680
17681
17682
17683
17684
17685
.....
17746
17747
17748
17749
17750
17751
17752






17753
17754
17755
17756
17757
17758
17759
.....
17774
17775
17776
17777
17778
17779
17780
17781
17782
17783
17784
17785
17786
17787
17788
17789
17790
17791
17792
17793
17794
17795
17796
17797
17798
17799
17800
17801
17802
17803
17804
17805
17806
17807
17808
17809
17810
.....
17937
17938
17939
17940
17941
17942
17943
17944
17945
17946
17947
17948
17949
17950
17951
17952
17953
17954
17955
17956
17957
17958
17959
17960
17961
17962
.....
17973
17974
17975
17976
17977
17978
17979




















17980
17981
17982
17983
17984
17985
17986
17987
17988
17989
17990
17991
17992
17993
17994
17995
17996
17997
17998
17999
18000
18001
18002
18003
18004

18005
18006
18007
18008
18009
18010
18011
18012
18013
18014
18015
18016
18017
18018
18019
18020
18021
18022
18023
18024
18025
18026
18027
18028
18029
18030
18031
18032
18033
18034
18035
18036
18037
18038
18039
18040
18041
18042
18043
18044
18045
18046
18047
18048
18049

18050
18051
18052
18053
18054
18055
18056
18057
.....
18296
18297
18298
18299
18300
18301
18302
18303
18304
18305
18306
18307
18308
18309
18310
.....
18321
18322
18323
18324
18325
18326
18327
18328
18329
18330
18331
18332
18333
18334
18335
18336
.....
18338
18339
18340
18341
18342
18343
18344
18345
18346
18347
18348
18349
18350
18351
18352
.....
19630
19631
19632
19633
19634
19635
19636
19637
19638
19639
19640
19641
19642
19643
19644
.....
20016
20017
20018
20019
20020
20021
20022
20023
20024
20025
20026
20027
20028
20029
20030
.....
20062
20063
20064
20065
20066
20067
20068
20069
20070
20071
20072
20073
20074
20075
20076
.....
20090
20091
20092
20093
20094
20095
20096
20097
20098
20099
20100
20101
20102
20103
20104
.....
22441
22442
22443
22444
22445
22446
22447
22448
22449
22450
22451
22452
22453
22454
22455
.....
22462
22463
22464
22465
22466
22467
22468
22469
22470
22471
22472
22473
22474
22475
22476
22477
22478
22479
22480
22481
22482
22483
22484
22485
22486
22487
22488
22489
22490
22491
22492
22493
22494
22495
22496
22497
22498
.....
22499
22500
22501
22502
22503
22504
22505
22506
22507
22508
22509
22510
22511
22512
22513
22514
22515
22516
22517
22518
22519
22520
22521
22522
22523
22524
22525
22526
22527
22528
22529
.....
23547
23548
23549
23550
23551
23552
23553
23554
23555
23556
23557
23558
23559
23560
23561
23562
.....
23848
23849
23850
23851
23852
23853
23854
23855
23856
23857
23858
23859
23860
23861
23862
.....
23907
23908
23909
23910
23911
23912
23913
23914
23915
23916
23917
23918
23919
23920
23921
.....
23923
23924
23925
23926
23927
23928
23929
23930
23931
23932
23933
23934
23935
23936
23937
.....
23945
23946
23947
23948
23949
23950
23951
23952
23953
23954
23955
23956
23957
23958
23959
.....
24014
24015
24016
24017
24018
24019
24020
24021
24022
24023
24024
24025
24026
24027
24028
24029
24030
24031
24032
24033
24034
24035
24036
24037
24038
24039
.....
24105
24106
24107
24108
24109
24110
24111
24112
24113
24114
24115
24116
24117
24118
24119
24120
24121
24122
24123
24124
24125
.....
24254
24255
24256
24257
24258
24259
24260
24261
24262
24263
24264
24265
24266
24267
24268
24269
24270
24271
24272
24273
24274
24275
24276
24277
.....
24372
24373
24374
24375
24376
24377
24378
24379
24380
24381
24382
24383
24384
24385
24386
24387
24388
24389
24390
24391
24392
24393
.....
25606
25607
25608
25609
25610
25611
25612
25613
25614
25615
25616
25617
25618
25619
25620
.....
25630
25631
25632
25633
25634
25635
25636
25637
25638
25639
25640
25641
25642
25643
25644
.....
25655
25656
25657
25658
25659
25660
25661
25662
25663
25664
25665
25666
25667
25668
25669
25670
25671
25672
25673
25674
25675
25676
25677
25678
25679
25680
25681
25682
25683
.....
25705
25706
25707
25708
25709
25710
25711
25712
25713
25714
25715
25716
25717
25718
25719
.....
25870
25871
25872
25873
25874
25875
25876
25877
25878
25879
25880
25881
25882
25883
25884
.....
26200
26201
26202
26203
26204
26205
26206









26207
26208
26209
26210
26211
26212
26213
.....
26216
26217
26218
26219
26220
26221
26222

26223
26224
26225
26226
26227
26228
26229
26230
26231
26232
26233
26234
26235
26236
26237
26238

26239
26240
26241
26242
26243
26244
26245
26246
26247
26248
26249









26250
26251
26252
26253
26254
26255
26256
.....
26282
26283
26284
26285
26286
26287
26288
26289
26290
26291
26292
26293
26294
26295
26296
.....
27485
27486
27487
27488
27489
27490
27491
27492
27493
27494
27495
27496
27497
27498
27499
.....
27506
27507
27508
27509
27510
27511
27512
27513
27514
27515
27516
27517
27518
27519
27520
.....
28504
28505
28506
28507
28508
28509
28510
28511
28512
28513
28514
28515
28516
28517
28518
28519
28520
28521
28522
28523
28524
28525
28526


28527
28528


28529
28530
28531


28532
28533
28534
28535
28536
28537
28538
28539

28540
28541
28542
28543
28544
28545
28546
28547
.....
28728
28729
28730
28731
28732
28733
28734



28735

28736
28737
28738
28739
28740
28741
28742
.....
28988
28989
28990
28991
28992
28993
28994
28995
28996
28997
28998
28999
29000
29001
29002
29003
29004
29005
29006
29007
29008
29009
29010
29011
29012
29013

29014
29015
29016
29017
29018
29019
29020
29021
29022
29023
29024
29025
29026
29027
29028
29029
29030
29031
29032
29033
29034
29035
29036
29037
29038
29039
29040
29041
29042
29043
29044
29045
29046
29047
29048
29049
29050
29051
29052
29053
29054
29055
29056

29057
29058
29059
29060
29061
29062
29063
29064
29065
29066
29067
29068
29069
29070
29071
29072
29073
29074
29075
29076
29077
29078
29079
29080
29081
29082
29083
29084
29085
29086
29087
29088
29089

29090
29091
29092
29093
29094
29095
29096
29097
29098
29099
29100
29101
29102
29103
29104
29105
29106
29107
29108
29109
29110
29111
29112
29113
29114
29115
29116
29117
29118
29119
29120
29121
29122
29123
29124
29125
29126
29127
.....
34849
34850
34851
34852
34853
34854
34855





















34856
34857
34858
34859
34860
34861
34862
.....
34885
34886
34887
34888
34889
34890
34891
34892
34893
34894
34895
34896
34897
34898
34899
.....
34916
34917
34918
34919
34920
34921
34922
34923
34924
34925
34926
34927
34928
34929
34930
34931









34932
34933
34934
34935
34936
34937
34938
.....
36805
36806
36807
36808
36809
36810
36811
36812
36813
36814
36815
36816
36817
36818
36819
.....
36904
36905
36906
36907
36908
36909
36910
36911
36912
36913
36914
36915
36916
36917
36918
.....
38339
38340
38341
38342
38343
38344
38345
38346
38347
38348
38349
38350
38351
38352
38353
.....
38379
38380
38381
38382
38383
38384
38385
38386
38387
38388
38389
38390
38391
38392
38393
.....
38424
38425
38426
38427
38428
38429
38430
38431
38432
38433
38434
38435
38436
38437
38438
.....
38470
38471
38472
38473
38474
38475
38476
38477
38478
38479
38480
38481
38482
38483
38484
.....
38519
38520
38521
38522
38523
38524
38525
38526
38527
38528
38529
38530
38531
38532
38533
.....
38907
38908
38909
38910
38911
38912
38913
38914
38915
38916
38917
38918
38919
38920
38921
.....
38923
38924
38925
38926
38927
38928
38929
38930
38931
38932
38933
38934
38935
38936
38937
.....
38939
38940
38941
38942
38943
38944
38945
38946
38947
38948
38949
38950
38951
38952
38953
.....
38955
38956
38957
38958
38959
38960
38961
38962
38963
38964
38965
38966
38967
38968
38969
.....
38971
38972
38973
38974
38975
38976
38977
38978
38979
38980
38981
38982
38983
38984
38985
.....
38987
38988
38989
38990
38991
38992
38993
38994
38995
38996
38997
38998
38999
39000
39001
.....
39007
39008
39009
39010
39011
39012
39013
39014
39015
39016
39017
39018
39019
39020
39021
.....
42925
42926
42927
42928
42929
42930
42931
42932
42933
42934
42935
42936
42937
42938
42939
.....
43056
43057
43058
43059
43060
43061
43062
43063
43064
43065
43066
43067
43068
43069
43070
.....
43947
43948
43949
43950
43951
43952
43953
43954
43955
43956
43957
43958
43959
43960
43961
.....
44994
44995
44996
44997
44998
44999
45000
45001
45002
45003













45004



45005
45006


45007
45008
45009
45010
45011
45012
45013
45014
45015
45016
45017


45018
45019
45020
45021
45022
45023
45024
45025
45026
.....
45489
45490
45491
45492
45493
45494
45495
45496
45497
45498
45499
45500
45501
45502
45503
.....
52909
52910
52911
52912
52913
52914
52915
52916




52917
52918
52919
52920
52921
52922
52923
.....
52950
52951
52952
52953
52954
52955
52956














52957
52958
52959
52960
52961
52962
52963
.....
53409
53410
53411
53412
53413
53414
53415











53416
53417
53418
53419
53420
53421
53422
.....
53634
53635
53636
53637
53638
53639
53640
53641
53642
53643
53644
53645
53646
53647
53648
.....
57051
57052
57053
57054
57055
57056
57057
57058
57059
57060
57061
57062
57063
57064
57065
.....
58188
58189
58190
58191
58192
58193
58194
58195
58196
58197
58198
58199
58200
58201
58202
.....
58865
58866
58867
58868
58869
58870
58871
58872
58873
58874
58875
58876
58877
58878
58879
.....
59707
59708
59709
59710
59711
59712
59713
59714


59715

59716
59717
59718
59719
59720
59721
59722
.....
64199
64200
64201
64202
64203
64204
64205
64206
64207
64208
64209
64210
64211
64212
64213
64214
.....
64487
64488
64489
64490
64491
64492
64493
64494
64495
64496
64497
64498
64499
64500
64501
.....
67900
67901
67902
67903
67904
67905
67906
67907
67908
67909
67910
67911
67912
67913
67914
67915
67916
67917
67918
67919
67920
67921
67922
67923
67924
67925
67926
67927
67928
67929
.....
67961
67962
67963
67964
67965
67966
67967
67968
67969
67970
67971
67972
67973
67974
67975
.....
68013
68014
68015
68016
68017
68018
68019
68020
68021
68022
68023
68024
68025
68026
68027
.....
68169
68170
68171
68172
68173
68174
68175
68176
68177
68178
68179
68180
68181
68182
68183
.....
68201
68202
68203
68204
68205
68206
68207
68208
68209
68210
68211
68212
68213
68214
68215
68216
68217
68218
68219
68220
68221
68222
68223


















68224
68225
68226
68227
68228
68229
68230
.....
68413
68414
68415
68416
68417
68418
68419
68420
68421
68422
68423
68424
68425
68426
68427
.....
68465
68466
68467
68468
68469
68470
68471
68472
68473
68474
68475
68476
68477
68478
68479
68480
68481
68482
68483
68484
68485
68486
68487
68488
68489
68490
68491
68492
68493
.....
68594
68595
68596
68597
68598
68599
68600
68601
68602
68603
68604

68605
68606
68607


68608
68609
68610
68611
68612
68613
68614
.....
68804
68805
68806
68807
68808
68809
68810
68811
68812
68813

68814
68815
68816
68817
68818
68819
68820
68821
68822

68823
68824
68825
68826
68827
68828
68829
.....
68831
68832
68833
68834
68835
68836
68837
68838
68839

68840
68841
68842
68843
68844
68845
68846
68847
68848
68849
68850
68851
68852
68853
68854
68855
68856
68857
68858
68859
68860
68861
68862
68863
.....
68909
68910
68911
68912
68913
68914
68915

68916
68917
68918
68919
68920
68921
68922
.....
69190
69191
69192
69193
69194
69195
69196
69197
69198
69199
69200
69201
69202
69203
69204
.....
69208
69209
69210
69211
69212
69213
69214
69215
69216
69217
69218
69219
69220
69221
69222
.....
69633
69634
69635
69636
69637
69638
69639
69640
69641
69642
69643
69644
69645
69646
69647
69648
69649
.....
69888
69889
69890
69891
69892
69893
69894
69895
69896
69897
69898
69899
69900
69901
69902
69903
69904
69905
.....
70015
70016
70017
70018
70019
70020
70021
70022
70023
70024
70025
70026
70027
70028
70029
.....
70135
70136
70137
70138
70139
70140
70141
70142
70143
70144
70145
70146
70147
70148
70149
70150
70151
70152
70153
70154
70155
70156




70157
70158
70159
70160
70161
70162
70163
.....
70165
70166
70167
70168
70169
70170
70171
70172
70173
70174
70175
70176
70177



70178
70179
70180
70181
70182





70183



70184
70185
70186
70187



70188
70189
70190
70191
70192
70193
70194
.....
70343
70344
70345
70346
70347
70348
70349
70350
70351

70352
70353
70354
70355
70356
70357
70358
.....
70506
70507
70508
70509
70510
70511
70512
70513
70514
70515
70516
70517
70518
70519
70520
70521
70522
.....
70696
70697
70698
70699
70700
70701
70702
70703
70704
70705
70706
70707
70708
70709
70710
.....
71087
71088
71089
71090
71091
71092
71093

71094
71095
71096
71097
71098
71099
71100
71101
71102
71103
71104
71105
71106
71107
71108
71109
.....
71218
71219
71220
71221
71222
71223
71224
71225
71226
71227
71228
71229
71230
71231
71232
.....
71416
71417
71418
71419
71420
71421
71422

71423
71424
71425
71426
71427
71428








71429
71430
71431
71432
71433
71434
71435
.....
71771
71772
71773
71774
71775
71776
71777















71778
71779
71780
71781
71782
71783
71784
.....
71983
71984
71985
71986
71987
71988
71989

71990
71991
71992
71993
71994
71995
71996
.....
72125
72126
72127
72128
72129
72130
72131
72132
72133
72134
72135
72136
72137
72138
72139
.....
72182
72183
72184
72185
72186
72187
72188
72189
72190
72191
72192
72193
72194
72195
72196
.....
72197
72198
72199
72200
72201
72202
72203
72204
72205
72206
72207
72208
72209
72210
72211
72212
.....
72217
72218
72219
72220
72221
72222
72223
72224
72225
72226
72227
72228
72229
72230
72231
72232
72233
72234
.....
72245
72246
72247
72248
72249
72250
72251
72252
72253
72254
72255
72256
72257
72258
72259
72260
72261
72262
72263
72264
72265
72266
72267
72268
72269
72270
72271
72272
72273
72274



72275
72276
72277
72278
72279









72280
72281
72282
72283
72284
72285
72286
72287
72288
.....
72343
72344
72345
72346
72347
72348
72349
72350
72351
72352
72353
72354
72355
72356
72357
72358
.....
72428
72429
72430
72431
72432
72433
72434
72435
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72437
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72439
72440
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72442
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72444
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72447
72448
.....
72885
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72899
.....
73197
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73199
73200
73201
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73204
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73209
73210
73211
.....
73261
73262
73263
73264
73265
73266
73267
73268
73269
73270
73271
73272
73273
73274


73275
73276


73277
73278
73279
73280
73281
73282
73283
73284
73285
73286
73287
.....
74028
74029
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74031
74032
74033
74034












74035
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74041






















74042
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74047
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74050
74051
.....
74343
74344
74345
74346
74347
74348
74349

74350
74351
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74354
74355
74356
74357
74358
74359
74360






74361
74362
74363
74364
74365
74366
74367
.....
74424
74425
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74429
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74432
74433
74434
74435
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74437
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.....
74483
74484
74485
74486
74487
74488
74489

74490
74491
74492
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74495
74496
.....
74933
74934
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74936
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74939
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74942
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74944
74945
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74947
.....
75002
75003
75004
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75012
75013
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75015
75016
.....
75029
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75031
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75039
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75042
75043
.....
75050
75051
75052
75053
75054
75055
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75057
75058
75059
75060
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75062
75063
75064
.....
75074
75075
75076
75077
75078
75079
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75086
75087
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75089
75090
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75100
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75112
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75115
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75117
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75119
75120
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75123
75124
75125
75126
75127
75128
75129
75130
75131
75132
75133
75134
75135
75136
75137
75138
.....
75164
75165
75166
75167
75168
75169
75170
75171
75172
75173
75174
75175
75176
75177
75178
.....
75187
75188
75189
75190
75191
75192
75193
75194
75195
75196
75197
75198
75199
75200
75201
.....
75230
75231
75232
75233
75234
75235
75236
75237
75238
75239
75240
75241
75242
75243
75244
75245
75246
75247
75248
75249
75250
75251
75252
75253
75254
75255
75256
75257
75258
75259
75260
75261
75262
75263
75264
75265
75266
75267
75268
75269
75270
75271
75272
75273
75274
75275
75276
75277
75278
75279
75280
75281
75282
75283
75284
75285
75286
75287
75288
75289
75290
75291
75292
75293
75294
75295
75296
75297
75298
75299
75300
75301
75302
75303
75304
75305
75306
75307
75308
75309
75310
75311
75312
75313
.....
75316
75317
75318
75319
75320
75321
75322
75323
75324
75325
75326
75327
75328
75329
75330
75331
75332
75333
75334
75335
75336
75337
75338
75339
75340
75341
75342
75343
75344
75345
75346
75347
75348
75349
75350
75351
75352
75353
75354
75355
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75358
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75360
75361
75362
75363
75364
75365
75366
75367
75368
75369
75370
75371
75372
75373
75374
75375
75376
75377
75378
75379
75380
75381
75382
75383
75384
75385
75386
75387
75388
75389
75390
75391
75392
75393
75394
75395
75396
75397
.....
75407
75408
75409
75410
75411
75412
75413
75414
75415
75416
75417
75418
75419
75420
75421
.....
75555
75556
75557
75558
75559
75560
75561
75562
75563
75564
75565
75566
75567
75568
75569
.....
75606
75607
75608
75609
75610
75611
75612
75613
75614
75615
75616
75617
75618
75619
75620
.....
75621
75622
75623
75624
75625
75626
75627
75628
75629
75630
75631
75632
75633
75634
75635
.....
75697
75698
75699
75700
75701
75702
75703
75704
75705
75706
75707
75708
75709
75710
75711
.....
75712
75713
75714
75715
75716
75717
75718
75719
75720
75721
75722
75723
75724
75725
75726
.....
75733
75734
75735
75736
75737
75738
75739
75740
75741
75742
75743
75744
75745
75746
75747
.....
75788
75789
75790
75791
75792
75793
75794
75795
75796
75797
75798
75799
75800
75801
75802
75803
75804
75805
75806
75807
75808
75809
75810
75811
75812
75813
75814
75815
75816
75817
75818
75819
75820
.....
75860
75861
75862
75863
75864
75865
75866
75867

75868

75869
75870
75871
75872
75873
75874
75875
75876
75877
75878
75879
75880
75881
.....
75900
75901
75902
75903
75904
75905
75906


75907
75908
75909
75910
75911
75912
75913
75914
75915
75916
75917
75918
75919
75920
75921
75922
75923
75924
75925
75926
75927
75928
75929
75930
75931
75932
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75934
75935
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75937
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75942
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75944
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75946
75947
75948
75949
75950
75951
75952
75953
75954
75955
75956
75957
75958
75959
75960
75961
75962
75963
75964
75965
75966
75967
75968
75969
75970
75971
75972
75973
75974
75975
75976
75977
75978
75979
.....
76029
76030
76031
76032
76033
76034
76035
76036
76037
76038
76039
76040
76041
76042
76043
76044
76045
76046
76047
76048
.....
76054
76055
76056
76057
76058
76059
76060
76061
76062
76063
76064
76065
76066
76067
76068
76069
76070
76071
76072
76073
76074
76075
76076
76077
76078
76079
76080
76081
76082
76083
76084
76085
76086
76087
76088
76089
76090
76091
76092
76093
76094
76095
76096
76097
76098
76099
76100
76101
76102
76103
76104
76105
76106
76107
76108
76109
76110
76111
76112
76113
76114
76115
76116
76117
76118
76119
76120
76121
76122
76123
.....
76210
76211
76212
76213
76214
76215
76216
76217
76218
76219
76220
76221
76222
76223
76224
76225
76226
76227
76228
76229
76230
76231
76232
76233
76234
76235
76236
76237
76238
76239
76240
76241
76242
76243
76244
76245
76246
76247
76248
76249
76250
76251
76252
76253
76254
76255
76256
76257
76258
76259
76260
76261
76262
76263
76264
76265
76266
76267
76268
76269
76270
76271
76272
76273
76274
76275
76276
76277
76278
76279
76280
76281
76282
76283
76284
76285
76286
76287
76288
76289
76290
76291
.....
76294
76295
76296
76297
76298
76299
76300
76301
76302
76303
76304
76305
76306
76307
76308
76309
76310
76311
76312
76313
76314
76315
76316
76317
76318
.....
76335
76336
76337
76338
76339
76340
76341
76342
76343
76344
76345
76346
76347
76348
76349
76350
76351
76352
76353
76354
76355
76356
76357
76358
76359
.....
76364
76365
76366
76367
76368
76369
76370
76371
76372
76373
76374
76375
76376
76377
76378
76379
76380
76381
76382
76383
76384
76385
76386
76387
76388
76389
.....
76403
76404
76405
76406
76407
76408
76409
76410
76411
76412
76413
76414
76415
76416
76417
.....
76437
76438
76439
76440
76441
76442
76443
76444
76445
76446
76447
76448
76449
76450
76451
.....
76459
76460
76461
76462
76463
76464
76465
76466
76467
76468
76469
76470
76471
76472
76473
76474
76475
76476
76477
76478
76479
76480
76481
76482
76483
76484
76485
76486
76487
76488
76489
76490
76491
76492
76493
76494
76495
76496
76497
76498
76499
.....
76506
76507
76508
76509
76510
76511
76512
76513
76514
76515
76516
76517
76518
76519
76520
.....
76523
76524
76525
76526
76527
76528
76529
76530
76531
76532
76533
76534
76535
76536
76537
76538
76539
76540
76541
76542
76543
76544
76545
76546
76547
76548
76549
76550
76551
.....
76579
76580
76581
76582
76583
76584
76585
76586
76587
76588
76589
76590
76591
76592
76593
.....
76634
76635
76636
76637
76638
76639
76640
76641
76642
76643
76644
76645
76646
76647
76648
.....
76652
76653
76654
76655
76656
76657
76658
76659
76660
76661
76662
76663
76664
76665
76666
76667
76668
76669
76670
76671
76672
76673
76674
76675
76676
76677
.....
76683
76684
76685
76686
76687
76688
76689
76690
76691
76692
76693
76694
76695
76696
76697
.....
76737
76738
76739
76740
76741
76742
76743
76744
76745
76746
76747
76748
76749
76750
76751
.....
76796
76797
76798
76799
76800
76801
76802
76803
76804
76805
76806
76807
76808
76809
76810
.....
77323
77324
77325
77326
77327
77328
77329
77330
77331
77332
77333
77334
77335
77336
77337
.....
77665
77666
77667
77668
77669
77670
77671
77672
77673
77674
77675
77676
77677
77678
77679
.....
77997
77998
77999
78000
78001
78002
78003
78004
78005
78006
78007
78008
78009
78010
78011
.....
78210
78211
78212
78213
78214
78215
78216
78217
78218
78219
78220
78221
78222
78223
78224
.....
78228
78229
78230
78231
78232
78233
78234

78235
78236
78237
78238
78239

78240
78241
78242
78243
78244
78245
78246
78247
78248
78249
78250
78251
78252
78253
.....
78292
78293
78294
78295
78296
78297
78298
78299
78300
78301
78302
78303
78304
78305
78306
.....
78402
78403
78404
78405
78406
78407
78408
78409
78410
78411
78412
78413
78414
78415
78416
.....
78535
78536
78537
78538
78539
78540
78541
78542
78543
78544
78545
78546
78547
78548
78549
78550
78551
78552
78553
78554
78555
78556
78557
78558
78559
78560
78561
78562
78563
78564
78565
78566
78567
78568
78569
78570
78571
78572
78573
78574
78575
78576
78577
78578
78579
.....
78798
78799
78800
78801
78802
78803
78804
78805
78806
78807
78808
78809
78810
78811
78812
78813
78814
78815
78816
78817
78818
78819
78820
78821
78822
78823
78824
78825
78826
78827
78828
78829
78830
78831
78832
78833
78834
.....
78880
78881
78882
78883
78884
78885
78886
78887
78888
78889
78890
78891
78892
78893
78894
.....
78972
78973
78974
78975
78976
78977
78978














































78979
78980
78981
78982
78983

78984
78985
78986
78987
78988
78989
78990
78991
78992
78993
.....
78999
79000
79001
79002
79003
79004
79005
79006
79007
79008
79009
79010
79011
79012
79013
79014
79015
79016
79017
79018
79019
79020
79021
79022
79023
79024
79025
79026
79027
79028
79029
79030
79031
79032
79033
79034
79035
79036
79037
79038
79039
79040
79041
79042
79043
79044
79045
79046
79047
79048
79049
79050
79051
79052
79053
79054
79055
79056
79057
79058
79059
79060
79061
79062
79063
79064
79065
79066
79067
79068
79069
79070
79071
79072
79073
79074
.....
79083
79084
79085
79086
79087
79088
79089
79090
79091
79092
79093
79094
79095
79096
79097
79098
79099
79100

79101
79102
79103
79104
79105
79106
79107
.....
79112
79113
79114
79115
79116
79117
79118

79119
79120
79121
79122
79123








79124
79125
79126
79127
79128
79129
79130
79131
79132
79133
79134
79135
79136
79137
79138
79139
79140
79141
79142
79143
79144
79145
79146
79147
79148
79149
79150
79151
79152

79153
79154
79155
79156
79157
79158
79159
79160
79161
79162
79163
79164
79165
79166
79167
79168
79169


















79170
79171
79172
79173
79174
79175
79176
79177
79178
79179
79180
79181


















79182
79183
79184
79185
79186
79187
79188
.....
79371
79372
79373
79374
79375
79376
79377
79378
79379
79380
79381
79382
79383
79384
79385
79386
79387
79388

79389
79390

79391
79392
79393

79394
79395
79396
79397
79398
79399
79400
.....
79425
79426
79427
79428
79429
79430
79431
79432
79433
79434
79435
79436
79437
79438
79439
.....
79453
79454
79455
79456
79457
79458
79459
79460
79461
79462
79463
79464
79465
79466
79467
.....
80219
80220
80221
80222
80223
80224
80225

80226
80227
80228
80229
80230
80231
80232
80233
80234
80235
80236
80237
80238
.....
80251
80252
80253
80254
80255
80256
80257
80258
80259
80260
80261
80262
80263
80264
80265
80266
80267
80268
.....
80915
80916
80917
80918
80919
80920
80921
80922
80923
80924
80925
80926
80927
80928
80929
.....
80963
80964
80965
80966
80967
80968
80969
80970
80971
80972
80973
80974
80975
80976
80977
.....
81057
81058
81059
81060
81061
81062
81063

81064
81065
81066
81067
81068
81069
81070

81071
81072
81073
81074
81075
81076
81077
81078
81079
81080
81081
81082
81083
81084
81085
.....
81396
81397
81398
81399
81400
81401
81402
81403
81404
81405
81406
81407
81408
81409
81410
.....
81438
81439
81440
81441
81442
81443
81444
81445
81446
81447
81448
81449
81450
81451
81452
.....
81512
81513
81514
81515
81516
81517
81518
81519
81520
81521
81522
81523
81524
81525
81526
.....
81555
81556
81557
81558
81559
81560
81561
81562
81563
81564
81565
81566
81567
81568
81569
.....
81627
81628
81629
81630
81631
81632
81633
81634
81635
81636
81637
81638
81639
81640
81641
.....
82103
82104
82105
82106
82107
82108
82109
82110
82111
82112
82113
82114
82115
82116
82117
82118
82119
.....
82154
82155
82156
82157
82158
82159
82160
82161
82162
82163
82164
82165
82166
82167
82168
.....
82525
82526
82527
82528
82529
82530
82531
82532
82533
82534
82535
82536
82537
82538
82539
.....
82661
82662
82663
82664
82665
82666
82667
82668
82669
82670
82671
82672
82673
82674
82675
.....
82681
82682
82683
82684
82685
82686
82687
82688
82689
82690
82691
82692
82693
82694
82695
.....
82830
82831
82832
82833
82834
82835
82836
82837
82838
82839
82840
82841
82842
82843
82844
82845
.....
82851
82852
82853
82854
82855
82856
82857
82858
82859
82860
82861
82862
82863
82864
82865
82866
.....
82886
82887
82888
82889
82890
82891
82892
82893
82894
82895
82896
82897
82898
82899
82900
82901
82902
82903
82904
82905
82906
.....
83354
83355
83356
83357
83358
83359
83360
83361
83362
83363
83364
83365
83366
83367
83368
83369
83370
83371
83372
83373
83374
83375
83376
.....
83860
83861
83862
83863
83864
83865
83866
83867
83868
83869
83870
83871
83872
83873
83874
83875
83876
83877



83878
83879
83880

83881
83882
83883
83884
83885
83886
83887
83888
83889
83890
83891

83892
83893
83894
83895
83896
83897
83898
.....
83906
83907
83908
83909
83910
83911
83912
83913
83914
83915
83916
83917
83918
83919
83920
83921
83922
83923
83924
83925
83926
83927








83928
83929
83930
83931
83932
83933
83934
83935
83936
.....
84175
84176
84177
84178
84179
84180
84181
84182
84183
84184
84185
84186
84187
84188
84189
.....
84245
84246
84247
84248
84249
84250
84251
84252
84253
84254
84255
84256
84257
84258
84259
.....
84416
84417
84418
84419
84420
84421
84422
84423
84424
84425
84426
84427
84428
84429
84430
.....
84509
84510
84511
84512
84513
84514
84515
84516
84517
84518
84519
84520
84521
84522
84523
84524
84525
84526
84527
84528
84529
84530
84531
84532
84533
84534
84535
84536
84537
84538
84539
84540
.....
84541
84542
84543
84544
84545
84546
84547
84548
84549
84550
84551
84552
84553
84554
84555
.....
87797
87798
87799
87800
87801
87802
87803
87804
87805


87806
87807
87808
87809
87810

87811
87812
87813
87814
87815
87816
87817
87818
87819
87820
87821
.....
88141
88142
88143
88144
88145
88146
88147
88148
88149
88150
88151
88152
88153
88154
88155
88156
.....
88543
88544
88545
88546
88547
88548
88549
88550
88551
88552
88553
88554
88555
88556
88557
.....
88566
88567
88568
88569
88570
88571
88572
88573
88574
88575
88576
88577
88578
88579
88580
88581
88582
88583
88584
88585
88586
88587
.....
88610
88611
88612
88613
88614
88615
88616

88617
88618
88619
88620
88621
88622
88623
88624
88625

88626
88627
88628
88629
88630
88631
88632
88633
88634
88635
88636
88637
88638

88639
88640
88641
88642
88643
88644
88645




88646
88647
88648
88649
88650
88651
88652
.....
88691
88692
88693
88694
88695
88696
88697



























88698
88699
88700
88701
88702
88703
88704
.....
89433
89434
89435
89436
89437
89438
89439












89440
89441
89442
89443
89444
89445
89446
.....
89459
89460
89461
89462
89463
89464
89465

89466
89467
89468
89469
89470
89471
89472
89473
89474
89475
89476
89477
89478
89479
89480
89481
89482
89483
89484
89485
89486
89487
.....
89639
89640
89641
89642
89643
89644
89645
89646
89647
89648
89649
89650
89651
89652
89653
.....
89728
89729
89730
89731
89732
89733
89734








































































































































































































































































89735
89736
89737
89738
89739
89740
89741
.....
89864
89865
89866
89867
89868
89869
89870
89871
89872
89873
89874
89875
89876
89877
89878
.....
90082
90083
90084
90085
90086
90087
90088
90089
90090
90091
90092
90093
90094
90095
90096
90097

90098
90099
90100
90101
90102
90103
90104
90105
90106
90107
90108
90109
90110
90111
90112
90113
90114
90115
90116
90117
90118
90119
90120
90121
90122
90123
90124
90125
90126
90127
90128
90129
90130
90131
90132
90133
90134
90135
90136
90137
90138
90139
90140
90141
90142
90143
90144
90145
90146
90147
90148
90149
90150
90151
90152
90153
90154
90155
90156
90157
90158
90159
90160
90161
90162
90163
90164
90165
90166

90167






90168
90169
90170

90171
90172
90173
90174
90175
90176
90177
90178

90179
90180
90181
90182
90183
90184
90185
.....
90348
90349
90350
90351
90352
90353
90354
90355
90356
90357
90358
90359
90360
90361
90362
90363
90364
90365
90366
90367
90368
90369
90370
90371
90372
90373
90374
90375
90376
90377



90378

90379
90380
90381
90382
90383
90384
90385
.....
90611
90612
90613
90614
90615
90616
90617






















































90618
90619
90620
90621
90622
90623
90624
.....
91019
91020
91021
91022
91023
91024
91025
91026
91027

91028
91029
91030
91031
91032
91033
91034
.....
91043
91044
91045
91046
91047
91048
91049
91050


91051
91052
91053

91054
91055
91056
91057
91058
91059
91060
91061
91062
91063
91064
91065
91066

91067
91068
91069
91070
91071
91072
91073
.....
91075
91076
91077
91078
91079
91080
91081

91082
91083
91084
91085
91086
91087
91088
.....
91119
91120
91121
91122
91123
91124
91125
91126
91127
91128
91129
91130
91131
91132
91133
.....
91135
91136
91137
91138
91139
91140
91141
91142
91143
91144
91145
91146
91147
91148
91149
91150
91151
91152
91153
91154
91155
91156
.....
91163
91164
91165
91166
91167
91168
91169











91170
91171
91172






91173
91174
91175
91176
91177
91178
91179
91180
















91181
91182
91183
91184
91185
91186
91187
91188
91189
91190
91191


91192
91193
91194
91195
91196
91197
91198
91199
91200
91201
91202
91203
91204
91205
91206
91207
91208
91209
91210
91211
91212
91213
91214
91215
91216
91217
91218
91219


91220
91221
91222
91223
91224
91225
91226
91227
91228
91229



















91230
91231




91232
91233
91234
91235











91236
91237




































91238
91239
91240
91241
91242
91243
91244
91245
91246

91247
91248
91249
91250

91251
91252

91253
91254
91255
91256
91257




91258
91259
91260
91261
91262
91263
91264
.....
91266
91267
91268
91269
91270
91271
91272
91273
91274
91275
91276
91277
91278
91279
91280
.....
91288
91289
91290
91291
91292
91293
91294






91295
91296
91297















































91298
91299
91300
91301
91302
91303
91304
.....
91317
91318
91319
91320
91321
91322
91323


91324
91325
91326
91327
91328
91329
91330
91331
.....
91332
91333
91334
91335
91336
91337
91338
91339
91340
91341
91342
91343
91344
91345
91346
91347
91348
91349
91350
91351
91352
91353
91354
91355
91356
91357
.....
91359
91360
91361
91362
91363
91364
91365
91366
91367
91368
91369

91370
91371

91372
91373
91374
91375
91376
91377
91378
91379
91380
91381
91382
91383
91384
91385
91386
91387

91388
91389
91390
91391
91392
91393
91394
91395
91396
91397
91398
91399
91400





91401
91402

91403
91404
91405
91406
91407

91408
91409
91410
91411

91412
91413
91414
91415


91416
91417



91418
91419
91420
91421
91422
91423
91424
91425

91426
91427
91428
91429
91430

91431
91432
91433
91434
91435
91436
91437
.....
91479
91480
91481
91482
91483
91484
91485
91486
91487
91488




91489
91490




91491
91492
91493

91494
91495
91496
91497
91498
91499

91500

91501

91502
91503
91504

91505
91506
91507
91508
91509
91510
91511
91512
91513
91514
91515
91516
91517
91518
91519
91520
91521
.....
91531
91532
91533
91534
91535
91536
91537


























91538
91539
91540
91541
91542
91543
91544
91545
91546
91547
91548
91549
91550





91551
91552
91553
91554
91555



91556
91557
91558
91559
91560
91561
91562
91563
91564
91565

91566
91567











91568
91569











91570
91571

91572
91573
91574
91575
91576
91577
91578
91579
91580
91581
91582


91583





91584


91585







91586
91587







91588
91589




91590
91591
91592
91593


91594
91595
91596
91597
91598
91599
91600
91601
91602
91603
91604
91605
91606
91607
91608
91609
91610
91611
91612
91613
91614
91615
91616
91617
91618
91619
91620
91621
91622
91623
91624
91625
91626
91627
91628
91629
91630
91631
91632
91633
91634

91635


91636
91637
91638
91639
91640
91641
91642
91643





91644
91645
91646
91647
91648
91649
91650




91651
91652
91653


91654
91655

91656
91657
91658
91659





91660
91661
91662
91663
91664
91665







91666
91667
91668
91669
91670
91671












91672
91673
91674


91675

91676
91677


91678
91679
91680
91681
91682
91683



91684
91685
91686
91687
91688
91689
91690
91691









91692


91693



91694
91695
91696
91697



91698
91699




91700
91701
91702



91703
91704
91705
91706
91707
91708
91709
.....
91759
91760
91761
91762
91763
91764
91765
91766
91767
91768

91769
91770
91771
91772
91773
91774
91775
91776
91777
91778
91779
91780
91781
91782
91783
91784
91785
91786
91787
91788
91789
91790
91791



91792
91793
91794
91795
91796
91797
91798
.....
91814
91815
91816
91817
91818
91819
91820
91821
91822
91823
91824
91825
91826
91827
91828
91829
91830
91831
91832
91833
91834
91835
91836
91837
91838
91839
91840
91841
91842
91843
91844
91845
91846
91847
91848
91849
91850
91851





91852
91853
91854
91855
91856
91857
91858
91859
91860
91861
91862
91863
91864
91865
91866
91867
91868
91869
91870
91871
91872

91873
91874


91875
91876
91877
91878
91879
91880
91881
.....
91891
91892
91893
91894
91895
91896
91897
91898
91899
91900
91901
91902
91903
91904
91905
91906
91907
91908
91909


91910
91911
91912
91913
91914
91915
91916
91917
91918
91919
91920
91921
91922
91923
91924
91925
91926
91927
91928
91929
91930
.....
91994
91995
91996
91997
91998
91999
92000
92001
92002
92003
92004
92005
92006
92007
92008
92009
.....
92027
92028
92029
92030
92031
92032
92033
92034
92035
92036
92037
92038
92039
92040
92041
92042
92043


92044
92045

92046
92047
92048
92049
92050
92051
92052
.....
92070
92071
92072
92073
92074
92075
92076
92077
92078
92079
92080
92081
92082
92083
92084
92085
92086
92087


92088
92089
92090
92091
92092
92093
92094
































92095
92096
92097
92098
92099
92100
92101
.....
92106
92107
92108
92109
92110
92111
92112
92113
92114
92115
92116
92117
92118
92119
92120
92121
92122
.....
92127
92128
92129
92130
92131
92132
92133
92134
92135
92136
92137
92138
92139
92140
92141
92142
92143
92144
92145
92146
92147
92148
92149
92150
92151
92152
92153
92154
92155
92156
92157
92158
92159
92160
92161
92162
92163
92164
92165
92166
92167
92168
92169
92170
92171
92172
92173
92174
92175
92176
92177
92178
92179
92180
92181
92182
92183
92184
92185
92186
.....
92187
92188
92189
92190
92191
92192
92193
92194
92195
92196
92197
92198
92199
92200
92201
92202
92203
92204
92205
92206
92207
92208
92209
92210
92211
92212
92213
92214
92215
92216
92217
92218
92219
92220
92221
92222
92223
92224
92225
92226
92227





92228
92229
92230
92231
92232
92233




92234
92235
92236
92237
92238
92239
92240
92241
92242
92243
92244
92245
92246
92247
92248
92249
92250
92251
92252
92253
92254
92255
92256
92257
92258
92259
92260
92261
92262
92263
92264
92265
92266
92267
.....
92291
92292
92293
92294
92295
92296
92297

92298
92299
92300
92301

92302
92303
92304
92305
92306
92307
92308
92309
92310
92311
92312
92313
92314
92315
92316
92317
92318
92319
92320
92321
92322
92323
92324
92325
92326
92327
92328
.....
92339
92340
92341
92342
92343
92344
92345
92346
92347
92348
92349
92350
92351
92352
92353
92354
92355
92356

92357
92358
92359
92360
92361
92362
92363
92364
92365
92366
92367
92368
92369





92370
92371
92372
92373
92374
92375
92376
.....
92393
92394
92395
92396
92397
92398
92399
92400
92401
92402
92403
92404
92405
92406
92407
92408
.....
92469
92470
92471
92472
92473
92474
92475
92476
92477
92478
92479
92480

92481
92482



92483

92484
92485






92486
92487
92488
92489
92490
92491
92492
92493
92494
92495
92496
92497
92498
92499
92500
92501
92502
.....
92505
92506
92507
92508
92509
92510
92511
92512
92513
92514
92515
92516
92517
92518
92519
92520
92521
92522
92523
92524
92525
92526
92527
92528
92529
92530
92531
92532
92533
92534
92535
92536
92537
92538
92539
92540
92541
92542
92543
92544
92545
92546
92547
.....
92592
92593
92594
92595
92596
92597
92598




92599
92600
92601
92602
92603
92604
92605
.....
92635
92636
92637
92638
92639
92640
92641
92642
92643

92644
92645
92646
92647
92648
92649
92650
.....
92670
92671
92672
92673
92674
92675
92676
92677
92678
92679
92680
92681
92682
92683
92684
.....
92915
92916
92917
92918
92919
92920
92921








92922
92923
92924
92925
92926
92927
92928
92929
92930
92931
92932
92933
92934
92935





92936
92937
92938
92939
92940
92941
92942
92943
92944
92945
92946
92947
92948
92949
92950

92951
92952
92953
92954
92955
92956
92957
92958
92959
92960
92961
92962
92963

92964
92965
92966
92967
92968
92969
92970
.....
93021
93022
93023
93024
93025
93026
93027

93028
93029
93030
93031
93032
93033
93034
.....
93053
93054
93055
93056
93057
93058
93059
93060
93061
93062
93063
93064
93065
93066
93067
93068
93069
93070
93071
93072
93073

93074
93075
93076
93077
93078
93079
93080
.....
93173
93174
93175
93176
93177
93178
93179

93180
93181
93182
93183
93184
93185
93186
.....
93203
93204
93205
93206
93207
93208
93209
93210
93211
93212
93213
93214
93215
93216
93217
.....
93219
93220
93221
93222
93223
93224
93225

93226
93227
93228
93229
93230
93231
93232
.....
93723
93724
93725
93726
93727
93728
93729
93730
93731
93732
93733
93734
93735
93736
93737
93738
93739
93740
93741
93742
93743
93744

93745
93746
93747
93748
93749
93750
93751
93752
93753
93754
93755
93756
93757




93758
93759
93760
93761
93762
93763
93764
.....
94206
94207
94208
94209
94210
94211
94212
94213
94214
94215
94216
94217
94218
94219
94220
.....
94404
94405
94406
94407
94408
94409
94410
94411
94412
94413
94414
94415
94416
94417
94418
.....
94814
94815
94816
94817
94818
94819
94820
94821
94822
94823
94824
94825
94826
94827
94828
94829
94830
94831
94832
94833
94834
94835
.....
94836
94837
94838
94839
94840
94841
94842
94843
94844
94845
94846
94847
94848
94849
94850
.....
95598
95599
95600
95601
95602
95603
95604
95605
95606
95607
95608
95609
95610
95611
95612
.....
95988
95989
95990
95991
95992
95993
95994
95995
95996
95997
95998
95999
96000
96001
96002
.....
96448
96449
96450
96451
96452
96453
96454
96455
96456
96457
96458
96459
96460
96461
96462
.....
96591
96592
96593
96594
96595
96596
96597
96598
96599
96600
96601
96602
96603
96604
96605
.....
96656
96657
96658
96659
96660
96661
96662
96663
96664
96665
96666
96667
96668
96669
96670
96671
.....
96686
96687
96688
96689
96690
96691
96692
96693
96694
96695
96696
96697
96698
96699
96700
.....
96769
96770
96771
96772
96773
96774
96775
96776
96777
96778
96779
96780
96781
96782
96783
.....
96927
96928
96929
96930
96931
96932
96933
96934
96935
96936
96937
96938
96939
96940
96941
.....
97024
97025
97026
97027
97028
97029
97030
97031
97032
97033
97034
97035
97036
97037
97038
.....
97145
97146
97147
97148
97149
97150
97151
97152
97153
97154
97155
97156
97157
97158
97159
.....
97185
97186
97187
97188
97189
97190
97191
97192
97193
97194
97195
97196
97197
97198
97199
97200
97201
.....
97488
97489
97490
97491
97492
97493
97494
97495
97496
97497
97498
97499
97500
97501
97502
97503

97504
97505
97506
97507
97508
97509
97510
.....
97515
97516
97517
97518
97519
97520
97521

97522
97523

97524
97525
97526
97527
97528
97529
97530
97531
97532
97533
97534
97535
97536
.....
97573
97574
97575
97576
97577
97578
97579
97580
97581
97582
97583
97584
97585
97586
97587
97588
97589
97590
97591
97592
97593
97594
97595
97596
.....
97602
97603
97604
97605
97606
97607
97608
97609
97610
97611
97612
97613
97614
97615
97616
97617
97618
97619
97620
97621
97622
97623
97624
97625
97626
97627
97628
97629
97630
97631
97632
97633
.....
97660
97661
97662
97663
97664
97665
97666
97667
97668
97669
97670

97671
97672
97673
97674
97675
97676
97677
.....
97737
97738
97739
97740
97741
97742
97743
97744
97745
97746
97747
97748
97749
97750
97751
.....
97765
97766
97767
97768
97769
97770
97771
97772
97773
97774
97775
97776
97777
97778
97779
.....
97834
97835
97836
97837
97838
97839
97840
97841
97842
97843
97844
97845
97846
97847
97848
97849
.....
98055
98056
98057
98058
98059
98060
98061
98062
98063
98064
98065
98066
98067
98068
98069
.....
98114
98115
98116
98117
98118
98119
98120
98121
98122
98123
98124
98125
98126
98127
98128
.....
98225
98226
98227
98228
98229
98230
98231
98232
98233
98234
98235
98236
98237
98238
98239
.....
98244
98245
98246
98247
98248
98249
98250
98251
98252
98253
98254
98255
98256
98257
98258
.....
98799
98800
98801
98802
98803
98804
98805



98806
98807
98808
98809
98810
98811
98812
.....
99337
99338
99339
99340
99341
99342
99343
99344
99345
99346
99347
99348
99349
99350
99351
.....
99352
99353
99354
99355
99356
99357
99358
99359
99360
99361
99362
99363
99364
99365
99366
99367
99368
99369
99370
99371
99372
.....
99482
99483
99484
99485
99486
99487
99488

99489

99490
99491
99492
99493
99494
99495
99496
.....
99672
99673
99674
99675
99676
99677
99678
99679
99680
99681
99682
99683
99684
99685
99686
.....
99748
99749
99750
99751
99752
99753
99754
99755
99756
99757
99758
99759
99760
99761
99762
.....
99801
99802
99803
99804
99805
99806
99807
99808
99809
99810
99811
99812
99813
99814
99815
99816
99817
99818
99819
99820
99821
99822
99823
99824
99825
99826
99827
99828
99829
.....
99869
99870
99871
99872
99873
99874
99875
99876
99877
99878
99879
99880
99881
99882
99883
......
100110
100111
100112
100113
100114
100115
100116
100117
100118
100119
100120
100121
100122
100123
100124
......
100362
100363
100364
100365
100366
100367
100368
100369
100370
100371
100372
100373
100374
100375
100376
......
100379
100380
100381
100382
100383
100384
100385







100386
100387
100388
100389
100390
100391
100392
100393
100394
100395
100396
100397
100398
100399
......
100700
100701
100702
100703
100704
100705
100706
100707
100708
100709
100710
100711
100712
100713
100714
......
100834
100835
100836
100837
100838
100839
100840
100841
100842
100843
100844
100845
100846
100847
100848
......
100852
100853
100854
100855
100856
100857
100858
100859
100860
100861
100862
100863
100864
100865
100866
......
101373
101374
101375
101376
101377
101378
101379
101380
101381
101382
101383
101384
101385
101386
101387
101388
101389
101390
101391
101392
101393
101394
101395
......
101397
101398
101399
101400
101401
101402
101403
101404
101405
101406
101407
101408
101409
101410
101411
......
101644
101645
101646
101647
101648
101649
101650
101651
101652
101653
101654
101655
101656
101657
101658
......
102358
102359
102360
102361
102362
102363
102364
102365
102366
102367
102368
102369
102370
102371
102372
......
102468
102469
102470
102471
102472
102473
102474
102475
102476
102477
102478
102479
102480
102481
102482
......
102545
102546
102547
102548
102549
102550
102551
102552
102553

102554
102555
102556
102557
102558
102559
102560
......
102730
102731
102732
102733
102734
102735
102736
102737
102738
102739
102740
102741
102742
102743
102744
......
103908
103909
103910
103911
103912
103913
103914
103915
103916
103917
103918
103919
103920
103921
103922
103923
103924
103925
103926
103927
103928
103929
......
104471
104472
104473
104474
104475
104476
104477




















104478
104479
104480
104481
104482
104483
104484
......
104942
104943
104944
104945
104946
104947
104948
104949
104950
104951
104952
104953
104954
104955



104956
104957
104958
104959
104960
104961
104962
......
105854
105855
105856
105857
105858
105859
105860
105861
105862
105863
105864
105865
105866
105867
105868
......
106225
106226
106227
106228
106229
106230
106231
106232
106233
106234
106235
106236
106237
106238
106239
106240
106241
106242
......
106594
106595
106596
106597
106598
106599
106600
106601


106602
106603
106604
106605
106606
106607
106608
......
106617
106618
106619
106620
106621
106622
106623
106624


106625
106626
106627
106628
106629
106630
106631
......
106875
106876
106877
106878
106879
106880
106881
106882
106883
106884
106885
106886
106887
106888
106889
......
106890
106891
106892
106893
106894
106895
106896
106897
106898
106899
106900
106901
106902
106903
106904
......
106940
106941
106942
106943
106944
106945
106946
106947
106948
106949

106950
106951
106952
106953
106954
106955
106956
......
108171
108172
108173
108174
108175
108176
108177




108178
108179
108180
108181
108182
108183
108184
108185
108186

108187
108188
108189
108190
108191
108192
108193
......
108570
108571
108572
108573
108574
108575
108576

108577
108578
108579
108580
108581
108582
108583
......
108611
108612
108613
108614
108615
108616
108617
108618
108619
108620
108621
108622
108623
108624
108625
......
109873
109874
109875
109876
109877
109878
109879
109880
109881
109882
109883
109884
109885
109886
109887
......
109904
109905
109906
109907
109908
109909
109910
109911
109912
109913
109914
109915
109916
109917
109918
109919
109920
109921
109922
109923
109924
109925
109926
109927
109928
109929
109930
109931
109932
109933
109934
109935
109936
109937
109938
109939
109940
......
109961
109962
109963
109964
109965
109966
109967
109968
109969
109970
109971
109972
109973
109974
109975
......
110008
110009
110010
110011
110012
110013
110014
110015
110016
110017
110018
110019
110020
110021
110022
......
110033
110034
110035
110036
110037
110038
110039
110040
110041
110042
110043
110044
110045
110046
110047
......
110071
110072
110073
110074
110075
110076
110077





110078
110079
110080
110081
110082
110083
110084
110085
110086
110087
110088
110089
110090
110091
110092
110093
110094
......
110899
110900
110901
110902
110903
110904
110905
110906
110907
110908
110909
110910
110911
110912
110913
......
111752
111753
111754
111755
111756
111757
111758
111759
111760
111761
111762
111763
111764
111765
111766
111767
111768
111769
......
112044
112045
112046
112047
112048
112049
112050
112051
112052
112053
112054
112055
112056
112057
112058
......
112483
112484
112485
112486
112487
112488
112489
112490
112491
112492
112493
112494
112495
112496
112497
112498
112499
112500
112501
112502
112503
112504
112505
......
112627
112628
112629
112630
112631
112632
112633

112634
112635
112636
112637
112638
112639
112640
112641
112642
112643
112644

112645
112646
112647
112648
112649
112650
112651
......
112661
112662
112663
112664
112665
112666
112667
112668
112669
112670
112671
112672
112673
112674
112675
......
112840
112841
112842
112843
112844
112845
112846
112847
112848
112849
112850
112851
112852
112853
112854
......
113070
113071
113072
113073
113074
113075
113076
113077
113078
113079
113080
113081
113082
113083
113084
113085
113086
113087


113088
113089
113090
113091
113092
113093
113094
113095
......
113115
113116
113117
113118
113119
113120
113121
113122
113123
113124
113125
113126
113127
113128
113129
113130
113131
113132
113133
113134
113135
113136
113137
113138
113139
113140
113141
113142
113143
113144
113145
113146
113147
113148
113149
113150
113151
113152
113153
113154
113155
113156
113157
113158
113159
113160
113161
113162
113163
113164
113165
113166
113167
113168
113169
113170
113171
113172
113173
113174
113175
113176
113177
113178
113179
113180
113181
113182
113183
113184
113185
113186
113187
113188
113189
113190
113191
113192
113193
113194
113195
113196
113197
113198
113199
113200
113201
113202
113203
113204
113205
113206
113207
113208
113209
113210
113211
113212
113213
113214
113215
113216
113217
113218
113219
113220
113221
113222
113223
113224
113225
113226
113227
......
113294
113295
113296
113297
113298
113299
113300
113301
113302
113303
113304
113305
113306
113307
113308
113309
113310
113311
113312
113313
113314
113315
113316
113317
113318
113319
113320
......
113382
113383
113384
113385
113386
113387
113388
113389
113390
113391
113392
113393
113394
113395
113396
113397
113398
113399
113400
113401
113402
113403
113404
113405
113406
113407
113408
......
113501
113502
113503
113504
113505
113506
113507
113508
113509
113510
113511
113512
113513
113514
113515
......
114072
114073
114074
114075
114076
114077
114078
114079
114080
114081
114082
114083
114084
114085
114086
114087
114088
114089
114090
114091
114092
114093
114094
114095
114096
114097
114098
114099
114100
114101
114102
114103
114104
114105
114106
114107
114108
114109
......
114305
114306
114307
114308
114309
114310
114311
114312
114313
114314
114315
114316
114317
114318
114319

114320
114321
114322

114323

114324
114325
114326
114327
114328
114329
114330
114331
......
114333
114334
114335
114336
114337
114338
114339
114340
114341
114342
114343
114344
114345

114346
114347
114348
114349
114350
114351
114352
114353
......
114441
114442
114443
114444
114445
114446
114447
114448
114449
114450
114451
114452
114453
114454
114455
......
114654
114655
114656
114657
114658
114659
114660
114661
114662
114663
114664
114665
114666
114667
114668
114669
114670
114671
114672
114673
114674
114675
114676
114677
114678
114679
114680
114681
114682
......
114696
114697
114698
114699
114700
114701
114702
114703
114704
114705
114706
114707
114708
114709
114710
114711
114712
114713
114714
114715
114716
114717
114718
114719
......
114724
114725
114726
114727
114728
114729
114730



114731

114732
114733
114734
114735
114736
114737
114738
......
114871
114872
114873
114874
114875
114876
114877
114878
114879
114880
114881
114882
114883
114884
114885
......
115226
115227
115228
115229
115230
115231
115232
115233
115234
115235
115236
115237
115238
115239
115240
......
116065
116066
116067
116068
116069
116070
116071
116072
116073
116074
116075
116076
116077
116078
116079
116080
116081
116082

116083
116084
116085
116086
116087
116088
116089
116090
......
117132
117133
117134
117135
117136
117137
117138
117139
117140

117141
117142
117143
117144
117145
117146
117147
117148
117149
117150
117151
......
117827
117828
117829
117830
117831
117832
117833
117834
117835
117836
117837
117838
117839
117840
117841
......
118310
118311
118312
118313
118314
118315
118316
118317
118318
118319
118320
118321
118322
118323
118324
118325
118326
118327
118328
118329
118330
118331
118332
118333
......
118474
118475
118476
118477
118478
118479
118480
118481
118482
118483
118484
118485
118486
118487
118488
......
119237
119238
119239
119240
119241
119242
119243
119244
119245
119246
119247
119248
119249
119250
119251
......
119306
119307
119308
119309
119310
119311
119312
119313
119314
119315
119316
119317
119318
119319
119320
......
119421
119422
119423
119424
119425
119426
119427
119428
119429
119430
119431
119432
119433
119434
119435
......
119534
119535
119536
119537
119538
119539
119540
119541
119542
119543
119544

119545
119546
119547
119548
119549
119550
119551
119552
119553
119554
......
119634
119635
119636
119637
119638
119639
119640
119641
119642
119643
119644
119645
119646
119647
119648
......
119823
119824
119825
119826
119827
119828
119829
119830
119831
119832
119833
119834
119835
119836
119837
......
119869
119870
119871
119872
119873
119874
119875
119876
119877
119878
119879
119880
119881
119882
119883
......
119885
119886
119887
119888
119889
119890
119891
119892
119893
119894
119895
119896
119897
119898
119899
......
119988
119989
119990
119991
119992
119993
119994

119995

119996
119997
119998
119999
120000
120001
120002
120003
......
120203
120204
120205
120206
120207
120208
120209
120210
120211
120212
120213
120214
120215
120216
120217
......
120676
120677
120678
120679
120680
120681
120682
120683
120684
120685
120686
120687
120688
120689
120690
......
121278
121279
121280
121281
121282
121283
121284
121285
121286
121287
121288
121289
121290
121291
121292
121293
121294
121295
121296
121297
121298
121299
121300
121301
121302
121303
121304
121305
121306
121307
121308
121309
121310
121311
121312
121313
121314
121315
121316
121317
121318
121319
121320
121321
121322
121323
121324
121325
121326
121327
121328
121329
121330
121331
121332
121333
121334
121335
121336
121337
121338
121339
121340
121341
121342
......
121361
121362
121363
121364
121365
121366
121367
121368
121369
121370

121371
121372
121373
121374
121375
121376
121377
121378
121379
121380
121381
121382
121383
121384
121385
121386
121387
121388
121389
121390
121391
121392

121393
121394
121395
121396
121397
121398
121399
......
121403
121404
121405
121406
121407
121408
121409
121410

121411
121412
121413

121414
121415
121416
121417
121418
121419
121420
121421
......
121425
121426
121427
121428
121429
121430
121431
121432
121433
121434
121435
121436
121437
121438


121439
121440
121441
121442
121443

121444
121445
121446
121447
121448
121449
121450
......
121457
121458
121459
121460
121461
121462
121463
121464
121465
121466
121467
121468
121469
121470
121471
121472
121473
121474
121475
121476
121477
121478
121479
121480
......
121493
121494
121495
121496
121497
121498
121499

121500
121501
121502

121503

121504
121505
121506
121507
121508
121509
121510
121511
121512
121513

121514
121515
121516
121517
121518
121519
121520
121521
121522
121523

121524
121525
121526

121527
121528
121529
121530
121531
121532
121533
121534
121535
121536
121537
121538
121539
121540
121541
121542
121543
121544
121545
121546
121547
121548
121549
121550
121551
121552
121553
121554
121555
121556
121557
121558
121559
121560
121561
121562
121563
121564
......
121604
121605
121606
121607
121608
121609
121610

121611
121612
121613
121614
121615
121616
121617
......
121716
121717
121718
121719
121720
121721
121722
121723
121724
121725
121726
121727
121728
121729
121730
......
121731
121732
121733
121734
121735
121736
121737
121738
121739
121740
121741
121742
121743
121744
121745
......
121982
121983
121984
121985
121986
121987
121988
121989
121990
121991
121992
121993
121994
121995
121996
......
122046
122047
122048
122049
122050
122051
122052
122053
122054
122055
122056
122057
122058
122059
122060
......
122156
122157
122158
122159
122160
122161
122162
122163
122164
122165
122166
122167
122168
122169
122170
......
122310
122311
122312
122313
122314
122315
122316
122317
122318
122319
122320
122321
122322
122323
122324
122325
122326
122327
122328
122329
122330
122331
122332
122333
122334
......
122355
122356
122357
122358
122359
122360
122361
122362
122363
122364
122365
122366
122367
122368
122369
......
122444
122445
122446
122447
122448
122449
122450
122451
122452
122453
122454
122455
122456
122457
122458
122459
......
122585
122586
122587
122588
122589
122590
122591
122592



122593
122594
122595
122596
122597
122598
122599
......
122809
122810
122811
122812
122813
122814
122815
122816
122817
122818
122819
122820
122821
122822
122823
......
122827
122828
122829
122830
122831
122832
122833
122834
122835
122836
122837
122838
122839
122840
122841
......
123008
123009
123010
123011
123012
123013
123014


123015
123016
123017
123018
123019
123020
123021
......
123130
123131
123132
123133
123134
123135
123136






123137
123138

123139
123140
123141
123142
123143
123144
123145
123146
123147
123148
123149
123150
123151
123152
123153
123154
123155
123156
......
123295
123296
123297
123298
123299
123300
123301
123302
123303
123304
123305




123306

123307
123308
123309
123310
123311
123312
123313
123314

123315
123316
123317
123318
123319
123320
123321
123322
123323
123324
123325
123326
123327
......
123437
123438
123439
123440
123441
123442
123443











123444
123445
123446
123447
123448
123449
123450
123451
123452
123453
123454
123455
123456
123457
123458
123459
123460
123461
123462
123463
123464
123465
123466
123467
123468
123469
123470
123471








123472
123473
123474
123475
123476
123477
123478
......
123497
123498
123499
123500
123501
123502
123503
123504
123505

123506
123507
123508
123509
123510
123511
123512
123513
123514
123515
123516
......
123692
123693
123694
123695
123696
123697
123698
123699
123700
123701
123702
123703
123704
123705
123706
......
123748
123749
123750
123751
123752
123753
123754


























123755
123756
123757
123758
123759
123760
123761




123762
123763
123764
123765
123766
123767
123768
123769
123770
123771
......
123772
123773
123774
123775
123776
123777
123778

123779
123780
123781
123782
123783
123784
123785
123786
123787
123788
123789
123790



123791
123792
123793
123794
123795
123796
123797
123798
123799
123800
123801












123802
























































123803
123804
123805
123806
123807
123808
123809
123810
123811

123812
123813
123814
123815

123816

123817
123818
123819
123820
123821

123822
123823



123824

123825
123826

123827
123828



123829
123830






123831
123832
123833

123834
123835
123836
123837
123838
123839
123840
......
123952
123953
123954
123955
123956
123957
123958
123959
123960






123961
123962
123963
123964
123965
123966
123967
123968
......
124276
124277
124278
124279
124280
124281
124282

































124283
124284
124285
124286
124287
124288
124289
......
124372
124373
124374
124375
124376
124377
124378
124379

124380
124381
124382
124383
124384
124385
124386
......
124486
124487
124488
124489
124490
124491
124492

124493
124494
124495
124496
124497
124498
124499
......
124505
124506
124507
124508
124509
124510
124511





124512



124513
124514
124515
124516
124517
124518
124519
124520
124521
124522
124523
124524
124525
124526
124527
124528
124529
124530
124531
124532
124533
124534
124535

124536

124537
124538
124539
124540

124541

124542
124543
124544
124545
124546
124547
124548
......
124601
124602
124603
124604
124605
124606
124607


124608
124609
124610
124611
124612
124613
124614
124615
124616
124617
124618
124619
124620
124621
124622
124623
124624
124625
124626
124627
......
124647
124648
124649
124650
124651
124652
124653
124654
124655
124656
124657
124658
124659
124660
124661
124662
124663
124664
124665
124666
124667
124668
......
124690
124691
124692
124693
124694
124695
124696

124697
124698
124699
124700
124701
124702
124703
124704
124705
124706


124707
124708
124709
124710
124711
124712
124713
......
124714
124715
124716
124717
124718
124719
124720
124721
124722
124723
124724
124725
124726
124727
124728
124729
124730
124731
124732
124733
124734
124735
124736
124737
124738
124739
124740
124741





124742
124743
124744
124745
124746
124747
124748
......
124767
124768
124769
124770
124771
124772
124773
124774
124775
124776
124777
124778
124779
124780
124781
124782
124783
124784
124785


124786
124787
124788






124789
124790
124791
124792
124793
124794

124795
124796
124797
124798
124799
124800
124801
......
124803
124804
124805
124806
124807
124808
124809
124810
124811
124812
124813
124814
124815
124816
124817
124818
......
124828
124829
124830
124831
124832
124833
124834
124835
124836
124837
124838
124839
124840
124841
124842
124843
124844
......
124907
124908
124909
124910
124911
124912
124913
124914
124915
124916
124917
124918
124919
124920
124921
......
125208
125209
125210
125211
125212
125213
125214
125215
125216
125217
125218
125219
125220
125221
125222
......
125226
125227
125228
125229
125230
125231
125232
125233
125234
125235
125236
125237
125238
125239
125240
125241
125242
125243
125244
125245
125246
......
125341
125342
125343
125344
125345
125346
125347
125348
125349
125350
125351
125352
125353
125354
125355
125356
125357
125358
125359


125360
125361
125362
125363
125364
125365
125366
125367
125368
125369
125370
125371
125372
125373
......
125554
125555
125556
125557
125558
125559
125560
125561
125562
125563
125564
125565
125566
125567
125568
......
126087
126088
126089
126090
126091
126092
126093
126094

126095
126096
126097
126098
126099
126100
126101

126102
126103
126104
126105
126106
126107
126108
126109











126110
126111
126112
126113
126114
126115
126116
126117
126118
126119
126120
126121
126122
126123
126124
126125
126126
126127
126128
126129
126130
126131
126132
......
126175
126176
126177
126178
126179
126180
126181

126182
126183
126184
126185
126186
126187
126188
......
126201
126202
126203
126204
126205
126206
126207







126208
126209
126210
126211
126212
126213
126214
126215
126216
126217
126218
126219

126220
126221
126222
126223
126224
126225
126226
......
126415
126416
126417
126418
126419
126420
126421





















































126422
126423
126424
126425
126426
126427
126428
......
126436
126437
126438
126439
126440
126441
126442
126443
126444
126445
126446
126447
126448
126449
126450
......
126539
126540
126541
126542
126543
126544
126545
126546
126547
126548
126549
126550
126551

126552
126553
126554
126555
126556
126557
126558
126559
......
126613
126614
126615
126616
126617
126618
126619
126620
126621
126622
126623
126624
126625
126626
126627
......
127279
127280
127281
127282
127283
127284
127285
127286
127287
127288
127289
127290
127291
127292
127293
......
127454
127455
127456
127457
127458
127459
127460
127461

127462
127463
127464
127465
127466
127467
127468
127469
127470

127471
127472
127473
127474
127475
127476
127477
......
127552
127553
127554
127555
127556
127557
127558









127559
127560
127561
127562
127563
127564
127565
127566

127567
127568
127569
127570
127571
127572
127573
......
127835
127836
127837
127838
127839
127840
127841
127842
127843
127844
127845
127846
127847
127848
127849
......
128012
128013
128014
128015
128016
128017
128018
128019

128020
128021
128022
128023
128024
128025
128026
......
128042
128043
128044
128045
128046
128047
128048
128049
128050
128051
128052
128053
128054
128055
128056
128057
......
128062
128063
128064
128065
128066
128067
128068

128069
128070
128071
128072
128073
128074
128075
128076
128077


128078
128079
128080
128081
128082
128083
128084
128085
128086
128087
128088
128089
128090
128091
128092


128093
128094
128095
128096
128097
128098
128099
128100
128101
......
128177
128178
128179
128180
128181
128182
128183
128184
128185
128186
128187
128188
128189
128190
128191
......
128201
128202
128203
128204
128205
128206
128207
128208
128209
128210
128211
128212
128213
128214
128215
128216
......
128291
128292
128293
128294
128295
128296
128297
128298
128299
128300





128301
128302
128303
128304
128305
128306
128307
......
128814
128815
128816
128817
128818
128819
128820


































































128821
128822
128823
128824
128825
128826
128827
......
128853
128854
128855
128856
128857
128858
128859


128860
128861
128862
128863
128864
128865
128866
128867
128868
128869


128870
128871
128872
128873
128874
128875

128876
128877
128878
128879
128880
128881
128882


128883
128884
128885
128886
128887
128888
128889
......
128919
128920
128921
128922
128923
128924
128925


128926
128927
128928
128929
128930
128931
128932
......
128935
128936
128937
128938
128939
128940
128941

128942









128943
128944
128945
128946
128947
128948
128949
128950
128951
128952
128953
128954
128955
128956
......
128962
128963
128964
128965
128966
128967
128968



128969
128970
128971
128972
128973
128974
128975
128976
128977
128978
128979
128980

128981
128982
128983
128984
128985
128986



128987
128988
128989
128990
128991
128992
128993
......
129079
129080
129081
129082
129083
129084
129085


129086
129087
129088
129089
129090
129091
129092
......
129118
129119
129120
129121
129122
129123
129124


129125
129126
129127
129128
129129
129130
129131
......
129200
129201
129202
129203
129204
129205
129206
129207
129208
129209
129210
129211
129212
129213
129214
......
129354
129355
129356
129357
129358
129359
129360


129361
129362
129363
129364
129365
129366
129367
......
129482
129483
129484
129485
129486
129487
129488

129489
129490
129491
129492
129493
129494
129495
......
129570
129571
129572
129573
129574
129575
129576

129577
129578
129579
129580
129581
129582
129583
......
129643
129644
129645
129646
129647
129648
129649

129650
129651
129652
129653
129654
129655
129656
129657
129658

129659
129660
129661
129662
129663
129664
129665
129666
129667
129668
129669
129670
129671
129672
129673
129674
129675
129676
129677
129678
129679
......
129682
129683
129684
129685
129686
129687
129688

129689
129690
129691
129692
129693
129694
129695
129696
......
129708
129709
129710
129711
129712
129713
129714

129715
129716
129717
129718
129719
129720
129721
129722
129723
129724
129725
129726
129727

129728
129729
129730
129731
129732
129733
129734
129735

129736
129737
129738
129739
129740
129741
129742
129743
......
130029
130030
130031
130032
130033
130034
130035








130036
130037
130038
130039
130040
130041
130042
......
130065
130066
130067
130068
130069
130070
130071
130072
130073






130074
130075
130076
130077
130078
130079
130080






130081
130082
130083
130084
130085














130086
130087
130088
130089
130090
130091
130092
......
130107
130108
130109
130110
130111
130112
130113
130114
130115
130116
130117
130118
130119
130120
130121
......
130599
130600
130601
130602
130603
130604
130605
130606
130607
130608
130609
130610
130611
130612
130613
......
130882
130883
130884
130885
130886
130887
130888
130889
130890
130891
130892
130893
130894
130895
130896
130897
130898
130899
130900


130901
130902
130903
130904



130905
130906
130907
130908
130909
130910
130911
......
131301
131302
131303
131304
131305
131306
131307

131308
131309
131310
131311

131312
131313
131314
131315
131316
131317
131318
......
131506
131507
131508
131509
131510
131511
131512
131513
131514
131515
131516
131517
131518
131519
131520
131521
131522
131523
131524
131525
131526
131527
131528
131529
131530
131531
131532
131533
131534
131535
131536
131537
131538
131539
131540
131541
131542
131543
131544
......
131577
131578
131579
131580
131581
131582
131583

















131584
131585
131586
131587
131588
131589
131590
131591
......
131740
131741
131742
131743
131744
131745
131746
131747
131748
131749
131750
131751
131752
131753
131754
131755
131756
131757
131758
131759
131760
131761
131762
131763
131764
131765
131766
131767
131768
131769
131770
131771
131772
131773
131774
......
131792
131793
131794
131795
131796
131797
131798
131799
131800
131801
131802
131803
131804
131805
131806
131807
131808
131809
131810

131811
131812


131813
131814
131815




131816
131817
131818
131819
131820
131821
131822
131823
131824
......
131828
131829
131830
131831
131832
131833
131834
131835
131836
131837
131838
131839
131840
131841
131842
131843
131844
131845
131846
131847
131848
131849
131850
131851
131852
131853
131854
131855
131856
131857
131858
131859
131860
131861
131862
131863
131864
131865
131866
131867
131868
131869
131870
131871
131872
131873
131874
131875
131876
131877
131878
131879
131880
131881
131882
131883
131884
131885
131886
131887
131888
131889
131890
131891
131892
131893
131894
131895
131896
131897
131898
131899
131900
131901
131902
131903
131904
131905
131906
131907
131908
131909
131910
131911
131912
131913
131914
131915
131916
131917
131918
131919
131920
131921
131922
131923
131924
131925
131926
131927
131928
131929
131930
131931
131932
131933
131934
131935
131936
131937
131938
131939
131940
131941
131942
131943
131944
131945
131946
131947
131948
131949
131950
131951
131952
131953
131954
131955
131956
131957
131958
131959
131960
131961
131962
131963
131964
131965
131966
131967
131968
131969
131970
131971
131972
131973
131974
131975
131976
131977
131978
131979
131980
131981
131982
131983
131984
131985
131986
131987






131988
131989
131990
131991
131992
131993
131994
......
131995
131996
131997
131998
131999
132000
132001
132002
132003
132004
132005
132006
132007
132008
132009
132010
132011
132012
132013
132014
132015
132016
132017
132018
132019
132020
132021
132022
132023
132024
132025
132026
132027
132028
132029
132030
132031
132032
132033
132034
132035
132036
132037

132038
132039
132040
132041
132042
132043
132044
132045
132046
132047
132048
132049
132050




132051
132052
132053
132054
132055
132056
132057
132058
132059
132060
132061
132062
132063
132064
132065
132066
132067
132068
132069
132070
132071


132072
132073
132074
132075
132076
132077
132078
132079
132080
132081
132082
132083
132084
132085
132086
132087
132088
132089
132090
132091
132092
132093
132094
132095
132096
132097
132098
132099
132100
132101
132102
132103
132104
132105
132106
132107
132108
132109
132110
132111
132112
132113
132114
132115
132116
132117
132118
132119
132120
132121
132122
132123
132124
132125
132126
132127
132128
132129
132130
132131
132132
132133
132134
132135
132136






132137
132138
132139
132140


132141
132142
132143
132144
132145
132146
132147

132148
132149

132150
132151
132152
132153
132154
132155
132156
132157
132158
132159
132160
132161
132162
132163
132164
132165
132166
132167
132168
132169
132170
132171
132172
132173
132174
132175
132176
132177
132178
132179
132180
132181
132182
132183
132184
132185
132186
132187
132188
132189
132190
132191







132192
132193
132194
132195
132196
132197
132198
132199
132200



132201
132202
132203
132204
132205
132206
132207
132208
132209
132210
132211
132212
132213
132214
132215
132216
132217
132218
132219
132220
132221
132222
132223
132224
132225
132226
132227
132228
132229








132230
132231
132232
132233
132234
132235
132236
132237
132238
132239
132240
132241
132242
132243
132244
132245
132246
132247
132248
132249
132250
132251
132252
132253
132254
132255
132256
132257
132258
132259
132260
132261
132262
132263
132264
132265
132266
132267
132268
132269
132270
132271
132272
132273
132274
132275
132276









132277
132278
132279
132280
132281
132282
132283
......
132503
132504
132505
132506
132507
132508
132509
132510
132511
132512
132513
132514
132515
132516
132517
......
132679
132680
132681
132682
132683
132684
132685

132686

132687
132688
132689
132690
132691
132692
132693
132694
132695
132696
132697
132698
132699
132700
132701

132702

132703
132704
132705
132706
132707
132708

132709
132710
132711
132712
132713
132714
132715
132716
132717
132718
132719
132720
132721
132722
132723
132724
132725
132726
132727
132728
132729
132730
132731
132732
132733
132734
132735
132736
132737
132738
132739
132740
132741
132742
132743
132744
132745
132746
132747
132748
132749
132750
132751
132752
132753
132754
132755
132756
132757
132758
132759
132760
132761
132762
132763
132764
132765
132766
132767
132768
132769
132770
132771
132772
132773
132774
132775
132776
132777
132778
132779
132780
132781
132782
132783
132784
132785
132786
132787
132788
132789
132790
132791
132792
132793
132794
132795
132796
132797
132798
132799
132800
132801
132802
132803
132804
132805
132806
132807
132808
132809
132810
132811
132812
132813
132814
132815
132816
132817
132818
132819
132820
132821
132822
132823
132824
132825
132826
132827
132828
132829
132830
132831
132832
132833
132834
132835
132836
132837
132838
132839
132840
132841
132842
132843
132844
132845
132846
132847
132848
132849
132850
132851
132852
132853
132854
132855
132856
132857
132858
132859
132860
132861
132862
132863
132864
132865
132866
132867
132868
132869
132870
132871
132872
132873
132874
132875
132876
132877
132878
132879
132880
132881
......
133124
133125
133126
133127
133128
133129
133130
133131
133132
133133
133134
133135
133136
133137
133138
133139
133140
133141
133142
133143
133144
133145
133146
133147
133148
133149
133150
133151
133152
133153
133154
133155
133156
133157
133158
133159
133160
133161
133162
133163
133164
133165
133166
133167
133168
133169
133170
133171
133172
133173
133174
133175
133176
133177
133178
133179
133180
133181
......
133433
133434
133435
133436
133437
133438
133439

133440

133441
133442
133443
133444
133445
133446
133447
......
133450
133451
133452
133453
133454
133455
133456

133457
133458
133459
133460
133461
133462

133463
133464
133465
133466
133467
133468
133469
......
133743
133744
133745
133746
133747
133748
133749
133750
133751
133752
133753
133754
133755
133756
133757
......
133882
133883
133884
133885
133886
133887
133888
133889
133890
133891
133892
133893
133894
133895
133896
133897
133898
133899
133900
133901
133902
133903
......
133925
133926
133927
133928
133929
133930
133931
133932
133933
133934
133935
133936
133937
133938
133939
......
134053
134054
134055
134056
134057
134058
134059
134060
134061
134062
134063
134064
134065
134066
134067
134068
134069
......
134073
134074
134075
134076
134077
134078
134079
134080
134081
134082
134083
134084
134085
134086
134087
134088
134089
134090
134091
134092
134093
134094
134095
134096
......
134165
134166
134167
134168
134169
134170
134171
134172
134173
134174
134175
134176
134177
134178
134179
134180
134181
134182
134183
134184
134185
134186
134187
134188
134189
134190
134191
134192
134193
134194
134195
134196
134197
134198
134199
......
134246
134247
134248
134249
134250
134251
134252





134253
134254
134255
134256
134257
134258
134259





134260
134261
134262
134263
134264
134265
134266
134267
134268
134269
134270
134271
134272
134273
134274
134275
134276
134277
134278
134279
134280
134281
134282
134283
134284
134285
134286
134287
134288
134289
134290
134291
134292
134293
134294
134295
134296
134297
134298
134299
134300
134301
134302
134303
134304
134305
134306
134307
134308
134309
134310









134311
134312
134313

134314
134315
134316
134317
134318
134319
134320
134321
134322
134323
134324
134325
134326
134327
134328
134329
134330
134331
134332
134333
134334
134335
134336
134337
134338
134339
134340
134341
134342
134343
134344
134345
134346
134347
134348
134349
134350
134351
134352
134353
134354
134355
134356
134357
134358
134359
134360
134361
134362
134363
134364
134365
134366
134367
134368
134369
134370
134371













134372
134373
134374
134375
134376
134377
134378
134379
134380
134381
134382
134383

134384
134385
134386

134387
134388
134389
134390


134391
134392
134393
134394
134395
134396
134397
134398
134399
134400
134401


134402
134403
134404
134405
134406
134407
134408
134409
134410
134411
134412
134413
134414
134415
134416
134417
134418
134419
134420
134421
134422
134423
134424
134425
134426
134427
134428
134429
134430
134431
134432
134433
134434
134435
134436
134437
134438
134439
134440
134441
134442
134443
134444
134445
134446
134447
134448
134449
134450
134451
134452
134453
134454
134455
134456
134457
134458
134459
134460
134461
134462
134463
134464
......
134503
134504
134505
134506
134507
134508
134509
134510
134511
134512
134513
134514
134515
134516
134517
134518
134519
134520
134521
134522
134523
134524
134525
134526
134527
134528
134529
134530
134531
134532
134533
134534
134535
134536
134537
134538
134539
134540
134541
134542
134543
134544
134545
134546
134547
134548
134549
134550
134551
134552
134553
134554
134555
134556
134557
134558
134559
134560
134561
134562
134563
134564
134565
134566
134567
134568
134569
134570
134571
134572
134573
134574
134575
134576
134577
134578
134579
134580
134581
134582
134583
134584
134585
134586
134587
134588
134589
134590
134591
134592
134593
134594
134595
134596
134597
134598
134599
134600
134601
134602
134603
134604
134605
134606
134607
134608
134609


134610
134611
134612
134613
134614
134615
134616
134617
134618
134619
134620
134621
134622
134623
134624
134625
134626
134627
134628
134629
134630
134631
134632
134633
134634
134635
134636
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134640
134641
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134646
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134649
134650
134651
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134654
134655
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134659
134660
134661
134662
134663
134664
134665
134666
134667
134668
134669
134670
134671
134672
134673
134674
134675
134676
134677
134678
134679
134680
134681
134682
134683
134684
134685
134686
134687
134688
134689
134690
134691
134692
134693
134694
134695
134696
134697
134698
134699
134700
134701
134702
134703
134704
134705
134706
134707
134708
134709
134710
134711
134712
134713
134714
134715
134716
134717
134718
134719
134720
134721
134722
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134751
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134760
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134762
134763
134764
134765
134766
134767
134768
134769
134770
134771
134772
134773
134774
134775
134776
134777
134778
134779
134780
134781
134782
134783
134784
134785
134786
134787
134788
134789
134790
134791
134792
134793
134794
134795
134796
134797
134798
134799
134800
134801
134802
134803
134804
134805
134806
134807
134808
134809
134810
134811
134812
134813
134814
134815
134816
134817
134818
134819
134820
134821
134822
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134826
134827
134828
134829
134830
134831
134832
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134835
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134843
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134845
134846
134847
134848
134849
134850
134851
134852
134853
134854
134855
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134857
134858
134859
134860
134861
134862
134863
134864
134865
134866
134867
134868
134869
134870
134871
134872
134873
134874
134875
134876
134877
134878
134879
134880
134881
134882
134883
134884
134885
......
135062
135063
135064
135065
135066
135067
135068
135069
135070
135071
135072
135073
135074
135075
135076
......
135930
135931
135932
135933
135934
135935
135936
135937
135938

135939
135940
135941
135942
135943
135944











135945
135946
135947
135948
135949
135950
135951
......
135958
135959
135960
135961
135962
135963
135964
135965
135966
135967
135968
135969
135970
135971
135972
135973
135974
135975
135976
135977
135978
135979
135980
......
136134
136135
136136
136137
136138
136139
136140
136141
136142
136143
136144
136145
136146
136147
136148
......
136299
136300
136301
136302
136303
136304
136305
136306
136307
136308
136309
136310
136311
136312
136313
......
136459
136460
136461
136462
136463
136464
136465
136466
136467
136468
136469
136470
136471
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136478
136479
136480
136481
136482
136483
136484
136485
136486
136487
136488
136489
136490
......
136549
136550
136551
136552
136553
136554
136555
136556
136557
136558
136559
136560
136561
136562
136563
......
136715
136716
136717
136718
136719
136720
136721
136722
136723
136724
136725
136726
136727
136728
136729
......
136769
136770
136771
136772
136773
136774
136775
136776
136777
136778
136779
136780
136781
136782
136783
......
137134
137135
137136
137137
137138
137139
137140
137141
137142
137143
137144
137145
137146
137147
137148
137149
137150
137151
137152
137153
137154
137155
137156
137157
137158
137159
137160
137161
137162
......
137172
137173
137174
137175
137176
137177
137178
137179
137180
137181
137182
137183
137184
137185
137186
......
137201
137202
137203
137204
137205
137206
137207
137208
137209
137210
137211
137212





137213
137214
137215
137216
137217
137218
137219
......
137322
137323
137324
137325
137326
137327
137328
137329
137330
137331
137332
137333
137334
137335
137336
137337
137338
137339
137340
137341
137342
137343
137344
137345
137346
137347
137348
137349
137350
137351
137352
137353
137354
137355
137356
137357
137358
137359
137360
137361
137362
......
137499
137500
137501
137502
137503
137504
137505
137506
137507
137508
137509
137510
137511
137512
137513
137514
......
137907
137908
137909
137910
137911
137912
137913
137914
137915
137916
137917
137918
137919
137920
137921
......
137930
137931
137932
137933
137934
137935
137936
137937
137938
137939
137940
137941
137942
137943
137944
......
137961
137962
137963
137964
137965
137966
137967
137968
137969
137970
137971
137972
137973
137974
137975
......
137977
137978
137979
137980
137981
137982
137983
137984
137985
137986
137987
137988
137989
137990
137991
......
138093
138094
138095
138096
138097
138098
138099
138100
138101
138102
138103
138104
138105
138106
138107
138108
138109
138110
138111
138112
138113
138114
138115
138116
138117
138118
138119
138120
138121
......
138150
138151
138152
138153
138154
138155
138156
138157
138158
138159
138160
138161
138162
138163
138164
......
138190
138191
138192
138193
138194
138195
138196
138197
138198
138199
138200
138201
138202
138203
138204
......
138222
138223
138224
138225
138226
138227
138228
138229
138230
138231
138232
138233
138234
138235
138236
......
138243
138244
138245
138246
138247
138248
138249
138250
138251
138252
138253
138254
138255
138256
138257
138258
138259
138260
138261


138262
138263
138264
138265
138266
138267
138268
......
138271
138272
138273
138274
138275
138276
138277
138278
138279
138280
138281
138282
138283
138284
138285
......
138299
138300
138301
138302
138303
138304
138305
138306
138307
138308
138309
138310
138311
138312
138313
......
138324
138325
138326
138327
138328
138329
138330
138331
138332
138333
138334
138335
138336
138337
138338
......
138349
138350
138351
138352
138353
138354
138355
138356
138357
138358
138359
138360
138361
138362
138363
......
138375
138376
138377
138378
138379
138380
138381
138382
138383
138384
138385
138386
138387
138388
138389
......
138424
138425
138426
138427
138428
138429
138430
138431
138432
138433
138434
138435
138436
138437
138438
......
138445
138446
138447
138448
138449
138450
138451
138452
138453
138454
138455
138456
138457
138458
138459
......
138472
138473
138474
138475
138476
138477
138478
138479
138480
138481
138482
138483
138484
138485
138486
......
138527
138528
138529
138530
138531
138532
138533
138534
138535
138536
138537
138538
138539
138540
138541
......
138618
138619
138620
138621
138622
138623
138624
138625
138626
138627
138628
138629
138630
138631
138632
......
138646
138647
138648
138649
138650
138651
138652
138653
138654
138655
138656
138657
138658
138659
138660
......
138691
138692
138693
138694
138695
138696
138697
138698
138699
138700
138701
138702
138703
138704
138705
138706
138707
138708
138709
138710
138711
138712
138713
138714
138715
138716
138717
138718
138719
138720
138721
138722
138723
138724
138725
138726
138727
138728
138729
138730
138731
138732
......
138866
138867
138868
138869
138870
138871
138872
138873
138874
138875
138876
138877
138878
138879
138880
......
139349
139350
139351
139352
139353
139354
139355
139356
139357
139358
139359
139360
139361
139362
139363
139364
139365
139366
139367
139368
139369
139370
139371










139372
139373
139374
139375
139376
139377
139378
139379
139380
139381
139382
139383
......
139396
139397
139398
139399
139400
139401
139402
139403
139404
139405
139406
139407
139408
139409
139410
139411
139412
139413
139414
139415
......
139490
139491
139492
139493
139494
139495
139496
139497
139498
139499
139500
139501
139502
139503
139504
139505
139506
139507
139508
139509
139510
139511
139512
139513
139514
139515
139516
139517
139518
139519
139520
139521
139522
139523
139524
......
139549
139550
139551
139552
139553
139554
139555
139556
139557
139558
139559
139560
139561
139562
139563
139564
139565
139566
139567
139568
139569
139570
139571
139572
139573
139574
139575
139576
......
139587
139588
139589
139590
139591
139592
139593
139594
139595
139596
139597
139598
139599
139600
139601
......
139617
139618
139619
139620
139621
139622
139623
139624
139625
139626
139627
139628
139629
139630
139631
......
139638
139639
139640
139641
139642
139643
139644
139645
139646
139647
139648
139649
139650
139651
139652
......
139660
139661
139662
139663
139664
139665
139666
139667
139668
139669
139670
139671
139672
139673
139674
139675
139676
139677
139678
139679
139680
139681
139682
139683
139684
139685
......
139728
139729
139730
139731
139732
139733
139734
139735
139736
139737
139738
139739
139740
139741
139742
139743
139744
139745
139746
139747
139748
139749
139750
......
139854
139855
139856
139857
139858
139859
139860
139861
139862
139863
139864
139865
139866
139867
139868
......
139870
139871
139872
139873
139874
139875
139876
139877
139878
139879
139880
139881
139882
139883
139884
139885
139886
139887
139888
139889
139890
139891
139892
139893
139894
139895
139896
139897
......
139923
139924
139925
139926
139927
139928
139929
139930
139931
139932
139933
139934
139935
139936
139937
......
140191
140192
140193
140194
140195
140196
140197









140198
140199
140200
140201
140202
140203
140204
......
140268
140269
140270
140271
140272
140273
140274
140275
140276
140277
140278
140279
140280
140281
140282
......
140283
140284
140285
140286
140287
140288
140289
140290
140291
140292
140293
140294
140295
140296
140297
140298
140299
140300
140301
140302
140303
140304
140305
140306
......
140312
140313
140314
140315
140316
140317
140318
140319
140320
140321
140322
140323
140324
140325
140326
140327
140328
140329
140330
140331
140332
140333
140334
140335
140336
140337
140338
......
140340
140341
140342
140343
140344
140345
140346
140347
140348
140349
140350
140351
140352
140353
140354
......
140357
140358
140359
140360
140361
140362
140363
140364
140365
140366
140367
140368
140369
140370
140371
......
140392
140393
140394
140395
140396
140397
140398
140399
140400
140401
140402
140403
140404
140405
140406
......
140429
140430
140431
140432
140433
140434
140435
140436
140437
140438
140439
140440
140441
140442
140443
......
140583
140584
140585
140586
140587
140588
140589
140590
140591
140592
140593
140594
140595
140596
140597
......
147586
147587
147588
147589
147590
147591
147592
147593
147594
147595
147596
147597
147598
147599
147600
......
161427
161428
161429
161430
161431
161432
161433
161434
161435
161436
161437
161438
161439
161440
161441
......
163387
163388
163389
163390
163391
163392
163393
163394
163395
163396
163397
163398
163399
163400
163401
......
163411
163412
163413
163414
163415
163416
163417
163418
163419
163420
163421
163422
163423
163424
163425
......
163436
163437
163438
163439
163440
163441
163442
163443
163444
163445
163446
163447
163448
163449
163450
......
163987
163988
163989
163990
163991
163992
163993
163994
163995
163996
163997
163998
163999
164000
164001
......
164463
164464
164465
164466
164467
164468
164469
164470
164471
164472
164473
164474
164475
164476
164477
......
164667
164668
164669
164670
164671
164672
164673
164674
164675
164676
164677
164678
164679
164680
164681
164682
164683
164684
164685
164686
164687
164688
164689
164690
164691
164692
164693






164694
164695
164696
164697
164698
164699
164700
164701
164702
164703
164704
164705
164706
164707
164708
164709
164710
164711
164712
164713
164714
......
164736
164737
164738
164739
164740
164741
164742
164743
164744
164745
164746
164747
164748
164749
164750
164751
164752
164753
164754
164755
164756
164757
164758
164759
164760
164761
164762
164763
164764
164765
164766
164767
164768
164769
164770
164771
164772
164773
164774
164775
164776
......
164782
164783
164784
164785
164786
164787
164788
164789
164790
164791
164792
164793
164794
164795
164796
164797
164798
164799
164800
164801
164802
164803
......
164831
164832
164833
164834
164835
164836
164837
164838
164839
164840
164841
164842
164843
164844
164845
......
164869
164870
164871
164872
164873
164874
164875
164876
164877
164878
164879
164880
164881
164882
164883
......
164913
164914
164915
164916
164917
164918
164919
164920
164921
164922
164923
164924
164925
164926
164927
164928
164929
164930
164931
164932
164933
164934
164935
164936
164937
......
167179
167180
167181
167182
167183
167184
167185
167186
167187
167188
167189
167190
167191
167192
167193
167194




167195
167196
167197
167198
167199
167200
167201
......
168017
168018
168019
168020
168021
168022
168023
168024
168025
168026
168027
168028
168029
168030
168031
......
168322
168323
168324
168325
168326
168327
168328
168329
168330
168331
168332
168333
168334
168335
168336
168337
......
168345
168346
168347
168348
168349
168350
168351
168352
168353
168354
168355
168356
168357
168358
168359
168360
......
168455
168456
168457
168458
168459
168460
168461














168462
168463
168464
168465
168466
168467
168468
168469
168470

168471
168472
168473
168474
168475
168476
168477
168478
168479
168480
168481

168482
168483
168484
168485
168486
168487
168488
168489
168490
168491
168492
168493
168494
168495
168496
......
168514
168515
168516
168517
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168519
168520
168521
168522
168523
168524
168525
168526
168527
168528
......
168552
168553
168554
168555
168556
168557
168558

168559
168560
168561
168562
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168564
168565
168566
168567
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168570
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168578
168579
168580
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168582
168583
168584
168585
168586
168587
......
168608
168609
168610
168611
168612
168613
168614
168615
168616
168617
168618
168619
168620
168621
168622
......
168636
168637
168638
168639
168640
168641
168642
168643
168644
168645
168646
168647
168648
168649
168650
......
169463
169464
169465
169466
169467
169468
169469
169470
169471
169472
169473
169474
169475
169476
169477
169478
169479
169480
169481
169482
169483
169484
169485
169486
169487
169488
169489
169490
169491
......
170163
170164
170165
170166
170167
170168
170169
170170
170171
170172
170173
170174
170175
170176
170177
......
170217
170218
170219
170220
170221
170222
170223
170224
170225
170226
170227
170228
170229
170230
170231
......
171722
171723
171724
171725
171726
171727
171728
171729
171730
171731
171732
171733
171734
171735
171736
......
171816
171817
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171819
171820
171821
171822
171823
171824
171825
171826
171827
171828
171829
171830
......
171878
171879
171880
171881
171882
171883
171884
171885
171886
171887
171888
171889
171890
171891
171892
......
171907
171908
171909
171910
171911
171912
171913
171914
171915
171916
171917
171918
171919
171920
171921
......
171925
171926
171927
171928
171929
171930
171931
171932
171933
171934
171935
171936
171937
171938
171939
......
172615
172616
172617
172618
172619
172620
172621
172622
172623
172624
172625
172626
172627
172628
172629
172630
172631
172632
172633
172634
172635
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172638
172639
172640
172641
172642
172643
172644
172645
172646
172647
172648
172649
172650
172651
......
172652
172653
172654
172655
172656
172657
172658
172659
172660
172661
172662
172663
172664
172665
172666
172667
172668
172669
172670
172671
172672
172673
172674
172675
172676
172677
172678
172679
172680
172681
172682
172683
172684
172685
172686
172687
172688
172689
172690
172691
......
172692
172693
172694
172695
172696
172697
172698
172699
172700
172701
172702
172703
172704
172705
172706
......
172742
172743
172744
172745
172746
172747
172748
172749
172750
172751
172752
172753
172754
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172756
172757
172758
172759
172760
172761
172762
172763
172764
172765
172766
172767
......
173174
173175
173176
173177
173178
173179
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173181
173182
173183
173184
173185
173186
173187
173188
173189
173190
173191
173192
173193
173194
173195
173196
173197
......
173203
173204
173205
173206
173207
173208
173209
173210
173211
173212
173213
173214
173215
173216
173217
......
173226
173227
173228
173229
173230
173231
173232
173233
173234
173235
173236
173237
173238
173239
173240
......
173254
173255
173256
173257
173258
173259
173260
173261
173262
173263
173264
173265
173266
173267
173268
......
173288
173289
173290
173291
173292
173293
173294
173295
173296
173297
173298
173299
173300
173301
173302
......
173311
173312
173313
173314
173315
173316
173317
173318
173319
173320
173321
173322
173323
173324
173325
......
173329
173330
173331
173332
173333
173334
173335
173336
173337
173338
173339
173340
173341
173342
173343
......
173503
173504
173505
173506
173507
173508
173509
173510
173511
173512
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173514
173515
173516
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......
173522
173523
173524
173525
173526
173527
173528
173529
173530
173531
173532
173533
173534
173535
173536
......
174402
174403
174404
174405
174406
174407
174408
174409
174410
174411
174412
174413
174414
174415
174416
......
174430
174431
174432
174433
174434
174435
174436
174437
174438
174439
174440
174441
174442
174443
174444
......
174765
174766
174767
174768
174769
174770
174771
174772
174773
174774
174775
174776
174777
174778
174779
......
174782
174783
174784
174785
174786
174787
174788
174789
174790
174791
174792
174793
174794
174795
174796
......
174798
174799
174800
174801
174802
174803
174804
174805
174806
174807
174808
174809
174810
174811
174812
174813
174814
174815
174816
174817
174818
174819
174820
174821
174822
174823
......
174828
174829
174830
174831
174832
174833
174834
174835
174836
174837
174838
174839
174840
174841
174842
174843
174844
174845
174846
174847
174848
174849
174850
174851
174852
174853
174854
174855
174856
174857
174858
174859
174860
174861
174862
174863
......
174878
174879
174880
174881
174882
174883
174884
174885
174886
174887
174888
174889
174890
174891
174892
......
177110
177111
177112
177113
177114
177115
177116
177117
177118
177119
177120
177121
177122
177123
177124
......
177455
177456
177457
177458
177459
177460
177461
177462
177463
177464
177465
177466
177467
177468
177469
......
177714
177715
177716
177717
177718
177719
177720
177721
177722
177723
177724
177725
177726
177727
177728
......
178455
178456
178457
178458
178459
178460
178461

178462
178463
178464
178465
178466
178467
178468
......
178512
178513
178514
178515
178516
178517
178518

178519
178520
178521
178522
178523
178524
178525
178526
178527
178528
178529
178530
178531
......
178631
178632
178633
178634
178635
178636
178637
178638
178639
178640
178641
178642
178643
178644
178645
178646
178647
178648

178649
178650
178651
178652
178653
178654
178655
178656
178657
178658
178659
178660
178661
178662
178663
178664
178665
178666
178667
178668
178669
178670
178671
178672
178673
......
178691
178692
178693
178694
178695
178696
178697
178698
178699
178700
178701
178702
178703
178704
178705
178706
178707
178708
178709

178710

178711
178712
178713
178714




178715
178716
178717
178718
178719
178720
178721
178722
178723
......
178727
178728
178729
178730
178731
178732
178733
178734
178735
178736
178737
178738
178739
178740
178741
178742
178743

178744
178745
178746
178747
178748
178749
178750


178751
178752
178753


178754
178755
178756
178757
178758
178759
178760
178761
178762


178763
178764
178765
178766
178767
178768
178769

178770
178771
178772
178773
178774
178775


178776
178777
178778
178779
178780
178781
178782
......
178875
178876
178877
178878
178879
178880
178881
178882
178883
178884
178885
178886
178887
178888
178889
178890
178891
178892
178893
......
178897
178898
178899
178900
178901
178902
178903

178904
178905

178906
178907
178908
178909
178910
178911
178912
178913
178914
178915
178916
178917
178918
178919
178920
178921
178922
178923
178924
......
179020
179021
179022
179023
179024
179025
179026
179027
179028
179029
179030
179031
179032
179033
179034
179035
179036
179037
179038
179039
179040
179041
179042
179043
179044
179045
179046
179047
179048
179049
179050
179051
179052
179053
179054
179055
179056
179057
179058
179059
179060
......
179123
179124
179125
179126
179127
179128
179129
179130
179131
179132
179133
179134
179135
179136
179137
179138
179139
179140
179141
179142
179143
179144
179145
179146
179147
179148
179149
179150
179151
179152
179153
179154
179155
179156
179157
179158
179159
179160
179161
179162
179163
179164
179165
179166
179167
179168
179169
179170
179171
179172
179173
179174
179175
179176
179177
179178
179179
179180
......
179293
179294
179295
179296
179297
179298
179299
179300
179301
179302
179303
179304
179305
179306
179307
179308
179309

179310
179311
179312

179313
179314
179315
179316
179317
179318
179319
179320
179321
179322
179323
179324
179325
179326
179327
179328
179329
179330
......
179381
179382
179383
179384
179385
179386
179387
179388
179389
179390
179391
179392
179393
179394
179395
179396
179397
179398
179399
179400
179401
179402
179403
179404
179405
179406
179407
179408
179409
179410
179411
179412
179413
179414
179415
179416
179417
179418
179419
179420
179421
179422
179423
179424
179425
179426
179427
179428
179429
179430
179431
179432
179433
179434





179435
179436
179437
179438
179439
179440
179441
179442
179443






179444
179445
179446
179447
179448
179449
179450
179451
179452
179453
179454
179455
179456
179457
179458
179459
179460
179461
179462
179463
179464
179465
179466
179467
179468
179469
179470
179471
179472
179473
179474
179475
179476
179477
179478
179479
179480
179481
179482
179483
179484
179485
179486
179487
179488
179489
179490
179491
179492
179493
179494
179495
179496
179497
179498
179499
179500
179501
179502
179503
179504
179505
179506
179507
179508
......
179688
179689
179690
179691
179692
179693
179694
179695
179696
179697
179698
179699
179700
179701
179702
......
179952
179953
179954
179955
179956
179957
179958
179959
179960
179961
179962
179963
179964
179965
179966
......
180008
180009
180010
180011
180012
180013
180014













































































































180015
180016
180017
180018
180019
180020
180021
......
180030
180031
180032
180033
180034
180035
180036
180037
180038
180039


180040
180041
180042
180043
180044
180045
180046

180047
180048
180049
180050
180051
180052
180053
180054
180055
180056
180057
180058
180059
180060
180061
180062
180063
180064


















180065
180066
180067
180068
180069

180070
180071
180072
180073
180074
180075
180076
180077
180078





180079
180080
180081
180082




180083
180084



180085









180086

180087
180088
180089
180090

180091
180092
180093
180094
180095
180096
180097


180098
180099
180100



180101
180102
180103
180104
180105
180106
180107
180108
180109
180110
180111
180112
180113
180114
180115
180116
180117
180118
180119







180120
180121
180122
180123
180124
180125
180126
180127
180128
180129
180130
180131
180132
180133
180134
180135
180136

180137
180138
180139
180140
180141
180142
180143
......
181848
181849
181850
181851
181852
181853
181854

181855
181856
181857
181858
181859
181860
181861
......
182434
182435
182436
182437
182438
182439
182440

182441
182442
182443
182444
182445
182446
182447
182448
182449
182450
182451
182452
182453
182454
182455
......
182461
182462
182463
182464
182465
182466
182467
182468
182469
182470
182471

182472
182473
182474

182475
182476
182477
182478
182479
182480
182481
......
183318
183319
183320
183321
183322
183323
183324
183325
183326
183327
183328
183329
183330
183331
183332
......
183339
183340
183341
183342
183343
183344
183345
183346
183347
183348
183349
183350
183351
183352
183353
183354


183355
183356
183357
183358
183359
183360
183361
183362
183363
183364
183365
183366





183367
183368
183369
183370
183371
183372
183373
......
183473
183474
183475
183476
183477
183478
183479




























183480
183481
183482
183483
183484
183485
183486
......
185569
185570
185571
185572
185573
185574
185575
185576
185577
185578
185579
185580
185581
185582
185583












185584
185585
185586
185587
185588
185589
185590
......
186386
186387
186388
186389
186390
186391
186392
186393
186394
186395
186396
186397
186398
186399
186400
......
186889
186890
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186894
186895
186896
186897
186898
186899
186900
186901
186902
186903
186904
186905
......
187135
187136
187137
187138
187139
187140
187141





187142
187143
187144
187145
187146
187147
187148
......
188061
188062
188063
188064
188065
188066
188067









188068
188069
188070
188071
188072
188073
188074
......
188166
188167
188168
188169
188170
188171
188172




188173
188174
188175
188176
188177
188178
188179
......
193943
193944
193945
193946
193947
193948
193949
193950
193951
193952
193953
193954
193955
193956
193957
......
194031
194032
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194034
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194043
194044
194045
194046
194047
194048
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194050
194051
194052
194053
194054
194055
194056
194057
194058
......
197424
197425
197426
197427
197428
197429
197430
197431
197432









197433


197434
197435
197436
197437
197438
197439
197440
/******************************************************************************
** This file is an amalgamation of many separate C source files from SQLite
** version 3.14.0.  By combining all the individual C code files into this 
** single large file, the entire code can be compiled as a single translation
** unit.  This allows many compilers to do optimizations that would not be
** possible if the files were compiled separately.  Performance improvements
** of 5% or more are commonly seen when SQLite is compiled as a single
** translation unit.
**
** This file is all you need to compile SQLite.  To use SQLite in other
** programs, you need this file and the "sqlite3.h" header file that defines
** the programming interface to the SQLite library.  (If you do not have 
** the "sqlite3.h" header file at hand, you will find a copy embedded within
** the text of this file.  Search for "Begin file sqlite3.h" to find the start
** of the embedded sqlite3.h header file.) Additional code files may be needed
** if you want a wrapper to interface SQLite with your choice of programming
** language. The code for the "sqlite3" command-line shell is also in a
** separate file. This file contains only code for the core SQLite library.
*/
................................................................................
** with the value (X*1000000 + Y*1000 + Z) where X, Y, and Z are the same
** numbers used in [SQLITE_VERSION].)^
** The SQLITE_VERSION_NUMBER for any given release of SQLite will also
** be larger than the release from which it is derived.  Either Y will
** be held constant and Z will be incremented or else Y will be incremented
** and Z will be reset to zero.
**

** Since version 3.6.18, SQLite source code has been stored in the
** <a href="http://www.fossil-scm.org/">Fossil configuration management
** system</a>.  ^The SQLITE_SOURCE_ID macro evaluates to
** a string which identifies a particular check-in of SQLite
** within its configuration management system.  ^The SQLITE_SOURCE_ID
** string contains the date and time of the check-in (UTC) and an SHA1
** hash of the entire source tree.
**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.14.0"
#define SQLITE_VERSION_NUMBER 3014000
#define SQLITE_SOURCE_ID      "2016-08-01 17:06:44 90d2c490fc2ed4e073711b84f989ca4d496dcfb5"

/*
** CAPI3REF: Run-Time Library Version Numbers
** KEYWORDS: sqlite3_version, sqlite3_sourceid
**
** These interfaces provide the same information as the [SQLITE_VERSION],
** [SQLITE_VERSION_NUMBER], and [SQLITE_SOURCE_ID] C preprocessor macros
................................................................................
** [SQLITE_VERSION_NUMBER].  ^The sqlite3_sourceid() function returns 
** a pointer to a string constant whose value is the same as the 
** [SQLITE_SOURCE_ID] C preprocessor macro.
**
** See also: [sqlite_version()] and [sqlite_source_id()].
*/
SQLITE_API const char sqlite3_version[] = SQLITE_VERSION;
SQLITE_API const char *SQLITE_APICALL sqlite3_libversion(void);
SQLITE_API const char *SQLITE_APICALL sqlite3_sourceid(void);
SQLITE_API int SQLITE_APICALL sqlite3_libversion_number(void);

/*
** CAPI3REF: Run-Time Library Compilation Options Diagnostics
**
** ^The sqlite3_compileoption_used() function returns 0 or 1 
** indicating whether the specified option was defined at 
** compile time.  ^The SQLITE_ prefix may be omitted from the 
................................................................................
** and sqlite3_compileoption_get() may be omitted by specifying the 
** [SQLITE_OMIT_COMPILEOPTION_DIAGS] option at compile time.
**
** See also: SQL functions [sqlite_compileoption_used()] and
** [sqlite_compileoption_get()] and the [compile_options pragma].
*/
#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
SQLITE_API int SQLITE_APICALL sqlite3_compileoption_used(const char *zOptName);
SQLITE_API const char *SQLITE_APICALL sqlite3_compileoption_get(int N);
#endif

/*
** CAPI3REF: Test To See If The Library Is Threadsafe
**
** ^The sqlite3_threadsafe() function returns zero if and only if
** SQLite was compiled with mutexing code omitted due to the
................................................................................
** sqlite3_threadsafe() function shows only the compile-time setting of
** thread safety, not any run-time changes to that setting made by
** sqlite3_config(). In other words, the return value from sqlite3_threadsafe()
** is unchanged by calls to sqlite3_config().)^
**
** See the [threading mode] documentation for additional information.
*/
SQLITE_API int SQLITE_APICALL sqlite3_threadsafe(void);

/*
** CAPI3REF: Database Connection Handle
** KEYWORDS: {database connection} {database connections}
**
** Each open SQLite database is represented by a pointer to an instance of
** the opaque structure named "sqlite3".  It is useful to think of an sqlite3
................................................................................
** must be either a NULL
** pointer or an [sqlite3] object pointer obtained
** from [sqlite3_open()], [sqlite3_open16()], or
** [sqlite3_open_v2()], and not previously closed.
** ^Calling sqlite3_close() or sqlite3_close_v2() with a NULL pointer
** argument is a harmless no-op.
*/
SQLITE_API int SQLITE_APICALL sqlite3_close(sqlite3*);
SQLITE_API int SQLITE_APICALL sqlite3_close_v2(sqlite3*);

/*
** The type for a callback function.
** This is legacy and deprecated.  It is included for historical
** compatibility and is not documented.
*/
typedef int (SQLITE_CALLBACK *sqlite3_callback)(void*,int,char**, char**);

/*
** CAPI3REF: One-Step Query Execution Interface
** METHOD: sqlite3
**
** The sqlite3_exec() interface is a convenience wrapper around
** [sqlite3_prepare_v2()], [sqlite3_step()], and [sqlite3_finalize()],
................................................................................
**      is a valid and open [database connection].
** <li> The application must not close the [database connection] specified by
**      the 1st parameter to sqlite3_exec() while sqlite3_exec() is running.
** <li> The application must not modify the SQL statement text passed into
**      the 2nd parameter of sqlite3_exec() while sqlite3_exec() is running.
** </ul>
*/
SQLITE_API int SQLITE_APICALL sqlite3_exec(
  sqlite3*,                                  /* An open database */
  const char *sql,                           /* SQL to be evaluated */
  int (SQLITE_CALLBACK *callback)(void*,int,char**,char**),  /* Callback function */
  void *,                                    /* 1st argument to callback */
  char **errmsg                              /* Error msg written here */
);

/*
** CAPI3REF: Result Codes
** KEYWORDS: {result code definitions}
................................................................................
** CAPI3REF: Extended Result Codes
** KEYWORDS: {extended result code definitions}
**
** In its default configuration, SQLite API routines return one of 30 integer
** [result codes].  However, experience has shown that many of
** these result codes are too coarse-grained.  They do not provide as
** much information about problems as programmers might like.  In an effort to
** address this, newer versions of SQLite (version 3.3.8 and later) include

** support for additional result codes that provide more detailed information
** about errors. These [extended result codes] are enabled or disabled
** on a per database connection basis using the
** [sqlite3_extended_result_codes()] API.  Or, the extended code for
** the most recent error can be obtained using
** [sqlite3_extended_errcode()].
*/
................................................................................
** fails to zero-fill short reads might seem to work.  However,
** failure to zero-fill short reads will eventually lead to
** database corruption.
*/
typedef struct sqlite3_io_methods sqlite3_io_methods;
struct sqlite3_io_methods {
  int iVersion;
  int (SQLITE_CALLBACK *xClose)(sqlite3_file*);
  int (SQLITE_CALLBACK *xRead)(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst);
  int (SQLITE_CALLBACK *xWrite)(sqlite3_file*, const void*, int iAmt, sqlite3_int64 iOfst);
  int (SQLITE_CALLBACK *xTruncate)(sqlite3_file*, sqlite3_int64 size);
  int (SQLITE_CALLBACK *xSync)(sqlite3_file*, int flags);
  int (SQLITE_CALLBACK *xFileSize)(sqlite3_file*, sqlite3_int64 *pSize);
  int (SQLITE_CALLBACK *xLock)(sqlite3_file*, int);
  int (SQLITE_CALLBACK *xUnlock)(sqlite3_file*, int);
  int (SQLITE_CALLBACK *xCheckReservedLock)(sqlite3_file*, int *pResOut);
  int (SQLITE_CALLBACK *xFileControl)(sqlite3_file*, int op, void *pArg);
  int (SQLITE_CALLBACK *xSectorSize)(sqlite3_file*);
  int (SQLITE_CALLBACK *xDeviceCharacteristics)(sqlite3_file*);
  /* Methods above are valid for version 1 */
  int (SQLITE_CALLBACK *xShmMap)(sqlite3_file*, int iPg, int pgsz, int, void volatile**);
  int (SQLITE_CALLBACK *xShmLock)(sqlite3_file*, int offset, int n, int flags);
  void (SQLITE_CALLBACK *xShmBarrier)(sqlite3_file*);
  int (SQLITE_CALLBACK *xShmUnmap)(sqlite3_file*, int deleteFlag);
  /* Methods above are valid for version 2 */
  int (SQLITE_CALLBACK *xFetch)(sqlite3_file*, sqlite3_int64 iOfst, int iAmt, void **pp);
  int (SQLITE_CALLBACK *xUnfetch)(sqlite3_file*, sqlite3_int64 iOfst, void *p);
  /* Methods above are valid for version 3 */
  /* Additional methods may be added in future releases */
};

/*
** CAPI3REF: Standard File Control Opcodes
** KEYWORDS: {file control opcodes} {file control opcode}
................................................................................
**
** <li>[[SQLITE_FCNTL_BUSYHANDLER]]
** ^The [SQLITE_FCNTL_BUSYHANDLER]
** file-control may be invoked by SQLite on the database file handle
** shortly after it is opened in order to provide a custom VFS with access
** to the connections busy-handler callback. The argument is of type (void **)
** - an array of two (void *) values. The first (void *) actually points
** to a function of type (int (SQLITE_CALLBACK *)(void *)). In order to invoke the connections
** busy-handler, this function should be invoked with the second (void *) in
** the array as the only argument. If it returns non-zero, then the operation
** should be retried. If it returns zero, the custom VFS should abandon the
** current operation.
**
** <li>[[SQLITE_FCNTL_TEMPFILENAME]]
** ^Application can invoke the [SQLITE_FCNTL_TEMPFILENAME] file-control
................................................................................
** varies from one VFS to another, and from one version of the same VFS to the
** next.  Applications that use these interfaces must be prepared for any
** or all of these interfaces to be NULL or for their behavior to change
** from one release to the next.  Applications must not attempt to access
** any of these methods if the iVersion of the VFS is less than 3.
*/
typedef struct sqlite3_vfs sqlite3_vfs;
typedef void (SQLITE_SYSAPI *sqlite3_syscall_ptr)(void);
struct sqlite3_vfs {
  int iVersion;            /* Structure version number (currently 3) */
  int szOsFile;            /* Size of subclassed sqlite3_file */
  int mxPathname;          /* Maximum file pathname length */
  sqlite3_vfs *pNext;      /* Next registered VFS */
  const char *zName;       /* Name of this virtual file system */
  void *pAppData;          /* Pointer to application-specific data */
  int (SQLITE_CALLBACK *xOpen)(sqlite3_vfs*, const char *zName, sqlite3_file*,
               int flags, int *pOutFlags);
  int (SQLITE_CALLBACK *xDelete)(sqlite3_vfs*, const char *zName, int syncDir);
  int (SQLITE_CALLBACK *xAccess)(sqlite3_vfs*, const char *zName, int flags, int *pResOut);
  int (SQLITE_CALLBACK *xFullPathname)(sqlite3_vfs*, const char *zName, int nOut, char *zOut);
  void *(SQLITE_CALLBACK *xDlOpen)(sqlite3_vfs*, const char *zFilename);
  void (SQLITE_CALLBACK *xDlError)(sqlite3_vfs*, int nByte, char *zErrMsg);
  void (SQLITE_CALLBACK *(*xDlSym)(sqlite3_vfs*,void*, const char *zSymbol))(void);
  void (SQLITE_CALLBACK *xDlClose)(sqlite3_vfs*, void*);
  int (SQLITE_CALLBACK *xRandomness)(sqlite3_vfs*, int nByte, char *zOut);
  int (SQLITE_CALLBACK *xSleep)(sqlite3_vfs*, int microseconds);
  int (SQLITE_CALLBACK *xCurrentTime)(sqlite3_vfs*, double*);
  int (SQLITE_CALLBACK *xGetLastError)(sqlite3_vfs*, int, char *);
  /*
  ** The methods above are in version 1 of the sqlite_vfs object
  ** definition.  Those that follow are added in version 2 or later
  */
  int (SQLITE_CALLBACK *xCurrentTimeInt64)(sqlite3_vfs*, sqlite3_int64*);
  /*
  ** The methods above are in versions 1 and 2 of the sqlite_vfs object.
  ** Those below are for version 3 and greater.
  */
  int (SQLITE_CALLBACK *xSetSystemCall)(sqlite3_vfs*, const char *zName, sqlite3_syscall_ptr);
  sqlite3_syscall_ptr (SQLITE_CALLBACK *xGetSystemCall)(sqlite3_vfs*, const char *zName);
  const char *(SQLITE_CALLBACK *xNextSystemCall)(sqlite3_vfs*, const char *zName);
  /*
  ** The methods above are in versions 1 through 3 of the sqlite_vfs object.
  ** New fields may be appended in future versions.  The iVersion
  ** value will increment whenever this happens. 
  */
};

................................................................................
** (using the [SQLITE_OS_OTHER=1] compile-time
** option) the application must supply a suitable implementation for
** sqlite3_os_init() and sqlite3_os_end().  An application-supplied
** implementation of sqlite3_os_init() or sqlite3_os_end()
** must return [SQLITE_OK] on success and some other [error code] upon
** failure.
*/
SQLITE_API int SQLITE_APICALL sqlite3_initialize(void);
SQLITE_API int SQLITE_APICALL sqlite3_shutdown(void);
SQLITE_API int SQLITE_APICALL sqlite3_os_init(void);
SQLITE_API int SQLITE_APICALL sqlite3_os_end(void);

/*
** CAPI3REF: Configuring The SQLite Library
**
** The sqlite3_config() interface is used to make global configuration
** changes to SQLite in order to tune SQLite to the specific needs of
** the application.  The default configuration is recommended for most
................................................................................
** vary depending on the [configuration option]
** in the first argument.
**
** ^When a configuration option is set, sqlite3_config() returns [SQLITE_OK].
** ^If the option is unknown or SQLite is unable to set the option
** then this routine returns a non-zero [error code].
*/
SQLITE_API int SQLITE_CDECL sqlite3_config(int, ...);

/*
** CAPI3REF: Configure database connections
** METHOD: sqlite3
**
** The sqlite3_db_config() interface is used to make configuration
** changes to a [database connection].  The interface is similar to
................................................................................
** [SQLITE_DBCONFIG_LOOKASIDE | configuration verb] - an integer code 
** that indicates what aspect of the [database connection] is being configured.
** Subsequent arguments vary depending on the configuration verb.
**
** ^Calls to sqlite3_db_config() return SQLITE_OK if and only if
** the call is considered successful.
*/
SQLITE_API int SQLITE_CDECL sqlite3_db_config(sqlite3*, int op, ...);

/*
** CAPI3REF: Memory Allocation Routines
**
** An instance of this object defines the interface between SQLite
** and low-level memory allocation routines.
**
................................................................................
** serialization.
**
** SQLite will never invoke xInit() more than once without an intervening
** call to xShutdown().
*/
typedef struct sqlite3_mem_methods sqlite3_mem_methods;
struct sqlite3_mem_methods {
  void *(SQLITE_CALLBACK *xMalloc)(int);         /* Memory allocation function */
  void (SQLITE_CALLBACK *xFree)(void*);          /* Free a prior allocation */
  void *(SQLITE_CALLBACK *xRealloc)(void*,int);  /* Resize an allocation */
  int (SQLITE_CALLBACK *xSize)(void*);           /* Return the size of an allocation */
  int (SQLITE_CALLBACK *xRoundup)(int);          /* Round up request size to allocation size */
  int (SQLITE_CALLBACK *xInit)(void*);           /* Initialize the memory allocator */
  void (SQLITE_CALLBACK *xShutdown)(void*);      /* Deinitialize the memory allocator */
  void *pAppData;                /* Argument to xInit() and xShutdown() */
};

/*
** CAPI3REF: Configuration Options
** KEYWORDS: {configuration option}
**
................................................................................
** is a pointer to an [sqlite3_pcache_methods2] object.  SQLite copies of
** the current page cache implementation into that object.)^ </dd>
**
** [[SQLITE_CONFIG_LOG]] <dt>SQLITE_CONFIG_LOG</dt>
** <dd> The SQLITE_CONFIG_LOG option is used to configure the SQLite
** global [error log].
** (^The SQLITE_CONFIG_LOG option takes two arguments: a pointer to a
** function with a call signature of void(SQLITE_CALLBACK *)(void*,int,const char*), 
** and a pointer to void. ^If the function pointer is not NULL, it is
** invoked by [sqlite3_log()] to process each logging event.  ^If the
** function pointer is NULL, the [sqlite3_log()] interface becomes a no-op.
** ^The void pointer that is the second argument to SQLITE_CONFIG_LOG is
** passed through as the first parameter to the application-defined logger
** function whenever that function is invoked.  ^The second parameter to
** the logger function is a copy of the first parameter to the corresponding
................................................................................
** They are retained for backwards compatibility but are now no-ops.
** </dd>
**
** [[SQLITE_CONFIG_SQLLOG]]
** <dt>SQLITE_CONFIG_SQLLOG
** <dd>This option is only available if sqlite is compiled with the
** [SQLITE_ENABLE_SQLLOG] pre-processor macro defined. The first argument should
** be a pointer to a function of type void(SQLITE_CALLBACK *)(void*,sqlite3*,const char*, int).
** The second should be of type (void*). The callback is invoked by the library
** in three separate circumstances, identified by the value passed as the
** fourth parameter. If the fourth parameter is 0, then the database connection
** passed as the second argument has just been opened. The third argument
** points to a buffer containing the name of the main database file. If the
** fourth parameter is 1, then the SQL statement that the third parameter
** points to has just been executed. Or, if the fourth parameter is 2, then
................................................................................
** <dt>SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION</dt>
** <dd> ^This option is used to enable or disable the [sqlite3_load_extension()]
** interface independently of the [load_extension()] SQL function.
** The [sqlite3_enable_load_extension()] API enables or disables both the
** C-API [sqlite3_load_extension()] and the SQL function [load_extension()].
** There should be two additional arguments.
** When the first argument to this interface is 1, then only the C-API is
** enabled and the SQL function remains disabled.  If the first argment to
** this interface is 0, then both the C-API and the SQL function are disabled.
** If the first argument is -1, then no changes are made to state of either the
** C-API or the SQL function.
** The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether [sqlite3_load_extension()] interface
** is disabled or enabled following this call.  The second parameter may
** be a NULL pointer, in which case the new setting is not reported back.
** </dd>
**









** </dl>
*/

#define SQLITE_DBCONFIG_LOOKASIDE             1001 /* void* int int */
#define SQLITE_DBCONFIG_ENABLE_FKEY           1002 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_TRIGGER        1003 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 1004 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION 1005 /* int int* */


................................................................................
** CAPI3REF: Enable Or Disable Extended Result Codes
** METHOD: sqlite3
**
** ^The sqlite3_extended_result_codes() routine enables or disables the
** [extended result codes] feature of SQLite. ^The extended result
** codes are disabled by default for historical compatibility.
*/
SQLITE_API int SQLITE_APICALL sqlite3_extended_result_codes(sqlite3*, int onoff);

/*
** CAPI3REF: Last Insert Rowid
** METHOD: sqlite3
**
** ^Each entry in most SQLite tables (except for [WITHOUT ROWID] tables)
** has a unique 64-bit signed
................................................................................
** If a separate thread performs a new [INSERT] on the same
** database connection while the [sqlite3_last_insert_rowid()]
** function is running and thus changes the last insert [rowid],
** then the value returned by [sqlite3_last_insert_rowid()] is
** unpredictable and might not equal either the old or the new
** last insert [rowid].
*/
SQLITE_API sqlite3_int64 SQLITE_APICALL sqlite3_last_insert_rowid(sqlite3*);

/*
** CAPI3REF: Count The Number Of Rows Modified
** METHOD: sqlite3
**
** ^This function returns the number of rows modified, inserted or
** deleted by the most recently completed INSERT, UPDATE or DELETE
................................................................................
** See also the [sqlite3_total_changes()] interface, the
** [count_changes pragma], and the [changes() SQL function].
**
** If a separate thread makes changes on the same database connection
** while [sqlite3_changes()] is running then the value returned
** is unpredictable and not meaningful.
*/
SQLITE_API int SQLITE_APICALL sqlite3_changes(sqlite3*);

/*
** CAPI3REF: Total Number Of Rows Modified
** METHOD: sqlite3
**
** ^This function returns the total number of rows inserted, modified or
** deleted by all [INSERT], [UPDATE] or [DELETE] statements completed
................................................................................
** See also the [sqlite3_changes()] interface, the
** [count_changes pragma], and the [total_changes() SQL function].
**
** If a separate thread makes changes on the same database connection
** while [sqlite3_total_changes()] is running then the value
** returned is unpredictable and not meaningful.
*/
SQLITE_API int SQLITE_APICALL sqlite3_total_changes(sqlite3*);

/*
** CAPI3REF: Interrupt A Long-Running Query
** METHOD: sqlite3
**
** ^This function causes any pending database operation to abort and
** return at its earliest opportunity. This routine is typically
................................................................................
** ^A call to sqlite3_interrupt(D) that occurs when there are no running
** SQL statements is a no-op and has no effect on SQL statements
** that are started after the sqlite3_interrupt() call returns.
**
** If the database connection closes while [sqlite3_interrupt()]
** is running then bad things will likely happen.
*/
SQLITE_API void SQLITE_APICALL sqlite3_interrupt(sqlite3*);

/*
** CAPI3REF: Determine If An SQL Statement Is Complete
**
** These routines are useful during command-line input to determine if the
** currently entered text seems to form a complete SQL statement or
** if additional input is needed before sending the text into
................................................................................
**
** The input to [sqlite3_complete()] must be a zero-terminated
** UTF-8 string.
**
** The input to [sqlite3_complete16()] must be a zero-terminated
** UTF-16 string in native byte order.
*/
SQLITE_API int SQLITE_APICALL sqlite3_complete(const char *sql);
SQLITE_API int SQLITE_APICALL sqlite3_complete16(const void *sql);

/*
** CAPI3REF: Register A Callback To Handle SQLITE_BUSY Errors
** KEYWORDS: {busy-handler callback} {busy handler}
** METHOD: sqlite3
**
** ^The sqlite3_busy_handler(D,X,P) routine sets a callback function X
................................................................................
** database connection that invoked the busy handler.  In other words,
** the busy handler is not reentrant.  Any such actions
** result in undefined behavior.
** 
** A busy handler must not close the database connection
** or [prepared statement] that invoked the busy handler.
*/
SQLITE_API int SQLITE_APICALL sqlite3_busy_handler(sqlite3*,int(SQLITE_CALLBACK *)(void*,int),void*);

/*
** CAPI3REF: Set A Busy Timeout
** METHOD: sqlite3
**
** ^This routine sets a [sqlite3_busy_handler | busy handler] that sleeps
** for a specified amount of time when a table is locked.  ^The handler
................................................................................
** ^(There can only be a single busy handler for a particular
** [database connection] at any given moment.  If another busy handler
** was defined  (using [sqlite3_busy_handler()]) prior to calling
** this routine, that other busy handler is cleared.)^
**
** See also:  [PRAGMA busy_timeout]
*/
SQLITE_API int SQLITE_APICALL sqlite3_busy_timeout(sqlite3*, int ms);

/*
** CAPI3REF: Convenience Routines For Running Queries
** METHOD: sqlite3
**
** This is a legacy interface that is preserved for backwards compatibility.
** Use of this interface is not recommended.
................................................................................
** [sqlite3_exec()].  The sqlite3_get_table() routine does not have access
** to any internal data structures of SQLite.  It uses only the public
** interface defined here.  As a consequence, errors that occur in the
** wrapper layer outside of the internal [sqlite3_exec()] call are not
** reflected in subsequent calls to [sqlite3_errcode()] or
** [sqlite3_errmsg()].
*/
SQLITE_API int SQLITE_APICALL sqlite3_get_table(
  sqlite3 *db,          /* An open database */
  const char *zSql,     /* SQL to be evaluated */
  char ***pazResult,    /* Results of the query */
  int *pnRow,           /* Number of result rows written here */
  int *pnColumn,        /* Number of result columns written here */
  char **pzErrmsg       /* Error msg written here */
);
SQLITE_API void SQLITE_APICALL sqlite3_free_table(char **result);

/*
** CAPI3REF: Formatted String Printing Functions
**
** These routines are work-alikes of the "printf()" family of functions
** from the standard C library.
** These routines understand most of the common K&R formatting options,
................................................................................
** character.)^  The "%w" formatting option is intended for safely inserting
** table and column names into a constructed SQL statement.
**
** ^(The "%z" formatting option works like "%s" but with the
** addition that after the string has been read and copied into
** the result, [sqlite3_free()] is called on the input string.)^
*/
SQLITE_API char *SQLITE_CDECL sqlite3_mprintf(const char*,...);
SQLITE_API char *SQLITE_APICALL sqlite3_vmprintf(const char*, va_list);
SQLITE_API char *SQLITE_CDECL sqlite3_snprintf(int,char*,const char*, ...);
SQLITE_API char *SQLITE_APICALL sqlite3_vsnprintf(int,char*,const char*, va_list);

/*
** CAPI3REF: Memory Allocation Subsystem
**
** The SQLite core uses these three routines for all of its own
** internal memory allocation needs. "Core" in the previous sentence
** does not include operating-system specific VFS implementation.  The
................................................................................
** invocation of [sqlite3_malloc()] or [sqlite3_realloc()] that have
** not yet been released.
**
** The application must not read or write any part of
** a block of memory after it has been released using
** [sqlite3_free()] or [sqlite3_realloc()].
*/
SQLITE_API void *SQLITE_APICALL sqlite3_malloc(int);
SQLITE_API void *SQLITE_APICALL sqlite3_malloc64(sqlite3_uint64);
SQLITE_API void *SQLITE_APICALL sqlite3_realloc(void*, int);
SQLITE_API void *SQLITE_APICALL sqlite3_realloc64(void*, sqlite3_uint64);
SQLITE_API void SQLITE_APICALL sqlite3_free(void*);
SQLITE_API sqlite3_uint64 SQLITE_APICALL sqlite3_msize(void*);

/*
** CAPI3REF: Memory Allocator Statistics
**
** SQLite provides these two interfaces for reporting on the status
** of the [sqlite3_malloc()], [sqlite3_free()], and [sqlite3_realloc()]
** routines, which form the built-in memory allocation subsystem.
................................................................................
**
** ^The memory high-water mark is reset to the current value of
** [sqlite3_memory_used()] if and only if the parameter to
** [sqlite3_memory_highwater()] is true.  ^The value returned
** by [sqlite3_memory_highwater(1)] is the high-water mark
** prior to the reset.
*/
SQLITE_API sqlite3_int64 SQLITE_APICALL sqlite3_memory_used(void);
SQLITE_API sqlite3_int64 SQLITE_APICALL sqlite3_memory_highwater(int resetFlag);

/*
** CAPI3REF: Pseudo-Random Number Generator
**
** SQLite contains a high-quality pseudo-random number generator (PRNG) used to
** select random [ROWID | ROWIDs] when inserting new records into a table that
** already uses the largest possible [ROWID].  The PRNG is also used for
................................................................................
** seeded using randomness obtained from the xRandomness method of
** the default [sqlite3_vfs] object.
** ^If the previous call to this routine had an N of 1 or more and a
** non-NULL P then the pseudo-randomness is generated
** internally and without recourse to the [sqlite3_vfs] xRandomness
** method.
*/
SQLITE_API void SQLITE_APICALL sqlite3_randomness(int N, void *P);

/*
** CAPI3REF: Compile-Time Authorization Callbacks
** METHOD: sqlite3
**
** ^This routine registers an authorizer callback with a particular
** [database connection], supplied in the first argument.
................................................................................
**
** ^Note that the authorizer callback is invoked only during
** [sqlite3_prepare()] or its variants.  Authorization is not
** performed during statement evaluation in [sqlite3_step()], unless
** as stated in the previous paragraph, sqlite3_step() invokes
** sqlite3_prepare_v2() to reprepare a statement after a schema change.
*/
SQLITE_API int SQLITE_APICALL sqlite3_set_authorizer(
  sqlite3*,
  int (SQLITE_CALLBACK *xAuth)(void*,int,const char*,const char*,const char*,const char*),
  void *pUserData
);

/*
** CAPI3REF: Authorizer Return Codes
**
** The [sqlite3_set_authorizer | authorizer callback function] must
................................................................................
** time is in units of nanoseconds, however the current implementation
** is only capable of millisecond resolution so the six least significant
** digits in the time are meaningless.  Future versions of SQLite
** might provide greater resolution on the profiler callback.  The
** sqlite3_profile() function is considered experimental and is
** subject to change in future versions of SQLite.
*/
SQLITE_API SQLITE_DEPRECATED void *SQLITE_APICALL sqlite3_trace(sqlite3*,
   void(SQLITE_CALLBACK *xTrace)(void*,const char*), void*);
SQLITE_API SQLITE_DEPRECATED void *SQLITE_APICALL sqlite3_profile(sqlite3*,
   void(SQLITE_CALLBACK *xProfile)(void*,const char*,sqlite3_uint64), void*);

/*
** CAPI3REF: SQL Trace Event Codes
** KEYWORDS: SQLITE_TRACE
**
** These constants identify classes of events that can be monitored
** using the [sqlite3_trace_v2()] tracing logic.  The third argument
................................................................................
** ^The C argument is a copy of the context pointer.
** The P and X arguments are pointers whose meanings depend on T.
**
** The sqlite3_trace_v2() interface is intended to replace the legacy
** interfaces [sqlite3_trace()] and [sqlite3_profile()], both of which
** are deprecated.
*/
SQLITE_API int SQLITE_APICALL sqlite3_trace_v2(
  sqlite3*,
  unsigned uMask,
  int(SQLITE_CALLBACK *xCallback)(unsigned,void*,void*,void*),
  void *pCtx
);

/*
** CAPI3REF: Query Progress Callbacks
** METHOD: sqlite3
**
................................................................................
**
** The progress handler callback must not do anything that will modify
** the database connection that invoked the progress handler.
** Note that [sqlite3_prepare_v2()] and [sqlite3_step()] both modify their
** database connections for the meaning of "modify" in this paragraph.
**
*/
SQLITE_API void SQLITE_APICALL sqlite3_progress_handler(sqlite3*, int, int(SQLITE_CALLBACK *)(void*), void*);

/*
** CAPI3REF: Opening A New Database Connection
** CONSTRUCTOR: sqlite3
**
** ^These routines open an SQLite database file as specified by the 
** filename argument. ^The filename argument is interpreted as UTF-8 for
................................................................................
**
** <b>Note to Windows Runtime users:</b>  The temporary directory must be set
** prior to calling sqlite3_open() or sqlite3_open_v2().  Otherwise, various
** features that require the use of temporary files may fail.
**
** See also: [sqlite3_temp_directory]
*/
SQLITE_API int SQLITE_APICALL sqlite3_open(
  const char *filename,   /* Database filename (UTF-8) */
  sqlite3 **ppDb          /* OUT: SQLite db handle */
);
SQLITE_API int SQLITE_APICALL sqlite3_open16(
  const void *filename,   /* Database filename (UTF-16) */
  sqlite3 **ppDb          /* OUT: SQLite db handle */
);
SQLITE_API int SQLITE_APICALL sqlite3_open_v2(
  const char *filename,   /* Database filename (UTF-8) */
  sqlite3 **ppDb,         /* OUT: SQLite db handle */
  int flags,              /* Flags */
  const char *zVfs        /* Name of VFS module to use */
);

/*
................................................................................
** 
** If F is a NULL pointer, then sqlite3_uri_parameter(F,P) returns NULL and
** sqlite3_uri_boolean(F,P,B) returns B.  If F is not a NULL pointer and
** is not a database file pathname pointer that SQLite passed into the xOpen
** VFS method, then the behavior of this routine is undefined and probably
** undesirable.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_uri_parameter(const char *zFilename, const char *zParam);
SQLITE_API int SQLITE_APICALL sqlite3_uri_boolean(const char *zFile, const char *zParam, int bDefault);
SQLITE_API sqlite3_int64 SQLITE_APICALL sqlite3_uri_int64(const char*, const char*, sqlite3_int64);


/*
** CAPI3REF: Error Codes And Messages
** METHOD: sqlite3
**
** ^If the most recent sqlite3_* API call associated with 
................................................................................
** to use D and invoking [sqlite3_mutex_leave]([sqlite3_db_mutex](D)) after
** all calls to the interfaces listed here are completed.
**
** If an interface fails with SQLITE_MISUSE, that means the interface
** was invoked incorrectly by the application.  In that case, the
** error code and message may or may not be set.
*/
SQLITE_API int SQLITE_APICALL sqlite3_errcode(sqlite3 *db);
SQLITE_API int SQLITE_APICALL sqlite3_extended_errcode(sqlite3 *db);
SQLITE_API const char *SQLITE_APICALL sqlite3_errmsg(sqlite3*);
SQLITE_API const void *SQLITE_APICALL sqlite3_errmsg16(sqlite3*);
SQLITE_API const char *SQLITE_APICALL sqlite3_errstr(int);

/*
** CAPI3REF: Prepared Statement Object
** KEYWORDS: {prepared statement} {prepared statements}
**
** An instance of this object represents a single SQL statement that
** has been compiled into binary form and is ready to be evaluated.
................................................................................
** attack.  Developers might also want to use the [sqlite3_set_authorizer()]
** interface to further control untrusted SQL.  The size of the database
** created by an untrusted script can be contained using the
** [max_page_count] [PRAGMA].
**
** New run-time limit categories may be added in future releases.
*/
SQLITE_API int SQLITE_APICALL sqlite3_limit(sqlite3*, int id, int newVal);

/*
** CAPI3REF: Run-Time Limit Categories
** KEYWORDS: {limit category} {*limit categories}
**
** These constants define various performance limits
** that can be lowered at run-time using [sqlite3_limit()].
................................................................................
** ^The specific value of WHERE-clause [parameter] might influence the 
** choice of query plan if the parameter is the left-hand side of a [LIKE]
** or [GLOB] operator or if the parameter is compared to an indexed column
** and the [SQLITE_ENABLE_STAT3] compile-time option is enabled.
** </li>
** </ol>
*/
SQLITE_API int SQLITE_APICALL sqlite3_prepare(
  sqlite3 *db,            /* Database handle */
  const char *zSql,       /* SQL statement, UTF-8 encoded */
  int nByte,              /* Maximum length of zSql in bytes. */
  sqlite3_stmt **ppStmt,  /* OUT: Statement handle */
  const char **pzTail     /* OUT: Pointer to unused portion of zSql */
);
SQLITE_API int SQLITE_APICALL sqlite3_prepare_v2(
  sqlite3 *db,            /* Database handle */
  const char *zSql,       /* SQL statement, UTF-8 encoded */
  int nByte,              /* Maximum length of zSql in bytes. */
  sqlite3_stmt **ppStmt,  /* OUT: Statement handle */
  const char **pzTail     /* OUT: Pointer to unused portion of zSql */
);
SQLITE_API int SQLITE_APICALL sqlite3_prepare16(
  sqlite3 *db,            /* Database handle */
  const void *zSql,       /* SQL statement, UTF-16 encoded */
  int nByte,              /* Maximum length of zSql in bytes. */
  sqlite3_stmt **ppStmt,  /* OUT: Statement handle */
  const void **pzTail     /* OUT: Pointer to unused portion of zSql */
);
SQLITE_API int SQLITE_APICALL sqlite3_prepare16_v2(
  sqlite3 *db,            /* Database handle */
  const void *zSql,       /* SQL statement, UTF-16 encoded */
  int nByte,              /* Maximum length of zSql in bytes. */
  sqlite3_stmt **ppStmt,  /* OUT: Statement handle */
  const void **pzTail     /* OUT: Pointer to unused portion of zSql */
);

................................................................................
**
** ^The string returned by sqlite3_sql(P) is managed by SQLite and is
** automatically freed when the prepared statement is finalized.
** ^The string returned by sqlite3_expanded_sql(P), on the other hand,
** is obtained from [sqlite3_malloc()] and must be free by the application
** by passing it to [sqlite3_free()].
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_sql(sqlite3_stmt *pStmt);
SQLITE_API char *SQLITE_APICALL sqlite3_expanded_sql(sqlite3_stmt *pStmt);

/*
** CAPI3REF: Determine If An SQL Statement Writes The Database
** METHOD: sqlite3_stmt
**
** ^The sqlite3_stmt_readonly(X) interface returns true (non-zero) if
** and only if the [prepared statement] X makes no direct changes to
................................................................................
** since the statements themselves do not actually modify the database but
** rather they control the timing of when other statements modify the 
** database.  ^The [ATTACH] and [DETACH] statements also cause
** sqlite3_stmt_readonly() to return true since, while those statements
** change the configuration of a database connection, they do not make 
** changes to the content of the database files on disk.
*/
SQLITE_API int SQLITE_APICALL sqlite3_stmt_readonly(sqlite3_stmt *pStmt);

/*
** CAPI3REF: Determine If A Prepared Statement Has Been Reset
** METHOD: sqlite3_stmt
**
** ^The sqlite3_stmt_busy(S) interface returns true (non-zero) if the
** [prepared statement] S has been stepped at least once using 
................................................................................
**
** This interface can be used in combination [sqlite3_next_stmt()]
** to locate all prepared statements associated with a database 
** connection that are in need of being reset.  This can be used,
** for example, in diagnostic routines to search for prepared 
** statements that are holding a transaction open.
*/
SQLITE_API int SQLITE_APICALL sqlite3_stmt_busy(sqlite3_stmt*);

/*
** CAPI3REF: Dynamically Typed Value Object
** KEYWORDS: {protected sqlite3_value} {unprotected sqlite3_value}
**
** SQLite uses the sqlite3_value object to represent all values
** that can be stored in a database table. SQLite uses dynamic typing
................................................................................
** [SQLITE_MAX_LENGTH].
** ^[SQLITE_RANGE] is returned if the parameter
** index is out of range.  ^[SQLITE_NOMEM] is returned if malloc() fails.
**
** See also: [sqlite3_bind_parameter_count()],
** [sqlite3_bind_parameter_name()], and [sqlite3_bind_parameter_index()].
*/
SQLITE_API int SQLITE_APICALL sqlite3_bind_blob(sqlite3_stmt*, int, const void*, int n, void(SQLITE_CALLBACK *)(void*));
SQLITE_API int SQLITE_APICALL sqlite3_bind_blob64(sqlite3_stmt*, int, const void*, sqlite3_uint64,
                        void(SQLITE_CALLBACK *)(void*));
SQLITE_API int SQLITE_APICALL sqlite3_bind_double(sqlite3_stmt*, int, double);
SQLITE_API int SQLITE_APICALL sqlite3_bind_int(sqlite3_stmt*, int, int);
SQLITE_API int SQLITE_APICALL sqlite3_bind_int64(sqlite3_stmt*, int, sqlite3_int64);
SQLITE_API int SQLITE_APICALL sqlite3_bind_null(sqlite3_stmt*, int);
SQLITE_API int SQLITE_APICALL sqlite3_bind_text(sqlite3_stmt*,int,const char*,int,void(SQLITE_CALLBACK *)(void*));
SQLITE_API int SQLITE_APICALL sqlite3_bind_text16(sqlite3_stmt*, int, const void*, int, void(SQLITE_CALLBACK *)(void*));
SQLITE_API int SQLITE_APICALL sqlite3_bind_text64(sqlite3_stmt*, int, const char*, sqlite3_uint64,
                         void(SQLITE_CALLBACK *)(void*), unsigned char encoding);
SQLITE_API int SQLITE_APICALL sqlite3_bind_value(sqlite3_stmt*, int, const sqlite3_value*);
SQLITE_API int SQLITE_APICALL sqlite3_bind_zeroblob(sqlite3_stmt*, int, int n);
SQLITE_API int SQLITE_APICALL sqlite3_bind_zeroblob64(sqlite3_stmt*, int, sqlite3_uint64);

/*
** CAPI3REF: Number Of SQL Parameters
** METHOD: sqlite3_stmt
**
** ^This routine can be used to find the number of [SQL parameters]
** in a [prepared statement].  SQL parameters are tokens of the
................................................................................
** number of unique parameters.  If parameters of the ?NNN form are used,
** there may be gaps in the list.)^
**
** See also: [sqlite3_bind_blob|sqlite3_bind()],
** [sqlite3_bind_parameter_name()], and
** [sqlite3_bind_parameter_index()].
*/
SQLITE_API int SQLITE_APICALL sqlite3_bind_parameter_count(sqlite3_stmt*);

/*
** CAPI3REF: Name Of A Host Parameter
** METHOD: sqlite3_stmt
**
** ^The sqlite3_bind_parameter_name(P,N) interface returns
** the name of the N-th [SQL parameter] in the [prepared statement] P.
................................................................................
** originally specified as UTF-16 in [sqlite3_prepare16()] or
** [sqlite3_prepare16_v2()].
**
** See also: [sqlite3_bind_blob|sqlite3_bind()],
** [sqlite3_bind_parameter_count()], and
** [sqlite3_bind_parameter_index()].
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_bind_parameter_name(sqlite3_stmt*, int);

/*
** CAPI3REF: Index Of A Parameter With A Given Name
** METHOD: sqlite3_stmt
**
** ^Return the index of an SQL parameter given its name.  ^The
** index value returned is suitable for use as the second
................................................................................
** name must be given in UTF-8 even if the original statement
** was prepared from UTF-16 text using [sqlite3_prepare16_v2()].
**
** See also: [sqlite3_bind_blob|sqlite3_bind()],
** [sqlite3_bind_parameter_count()], and
** [sqlite3_bind_parameter_name()].
*/
SQLITE_API int SQLITE_APICALL sqlite3_bind_parameter_index(sqlite3_stmt*, const char *zName);

/*
** CAPI3REF: Reset All Bindings On A Prepared Statement
** METHOD: sqlite3_stmt
**
** ^Contrary to the intuition of many, [sqlite3_reset()] does not reset
** the [sqlite3_bind_blob | bindings] on a [prepared statement].
** ^Use this routine to reset all host parameters to NULL.
*/
SQLITE_API int SQLITE_APICALL sqlite3_clear_bindings(sqlite3_stmt*);

/*
** CAPI3REF: Number Of Columns In A Result Set
** METHOD: sqlite3_stmt
**
** ^Return the number of columns in the result set returned by the
** [prepared statement]. ^This routine returns 0 if pStmt is an SQL
** statement that does not return data (for example an [UPDATE]).
**
** See also: [sqlite3_data_count()]
*/
SQLITE_API int SQLITE_APICALL sqlite3_column_count(sqlite3_stmt *pStmt);

/*
** CAPI3REF: Column Names In A Result Set
** METHOD: sqlite3_stmt
**
** ^These routines return the name assigned to a particular column
** in the result set of a [SELECT] statement.  ^The sqlite3_column_name()
................................................................................
** NULL pointer is returned.
**
** ^The name of a result column is the value of the "AS" clause for
** that column, if there is an AS clause.  If there is no AS clause
** then the name of the column is unspecified and may change from
** one release of SQLite to the next.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_column_name(sqlite3_stmt*, int N);
SQLITE_API const void *SQLITE_APICALL sqlite3_column_name16(sqlite3_stmt*, int N);

/*
** CAPI3REF: Source Of Data In A Query Result
** METHOD: sqlite3_stmt
**
** ^These routines provide a means to determine the database, table, and
** table column that is the origin of a particular result column in
................................................................................
** undefined.
**
** If two or more threads call one or more
** [sqlite3_column_database_name | column metadata interfaces]
** for the same [prepared statement] and result column
** at the same time then the results are undefined.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_column_database_name(sqlite3_stmt*,int);
SQLITE_API const void *SQLITE_APICALL sqlite3_column_database_name16(sqlite3_stmt*,int);
SQLITE_API const char *SQLITE_APICALL sqlite3_column_table_name(sqlite3_stmt*,int);
SQLITE_API const void *SQLITE_APICALL sqlite3_column_table_name16(sqlite3_stmt*,int);
SQLITE_API const char *SQLITE_APICALL sqlite3_column_origin_name(sqlite3_stmt*,int);
SQLITE_API const void *SQLITE_APICALL sqlite3_column_origin_name16(sqlite3_stmt*,int);

/*
** CAPI3REF: Declared Datatype Of A Query Result
** METHOD: sqlite3_stmt
**
** ^(The first parameter is a [prepared statement].
** If this statement is a [SELECT] statement and the Nth column of the
................................................................................
** ^SQLite uses dynamic run-time typing.  ^So just because a column
** is declared to contain a particular type does not mean that the
** data stored in that column is of the declared type.  SQLite is
** strongly typed, but the typing is dynamic not static.  ^Type
** is associated with individual values, not with the containers
** used to hold those values.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_column_decltype(sqlite3_stmt*,int);
SQLITE_API const void *SQLITE_APICALL sqlite3_column_decltype16(sqlite3_stmt*,int);

/*
** CAPI3REF: Evaluate An SQL Statement
** METHOD: sqlite3_stmt
**
** After a [prepared statement] has been prepared using either
** [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()] or one of the legacy
................................................................................
** more threads at the same moment in time.
**
** For all versions of SQLite up to and including 3.6.23.1, a call to
** [sqlite3_reset()] was required after sqlite3_step() returned anything
** other than [SQLITE_ROW] before any subsequent invocation of
** sqlite3_step().  Failure to reset the prepared statement using 
** [sqlite3_reset()] would result in an [SQLITE_MISUSE] return from

** sqlite3_step().  But after version 3.6.23.1, sqlite3_step() began
** calling [sqlite3_reset()] automatically in this circumstance rather
** than returning [SQLITE_MISUSE].  This is not considered a compatibility
** break because any application that ever receives an SQLITE_MISUSE error
** is broken by definition.  The [SQLITE_OMIT_AUTORESET] compile-time option
** can be used to restore the legacy behavior.
**
** <b>Goofy Interface Alert:</b> In the legacy interface, the sqlite3_step()
................................................................................
** We admit that this is a goofy design.  The problem has been fixed
** with the "v2" interface.  If you prepare all of your SQL statements
** using either [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()] instead
** of the legacy [sqlite3_prepare()] and [sqlite3_prepare16()] interfaces,
** then the more specific [error codes] are returned directly
** by sqlite3_step().  The use of the "v2" interface is recommended.
*/
SQLITE_API int SQLITE_APICALL sqlite3_step(sqlite3_stmt*);

/*
** CAPI3REF: Number of columns in a result set
** METHOD: sqlite3_stmt
**
** ^The sqlite3_data_count(P) interface returns the number of columns in the
** current row of the result set of [prepared statement] P.
................................................................................
** will return non-zero if previous call to [sqlite3_step](P) returned
** [SQLITE_ROW], except in the case of the [PRAGMA incremental_vacuum]
** where it always returns zero since each step of that multi-step
** pragma returns 0 columns of data.
**
** See also: [sqlite3_column_count()]
*/
SQLITE_API int SQLITE_APICALL sqlite3_data_count(sqlite3_stmt *pStmt);

/*
** CAPI3REF: Fundamental Datatypes
** KEYWORDS: SQLITE_TEXT
**
** ^(Every value in SQLite has one of five fundamental datatypes:
**
................................................................................
**
** ^(If a memory allocation error occurs during the evaluation of any
** of these routines, a default value is returned.  The default value
** is either the integer 0, the floating point number 0.0, or a NULL
** pointer.  Subsequent calls to [sqlite3_errcode()] will return
** [SQLITE_NOMEM].)^
*/
SQLITE_API const void *SQLITE_APICALL sqlite3_column_blob(sqlite3_stmt*, int iCol);
SQLITE_API int SQLITE_APICALL sqlite3_column_bytes(sqlite3_stmt*, int iCol);
SQLITE_API int SQLITE_APICALL sqlite3_column_bytes16(sqlite3_stmt*, int iCol);
SQLITE_API double SQLITE_APICALL sqlite3_column_double(sqlite3_stmt*, int iCol);
SQLITE_API int SQLITE_APICALL sqlite3_column_int(sqlite3_stmt*, int iCol);
SQLITE_API sqlite3_int64 SQLITE_APICALL sqlite3_column_int64(sqlite3_stmt*, int iCol);
SQLITE_API const unsigned char *SQLITE_APICALL sqlite3_column_text(sqlite3_stmt*, int iCol);
SQLITE_API const void *SQLITE_APICALL sqlite3_column_text16(sqlite3_stmt*, int iCol);
SQLITE_API int SQLITE_APICALL sqlite3_column_type(sqlite3_stmt*, int iCol);
SQLITE_API sqlite3_value *SQLITE_APICALL sqlite3_column_value(sqlite3_stmt*, int iCol);

/*
** CAPI3REF: Destroy A Prepared Statement Object
** DESTRUCTOR: sqlite3_stmt
**
** ^The sqlite3_finalize() function is called to delete a [prepared statement].
** ^If the most recent evaluation of the statement encountered no errors
................................................................................
**
** The application must finalize every [prepared statement] in order to avoid
** resource leaks.  It is a grievous error for the application to try to use
** a prepared statement after it has been finalized.  Any use of a prepared
** statement after it has been finalized can result in undefined and
** undesirable behavior such as segfaults and heap corruption.
*/
SQLITE_API int SQLITE_APICALL sqlite3_finalize(sqlite3_stmt *pStmt);

/*
** CAPI3REF: Reset A Prepared Statement Object
** METHOD: sqlite3_stmt
**
** The sqlite3_reset() function is called to reset a [prepared statement]
** object back to its initial state, ready to be re-executed.
................................................................................
** ^If the most recent call to [sqlite3_step(S)] for the
** [prepared statement] S indicated an error, then
** [sqlite3_reset(S)] returns an appropriate [error code].
**
** ^The [sqlite3_reset(S)] interface does not change the values
** of any [sqlite3_bind_blob|bindings] on the [prepared statement] S.
*/
SQLITE_API int SQLITE_APICALL sqlite3_reset(sqlite3_stmt *pStmt);

/*
** CAPI3REF: Create Or Redefine SQL Functions
** KEYWORDS: {function creation routines}
** KEYWORDS: {application-defined SQL function}
** KEYWORDS: {application-defined SQL functions}
** METHOD: sqlite3
................................................................................
** ^Built-in functions may be overloaded by new application-defined functions.
**
** ^An application-defined function is permitted to call other
** SQLite interfaces.  However, such calls must not
** close the database connection nor finalize or reset the prepared
** statement in which the function is running.
*/
SQLITE_API int SQLITE_APICALL sqlite3_create_function(
  sqlite3 *db,
  const char *zFunctionName,
  int nArg,
  int eTextRep,
  void *pApp,
  void (SQLITE_CALLBACK *xFunc)(sqlite3_context*,int,sqlite3_value**),
  void (SQLITE_CALLBACK *xStep)(sqlite3_context*,int,sqlite3_value**),
  void (SQLITE_CALLBACK *xFinal)(sqlite3_context*)
);
SQLITE_API int SQLITE_APICALL sqlite3_create_function16(
  sqlite3 *db,
  const void *zFunctionName,
  int nArg,
  int eTextRep,
  void *pApp,
  void (SQLITE_CALLBACK *xFunc)(sqlite3_context*,int,sqlite3_value**),
  void (SQLITE_CALLBACK *xStep)(sqlite3_context*,int,sqlite3_value**),
  void (SQLITE_CALLBACK *xFinal)(sqlite3_context*)
);
SQLITE_API int SQLITE_APICALL sqlite3_create_function_v2(
  sqlite3 *db,
  const char *zFunctionName,
  int nArg,
  int eTextRep,
  void *pApp,
  void (SQLITE_CALLBACK *xFunc)(sqlite3_context*,int,sqlite3_value**),
  void (SQLITE_CALLBACK *xStep)(sqlite3_context*,int,sqlite3_value**),
  void (SQLITE_CALLBACK *xFinal)(sqlite3_context*),
  void(SQLITE_CALLBACK *xDestroy)(void*)
);

/*
** CAPI3REF: Text Encodings
**
** These constant define integer codes that represent the various
** text encodings supported by SQLite.
................................................................................
** These functions are [deprecated].  In order to maintain
** backwards compatibility with older code, these functions continue 
** to be supported.  However, new applications should avoid
** the use of these functions.  To encourage programmers to avoid
** these functions, we will not explain what they do.
*/
#ifndef SQLITE_OMIT_DEPRECATED
SQLITE_API SQLITE_DEPRECATED int SQLITE_APICALL sqlite3_aggregate_count(sqlite3_context*);
SQLITE_API SQLITE_DEPRECATED int SQLITE_APICALL sqlite3_expired(sqlite3_stmt*);
SQLITE_API SQLITE_DEPRECATED int SQLITE_APICALL sqlite3_transfer_bindings(sqlite3_stmt*, sqlite3_stmt*);
SQLITE_API SQLITE_DEPRECATED int SQLITE_APICALL sqlite3_global_recover(void);
SQLITE_API SQLITE_DEPRECATED void SQLITE_APICALL sqlite3_thread_cleanup(void);
SQLITE_API SQLITE_DEPRECATED int SQLITE_APICALL sqlite3_memory_alarm(void(SQLITE_CALLBACK *)(void*,sqlite3_int64,int),
                      void*,sqlite3_int64);
#endif

/*
** CAPI3REF: Obtaining SQL Values
** METHOD: sqlite3_value
**
................................................................................
** [sqlite3_value_text16()] can be invalidated by a subsequent call to
** [sqlite3_value_bytes()], [sqlite3_value_bytes16()], [sqlite3_value_text()],
** or [sqlite3_value_text16()].
**
** These routines must be called from the same thread as
** the SQL function that supplied the [sqlite3_value*] parameters.
*/
SQLITE_API const void *SQLITE_APICALL sqlite3_value_blob(sqlite3_value*);
SQLITE_API int SQLITE_APICALL sqlite3_value_bytes(sqlite3_value*);
SQLITE_API int SQLITE_APICALL sqlite3_value_bytes16(sqlite3_value*);
SQLITE_API double SQLITE_APICALL sqlite3_value_double(sqlite3_value*);
SQLITE_API int SQLITE_APICALL sqlite3_value_int(sqlite3_value*);
SQLITE_API sqlite3_int64 SQLITE_APICALL sqlite3_value_int64(sqlite3_value*);
SQLITE_API const unsigned char *SQLITE_APICALL sqlite3_value_text(sqlite3_value*);
SQLITE_API const void *SQLITE_APICALL sqlite3_value_text16(sqlite3_value*);
SQLITE_API const void *SQLITE_APICALL sqlite3_value_text16le(sqlite3_value*);
SQLITE_API const void *SQLITE_APICALL sqlite3_value_text16be(sqlite3_value*);
SQLITE_API int SQLITE_APICALL sqlite3_value_type(sqlite3_value*);
SQLITE_API int SQLITE_APICALL sqlite3_value_numeric_type(sqlite3_value*);

/*
** CAPI3REF: Finding The Subtype Of SQL Values
** METHOD: sqlite3_value
**
** The sqlite3_value_subtype(V) function returns the subtype for
** an [application-defined SQL function] argument V.  The subtype
................................................................................
** one SQL function to another.  Use the [sqlite3_result_subtype()]
** routine to set the subtype for the return value of an SQL function.
**
** SQLite makes no use of subtype itself.  It merely passes the subtype
** from the result of one [application-defined SQL function] into the
** input of another.
*/
SQLITE_API unsigned int SQLITE_APICALL sqlite3_value_subtype(sqlite3_value*);

/*
** CAPI3REF: Copy And Free SQL Values
** METHOD: sqlite3_value
**
** ^The sqlite3_value_dup(V) interface makes a copy of the [sqlite3_value]
** object D and returns a pointer to that copy.  ^The [sqlite3_value] returned
................................................................................
** ^The sqlite3_value_dup(V) interface returns NULL if V is NULL or if a
** memory allocation fails.
**
** ^The sqlite3_value_free(V) interface frees an [sqlite3_value] object
** previously obtained from [sqlite3_value_dup()].  ^If V is a NULL pointer
** then sqlite3_value_free(V) is a harmless no-op.
*/
SQLITE_API sqlite3_value *SQLITE_APICALL sqlite3_value_dup(const sqlite3_value*);
SQLITE_API void SQLITE_APICALL sqlite3_value_free(sqlite3_value*);

/*
** CAPI3REF: Obtain Aggregate Function Context
** METHOD: sqlite3_context
**
** Implementations of aggregate SQL functions use this
** routine to allocate memory for storing their state.
................................................................................
** [sqlite3_context | SQL function context] that is the first parameter
** to the xStep or xFinal callback routine that implements the aggregate
** function.
**
** This routine must be called from the same thread in which
** the aggregate SQL function is running.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_aggregate_context(sqlite3_context*, int nBytes);

/*
** CAPI3REF: User Data For Functions
** METHOD: sqlite3_context
**
** ^The sqlite3_user_data() interface returns a copy of
** the pointer that was the pUserData parameter (the 5th parameter)
................................................................................
** of the [sqlite3_create_function()]
** and [sqlite3_create_function16()] routines that originally
** registered the application defined function.
**
** This routine must be called from the same thread in which
** the application-defined function is running.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_user_data(sqlite3_context*);

/*
** CAPI3REF: Database Connection For Functions
** METHOD: sqlite3_context
**
** ^The sqlite3_context_db_handle() interface returns a copy of
** the pointer to the [database connection] (the 1st parameter)
** of the [sqlite3_create_function()]
** and [sqlite3_create_function16()] routines that originally
** registered the application defined function.
*/
SQLITE_API sqlite3 *SQLITE_APICALL sqlite3_context_db_handle(sqlite3_context*);

/*
** CAPI3REF: Function Auxiliary Data
** METHOD: sqlite3_context
**
** These functions may be used by (non-aggregate) SQL functions to
** associate metadata with argument values. If the same value is passed to
................................................................................
** calls to sqlite3_get_auxdata(C,N) return P from the most recent
** sqlite3_set_auxdata(C,N,P,X) call if the metadata is still valid or
** NULL if the metadata has been discarded.
** ^After each call to sqlite3_set_auxdata(C,N,P,X) where X is not NULL,
** SQLite will invoke the destructor function X with parameter P exactly
** once, when the metadata is discarded.
** SQLite is free to discard the metadata at any time, including: <ul>
** <li> when the corresponding function parameter changes, or
** <li> when [sqlite3_reset()] or [sqlite3_finalize()] is called for the
**      SQL statement, or
** <li> when sqlite3_set_auxdata() is invoked again on the same parameter, or

** <li> during the original sqlite3_set_auxdata() call when a memory 
**      allocation error occurs. </ul>)^
**
** Note the last bullet in particular.  The destructor X in 
** sqlite3_set_auxdata(C,N,P,X) might be called immediately, before the
** sqlite3_set_auxdata() interface even returns.  Hence sqlite3_set_auxdata()
** should be called near the end of the function implementation and the
** function implementation should not make any use of P after
** sqlite3_set_auxdata() has been called.
................................................................................
** ^(In practice, metadata is preserved between function calls for
** function parameters that are compile-time constants, including literal
** values and [parameters] and expressions composed from the same.)^
**
** These routines must be called from the same thread in which
** the SQL function is running.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_get_auxdata(sqlite3_context*, int N);
SQLITE_API void SQLITE_APICALL sqlite3_set_auxdata(sqlite3_context*, int N, void*, void (SQLITE_CALLBACK *)(void*));


/*
** CAPI3REF: Constants Defining Special Destructor Behavior
**
** These are special values for the destructor that is passed in as the
** final argument to routines like [sqlite3_result_blob()].  ^If the destructor
................................................................................
** SQLITE_TRANSIENT value means that the content will likely change in
** the near future and that SQLite should make its own private copy of
** the content before returning.
**
** The typedef is necessary to work around problems in certain
** C++ compilers.
*/
typedef void (SQLITE_CALLBACK *sqlite3_destructor_type)(void*);
#define SQLITE_STATIC      ((sqlite3_destructor_type)0)
#define SQLITE_TRANSIENT   ((sqlite3_destructor_type)-1)

/*
** CAPI3REF: Setting The Result Of An SQL Function
** METHOD: sqlite3_context
**
................................................................................
** [unprotected sqlite3_value] object is required, so either
** kind of [sqlite3_value] object can be used with this interface.
**
** If these routines are called from within the different thread
** than the one containing the application-defined function that received
** the [sqlite3_context] pointer, the results are undefined.
*/
SQLITE_API void SQLITE_APICALL sqlite3_result_blob(sqlite3_context*, const void*, int, void(SQLITE_CALLBACK *)(void*));
SQLITE_API void SQLITE_APICALL sqlite3_result_blob64(sqlite3_context*,const void*,
                           sqlite3_uint64,void(SQLITE_CALLBACK *)(void*));
SQLITE_API void SQLITE_APICALL sqlite3_result_double(sqlite3_context*, double);
SQLITE_API void SQLITE_APICALL sqlite3_result_error(sqlite3_context*, const char*, int);
SQLITE_API void SQLITE_APICALL sqlite3_result_error16(sqlite3_context*, const void*, int);
SQLITE_API void SQLITE_APICALL sqlite3_result_error_toobig(sqlite3_context*);
SQLITE_API void SQLITE_APICALL sqlite3_result_error_nomem(sqlite3_context*);
SQLITE_API void SQLITE_APICALL sqlite3_result_error_code(sqlite3_context*, int);
SQLITE_API void SQLITE_APICALL sqlite3_result_int(sqlite3_context*, int);
SQLITE_API void SQLITE_APICALL sqlite3_result_int64(sqlite3_context*, sqlite3_int64);
SQLITE_API void SQLITE_APICALL sqlite3_result_null(sqlite3_context*);
SQLITE_API void SQLITE_APICALL sqlite3_result_text(sqlite3_context*, const char*, int, void(SQLITE_CALLBACK *)(void*));
SQLITE_API void SQLITE_APICALL sqlite3_result_text64(sqlite3_context*, const char*,sqlite3_uint64,
                           void(SQLITE_CALLBACK *)(void*), unsigned char encoding);
SQLITE_API void SQLITE_APICALL sqlite3_result_text16(sqlite3_context*, const void*, int, void(SQLITE_CALLBACK *)(void*));
SQLITE_API void SQLITE_APICALL sqlite3_result_text16le(sqlite3_context*, const void*, int,void(SQLITE_CALLBACK *)(void*));
SQLITE_API void SQLITE_APICALL sqlite3_result_text16be(sqlite3_context*, const void*, int,void(SQLITE_CALLBACK *)(void*));
SQLITE_API void SQLITE_APICALL sqlite3_result_value(sqlite3_context*, sqlite3_value*);
SQLITE_API void SQLITE_APICALL sqlite3_result_zeroblob(sqlite3_context*, int n);
SQLITE_API int SQLITE_APICALL sqlite3_result_zeroblob64(sqlite3_context*, sqlite3_uint64 n);


/*
** CAPI3REF: Setting The Subtype Of An SQL Function
** METHOD: sqlite3_context
**
** The sqlite3_result_subtype(C,T) function causes the subtype of
................................................................................
** the result from the [application-defined SQL function] with 
** [sqlite3_context] C to be the value T.  Only the lower 8 bits 
** of the subtype T are preserved in current versions of SQLite;
** higher order bits are discarded.
** The number of subtype bytes preserved by SQLite might increase
** in future releases of SQLite.
*/
SQLITE_API void SQLITE_APICALL sqlite3_result_subtype(sqlite3_context*,unsigned int);

/*
** CAPI3REF: Define New Collating Sequences
** METHOD: sqlite3
**
** ^These functions add, remove, or modify a [collation] associated
** with the [database connection] specified as the first argument.
................................................................................
** themselves rather than expecting SQLite to deal with it for them.
** This is different from every other SQLite interface.  The inconsistency 
** is unfortunate but cannot be changed without breaking backwards 
** compatibility.
**
** See also:  [sqlite3_collation_needed()] and [sqlite3_collation_needed16()].
*/
SQLITE_API int SQLITE_APICALL sqlite3_create_collation(
  sqlite3*, 
  const char *zName, 
  int eTextRep, 
  void *pArg,
  int(SQLITE_CALLBACK *xCompare)(void*,int,const void*,int,const void*)
);
SQLITE_API int SQLITE_APICALL sqlite3_create_collation_v2(
  sqlite3*, 
  const char *zName, 
  int eTextRep, 
  void *pArg,
  int(SQLITE_CALLBACK *xCompare)(void*,int,const void*,int,const void*),
  void(SQLITE_CALLBACK *xDestroy)(void*)
);
SQLITE_API int SQLITE_APICALL sqlite3_create_collation16(
  sqlite3*, 
  const void *zName,
  int eTextRep, 
  void *pArg,
  int(SQLITE_CALLBACK *xCompare)(void*,int,const void*,int,const void*)
);

/*
** CAPI3REF: Collation Needed Callbacks
** METHOD: sqlite3
**
** ^To avoid having to register all collation sequences before a database
................................................................................
** sequence function required.  The fourth parameter is the name of the
** required collation sequence.)^
**
** The callback function should register the desired collation using
** [sqlite3_create_collation()], [sqlite3_create_collation16()], or
** [sqlite3_create_collation_v2()].
*/
SQLITE_API int SQLITE_APICALL sqlite3_collation_needed(
  sqlite3*, 
  void*, 
  void(SQLITE_CALLBACK *)(void*,sqlite3*,int eTextRep,const char*)
);
SQLITE_API int SQLITE_APICALL sqlite3_collation_needed16(
  sqlite3*, 
  void*,
  void(SQLITE_CALLBACK *)(void*,sqlite3*,int eTextRep,const void*)
);

#ifdef SQLITE_HAS_CODEC
/*
** Specify the key for an encrypted database.  This routine should be
** called right after sqlite3_open().
**
** The code to implement this API is not available in the public release
** of SQLite.
*/
SQLITE_API int SQLITE_APICALL sqlite3_key(
  sqlite3 *db,                   /* Database to be rekeyed */
  const void *pKey, int nKey     /* The key */
);
SQLITE_API int SQLITE_APICALL sqlite3_key_v2(
  sqlite3 *db,                   /* Database to be rekeyed */
  const char *zDbName,           /* Name of the database */
  const void *pKey, int nKey     /* The key */
);

/*
** Change the key on an open database.  If the current database is not
** encrypted, this routine will encrypt it.  If pNew==0 or nNew==0, the
** database is decrypted.
**
** The code to implement this API is not available in the public release
** of SQLite.
*/
SQLITE_API int SQLITE_APICALL sqlite3_rekey(
  sqlite3 *db,                   /* Database to be rekeyed */
  const void *pKey, int nKey     /* The new key */
);
SQLITE_API int SQLITE_APICALL sqlite3_rekey_v2(
  sqlite3 *db,                   /* Database to be rekeyed */
  const char *zDbName,           /* Name of the database */
  const void *pKey, int nKey     /* The new key */
);

/*
** Specify the activation key for a SEE database.  Unless 
** activated, none of the SEE routines will work.
*/
SQLITE_API void SQLITE_APICALL sqlite3_activate_see(
  const char *zPassPhrase        /* Activation phrase */
);
#endif

#ifdef SQLITE_ENABLE_CEROD
/*
** Specify the activation key for a CEROD database.  Unless 
** activated, none of the CEROD routines will work.
*/
SQLITE_API void SQLITE_APICALL sqlite3_activate_cerod(
  const char *zPassPhrase        /* Activation phrase */
);
#endif

/*
** CAPI3REF: Suspend Execution For A Short Time
**
................................................................................
**
** ^SQLite implements this interface by calling the xSleep()
** method of the default [sqlite3_vfs] object.  If the xSleep() method
** of the default VFS is not implemented correctly, or not implemented at
** all, then the behavior of sqlite3_sleep() may deviate from the description
** in the previous paragraphs.
*/
SQLITE_API int SQLITE_APICALL sqlite3_sleep(int);

/*
** CAPI3REF: Name Of The Folder Holding Temporary Files
**
** ^(If this global variable is made to point to a string which is
** the name of a folder (a.k.a. directory), then all temporary files
** created by SQLite when using a built-in [sqlite3_vfs | VFS]
................................................................................
** find out whether SQLite automatically rolled back the transaction after
** an error is to use this function.
**
** If another thread changes the autocommit status of the database
** connection while this routine is running, then the return value
** is undefined.
*/
SQLITE_API int SQLITE_APICALL sqlite3_get_autocommit(sqlite3*);

/*
** CAPI3REF: Find The Database Handle Of A Prepared Statement
** METHOD: sqlite3_stmt
**
** ^The sqlite3_db_handle interface returns the [database connection] handle
** to which a [prepared statement] belongs.  ^The [database connection]
** returned by sqlite3_db_handle is the same [database connection]
** that was the first argument
** to the [sqlite3_prepare_v2()] call (or its variants) that was used to
** create the statement in the first place.
*/
SQLITE_API sqlite3 *SQLITE_APICALL sqlite3_db_handle(sqlite3_stmt*);

/*
** CAPI3REF: Return The Filename For A Database Connection
** METHOD: sqlite3
**
** ^The sqlite3_db_filename(D,N) interface returns a pointer to a filename
** associated with database N of connection D.  ^The main database file
................................................................................
** a NULL pointer is returned.
**
** ^The filename returned by this function is the output of the
** xFullPathname method of the [VFS].  ^In other words, the filename
** will be an absolute pathname, even if the filename used
** to open the database originally was a URI or relative pathname.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_db_filename(sqlite3 *db, const char *zDbName);

/*
** CAPI3REF: Determine if a database is read-only
** METHOD: sqlite3
**
** ^The sqlite3_db_readonly(D,N) interface returns 1 if the database N
** of connection D is read-only, 0 if it is read/write, or -1 if N is not
** the name of a database on connection D.
*/
SQLITE_API int SQLITE_APICALL sqlite3_db_readonly(sqlite3 *db, const char *zDbName);

/*
** CAPI3REF: Find the next prepared statement
** METHOD: sqlite3
**
** ^This interface returns a pointer to the next [prepared statement] after
** pStmt associated with the [database connection] pDb.  ^If pStmt is NULL
................................................................................
** associated with the database connection pDb.  ^If no prepared statement
** satisfies the conditions of this routine, it returns NULL.
**
** The [database connection] pointer D in a call to
** [sqlite3_next_stmt(D,S)] must refer to an open database
** connection and in particular must not be a NULL pointer.
*/
SQLITE_API sqlite3_stmt *SQLITE_APICALL sqlite3_next_stmt(sqlite3 *pDb, sqlite3_stmt *pStmt);

/*
** CAPI3REF: Commit And Rollback Notification Callbacks
** METHOD: sqlite3
**
** ^The sqlite3_commit_hook() interface registers a callback
** function to be invoked whenever a transaction is [COMMIT | committed].
................................................................................
** rolled back if an explicit "ROLLBACK" statement is executed, or
** an error or constraint causes an implicit rollback to occur.
** ^The rollback callback is not invoked if a transaction is
** automatically rolled back because the database connection is closed.
**
** See also the [sqlite3_update_hook()] interface.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_commit_hook(sqlite3*, int(SQLITE_CALLBACK *)(void*), void*);
SQLITE_API void *SQLITE_APICALL sqlite3_rollback_hook(sqlite3*, void(SQLITE_CALLBACK *)(void *), void*);

/*
** CAPI3REF: Data Change Notification Callbacks
** METHOD: sqlite3
**
** ^The sqlite3_update_hook() interface registers a callback function
** with the [database connection] identified by the first argument
................................................................................
** returns the P argument from the previous call
** on the same [database connection] D, or NULL for
** the first call on D.
**
** See also the [sqlite3_commit_hook()], [sqlite3_rollback_hook()],
** and [sqlite3_preupdate_hook()] interfaces.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_update_hook(
  sqlite3*, 
  void(SQLITE_CALLBACK *)(void *,int ,char const *,char const *,sqlite3_int64),
  void*
);

/*
** CAPI3REF: Enable Or Disable Shared Pager Cache
**
** ^(This routine enables or disables the sharing of the database cache
** and schema data structures between [database connection | connections]
** to the same database. Sharing is enabled if the argument is true
** and disabled if the argument is false.)^
**
** ^Cache sharing is enabled and disabled for an entire process.

** This is a change as of SQLite version 3.5.0. In prior versions of SQLite,
** sharing was enabled or disabled for each thread separately.
**
** ^(The cache sharing mode set by this interface effects all subsequent
** calls to [sqlite3_open()], [sqlite3_open_v2()], and [sqlite3_open16()].
** Existing database connections continue use the sharing mode
** that was in effect at the time they were opened.)^
**
................................................................................
** [sqlite3_open_v2()] with [SQLITE_OPEN_SHAREDCACHE].
**
** This interface is threadsafe on processors where writing a
** 32-bit integer is atomic.
**
** See Also:  [SQLite Shared-Cache Mode]
*/
SQLITE_API int SQLITE_APICALL sqlite3_enable_shared_cache(int);

/*
** CAPI3REF: Attempt To Free Heap Memory
**
** ^The sqlite3_release_memory() interface attempts to free N bytes
** of heap memory by deallocating non-essential memory allocations
** held by the database library.   Memory used to cache database
................................................................................
** ^sqlite3_release_memory() returns the number of bytes actually freed,
** which might be more or less than the amount requested.
** ^The sqlite3_release_memory() routine is a no-op returning zero
** if SQLite is not compiled with [SQLITE_ENABLE_MEMORY_MANAGEMENT].
**
** See also: [sqlite3_db_release_memory()]
*/
SQLITE_API int SQLITE_APICALL sqlite3_release_memory(int);

/*
** CAPI3REF: Free Memory Used By A Database Connection
** METHOD: sqlite3
**
** ^The sqlite3_db_release_memory(D) interface attempts to free as much heap
** memory as possible from database connection D. Unlike the
** [sqlite3_release_memory()] interface, this interface is in effect even
** when the [SQLITE_ENABLE_MEMORY_MANAGEMENT] compile-time option is
** omitted.
**
** See also: [sqlite3_release_memory()]
*/
SQLITE_API int SQLITE_APICALL sqlite3_db_release_memory(sqlite3*);

/*
** CAPI3REF: Impose A Limit On Heap Size
**
** ^The sqlite3_soft_heap_limit64() interface sets and/or queries the
** soft limit on the amount of heap memory that may be allocated by SQLite.
** ^SQLite strives to keep heap memory utilization below the soft heap
................................................................................
** <li> An alternative page cache implementation is specified using
**      [sqlite3_config]([SQLITE_CONFIG_PCACHE2],...).
** <li> The page cache allocates from its own memory pool supplied
**      by [sqlite3_config]([SQLITE_CONFIG_PAGECACHE],...) rather than
**      from the heap.
** </ul>)^
**

** Beginning with SQLite version 3.7.3, the soft heap limit is enforced
** regardless of whether or not the [SQLITE_ENABLE_MEMORY_MANAGEMENT]
** compile-time option is invoked.  With [SQLITE_ENABLE_MEMORY_MANAGEMENT],
** the soft heap limit is enforced on every memory allocation.  Without
** [SQLITE_ENABLE_MEMORY_MANAGEMENT], the soft heap limit is only enforced
** when memory is allocated by the page cache.  Testing suggests that because
** the page cache is the predominate memory user in SQLite, most
** applications will achieve adequate soft heap limit enforcement without
** the use of [SQLITE_ENABLE_MEMORY_MANAGEMENT].
**
** The circumstances under which SQLite will enforce the soft heap limit may
** changes in future releases of SQLite.
*/
SQLITE_API sqlite3_int64 SQLITE_APICALL sqlite3_soft_heap_limit64(sqlite3_int64 N);

/*
** CAPI3REF: Deprecated Soft Heap Limit Interface
** DEPRECATED
**
** This is a deprecated version of the [sqlite3_soft_heap_limit64()]
** interface.  This routine is provided for historical compatibility
** only.  All new applications should use the
** [sqlite3_soft_heap_limit64()] interface rather than this one.
*/
SQLITE_API SQLITE_DEPRECATED void SQLITE_APICALL sqlite3_soft_heap_limit(int N);


/*
** CAPI3REF: Extract Metadata About A Column Of A Table
** METHOD: sqlite3
**
** ^(The sqlite3_table_column_metadata(X,D,T,C,....) routine returns
................................................................................
** information about column C of table T in database D
** on [database connection] X.)^  ^The sqlite3_table_column_metadata()
** interface returns SQLITE_OK and fills in the non-NULL pointers in
** the final five arguments with appropriate values if the specified
** column exists.  ^The sqlite3_table_column_metadata() interface returns
** SQLITE_ERROR and if the specified column does not exist.
** ^If the column-name parameter to sqlite3_table_column_metadata() is a
** NULL pointer, then this routine simply checks for the existance of the
** table and returns SQLITE_OK if the table exists and SQLITE_ERROR if it
** does not.
**
** ^The column is identified by the second, third and fourth parameters to
** this function. ^(The second parameter is either the name of the database
** (i.e. "main", "temp", or an attached database) containing the specified
** table or NULL.)^ ^If it is NULL, then all attached databases are searched
................................................................................
**     auto increment: 0
** </pre>)^
**
** ^This function causes all database schemas to be read from disk and
** parsed, if that has not already been done, and returns an error if
** any errors are encountered while loading the schema.
*/
SQLITE_API int SQLITE_APICALL sqlite3_table_column_metadata(
  sqlite3 *db,                /* Connection handle */
  const char *zDbName,        /* Database name or NULL */
  const char *zTableName,     /* Table name */
  const char *zColumnName,    /* Column name */
  char const **pzDataType,    /* OUTPUT: Declared data type */
  char const **pzCollSeq,     /* OUTPUT: Collation sequence name */
  int *pNotNull,              /* OUTPUT: True if NOT NULL constraint exists */
................................................................................
** interface.  The use of the [sqlite3_enable_load_extension()] interface
** should be avoided.  This will keep the SQL function [load_extension()]
** disabled and prevent SQL injections from giving attackers
** access to extension loading capabilities.
**
** See also the [load_extension() SQL function].
*/
SQLITE_API int SQLITE_APICALL sqlite3_load_extension(
  sqlite3 *db,          /* Load the extension into this database connection */
  const char *zFile,    /* Name of the shared library containing extension */
  const char *zProc,    /* Entry point.  Derived from zFile if 0 */
  char **pzErrMsg       /* Put error message here if not 0 */
);

/*
................................................................................
** ^Extension loading is off by default.
** ^Call the sqlite3_enable_load_extension() routine with onoff==1
** to turn extension loading on and call it with onoff==0 to turn
** it back off again.
**
** ^This interface enables or disables both the C-API
** [sqlite3_load_extension()] and the SQL function [load_extension()].
** Use [sqlite3_db_config](db,[SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION],..)
** to enable or disable only the C-API.
**
** <b>Security warning:</b> It is recommended that extension loading
** be disabled using the [SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION] method
** rather than this interface, so the [load_extension()] SQL function
** remains disabled. This will prevent SQL injections from giving attackers
** access to extension loading capabilities.
*/
SQLITE_API int SQLITE_APICALL sqlite3_enable_load_extension(sqlite3 *db, int onoff);

/*
** CAPI3REF: Automatically Load Statically Linked Extensions
**
** ^This interface causes the xEntryPoint() function to be invoked for
** each new [database connection] that is created.  The idea here is that
** xEntryPoint() is the entry point for a statically linked [SQLite extension]
................................................................................
** ^Calling sqlite3_auto_extension(X) with an entry point X that is already
** on the list of automatic extensions is a harmless no-op. ^No entry point
** will be called more than once for each database connection that is opened.
**
** See also: [sqlite3_reset_auto_extension()]
** and [sqlite3_cancel_auto_extension()]
*/
SQLITE_API int SQLITE_APICALL sqlite3_auto_extension(void(SQLITE_CALLBACK *xEntryPoint)(void));

/*
** CAPI3REF: Cancel Automatic Extension Loading
**
** ^The [sqlite3_cancel_auto_extension(X)] interface unregisters the
** initialization routine X that was registered using a prior call to
** [sqlite3_auto_extension(X)].  ^The [sqlite3_cancel_auto_extension(X)]
** routine returns 1 if initialization routine X was successfully 
** unregistered and it returns 0 if X was not on the list of initialization
** routines.
*/
SQLITE_API int SQLITE_APICALL sqlite3_cancel_auto_extension(void(SQLITE_CALLBACK *xEntryPoint)(void));

/*
** CAPI3REF: Reset Automatic Extension Loading
**
** ^This interface disables all automatic extensions previously
** registered using [sqlite3_auto_extension()].
*/
SQLITE_API void SQLITE_APICALL sqlite3_reset_auto_extension(void);

/*
** The interface to the virtual-table mechanism is currently considered
** to be experimental.  The interface might change in incompatible ways.
** If this is a problem for you, do not use the interface at this time.
**
** When the virtual-table mechanism stabilizes, we will declare the
................................................................................
** ^The registration remains valid until it is replaced by a different
** module or until the [database connection] closes.  The content
** of this structure must not change while it is registered with
** any database connection.
*/
struct sqlite3_module {
  int iVersion;
  int (SQLITE_CALLBACK *xCreate)(sqlite3*, void *pAux,
               int argc, const char *const*argv,
               sqlite3_vtab **ppVTab, char**);
  int (SQLITE_CALLBACK *xConnect)(sqlite3*, void *pAux,
               int argc, const char *const*argv,
               sqlite3_vtab **ppVTab, char**);
  int (SQLITE_CALLBACK *xBestIndex)(sqlite3_vtab *pVTab, sqlite3_index_info*);
  int (SQLITE_CALLBACK *xDisconnect)(sqlite3_vtab *pVTab);
  int (SQLITE_CALLBACK *xDestroy)(sqlite3_vtab *pVTab);
  int (SQLITE_CALLBACK *xOpen)(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor);
  int (SQLITE_CALLBACK *xClose)(sqlite3_vtab_cursor*);
  int (SQLITE_CALLBACK *xFilter)(sqlite3_vtab_cursor*, int idxNum, const char *idxStr,
                int argc, sqlite3_value **argv);
  int (SQLITE_CALLBACK *xNext)(sqlite3_vtab_cursor*);
  int (SQLITE_CALLBACK *xEof)(sqlite3_vtab_cursor*);
  int (SQLITE_CALLBACK *xColumn)(sqlite3_vtab_cursor*, sqlite3_context*, int);
  int (SQLITE_CALLBACK *xRowid)(sqlite3_vtab_cursor*, sqlite3_int64 *pRowid);
  int (SQLITE_CALLBACK *xUpdate)(sqlite3_vtab *, int, sqlite3_value **, sqlite3_int64 *);
  int (SQLITE_CALLBACK *xBegin)(sqlite3_vtab *pVTab);
  int (SQLITE_CALLBACK *xSync)(sqlite3_vtab *pVTab);
  int (SQLITE_CALLBACK *xCommit)(sqlite3_vtab *pVTab);
  int (SQLITE_CALLBACK *xRollback)(sqlite3_vtab *pVTab);
  int (SQLITE_CALLBACK *xFindFunction)(sqlite3_vtab *pVtab, int nArg, const char *zName,
                       void (SQLITE_CALLBACK **pxFunc)(sqlite3_context*,int,sqlite3_value**),
                       void **ppArg);
  int (SQLITE_CALLBACK *xRename)(sqlite3_vtab *pVtab, const char *zNew);
  /* The methods above are in version 1 of the sqlite_module object. Those 
  ** below are for version 2 and greater. */
  int (SQLITE_CALLBACK *xSavepoint)(sqlite3_vtab *pVTab, int);
  int (SQLITE_CALLBACK *xRelease)(sqlite3_vtab *pVTab, int);
  int (SQLITE_CALLBACK *xRollbackTo)(sqlite3_vtab *pVTab, int);
};

/*
** CAPI3REF: Virtual Table Indexing Information
** KEYWORDS: sqlite3_index_info
**
** The sqlite3_index_info structure and its substructures is used as part
................................................................................
** any database changes. In other words, if the xUpdate() returns
** SQLITE_CONSTRAINT, the database contents must be exactly as they were
** before xUpdate was called. By contrast, if SQLITE_INDEX_SCAN_UNIQUE is not
** set and xUpdate returns SQLITE_CONSTRAINT, any database changes made by
** the xUpdate method are automatically rolled back by SQLite.
**
** IMPORTANT: The estimatedRows field was added to the sqlite3_index_info

** structure for SQLite version 3.8.2. If a virtual table extension is
** used with an SQLite version earlier than 3.8.2, the results of attempting 
** to read or write the estimatedRows field are undefined (but are likely 
** to included crashing the application). The estimatedRows field should
** therefore only be used if [sqlite3_libversion_number()] returns a
** value greater than or equal to 3008002. Similarly, the idxFlags field

** was added for version 3.9.0. It may therefore only be used if
** sqlite3_libversion_number() returns a value greater than or equal to
** 3009000.
*/
struct sqlite3_index_info {
  /* Inputs */
  int nConstraint;           /* Number of entries in aConstraint */
  struct sqlite3_index_constraint {
................................................................................
** invoke the destructor function (if it is not NULL) when SQLite
** no longer needs the pClientData pointer.  ^The destructor will also
** be invoked if the call to sqlite3_create_module_v2() fails.
** ^The sqlite3_create_module()
** interface is equivalent to sqlite3_create_module_v2() with a NULL
** destructor.
*/
SQLITE_API int SQLITE_APICALL sqlite3_create_module(
  sqlite3 *db,               /* SQLite connection to register module with */
  const char *zName,         /* Name of the module */
  const sqlite3_module *p,   /* Methods for the module */
  void *pClientData          /* Client data for xCreate/xConnect */
);
SQLITE_API int SQLITE_APICALL sqlite3_create_module_v2(
  sqlite3 *db,               /* SQLite connection to register module with */
  const char *zName,         /* Name of the module */
  const sqlite3_module *p,   /* Methods for the module */
  void *pClientData,         /* Client data for xCreate/xConnect */
  void(SQLITE_CALLBACK *xDestroy)(void*)     /* Module destructor function */
);

/*
** CAPI3REF: Virtual Table Instance Object
** KEYWORDS: sqlite3_vtab
**
** Every [virtual table module] implementation uses a subclass
................................................................................
** CAPI3REF: Declare The Schema Of A Virtual Table
**
** ^The [xCreate] and [xConnect] methods of a
** [virtual table module] call this interface
** to declare the format (the names and datatypes of the columns) of
** the virtual tables they implement.
*/
SQLITE_API int SQLITE_APICALL sqlite3_declare_vtab(sqlite3*, const char *zSQL);

/*
** CAPI3REF: Overload A Function For A Virtual Table
** METHOD: sqlite3
**
** ^(Virtual tables can provide alternative implementations of functions
** using the [xFindFunction] method of the [virtual table module].  
................................................................................
** name and number of parameters exists.  If no such function exists
** before this API is called, a new function is created.)^  ^The implementation
** of the new function always causes an exception to be thrown.  So
** the new function is not good for anything by itself.  Its only
** purpose is to be a placeholder function that can be overloaded
** by a [virtual table].
*/
SQLITE_API int SQLITE_APICALL sqlite3_overload_function(sqlite3*, const char *zFuncName, int nArg);

/*
** The interface to the virtual-table mechanism defined above (back up
** to a comment remarkably similar to this one) is currently considered
** to be experimental.  The interface might change in incompatible ways.
** If this is a problem for you, do not use the interface at this time.
**
................................................................................
** ^The [sqlite3_bind_zeroblob()] and [sqlite3_result_zeroblob()] interfaces
** and the built-in [zeroblob] SQL function may be used to create a 
** zero-filled blob to read or write using the incremental-blob interface.
**
** To avoid a resource leak, every open [BLOB handle] should eventually
** be released by a call to [sqlite3_blob_close()].
*/
SQLITE_API int SQLITE_APICALL sqlite3_blob_open(
  sqlite3*,
  const char *zDb,
  const char *zTable,
  const char *zColumn,
  sqlite3_int64 iRow,
  int flags,
  sqlite3_blob **ppBlob
................................................................................
** ^All subsequent calls to [sqlite3_blob_read()], [sqlite3_blob_write()] or
** [sqlite3_blob_reopen()] on an aborted blob handle immediately return
** SQLITE_ABORT. ^Calling [sqlite3_blob_bytes()] on an aborted blob handle
** always returns zero.
**
** ^This function sets the database handle error code and message.
*/
SQLITE_API int SQLITE_APICALL sqlite3_blob_reopen(sqlite3_blob *, sqlite3_int64);

/*
** CAPI3REF: Close A BLOB Handle
** DESTRUCTOR: sqlite3_blob
**
** ^This function closes an open [BLOB handle]. ^(The BLOB handle is closed
** unconditionally.  Even if this routine returns an error code, the 
................................................................................
** Calling this function with an argument that is not a NULL pointer or an
** open blob handle results in undefined behaviour. ^Calling this routine 
** with a null pointer (such as would be returned by a failed call to 
** [sqlite3_blob_open()]) is a harmless no-op. ^Otherwise, if this function
** is passed a valid open blob handle, the values returned by the 
** sqlite3_errcode() and sqlite3_errmsg() functions are set before returning.
*/
SQLITE_API int SQLITE_APICALL sqlite3_blob_close(sqlite3_blob *);

/*
** CAPI3REF: Return The Size Of An Open BLOB
** METHOD: sqlite3_blob
**
** ^Returns the size in bytes of the BLOB accessible via the 
** successfully opened [BLOB handle] in its only argument.  ^The
................................................................................
** blob content; they cannot change the size of a blob.
**
** This routine only works on a [BLOB handle] which has been created
** by a prior successful call to [sqlite3_blob_open()] and which has not
** been closed by [sqlite3_blob_close()].  Passing any other pointer in
** to this routine results in undefined and probably undesirable behavior.
*/
SQLITE_API int SQLITE_APICALL sqlite3_blob_bytes(sqlite3_blob *);

/*
** CAPI3REF: Read Data From A BLOB Incrementally
** METHOD: sqlite3_blob
**
** ^(This function is used to read data from an open [BLOB handle] into a
** caller-supplied buffer. N bytes of data are copied into buffer Z
................................................................................
** This routine only works on a [BLOB handle] which has been created
** by a prior successful call to [sqlite3_blob_open()] and which has not
** been closed by [sqlite3_blob_close()].  Passing any other pointer in
** to this routine results in undefined and probably undesirable behavior.
**
** See also: [sqlite3_blob_write()].
*/
SQLITE_API int SQLITE_APICALL sqlite3_blob_read(sqlite3_blob *, void *Z, int N, int iOffset);

/*
** CAPI3REF: Write Data Into A BLOB Incrementally
** METHOD: sqlite3_blob
**
** ^(This function is used to write data into an open [BLOB handle] from a
** caller-supplied buffer. N bytes of data are copied from the buffer Z
................................................................................
** This routine only works on a [BLOB handle] which has been created
** by a prior successful call to [sqlite3_blob_open()] and which has not
** been closed by [sqlite3_blob_close()].  Passing any other pointer in
** to this routine results in undefined and probably undesirable behavior.
**
** See also: [sqlite3_blob_read()].
*/
SQLITE_API int SQLITE_APICALL sqlite3_blob_write(sqlite3_blob *, const void *z, int n, int iOffset);

/*
** CAPI3REF: Virtual File System Objects
**
** A virtual filesystem (VFS) is an [sqlite3_vfs] object
** that SQLite uses to interact
** with the underlying operating system.  Most SQLite builds come with a
................................................................................
** VFS is registered with a name that is NULL or an empty string,
** then the behavior is undefined.
**
** ^Unregister a VFS with the sqlite3_vfs_unregister() interface.
** ^(If the default VFS is unregistered, another VFS is chosen as
** the default.  The choice for the new VFS is arbitrary.)^
*/
SQLITE_API sqlite3_vfs *SQLITE_APICALL sqlite3_vfs_find(const char *zVfsName);
SQLITE_API int SQLITE_APICALL sqlite3_vfs_register(sqlite3_vfs*, int makeDflt);
SQLITE_API int SQLITE_APICALL sqlite3_vfs_unregister(sqlite3_vfs*);

/*
** CAPI3REF: Mutexes
**
** The SQLite core uses these routines for thread
** synchronization. Though they are intended for internal
** use by SQLite, code that links against SQLite is
................................................................................
**
** ^If the argument to sqlite3_mutex_enter(), sqlite3_mutex_try(), or
** sqlite3_mutex_leave() is a NULL pointer, then all three routines
** behave as no-ops.
**
** See also: [sqlite3_mutex_held()] and [sqlite3_mutex_notheld()].
*/
SQLITE_API sqlite3_mutex *SQLITE_APICALL sqlite3_mutex_alloc(int);
SQLITE_API void SQLITE_APICALL sqlite3_mutex_free(sqlite3_mutex*);
SQLITE_API void SQLITE_APICALL sqlite3_mutex_enter(sqlite3_mutex*);
SQLITE_API int SQLITE_APICALL sqlite3_mutex_try(sqlite3_mutex*);
SQLITE_API void SQLITE_APICALL sqlite3_mutex_leave(sqlite3_mutex*);

/*
** CAPI3REF: Mutex Methods Object
**
** An instance of this structure defines the low-level routines
** used to allocate and use mutexes.
**
................................................................................
** ^SQLite will invoke the xMutexEnd() method when [sqlite3_shutdown()] is
** called, but only if the prior call to xMutexInit returned SQLITE_OK.
** If xMutexInit fails in any way, it is expected to clean up after itself
** prior to returning.
*/
typedef struct sqlite3_mutex_methods sqlite3_mutex_methods;
struct sqlite3_mutex_methods {
  int (SQLITE_CALLBACK *xMutexInit)(void);
  int (SQLITE_CALLBACK *xMutexEnd)(void);
  sqlite3_mutex *(SQLITE_CALLBACK *xMutexAlloc)(int);
  void (SQLITE_CALLBACK *xMutexFree)(sqlite3_mutex *);
  void (SQLITE_CALLBACK *xMutexEnter)(sqlite3_mutex *);
  int (SQLITE_CALLBACK *xMutexTry)(sqlite3_mutex *);
  void (SQLITE_CALLBACK *xMutexLeave)(sqlite3_mutex *);
  int (SQLITE_CALLBACK *xMutexHeld)(sqlite3_mutex *);
  int (SQLITE_CALLBACK *xMutexNotheld)(sqlite3_mutex *);
};

/*
** CAPI3REF: Mutex Verification Routines
**
** The sqlite3_mutex_held() and sqlite3_mutex_notheld() routines
** are intended for use inside assert() statements.  The SQLite core
................................................................................
** the reason the mutex does not exist is because the build is not
** using mutexes.  And we do not want the assert() containing the
** call to sqlite3_mutex_held() to fail, so a non-zero return is
** the appropriate thing to do.  The sqlite3_mutex_notheld()
** interface should also return 1 when given a NULL pointer.
*/
#ifndef NDEBUG
SQLITE_API int SQLITE_APICALL sqlite3_mutex_held(sqlite3_mutex*);
SQLITE_API int SQLITE_APICALL sqlite3_mutex_notheld(sqlite3_mutex*);
#endif

/*
** CAPI3REF: Mutex Types
**
** The [sqlite3_mutex_alloc()] interface takes a single argument
** which is one of these integer constants.
................................................................................
*/
#define SQLITE_MUTEX_FAST             0
#define SQLITE_MUTEX_RECURSIVE        1
#define SQLITE_MUTEX_STATIC_MASTER    2
#define SQLITE_MUTEX_STATIC_MEM       3  /* sqlite3_malloc() */
#define SQLITE_MUTEX_STATIC_MEM2      4  /* NOT USED */
#define SQLITE_MUTEX_STATIC_OPEN      4  /* sqlite3BtreeOpen() */
#define SQLITE_MUTEX_STATIC_PRNG      5  /* sqlite3_random() */
#define SQLITE_MUTEX_STATIC_LRU       6  /* lru page list */
#define SQLITE_MUTEX_STATIC_LRU2      7  /* NOT USED */
#define SQLITE_MUTEX_STATIC_PMEM      7  /* sqlite3PageMalloc() */
#define SQLITE_MUTEX_STATIC_APP1      8  /* For use by application */
#define SQLITE_MUTEX_STATIC_APP2      9  /* For use by application */
#define SQLITE_MUTEX_STATIC_APP3     10  /* For use by application */
#define SQLITE_MUTEX_STATIC_VFS1     11  /* For use by built-in VFS */
................................................................................
**
** ^This interface returns a pointer the [sqlite3_mutex] object that 
** serializes access to the [database connection] given in the argument
** when the [threading mode] is Serialized.
** ^If the [threading mode] is Single-thread or Multi-thread then this
** routine returns a NULL pointer.
*/
SQLITE_API sqlite3_mutex *SQLITE_APICALL sqlite3_db_mutex(sqlite3*);

/*
** CAPI3REF: Low-Level Control Of Database Files
** METHOD: sqlite3
**
** ^The [sqlite3_file_control()] interface makes a direct call to the
** xFileControl method for the [sqlite3_io_methods] object associated
................................................................................
** or [sqlite3_errmsg()].  The underlying xFileControl method might
** also return SQLITE_ERROR.  There is no way to distinguish between
** an incorrect zDbName and an SQLITE_ERROR return from the underlying
** xFileControl method.
**
** See also: [SQLITE_FCNTL_LOCKSTATE]
*/
SQLITE_API int SQLITE_APICALL sqlite3_file_control(sqlite3*, const char *zDbName, int op, void*);

/*
** CAPI3REF: Testing Interface
**
** ^The sqlite3_test_control() interface is used to read out internal
** state of SQLite and to inject faults into SQLite for testing
** purposes.  ^The first parameter is an operation code that determines
................................................................................
** on how the SQLite library is compiled, this interface might not exist.
**
** The details of the operation codes, their meanings, the parameters
** they take, and what they do are all subject to change without notice.
** Unlike most of the SQLite API, this function is not guaranteed to
** operate consistently from one release to the next.
*/
SQLITE_API int SQLITE_CDECL sqlite3_test_control(int op, ...);

/*
** CAPI3REF: Testing Interface Operation Codes
**
** These constants are the valid operation code parameters used
** as the first argument to [sqlite3_test_control()].
**
................................................................................
#define SQLITE_TESTCTRL_ALWAYS                  13
#define SQLITE_TESTCTRL_RESERVE                 14
#define SQLITE_TESTCTRL_OPTIMIZATIONS           15
#define SQLITE_TESTCTRL_ISKEYWORD               16
#define SQLITE_TESTCTRL_SCRATCHMALLOC           17
#define SQLITE_TESTCTRL_LOCALTIME_FAULT         18
#define SQLITE_TESTCTRL_EXPLAIN_STMT            19  /* NOT USED */

#define SQLITE_TESTCTRL_NEVER_CORRUPT           20
#define SQLITE_TESTCTRL_VDBE_COVERAGE           21
#define SQLITE_TESTCTRL_BYTEORDER               22
#define SQLITE_TESTCTRL_ISINIT                  23
#define SQLITE_TESTCTRL_SORTER_MMAP             24
#define SQLITE_TESTCTRL_IMPOSTER                25
#define SQLITE_TESTCTRL_LAST                    25
................................................................................
**
** If either the current value or the highwater mark is too large to
** be represented by a 32-bit integer, then the values returned by
** sqlite3_status() are undefined.
**
** See also: [sqlite3_db_status()]
*/
SQLITE_API int SQLITE_APICALL sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag);
SQLITE_API int SQLITE_APICALL sqlite3_status64(
  int op,
  sqlite3_int64 *pCurrent,
  sqlite3_int64 *pHighwater,
  int resetFlag
);


................................................................................
** reset back down to the current value.
**
** ^The sqlite3_db_status() routine returns SQLITE_OK on success and a
** non-zero [error code] on failure.
**
** See also: [sqlite3_status()] and [sqlite3_stmt_status()].
*/
SQLITE_API int SQLITE_APICALL sqlite3_db_status(sqlite3*, int op, int *pCur, int *pHiwtr, int resetFlg);

/*
** CAPI3REF: Status Parameters for database connections
** KEYWORDS: {SQLITE_DBSTATUS options}
**
** These constants are the available integer "verbs" that can be passed as
** the second argument to the [sqlite3_db_status()] interface.
................................................................................
** to be interrogated.)^
** ^The current value of the requested counter is returned.
** ^If the resetFlg is true, then the counter is reset to zero after this
** interface call returns.
**
** See also: [sqlite3_status()] and [sqlite3_db_status()].
*/
SQLITE_API int SQLITE_APICALL sqlite3_stmt_status(sqlite3_stmt*, int op,int resetFlg);

/*
** CAPI3REF: Status Parameters for prepared statements
** KEYWORDS: {SQLITE_STMTSTATUS counter} {SQLITE_STMTSTATUS counters}
**
** These preprocessor macros define integer codes that name counter
** values associated with the [sqlite3_stmt_status()] interface.
................................................................................
** is not obligated to free any memory, but well-behaved implementations should
** do their best.
*/
typedef struct sqlite3_pcache_methods2 sqlite3_pcache_methods2;
struct sqlite3_pcache_methods2 {
  int iVersion;
  void *pArg;
  int (SQLITE_CALLBACK *xInit)(void*);
  void (SQLITE_CALLBACK *xShutdown)(void*);
  sqlite3_pcache *(SQLITE_CALLBACK *xCreate)(int szPage, int szExtra, int bPurgeable);
  void (SQLITE_CALLBACK *xCachesize)(sqlite3_pcache*, int nCachesize);
  int (SQLITE_CALLBACK *xPagecount)(sqlite3_pcache*);
  sqlite3_pcache_page *(SQLITE_CALLBACK *xFetch)(sqlite3_pcache*, unsigned key, int createFlag);
  void (SQLITE_CALLBACK *xUnpin)(sqlite3_pcache*, sqlite3_pcache_page*, int discard);
  void (SQLITE_CALLBACK *xRekey)(sqlite3_pcache*, sqlite3_pcache_page*, 
      unsigned oldKey, unsigned newKey);
  void (SQLITE_CALLBACK *xTruncate)(sqlite3_pcache*, unsigned iLimit);
  void (SQLITE_CALLBACK *xDestroy)(sqlite3_pcache*);
  void (SQLITE_CALLBACK *xShrink)(sqlite3_pcache*);
};

/*
** This is the obsolete pcache_methods object that has now been replaced
** by sqlite3_pcache_methods2.  This object is not used by SQLite.  It is
** retained in the header file for backwards compatibility only.
*/
typedef struct sqlite3_pcache_methods sqlite3_pcache_methods;
struct sqlite3_pcache_methods {
  void *pArg;
  int (SQLITE_CALLBACK *xInit)(void*);
  void (SQLITE_CALLBACK *xShutdown)(void*);
  sqlite3_pcache *(SQLITE_CALLBACK *xCreate)(int szPage, int bPurgeable);
  void (SQLITE_CALLBACK *xCachesize)(sqlite3_pcache*, int nCachesize);
  int (SQLITE_CALLBACK *xPagecount)(sqlite3_pcache*);
  void *(SQLITE_CALLBACK *xFetch)(sqlite3_pcache*, unsigned key, int createFlag);
  void (SQLITE_CALLBACK *xUnpin)(sqlite3_pcache*, void*, int discard);
  void (SQLITE_CALLBACK *xRekey)(sqlite3_pcache*, void*, unsigned oldKey, unsigned newKey);
  void (SQLITE_CALLBACK *xTruncate)(sqlite3_pcache*, unsigned iLimit);
  void (SQLITE_CALLBACK *xDestroy)(sqlite3_pcache*);
};


/*
** CAPI3REF: Online Backup Object
**
** The sqlite3_backup object records state information about an ongoing
................................................................................
** The [sqlite3_backup] object itself is partially threadsafe. Multiple 
** threads may safely make multiple concurrent calls to sqlite3_backup_step().
** However, the sqlite3_backup_remaining() and sqlite3_backup_pagecount()
** APIs are not strictly speaking threadsafe. If they are invoked at the
** same time as another thread is invoking sqlite3_backup_step() it is
** possible that they return invalid values.
*/
SQLITE_API sqlite3_backup *SQLITE_APICALL sqlite3_backup_init(
  sqlite3 *pDest,                        /* Destination database handle */
  const char *zDestName,                 /* Destination database name */
  sqlite3 *pSource,                      /* Source database handle */
  const char *zSourceName                /* Source database name */
);
SQLITE_API int SQLITE_APICALL sqlite3_backup_step(sqlite3_backup *p, int nPage);
SQLITE_API int SQLITE_APICALL sqlite3_backup_finish(sqlite3_backup *p);
SQLITE_API int SQLITE_APICALL sqlite3_backup_remaining(sqlite3_backup *p);
SQLITE_API int SQLITE_APICALL sqlite3_backup_pagecount(sqlite3_backup *p);

/*
** CAPI3REF: Unlock Notification
** METHOD: sqlite3
**
** ^When running in shared-cache mode, a database operation may fail with
** an [SQLITE_LOCKED] error if the required locks on the shared-cache or
................................................................................
**
** One way around this problem is to check the extended error code returned
** by an sqlite3_step() call. ^(If there is a blocking connection, then the
** extended error code is set to SQLITE_LOCKED_SHAREDCACHE. Otherwise, in
** the special "DROP TABLE/INDEX" case, the extended error code is just 
** SQLITE_LOCKED.)^
*/
SQLITE_API int SQLITE_APICALL sqlite3_unlock_notify(
  sqlite3 *pBlocked,                          /* Waiting connection */
  void (SQLITE_CALLBACK *xNotify)(void **apArg, int nArg),    /* Callback function to invoke */
  void *pNotifyArg                            /* Argument to pass to xNotify */
);


/*
** CAPI3REF: String Comparison
**
** ^The [sqlite3_stricmp()] and [sqlite3_strnicmp()] APIs allow applications
** and extensions to compare the contents of two buffers containing UTF-8
** strings in a case-independent fashion, using the same definition of "case
** independence" that SQLite uses internally when comparing identifiers.
*/
SQLITE_API int SQLITE_APICALL sqlite3_stricmp(const char *, const char *);
SQLITE_API int SQLITE_APICALL sqlite3_strnicmp(const char *, const char *, int);

/*
** CAPI3REF: String Globbing
*
** ^The [sqlite3_strglob(P,X)] interface returns zero if and only if
** string X matches the [GLOB] pattern P.
** ^The definition of [GLOB] pattern matching used in
................................................................................
** is case sensitive.
**
** Note that this routine returns zero on a match and non-zero if the strings
** do not match, the same as [sqlite3_stricmp()] and [sqlite3_strnicmp()].
**
** See also: [sqlite3_strlike()].
*/
SQLITE_API int SQLITE_APICALL sqlite3_strglob(const char *zGlob, const char *zStr);

/*
** CAPI3REF: String LIKE Matching
*
** ^The [sqlite3_strlike(P,X,E)] interface returns zero if and only if
** string X matches the [LIKE] pattern P with escape character E.
** ^The definition of [LIKE] pattern matching used in
................................................................................
** only ASCII characters are case folded.
**
** Note that this routine returns zero on a match and non-zero if the strings
** do not match, the same as [sqlite3_stricmp()] and [sqlite3_strnicmp()].
**
** See also: [sqlite3_strglob()].
*/
SQLITE_API int SQLITE_APICALL sqlite3_strlike(const char *zGlob, const char *zStr, unsigned int cEsc);

/*
** CAPI3REF: Error Logging Interface
**
** ^The [sqlite3_log()] interface writes a message into the [error log]
** established by the [SQLITE_CONFIG_LOG] option to [sqlite3_config()].
** ^If logging is enabled, the zFormat string and subsequent arguments are
................................................................................
**
** To avoid deadlocks and other threading problems, the sqlite3_log() routine
** will not use dynamically allocated memory.  The log message is stored in
** a fixed-length buffer on the stack.  If the log message is longer than
** a few hundred characters, it will be truncated to the length of the
** buffer.
*/
SQLITE_API void SQLITE_CDECL sqlite3_log(int iErrCode, const char *zFormat, ...);

/*
** CAPI3REF: Write-Ahead Log Commit Hook
** METHOD: sqlite3
**
** ^The [sqlite3_wal_hook()] function is used to register a callback that
** is invoked each time data is committed to a database in wal mode.
................................................................................
** A single database handle may have at most a single write-ahead log callback 
** registered at one time. ^Calling [sqlite3_wal_hook()] replaces any
** previously registered write-ahead log callback. ^Note that the
** [sqlite3_wal_autocheckpoint()] interface and the
** [wal_autocheckpoint pragma] both invoke [sqlite3_wal_hook()] and will
** overwrite any prior [sqlite3_wal_hook()] settings.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_wal_hook(
  sqlite3*, 
  int(SQLITE_CALLBACK *)(void *,sqlite3*,const char*,int),
  void*
);

/*
** CAPI3REF: Configure an auto-checkpoint
** METHOD: sqlite3
**
................................................................................
**
** ^Every new [database connection] defaults to having the auto-checkpoint
** enabled with a threshold of 1000 or [SQLITE_DEFAULT_WAL_AUTOCHECKPOINT]
** pages.  The use of this interface
** is only necessary if the default setting is found to be suboptimal
** for a particular application.
*/
SQLITE_API int SQLITE_APICALL sqlite3_wal_autocheckpoint(sqlite3 *db, int N);

/*
** CAPI3REF: Checkpoint a database
** METHOD: sqlite3
**
** ^(The sqlite3_wal_checkpoint(D,X) is equivalent to
** [sqlite3_wal_checkpoint_v2](D,X,[SQLITE_CHECKPOINT_PASSIVE],0,0).)^
................................................................................
** This interface used to be the only way to cause a checkpoint to
** occur.  But then the newer and more powerful [sqlite3_wal_checkpoint_v2()]
** interface was added.  This interface is retained for backwards
** compatibility and as a convenience for applications that need to manually
** start a callback but which do not need the full power (and corresponding
** complication) of [sqlite3_wal_checkpoint_v2()].
*/
SQLITE_API int SQLITE_APICALL sqlite3_wal_checkpoint(sqlite3 *db, const char *zDb);

/*
** CAPI3REF: Checkpoint a database
** METHOD: sqlite3
**
** ^(The sqlite3_wal_checkpoint_v2(D,X,M,L,C) interface runs a checkpoint
** operation on database X of [database connection] D in mode M.  Status
................................................................................
** the sqlite3_wal_checkpoint_v2() interface
** sets the error information that is queried by
** [sqlite3_errcode()] and [sqlite3_errmsg()].
**
** ^The [PRAGMA wal_checkpoint] command can be used to invoke this interface
** from SQL.
*/
SQLITE_API int SQLITE_APICALL sqlite3_wal_checkpoint_v2(
  sqlite3 *db,                    /* Database handle */
  const char *zDb,                /* Name of attached database (or NULL) */
  int eMode,                      /* SQLITE_CHECKPOINT_* value */
  int *pnLog,                     /* OUT: Size of WAL log in frames */
  int *pnCkpt                     /* OUT: Total number of frames checkpointed */
);

................................................................................
** If this interface is invoked outside the context of an xConnect or
** xCreate virtual table method then the behavior is undefined.
**
** At present, there is only one option that may be configured using
** this function. (See [SQLITE_VTAB_CONSTRAINT_SUPPORT].)  Further options
** may be added in the future.
*/
SQLITE_API int SQLITE_CDECL sqlite3_vtab_config(sqlite3*, int op, ...);

/*
** CAPI3REF: Virtual Table Configuration Options
**
** These macros define the various options to the
** [sqlite3_vtab_config()] interface that [virtual table] implementations
** can use to customize and optimize their behavior.
................................................................................
** This function may only be called from within a call to the [xUpdate] method
** of a [virtual table] implementation for an INSERT or UPDATE operation. ^The
** value returned is one of [SQLITE_ROLLBACK], [SQLITE_IGNORE], [SQLITE_FAIL],
** [SQLITE_ABORT], or [SQLITE_REPLACE], according to the [ON CONFLICT] mode
** of the SQL statement that triggered the call to the [xUpdate] method of the
** [virtual table].
*/
SQLITE_API int SQLITE_APICALL sqlite3_vtab_on_conflict(sqlite3 *);

/*
** CAPI3REF: Conflict resolution modes
** KEYWORDS: {conflict resolution mode}
**
** These constants are returned by [sqlite3_vtab_on_conflict()] to
** inform a [virtual table] implementation what the [ON CONFLICT] mode
................................................................................
** ^Statistics might not be available for all loops in all statements. ^In cases
** where there exist loops with no available statistics, this function behaves
** as if the loop did not exist - it returns non-zero and leave the variable
** that pOut points to unchanged.
**
** See also: [sqlite3_stmt_scanstatus_reset()]
*/
SQLITE_API int SQLITE_APICALL sqlite3_stmt_scanstatus(
  sqlite3_stmt *pStmt,      /* Prepared statement for which info desired */
  int idx,                  /* Index of loop to report on */
  int iScanStatusOp,        /* Information desired.  SQLITE_SCANSTAT_* */
  void *pOut                /* Result written here */
);     

/*
................................................................................
** METHOD: sqlite3_stmt
**
** ^Zero all [sqlite3_stmt_scanstatus()] related event counters.
**
** This API is only available if the library is built with pre-processor
** symbol [SQLITE_ENABLE_STMT_SCANSTATUS] defined.
*/
SQLITE_API void SQLITE_APICALL sqlite3_stmt_scanstatus_reset(sqlite3_stmt*);

/*
** CAPI3REF: Flush caches to disk mid-transaction
**
** ^If a write-transaction is open on [database connection] D when the
** [sqlite3_db_cacheflush(D)] interface invoked, any dirty
** pages in the pager-cache that are not currently in use are written out 
................................................................................
** abandoned and an SQLite [error code] is returned to the caller immediately.
**
** ^Otherwise, if no error occurs, [sqlite3_db_cacheflush()] returns SQLITE_OK.
**
** ^This function does not set the database handle error code or message
** returned by the [sqlite3_errcode()] and [sqlite3_errmsg()] functions.
*/
SQLITE_API int SQLITE_APICALL sqlite3_db_cacheflush(sqlite3*);

/*
** CAPI3REF: The pre-update hook.
**
** ^These interfaces are only available if SQLite is compiled using the
** [SQLITE_ENABLE_PREUPDATE_HOOK] compile-time option.
**
................................................................................
** ^The preupdate hook only fires for changes to [rowid tables]; the preupdate
** hook is not invoked for changes to [virtual tables] or [WITHOUT ROWID]
** tables.
**
** ^The second parameter to the preupdate callback is a pointer to
** the [database connection] that registered the preupdate hook.
** ^The third parameter to the preupdate callback is one of the constants
** [SQLITE_INSERT], [SQLITE_DELETE], or [SQLITE_UPDATE] to indentify the
** kind of update operation that is about to occur.
** ^(The fourth parameter to the preupdate callback is the name of the
** database within the database connection that is being modified.  This
** will be "main" for the main database or "temp" for TEMP tables or 
** the name given after the AS keyword in the [ATTACH] statement for attached
** databases.)^
** ^The fifth parameter to the preupdate callback is the name of the
................................................................................
** callback was invoked as a result of a direct insert, update, or delete
** operation; or 1 for inserts, updates, or deletes invoked by top-level 
** triggers; or 2 for changes resulting from triggers called by top-level
** triggers; and so forth.
**
** See also:  [sqlite3_update_hook()]
*/
SQLITE_API SQLITE_EXPERIMENTAL void *SQLITE_APICALL sqlite3_preupdate_hook(
  sqlite3 *db,
  void(SQLITE_CALLBACK *xPreUpdate)(
    void *pCtx,                   /* Copy of third arg to preupdate_hook() */
    sqlite3 *db,                  /* Database handle */
    int op,                       /* SQLITE_UPDATE, DELETE or INSERT */
    char const *zDb,              /* Database name */
    char const *zName,            /* Table name */
    sqlite3_int64 iKey1,          /* Rowid of row about to be deleted/updated */
    sqlite3_int64 iKey2           /* New rowid value (for a rowid UPDATE) */
  ),
  void*
);
SQLITE_API SQLITE_EXPERIMENTAL int SQLITE_APICALL sqlite3_preupdate_old(sqlite3 *, int, sqlite3_value **);
SQLITE_API SQLITE_EXPERIMENTAL int SQLITE_APICALL sqlite3_preupdate_count(sqlite3 *);
SQLITE_API SQLITE_EXPERIMENTAL int SQLITE_APICALL sqlite3_preupdate_depth(sqlite3 *);
SQLITE_API SQLITE_EXPERIMENTAL int SQLITE_APICALL sqlite3_preupdate_new(sqlite3 *, int, sqlite3_value **);

/*
** CAPI3REF: Low-level system error code
**
** ^Attempt to return the underlying operating system error code or error
** number that caused the most recent I/O error or failure to open a file.
** The return value is OS-dependent.  For example, on unix systems, after
** [sqlite3_open_v2()] returns [SQLITE_CANTOPEN], this interface could be
** called to get back the underlying "errno" that caused the problem, such
** as ENOSPC, EAUTH, EISDIR, and so forth.  
*/
SQLITE_API int SQLITE_APICALL sqlite3_system_errno(sqlite3*);

/*
** CAPI3REF: Database Snapshot
** KEYWORDS: {snapshot}
** EXPERIMENTAL
**
** An instance of the snapshot object records the state of a [WAL mode]
................................................................................
** The [sqlite3_snapshot] object returned from a successful call to
** [sqlite3_snapshot_get()] must be freed using [sqlite3_snapshot_free()]
** to avoid a memory leak.
**
** The [sqlite3_snapshot_get()] interface is only available when the
** SQLITE_ENABLE_SNAPSHOT compile-time option is used.
*/
SQLITE_API SQLITE_EXPERIMENTAL int SQLITE_APICALL sqlite3_snapshot_get(
  sqlite3 *db,
  const char *zSchema,
  sqlite3_snapshot **ppSnapshot
);

/*
** CAPI3REF: Start a read transaction on an historical snapshot
................................................................................
** after the most recent I/O on the database connection.)^
** (Hint: Run "[PRAGMA application_id]" against a newly opened
** database connection in order to make it ready to use snapshots.)
**
** The [sqlite3_snapshot_open()] interface is only available when the
** SQLITE_ENABLE_SNAPSHOT compile-time option is used.
*/
SQLITE_API SQLITE_EXPERIMENTAL int SQLITE_APICALL sqlite3_snapshot_open(
  sqlite3 *db,
  const char *zSchema,
  sqlite3_snapshot *pSnapshot
);

/*
** CAPI3REF: Destroy a snapshot
................................................................................
** ^The [sqlite3_snapshot_free(P)] interface destroys [sqlite3_snapshot] P.
** The application must eventually free every [sqlite3_snapshot] object
** using this routine to avoid a memory leak.
**
** The [sqlite3_snapshot_free()] interface is only available when the
** SQLITE_ENABLE_SNAPSHOT compile-time option is used.
*/
SQLITE_API SQLITE_EXPERIMENTAL void SQLITE_APICALL sqlite3_snapshot_free(sqlite3_snapshot*);

/*
** CAPI3REF: Compare the ages of two snapshot handles.
** EXPERIMENTAL
**
** The sqlite3_snapshot_cmp(P1, P2) interface is used to compare the ages
** of two valid snapshot handles. 
................................................................................
** wal file was last deleted, the value returned by this function 
** is undefined.
**
** Otherwise, this API returns a negative value if P1 refers to an older
** snapshot than P2, zero if the two handles refer to the same database
** snapshot, and a positive value if P1 is a newer snapshot than P2.
*/
SQLITE_API SQLITE_EXPERIMENTAL int SQLITE_APICALL sqlite3_snapshot_cmp(
  sqlite3_snapshot *p1,
  sqlite3_snapshot *p2
);

/*
** Undo the hack that converts floating point types to integer for
** builds on processors without floating point support.
................................................................................

/*
** Register a geometry callback named zGeom that can be used as part of an
** R-Tree geometry query as follows:
**
**   SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zGeom(... params ...)
*/
SQLITE_API int SQLITE_APICALL sqlite3_rtree_geometry_callback(
  sqlite3 *db,
  const char *zGeom,
  int (SQLITE_CALLBACK *xGeom)(sqlite3_rtree_geometry*, int, sqlite3_rtree_dbl*,int*),
  void *pContext
);


/*
** A pointer to a structure of the following type is passed as the first
** argument to callbacks registered using rtree_geometry_callback().
*/
struct sqlite3_rtree_geometry {
  void *pContext;                 /* Copy of pContext passed to s_r_g_c() */
  int nParam;                     /* Size of array aParam[] */
  sqlite3_rtree_dbl *aParam;      /* Parameters passed to SQL geom function */
  void *pUser;                    /* Callback implementation user data */
  void (SQLITE_CALLBACK *xDelUser)(void *);       /* Called by SQLite to clean up pUser */
};

/*
** Register a 2nd-generation geometry callback named zScore that can be 
** used as part of an R-Tree geometry query as follows:
**
**   SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zQueryFunc(... params ...)
*/
SQLITE_API int SQLITE_APICALL sqlite3_rtree_query_callback(
  sqlite3 *db,
  const char *zQueryFunc,
  int (SQLITE_CALLBACK *xQueryFunc)(sqlite3_rtree_query_info*),
  void *pContext,
  void (SQLITE_CALLBACK *xDestructor)(void*)
);


/*
** A pointer to a structure of the following type is passed as the 
** argument to scored geometry callback registered using
** sqlite3_rtree_query_callback().
................................................................................
** sqlite3_rtree_geometry.
*/
struct sqlite3_rtree_query_info {
  void *pContext;                   /* pContext from when function registered */
  int nParam;                       /* Number of function parameters */
  sqlite3_rtree_dbl *aParam;        /* value of function parameters */
  void *pUser;                      /* callback can use this, if desired */
  void (SQLITE_CALLBACK *xDelUser)(void*);          /* function to free pUser */
  sqlite3_rtree_dbl *aCoord;        /* Coordinates of node or entry to check */
  unsigned int *anQueue;            /* Number of pending entries in the queue */
  int nCoord;                       /* Number of coordinates */
  int iLevel;                       /* Level of current node or entry */
  int mxLevel;                      /* The largest iLevel value in the tree */
  sqlite3_int64 iRowid;             /* Rowid for current entry */
  sqlite3_rtree_dbl rParentScore;   /* Score of parent node */
................................................................................
  const char *zTab                /* Table name */
);

/*
** CAPI3REF: Set a table filter on a Session Object.
**
** The second argument (xFilter) is the "filter callback". For changes to rows 
** in tables that are not attached to the Session oject, the filter is called
** to determine whether changes to the table's rows should be tracked or not. 
** If xFilter returns 0, changes is not tracked. Note that once a table is 
** attached, xFilter will not be called again.
*/
void sqlite3session_table_filter(
  sqlite3_session *pSession,      /* Session object */
  int(SQLITE_CALLBACK *xFilter)(
    void *pCtx,                   /* Copy of third arg to _filter_table() */
    const char *zTab              /* Table name */
  ),
  void *pCtx                      /* First argument passed to xFilter */
);

/*
................................................................................
** destroyed.
**
** Assuming the changeset blob was created by one of the
** [sqlite3session_changeset()], [sqlite3changeset_concat()] or
** [sqlite3changeset_invert()] functions, all changes within the changeset 
** that apply to a single table are grouped together. This means that when 
** an application iterates through a changeset using an iterator created by 
** this function, all changes that relate to a single table are visted 
** consecutively. There is no chance that the iterator will visit a change 
** the applies to table X, then one for table Y, and then later on visit 
** another change for table X.
*/
int sqlite3changeset_start(
  sqlite3_changeset_iter **pp,    /* OUT: New changeset iterator handle */
  int nChangeset,                 /* Size of changeset blob in bytes */
................................................................................
** This function is used to find which columns comprise the PRIMARY KEY of
** the table modified by the change that iterator pIter currently points to.
** If successful, *pabPK is set to point to an array of nCol entries, where
** nCol is the number of columns in the table. Elements of *pabPK are set to
** 0x01 if the corresponding column is part of the tables primary key, or
** 0x00 if it is not.
**
** If argumet pnCol is not NULL, then *pnCol is set to the number of columns
** in the table.
**
** If this function is called when the iterator does not point to a valid
** entry, SQLITE_MISUSE is returned and the output variables zeroed. Otherwise,
** SQLITE_OK is returned and the output variables populated as described
** above.
*/
................................................................................
  void *pB,                       /* Pointer to buffer containing changeset B */
  int *pnOut,                     /* OUT: Number of bytes in output changeset */
  void **ppOut                    /* OUT: Buffer containing output changeset */
);


/*
** Changegroup handle.
*/
typedef struct sqlite3_changegroup sqlite3_changegroup;

/*
** CAPI3REF: Combine two or more changesets into a single changeset.
**
** An sqlite3_changegroup object is used to combine two or more changesets
** (or patchsets) into a single changeset (or patchset). A single changegroup
** object may combine changesets or patchsets, but not both. The output is
** always in the same format as the input.
**
** If successful, this function returns SQLITE_OK and populates (SQLITE_CALLBACK *pp) with
** a pointer to a new sqlite3_changegroup object before returning. The caller
** should eventually free the returned object using a call to 
** sqlite3changegroup_delete(). If an error occurs, an SQLite error code
** (i.e. SQLITE_NOMEM) is returned and *pp is set to NULL.
**
** The usual usage pattern for an sqlite3_changegroup object is as follows:
**
................................................................................
** As well as the regular sqlite3changegroup_add() and 
** sqlite3changegroup_output() functions, also available are the streaming
** versions sqlite3changegroup_add_strm() and sqlite3changegroup_output_strm().
*/
int sqlite3changegroup_new(sqlite3_changegroup **pp);

/*


** Add all changes within the changeset (or patchset) in buffer pData (size
** nData bytes) to the changegroup. 
**
** If the buffer contains a patchset, then all prior calls to this function
** on the same changegroup object must also have specified patchsets. Or, if
** the buffer contains a changeset, so must have the earlier calls to this
** function. Otherwise, SQLITE_ERROR is returned and no changes are added
................................................................................
** to the changegroup.
**
** Rows within the changeset and changegroup are identified by the values in
** their PRIMARY KEY columns. A change in the changeset is considered to
** apply to the same row as a change already present in the changegroup if
** the two rows have the same primary key.
**
** Changes to rows that that do not already appear in the changegroup are
** simply copied into it. Or, if both the new changeset and the changegroup
** contain changes that apply to a single row, the final contents of the
** changegroup depends on the type of each change, as follows:
**
** <table border=1 style="margin-left:8ex;margin-right:8ex">
**   <tr><th style="white-space:pre">Existing Change  </th>
**       <th style="white-space:pre">New Change       </th>
................................................................................
** final contents of the changegroup is undefined.
**
** If no error occurs, SQLITE_OK is returned.
*/
int sqlite3changegroup_add(sqlite3_changegroup*, int nData, void *pData);

/*


** Obtain a buffer containing a changeset (or patchset) representing the
** current contents of the changegroup. If the inputs to the changegroup
** were themselves changesets, the output is a changeset. Or, if the
** inputs were patchsets, the output is also a patchset.
**
** As with the output of the sqlite3session_changeset() and
** sqlite3session_patchset() functions, all changes related to a single
................................................................................
** in the same order as for the very first changeset added to the changegroup.
** If the second or subsequent changesets added to the changegroup contain
** changes for tables that do not appear in the first changeset, they are
** appended onto the end of the output changeset, again in the order in
** which they are first encountered.
**
** If an error occurs, an SQLite error code is returned and the output
** variables (SQLITE_CALLBACK *pnData) and (*ppData) are set to 0. Otherwise, SQLITE_OK
** is returned and the output variables are set to the size of and a 
** pointer to the output buffer, respectively. In this case it is the
** responsibility of the caller to eventually free the buffer using a
** call to sqlite3_free().
*/
int sqlite3changegroup_output(
  sqlite3_changegroup*,
  int *pnData,                    /* OUT: Size of output buffer in bytes */
  void **ppData                   /* OUT: Pointer to output buffer */
);

/*
** Delete a changegroup object.
*/
void sqlite3changegroup_delete(sqlite3_changegroup*);

/*
** CAPI3REF: Apply A Changeset To A Database
**
** Apply a changeset to a database. This function attempts to update the
................................................................................
** rolled back, restoring the target database to its original state, and an 
** SQLite error code returned.
*/
int sqlite3changeset_apply(
  sqlite3 *db,                    /* Apply change to "main" db of this handle */
  int nChangeset,                 /* Size of changeset in bytes */
  void *pChangeset,               /* Changeset blob */
  int(SQLITE_CALLBACK *xFilter)(
    void *pCtx,                   /* Copy of sixth arg to _apply() */
    const char *zTab              /* Table name */
  ),
  int(SQLITE_CALLBACK *xConflict)(
    void *pCtx,                   /* Copy of sixth arg to _apply() */
    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
    sqlite3_changeset_iter *p     /* Handle describing change and conflict */
  ),
  void *pCtx                      /* First argument passed to xConflict */
);

................................................................................
**  &nbsp;     int nChangeset,
**  &nbsp;     void *pChangeset,
**  </pre>
**
** Is replaced by:
**
**  <pre>
**  &nbsp;     int (SQLITE_CALLBACK *xInput)(void *pIn, void *pData, int *pnData),
**  &nbsp;     void *pIn,
**  </pre>
**
** Each time the xInput callback is invoked by the sessions module, the first
** argument passed is a copy of the supplied pIn context pointer. The second 
** argument, pData, points to a buffer (SQLITE_CALLBACK *pnData) bytes in size. Assuming no 
** error occurs the xInput method should copy up to (SQLITE_CALLBACK *pnData) bytes of data 
** into the buffer and set (SQLITE_CALLBACK *pnData) to the actual number of bytes copied 
** before returning SQLITE_OK. If the input is completely exhausted, (SQLITE_CALLBACK *pnData) 
** should be set to zero to indicate this. Or, if an error occurs, an SQLite 
** error code should be returned. In all cases, if an xInput callback returns
** an error, all processing is abandoned and the streaming API function
** returns a copy of the error code to the caller.
**
** In the case of sqlite3changeset_start_strm(), the xInput callback may be
** invoked by the sessions module at any point during the lifetime of the
................................................................................
**  &nbsp;     int *pnChangeset,
**  &nbsp;     void **ppChangeset,
**  </pre>
**
** Is replaced by:
**
**  <pre>
**  &nbsp;     int (SQLITE_CALLBACK *xOutput)(void *pOut, const void *pData, int nData),
**  &nbsp;     void *pOut
**  </pre>
**
** The xOutput callback is invoked zero or more times to return data to
** the application. The first parameter passed to each call is a copy of the
** pOut pointer supplied by the application. The second parameter, pData,
** points to a buffer nData bytes in size containing the chunk of output
................................................................................
**
** The sessions module never invokes an xOutput callback with the third 
** parameter set to a value less than or equal to zero. Other than this,
** no guarantees are made as to the size of the chunks of data returned.
*/
int sqlite3changeset_apply_strm(
  sqlite3 *db,                    /* Apply change to "main" db of this handle */
  int (SQLITE_CALLBACK *xInput)(void *pIn, void *pData, int *pnData), /* Input function */
  void *pIn,                                          /* First arg for xInput */
  int(SQLITE_CALLBACK *xFilter)(
    void *pCtx,                   /* Copy of sixth arg to _apply() */
    const char *zTab              /* Table name */
  ),
  int(SQLITE_CALLBACK *xConflict)(
    void *pCtx,                   /* Copy of sixth arg to _apply() */
    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
    sqlite3_changeset_iter *p     /* Handle describing change and conflict */
  ),
  void *pCtx                      /* First argument passed to xConflict */
);
int sqlite3changeset_concat_strm(
  int (SQLITE_CALLBACK *xInputA)(void *pIn, void *pData, int *pnData),
  void *pInA,
  int (SQLITE_CALLBACK *xInputB)(void *pIn, void *pData, int *pnData),
  void *pInB,
  int (SQLITE_CALLBACK *xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
);
int sqlite3changeset_invert_strm(
  int (SQLITE_CALLBACK *xInput)(void *pIn, void *pData, int *pnData),
  void *pIn,
  int (SQLITE_CALLBACK *xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
);
int sqlite3changeset_start_strm(
  sqlite3_changeset_iter **pp,
  int (SQLITE_CALLBACK *xInput)(void *pIn, void *pData, int *pnData),
  void *pIn
);
int sqlite3session_changeset_strm(
  sqlite3_session *pSession,
  int (SQLITE_CALLBACK *xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
);
int sqlite3session_patchset_strm(
  sqlite3_session *pSession,
  int (SQLITE_CALLBACK *xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
);
int sqlite3changegroup_add_strm(sqlite3_changegroup*, 
    int (SQLITE_CALLBACK *xInput)(void *pIn, void *pData, int *pnData),
    void *pIn
);
int sqlite3changegroup_output_strm(sqlite3_changegroup*,
    int (SQLITE_CALLBACK *xOutput)(void *pOut, const void *pData, int nData), 
    void *pOut
);


/*
** Make sure we can call this stuff from C++.
*/
................................................................................
** the sqlite3_module.xFindFunction() method.
*/

typedef struct Fts5ExtensionApi Fts5ExtensionApi;
typedef struct Fts5Context Fts5Context;
typedef struct Fts5PhraseIter Fts5PhraseIter;

typedef void (SQLITE_CALLBACK *fts5_extension_function)(
  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
  Fts5Context *pFts,              /* First arg to pass to pApi functions */
  sqlite3_context *pCtx,          /* Context for returning result/error */
  int nVal,                       /* Number of values in apVal[] array */
  sqlite3_value **apVal           /* Array of trailing arguments */
);

................................................................................
**   returned.
**
**   This function may be quite inefficient if used with an FTS5 table
**   created with the "columnsize=0" option.
**
** xColumnText:
**   This function attempts to retrieve the text of column iCol of the
**   current document. If successful, (SQLITE_CALLBACK *pz) is set to point to a buffer
**   containing the text in utf-8 encoding, (SQLITE_CALLBACK *pn) is set to the size in bytes
**   (not characters) of the buffer and SQLITE_OK is returned. Otherwise,
**   if an error occurs, an SQLite error code is returned and the final values
**   of (SQLITE_CALLBACK *pz) and (*pn) are undefined.
**
** xPhraseCount:
**   Returns the number of phrases in the current query expression.
**
** xPhraseSize:
**   Returns the number of tokens in phrase iPhrase of the query. Phrases
**   are numbered starting from zero.
................................................................................
**
**
** xRowCount(pFts5, pnRow)
**
**   This function is used to retrieve the total number of rows in the table.
**   In other words, the same value that would be returned by:
**
**        SELECT count(SQLITE_CALLBACK *) FROM ftstable;
**
** xPhraseFirst()
**   This function is used, along with type Fts5PhraseIter and the xPhraseNext
**   method, to iterate through all instances of a single query phrase within
**   the current row. This is the same information as is accessible via the
**   xInstCount/xInst APIs. While the xInstCount/xInst APIs are more convenient
**   to use, this API may be faster under some circumstances. To iterate 
................................................................................
**
** xPhraseNextColumn()
**   See xPhraseFirstColumn above.
*/
struct Fts5ExtensionApi {
  int iVersion;                   /* Currently always set to 3 */

  void *(SQLITE_CALLBACK *xUserData)(Fts5Context*);

  int (SQLITE_CALLBACK *xColumnCount)(Fts5Context*);
  int (SQLITE_CALLBACK *xRowCount)(Fts5Context*, sqlite3_int64 *pnRow);
  int (SQLITE_CALLBACK *xColumnTotalSize)(Fts5Context*, int iCol, sqlite3_int64 *pnToken);

  int (SQLITE_CALLBACK *xTokenize)(Fts5Context*, 
    const char *pText, int nText, /* Text to tokenize */
    void *pCtx,                   /* Context passed to xToken() */
    int (SQLITE_CALLBACK *xToken)(void*, int, const char*, int, int, int)       /* Callback */
  );

  int (SQLITE_CALLBACK *xPhraseCount)(Fts5Context*);
  int (SQLITE_CALLBACK *xPhraseSize)(Fts5Context*, int iPhrase);

  int (SQLITE_CALLBACK *xInstCount)(Fts5Context*, int *pnInst);
  int (SQLITE_CALLBACK *xInst)(Fts5Context*, int iIdx, int *piPhrase, int *piCol, int *piOff);

  sqlite3_int64 (SQLITE_CALLBACK *xRowid)(Fts5Context*);
  int (SQLITE_CALLBACK *xColumnText)(Fts5Context*, int iCol, const char **pz, int *pn);
  int (SQLITE_CALLBACK *xColumnSize)(Fts5Context*, int iCol, int *pnToken);

  int (SQLITE_CALLBACK *xQueryPhrase)(Fts5Context*, int iPhrase, void *pUserData,
    int(SQLITE_CALLBACK *)(const Fts5ExtensionApi*,Fts5Context*,void*)
  );
  int (SQLITE_CALLBACK *xSetAuxdata)(Fts5Context*, void *pAux, void(*xDelete)(void*));
  void *(SQLITE_CALLBACK *xGetAuxdata)(Fts5Context*, int bClear);

  int (SQLITE_CALLBACK *xPhraseFirst)(Fts5Context*, int iPhrase, Fts5PhraseIter*, int*, int*);
  void (SQLITE_CALLBACK *xPhraseNext)(Fts5Context*, Fts5PhraseIter*, int *piCol, int *piOff);

  int (SQLITE_CALLBACK *xPhraseFirstColumn)(Fts5Context*, int iPhrase, Fts5PhraseIter*, int*);
  void (SQLITE_CALLBACK *xPhraseNextColumn)(Fts5Context*, Fts5PhraseIter*, int *piCol);
};

/* 
** CUSTOM AUXILIARY FUNCTIONS
*************************************************************************/

/*************************************************************************
................................................................................
** Applications may also register custom tokenizer types. A tokenizer 
** is registered by providing fts5 with a populated instance of the 
** following structure. All structure methods must be defined, setting
** any member of the fts5_tokenizer struct to NULL leads to undefined
** behaviour. The structure methods are expected to function as follows:
**
** xCreate:
**   This function is used to allocate and inititalize a tokenizer instance.
**   A tokenizer instance is required to actually tokenize text.
**
**   The first argument passed to this function is a copy of the (void*)
**   pointer provided by the application when the fts5_tokenizer object
**   was registered with FTS5 (the third argument to xCreateTokenizer()). 
**   The second and third arguments are an array of nul-terminated strings
**   containing the tokenizer arguments, if any, specified following the
**   tokenizer name as part of the CREATE VIRTUAL TABLE statement used
**   to create the FTS5 table.
**
**   The final argument is an output variable. If successful, (SQLITE_CALLBACK *ppOut) 
**   should be set to point to the new tokenizer handle and SQLITE_OK
**   returned. If an error occurs, some value other than SQLITE_OK should
**   be returned. In this case, fts5 assumes that the final value of *ppOut 
**   is undefined.
**
** xDelete:
**   This function is invoked to delete a tokenizer handle previously
................................................................................
**   provide synonyms when tokenizing document text (method (2)) or query
**   text (method (3)), not both. Doing so will not cause any errors, but is
**   inefficient.
*/
typedef struct Fts5Tokenizer Fts5Tokenizer;
typedef struct fts5_tokenizer fts5_tokenizer;
struct fts5_tokenizer {
  int (SQLITE_CALLBACK *xCreate)(void*, const char **azArg, int nArg, Fts5Tokenizer **ppOut);
  void (SQLITE_CALLBACK *xDelete)(Fts5Tokenizer*);
  int (SQLITE_CALLBACK *xTokenize)(Fts5Tokenizer*, 
      void *pCtx,
      int flags,            /* Mask of FTS5_TOKENIZE_* flags */
      const char *pText, int nText, 
      int (SQLITE_CALLBACK *xToken)(
        void *pCtx,         /* Copy of 2nd argument to xTokenize() */
        int tflags,         /* Mask of FTS5_TOKEN_* flags */
        const char *pToken, /* Pointer to buffer containing token */
        int nToken,         /* Size of token in bytes */
        int iStart,         /* Byte offset of token within input text */
        int iEnd            /* Byte offset of end of token within input text */
      )
................................................................................
** FTS5 EXTENSION REGISTRATION API
*/
typedef struct fts5_api fts5_api;
struct fts5_api {
  int iVersion;                   /* Currently always set to 2 */

  /* Create a new tokenizer */
  int (SQLITE_CALLBACK *xCreateTokenizer)(
    fts5_api *pApi,
    const char *zName,
    void *pContext,
    fts5_tokenizer *pTokenizer,
    void (SQLITE_CALLBACK *xDestroy)(void*)
  );

  /* Find an existing tokenizer */
  int (SQLITE_CALLBACK *xFindTokenizer)(
    fts5_api *pApi,
    const char *zName,
    void **ppContext,
    fts5_tokenizer *pTokenizer
  );

  /* Create a new auxiliary function */
  int (SQLITE_CALLBACK *xCreateFunction)(
    fts5_api *pApi,
    const char *zName,
    void *pContext,
    fts5_extension_function xFunction,
    void (SQLITE_CALLBACK *xDestroy)(void*)
  );
};

/*
** END OF REGISTRATION API
*************************************************************************/

#if 0
}  /* end of the 'extern "C"' block */
#endif

#endif /* _FTS5_H */


/******** End of fts5.h *********/

/************** End of sqlite3.h *********************************************/
/************** Continuing where we left off in sqliteInt.h ******************/

/*
................................................................................
#define TK_USING                          125
#define TK_ORDER                          126
#define TK_GROUP                          127
#define TK_HAVING                         128
#define TK_LIMIT                          129
#define TK_WHERE                          130
#define TK_INTO                           131
#define TK_INTEGER                        132
#define TK_FLOAT                          133
#define TK_BLOB                           134

#define TK_VARIABLE                       135
#define TK_CASE                           136
#define TK_WHEN                           137
#define TK_THEN                           138
#define TK_ELSE                           139
#define TK_INDEX                          140
#define TK_ALTER                          141
................................................................................
#define TK_FUNCTION                       151
#define TK_COLUMN                         152
#define TK_AGG_FUNCTION                   153
#define TK_AGG_COLUMN                     154
#define TK_UMINUS                         155
#define TK_UPLUS                          156
#define TK_REGISTER                       157


#define TK_ASTERISK                       158
#define TK_SPAN                           159
#define TK_SPACE                          160
#define TK_ILLEGAL                        161

/* The token codes above must all fit in 8 bits */
#define TKFLG_MASK           0xff  

/* Flags that can be added to a token code when it is not
** being stored in a u8: */
#define TKFLG_DONTFOLD       0x100  /* Omit constant folding optimizations */
................................................................................
** In the usual case where WSD is supported, the SQLITE_WSD and GLOBAL
** macros become no-ops and have zero performance impact.
*/
#ifdef SQLITE_OMIT_WSD
  #define SQLITE_WSD const
  #define GLOBAL(t,v) (*(t*)sqlite3_wsd_find((void*)&(v), sizeof(v)))
  #define sqlite3GlobalConfig GLOBAL(struct Sqlite3Config, sqlite3Config)
SQLITE_API int SQLITE_APICALL sqlite3_wsd_init(int N, int J);
SQLITE_API void *SQLITE_APICALL sqlite3_wsd_find(void *K, int L);
#else
  #define SQLITE_WSD
  #define GLOBAL(t,v) v
  #define sqlite3GlobalConfig sqlite3Config
#endif

/*
................................................................................
SQLITE_PRIVATE int sqlite3BtreeBeginStmt(Btree*,int);
SQLITE_PRIVATE int sqlite3BtreeCreateTable(Btree*, int*, int flags);
SQLITE_PRIVATE int sqlite3BtreeIsInTrans(Btree*);
SQLITE_PRIVATE int sqlite3BtreeIsInReadTrans(Btree*);
SQLITE_PRIVATE int sqlite3BtreeIsInBackup(Btree*);
SQLITE_PRIVATE void *sqlite3BtreeSchema(Btree *, int, void(*)(void *));
SQLITE_PRIVATE int sqlite3BtreeSchemaLocked(Btree *pBtree);

SQLITE_PRIVATE int sqlite3BtreeLockTable(Btree *pBtree, int iTab, u8 isWriteLock);

SQLITE_PRIVATE int sqlite3BtreeSavepoint(Btree *, int, int);

SQLITE_PRIVATE const char *sqlite3BtreeGetFilename(Btree *);
SQLITE_PRIVATE const char *sqlite3BtreeGetJournalname(Btree *);
SQLITE_PRIVATE int sqlite3BtreeCopyFile(Btree *, Btree *);

SQLITE_PRIVATE int sqlite3BtreeIncrVacuum(Btree *);
................................................................................
SQLITE_PRIVATE const void *sqlite3BtreePayloadFetch(BtCursor*, u32 *pAmt);
SQLITE_PRIVATE u32 sqlite3BtreePayloadSize(BtCursor*);
SQLITE_PRIVATE int sqlite3BtreeData(BtCursor*, u32 offset, u32 amt, void*);

SQLITE_PRIVATE char *sqlite3BtreeIntegrityCheck(Btree*, int *aRoot, int nRoot, int, int*);
SQLITE_PRIVATE struct Pager *sqlite3BtreePager(Btree*);


SQLITE_PRIVATE int sqlite3BtreePutData(BtCursor*, u32 offset, u32 amt, void*);
SQLITE_PRIVATE void sqlite3BtreeIncrblobCursor(BtCursor *);

SQLITE_PRIVATE void sqlite3BtreeClearCursor(BtCursor *);
SQLITE_PRIVATE int sqlite3BtreeSetVersion(Btree *pBt, int iVersion);
SQLITE_PRIVATE int sqlite3BtreeCursorHasHint(BtCursor*, unsigned int mask);
SQLITE_PRIVATE int sqlite3BtreeIsReadonly(Btree *pBt);
SQLITE_PRIVATE int sqlite3HeaderSizeBtree(void);

#ifndef NDEBUG
................................................................................
** A sub-routine used to implement a trigger program.
*/
struct SubProgram {
  VdbeOp *aOp;                  /* Array of opcodes for sub-program */
  int nOp;                      /* Elements in aOp[] */
  int nMem;                     /* Number of memory cells required */
  int nCsr;                     /* Number of cursors required */
  int nOnce;                    /* Number of OP_Once instructions */
  void *token;                  /* id that may be used to recursive triggers */
  SubProgram *pNext;            /* Next sub-program already visited */
};

/*
** A smaller version of VdbeOp used for the VdbeAddOpList() function because
** it takes up less space.
................................................................................
#define OP_NoConflict     29 /* synopsis: key=r[P3@P4]                     */
#define OP_NotFound       30 /* synopsis: key=r[P3@P4]                     */
#define OP_Found          31 /* synopsis: key=r[P3@P4]                     */
#define OP_SeekRowid      32 /* synopsis: intkey=r[P3]                     */
#define OP_NotExists      33 /* synopsis: intkey=r[P3]                     */
#define OP_IsNull         34 /* same as TK_ISNULL, synopsis: if r[P1]==NULL goto P2 */
#define OP_NotNull        35 /* same as TK_NOTNULL, synopsis: if r[P1]!=NULL goto P2 */
#define OP_Ne             36 /* same as TK_NE, synopsis: if r[P1]!=r[P3] goto P2 */
#define OP_Eq             37 /* same as TK_EQ, synopsis: if r[P1]==r[P3] goto P2 */
#define OP_Gt             38 /* same as TK_GT, synopsis: if r[P1]>r[P3] goto P2 */
#define OP_Le             39 /* same as TK_LE, synopsis: if r[P1]<=r[P3] goto P2 */
#define OP_Lt             40 /* same as TK_LT, synopsis: if r[P1]<r[P3] goto P2 */
#define OP_Ge             41 /* same as TK_GE, synopsis: if r[P1]>=r[P3] goto P2 */
#define OP_Last           42
#define OP_BitAnd         43 /* same as TK_BITAND, synopsis: r[P3]=r[P1]&r[P2] */
#define OP_BitOr          44 /* same as TK_BITOR, synopsis: r[P3]=r[P1]|r[P2] */
#define OP_ShiftLeft      45 /* same as TK_LSHIFT, synopsis: r[P3]=r[P2]<<r[P1] */
#define OP_ShiftRight     46 /* same as TK_RSHIFT, synopsis: r[P3]=r[P2]>>r[P1] */
#define OP_Add            47 /* same as TK_PLUS, synopsis: r[P3]=r[P1]+r[P2] */
#define OP_Subtract       48 /* same as TK_MINUS, synopsis: r[P3]=r[P2]-r[P1] */
#define OP_Multiply       49 /* same as TK_STAR, synopsis: r[P3]=r[P1]*r[P2] */
#define OP_Divide         50 /* same as TK_SLASH, synopsis: r[P3]=r[P2]/r[P1] */
#define OP_Remainder      51 /* same as TK_REM, synopsis: r[P3]=r[P2]%r[P1] */
#define OP_Concat         52 /* same as TK_CONCAT, synopsis: r[P3]=r[P2]+r[P1] */
#define OP_SorterSort     53
#define OP_BitNot         54 /* same as TK_BITNOT, synopsis: r[P1]= ~r[P1] */

#define OP_Sort           55
#define OP_Rewind         56
#define OP_IdxLE          57 /* synopsis: key=r[P3@P4]                     */
#define OP_IdxGT          58 /* synopsis: key=r[P3@P4]                     */
#define OP_IdxLT          59 /* synopsis: key=r[P3@P4]                     */
#define OP_IdxGE          60 /* synopsis: key=r[P3@P4]                     */
#define OP_RowSetRead     61 /* synopsis: r[P3]=rowset(P1)                 */
#define OP_RowSetTest     62 /* synopsis: if r[P3] in rowset(P1) goto P2   */
#define OP_Program        63
#define OP_FkIfZero       64 /* synopsis: if fkctr[P1]==0 goto P2          */
#define OP_IfPos          65 /* synopsis: if r[P1]>0 then r[P1]-=P3, goto P2 */
#define OP_IfNotZero      66 /* synopsis: if r[P1]!=0 then r[P1]-=P3, goto P2 */
#define OP_DecrJumpZero   67 /* synopsis: if (--r[P1])==0 goto P2          */
#define OP_IncrVacuum     68
#define OP_VNext          69
#define OP_Init           70 /* synopsis: Start at P2                      */
#define OP_Return         71
#define OP_EndCoroutine   72
#define OP_HaltIfNull     73 /* synopsis: if r[P3]=null halt               */
#define OP_Halt           74
#define OP_Integer        75 /* synopsis: r[P2]=P1                         */
#define OP_Int64          76 /* synopsis: r[P2]=P4                         */
#define OP_String         77 /* synopsis: r[P2]='P4' (len=P1)              */
#define OP_Null           78 /* synopsis: r[P2..P3]=NULL                   */
#define OP_SoftNull       79 /* synopsis: r[P1]=NULL                       */
#define OP_Blob           80 /* synopsis: r[P2]=P4 (len=P1)                */
#define OP_Variable       81 /* synopsis: r[P2]=parameter(P1,P4)           */
#define OP_Move           82 /* synopsis: r[P2@P3]=r[P1@P3]                */
#define OP_Copy           83 /* synopsis: r[P2@P3+1]=r[P1@P3+1]            */
#define OP_SCopy          84 /* synopsis: r[P2]=r[P1]                      */
#define OP_IntCopy        85 /* synopsis: r[P2]=r[P1]                      */
#define OP_ResultRow      86 /* synopsis: output=r[P1@P2]                  */
#define OP_CollSeq        87
#define OP_Function0      88 /* synopsis: r[P3]=func(r[P2@P5])             */
#define OP_Function       89 /* synopsis: r[P3]=func(r[P2@P5])             */
#define OP_AddImm         90 /* synopsis: r[P1]=r[P1]+P2                   */
#define OP_RealAffinity   91
#define OP_Cast           92 /* synopsis: affinity(r[P1])                  */
#define OP_Permutation    93
#define OP_Compare        94 /* synopsis: r[P1@P3] <-> r[P2@P3]            */
#define OP_Column         95 /* synopsis: r[P3]=PX                         */
#define OP_Affinity       96 /* synopsis: affinity(r[P1@P2])               */
#define OP_String8        97 /* same as TK_STRING, synopsis: r[P2]='P4'    */

#define OP_MakeRecord     98 /* synopsis: r[P3]=mkrec(r[P1@P2])            */
#define OP_Count          99 /* synopsis: r[P2]=count()                    */
#define OP_ReadCookie    100
#define OP_SetCookie     101
#define OP_ReopenIdx     102 /* synopsis: root=P2 iDb=P3                   */
#define OP_OpenRead      103 /* synopsis: root=P2 iDb=P3                   */
#define OP_OpenWrite     104 /* synopsis: root=P2 iDb=P3                   */
#define OP_OpenAutoindex 105 /* synopsis: nColumn=P2                       */
#define OP_OpenEphemeral 106 /* synopsis: nColumn=P2                       */
#define OP_SorterOpen    107
#define OP_SequenceTest  108 /* synopsis: if( cursor[P1].ctr++ ) pc = P2   */
#define OP_OpenPseudo    109 /* synopsis: P3 columns in r[P2]              */
#define OP_Close         110
#define OP_ColumnsUsed   111
#define OP_Sequence      112 /* synopsis: r[P2]=cursor[P1].ctr++           */
#define OP_NewRowid      113 /* synopsis: r[P2]=rowid                      */
#define OP_Insert        114 /* synopsis: intkey=r[P3] data=r[P2]          */
#define OP_InsertInt     115 /* synopsis: intkey=P3 data=r[P2]             */
#define OP_Delete        116
#define OP_ResetCount    117
#define OP_SorterCompare 118 /* synopsis: if key(P1)!=trim(r[P3],P4) goto P2 */
#define OP_SorterData    119 /* synopsis: r[P2]=data                       */
#define OP_RowKey        120 /* synopsis: r[P2]=key                        */
#define OP_RowData       121 /* synopsis: r[P2]=data                       */
#define OP_Rowid         122 /* synopsis: r[P2]=rowid                      */
#define OP_NullRow       123
#define OP_SorterInsert  124
#define OP_IdxInsert     125 /* synopsis: key=r[P2]                        */
#define OP_IdxDelete     126 /* synopsis: key=r[P2@P3]                     */
#define OP_Seek          127 /* synopsis: Move P3 to P1.rowid              */
#define OP_IdxRowid      128 /* synopsis: r[P2]=rowid                      */
#define OP_Destroy       129
#define OP_Clear         130

#define OP_ResetSorter   131
#define OP_CreateIndex   132 /* synopsis: r[P2]=root iDb=P1                */
#define OP_Real          133 /* same as TK_FLOAT, synopsis: r[P2]=P4       */
#define OP_CreateTable   134 /* synopsis: r[P2]=root iDb=P1                */
#define OP_ParseSchema   135
#define OP_LoadAnalysis  136
#define OP_DropTable     137
#define OP_DropIndex     138
#define OP_DropTrigger   139
#define OP_IntegrityCk   140
#define OP_RowSetAdd     141 /* synopsis: rowset(P1)=r[P2]                 */
#define OP_Param         142
#define OP_FkCounter     143 /* synopsis: fkctr[P1]+=P2                    */
#define OP_MemMax        144 /* synopsis: r[P1]=max(r[P1],r[P2])           */
#define OP_OffsetLimit   145 /* synopsis: if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1) */
#define OP_AggStep0      146 /* synopsis: accum=r[P3] step(r[P2@P5])       */
#define OP_AggStep       147 /* synopsis: accum=r[P3] step(r[P2@P5])       */
#define OP_AggFinal      148 /* synopsis: accum=r[P1] N=P2                 */
#define OP_Expire        149
#define OP_TableLock     150 /* synopsis: iDb=P1 root=P2 write=P3          */
#define OP_VBegin        151
#define OP_VCreate       152
#define OP_VDestroy      153
#define OP_VOpen         154
#define OP_VColumn       155 /* synopsis: r[P3]=vcolumn(P2)                */
#define OP_VRename       156
#define OP_Pagecount     157
#define OP_MaxPgcnt      158
#define OP_CursorHint    159
#define OP_Noop          160
#define OP_Explain       161

/* Properties such as "out2" or "jump" that are specified in
** comments following the "case" for each opcode in the vdbe.c
** are encoded into bitvectors as follows:
*/
#define OPFLG_JUMP        0x01  /* jump:  P2 holds jmp target */
#define OPFLG_IN1         0x02  /* in1:   P1 is an input */
................................................................................
/*   0 */ 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01,\
/*   8 */ 0x00, 0x10, 0x00, 0x01, 0x00, 0x01, 0x01, 0x01,\
/*  16 */ 0x03, 0x03, 0x01, 0x12, 0x01, 0x03, 0x03, 0x09,\
/*  24 */ 0x09, 0x09, 0x09, 0x26, 0x26, 0x09, 0x09, 0x09,\
/*  32 */ 0x09, 0x09, 0x03, 0x03, 0x0b, 0x0b, 0x0b, 0x0b,\
/*  40 */ 0x0b, 0x0b, 0x01, 0x26, 0x26, 0x26, 0x26, 0x26,\
/*  48 */ 0x26, 0x26, 0x26, 0x26, 0x26, 0x01, 0x12, 0x01,\
/*  56 */ 0x01, 0x01, 0x01, 0x01, 0x01, 0x23, 0x0b, 0x01,\
/*  64 */ 0x01, 0x03, 0x03, 0x03, 0x01, 0x01, 0x01, 0x02,\
/*  72 */ 0x02, 0x08, 0x00, 0x10, 0x10, 0x10, 0x10, 0x00,\
/*  80 */ 0x10, 0x10, 0x00, 0x00, 0x10, 0x10, 0x00, 0x00,\
/*  88 */ 0x00, 0x00, 0x02, 0x02, 0x02, 0x00, 0x00, 0x00,\
/*  96 */ 0x00, 0x10, 0x00, 0x10, 0x10, 0x00, 0x00, 0x00,\
/* 104 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
/* 112 */ 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
/* 120 */ 0x00, 0x00, 0x10, 0x00, 0x04, 0x04, 0x00, 0x00,\
/* 128 */ 0x10, 0x10, 0x00, 0x00, 0x10, 0x10, 0x10, 0x00,\
/* 136 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x10, 0x00,\
/* 144 */ 0x04, 0x1a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
/* 152 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x10, 0x00,\
/* 160 */ 0x00, 0x00,}

/* The sqlite3P2Values() routine is able to run faster if it knows
** the value of the largest JUMP opcode.  The smaller the maximum
** JUMP opcode the better, so the mkopcodeh.tcl script that
** generated this include file strives to group all JUMP opcodes
** together near the beginning of the list.
*/
#define SQLITE_MX_JUMP_OPCODE  70  /* Maximum JUMP opcode */

/************** End of opcodes.h *********************************************/
/************** Continuing where we left off in vdbe.h ***********************/

/*
** Prototypes for the VDBE interface.  See comments on the implementation
** for a description of what each of these routines does.
................................................................................
SQLITE_PRIVATE sqlite3_vfs *sqlite3PagerVfs(Pager*);
SQLITE_PRIVATE sqlite3_file *sqlite3PagerFile(Pager*);
SQLITE_PRIVATE sqlite3_file *sqlite3PagerJrnlFile(Pager*);
SQLITE_PRIVATE const char *sqlite3PagerJournalname(Pager*);
SQLITE_PRIVATE void *sqlite3PagerTempSpace(Pager*);
SQLITE_PRIVATE int sqlite3PagerIsMemdb(Pager*);
SQLITE_PRIVATE void sqlite3PagerCacheStat(Pager *, int, int, int *);

SQLITE_PRIVATE int sqlite3SectorSize(sqlite3_file *);

/* Functions used to truncate the database file. */
SQLITE_PRIVATE void sqlite3PagerTruncateImage(Pager*,Pgno);

SQLITE_PRIVATE void sqlite3PagerRekey(DbPage*, Pgno, u16);

................................................................................
** Each database file to be accessed by the system is an instance
** of the following structure.  There are normally two of these structures
** in the sqlite.aDb[] array.  aDb[0] is the main database file and
** aDb[1] is the database file used to hold temporary tables.  Additional
** databases may be attached.
*/
struct Db {
  char *zName;         /* Name of this database */
  Btree *pBt;          /* The B*Tree structure for this database file */
  u8 safety_level;     /* How aggressive at syncing data to disk */
  u8 bSyncSet;         /* True if "PRAGMA synchronous=N" has been run */
  Schema *pSchema;     /* Pointer to database schema (possibly shared) */
};

/*
................................................................................
** changing the affinity.
**
** The SQLITE_NOTNULL flag is a combination of NULLEQ and JUMPIFNULL.
** It causes an assert() to fire if either operand to a comparison
** operator is NULL.  It is added to certain comparison operators to
** prove that the operands are always NOT NULL.
*/

#define SQLITE_JUMPIFNULL   0x10  /* jumps if either operand is NULL */
#define SQLITE_STOREP2      0x20  /* Store result in reg[P2] rather than jump */
#define SQLITE_NULLEQ       0x80  /* NULL=NULL */
#define SQLITE_NOTNULL      0x90  /* Assert that operands are never NULL */

/*
** An object of this type is created for each virtual table present in
................................................................................

#if SQLITE_MAX_EXPR_DEPTH>0
  int nHeight;           /* Height of the tree headed by this node */
#endif
  int iTable;            /* TK_COLUMN: cursor number of table holding column
                         ** TK_REGISTER: register number
                         ** TK_TRIGGER: 1 -> new, 0 -> old
                         ** EP_Unlikely:  134217728 times likelihood */

  ynVar iColumn;         /* TK_COLUMN: column index.  -1 for rowid.
                         ** TK_VARIABLE: variable number (always >= 1). */

  i16 iAgg;              /* Which entry in pAggInfo->aCol[] or ->aFunc[] */
  i16 iRightJoinTable;   /* If EP_FromJoin, the right table of the join */
  u8 op2;                /* TK_REGISTER: original value of Expr.op
                         ** TK_COLUMN: the value of p5 for OP_Column
                         ** TK_AGG_FUNCTION: nesting depth */
  AggInfo *pAggInfo;     /* Used by TK_AGG_COLUMN and TK_AGG_FUNCTION */
  Table *pTab;           /* Table for TK_COLUMN expressions. */
................................................................................
#define EP_MemToken  0x010000 /* Need to sqlite3DbFree() Expr.zToken */
#define EP_NoReduce  0x020000 /* Cannot EXPRDUP_REDUCE this Expr */
#define EP_Unlikely  0x040000 /* unlikely() or likelihood() function */
#define EP_ConstFunc 0x080000 /* A SQLITE_FUNC_CONSTANT or _SLOCHNG function */
#define EP_CanBeNull 0x100000 /* Can be null despite NOT NULL constraint */
#define EP_Subquery  0x200000 /* Tree contains a TK_SELECT operator */
#define EP_Alias     0x400000 /* Is an alias for a result set column */


/*
** Combinations of two or more EP_* flags
*/
#define EP_Propagate (EP_Collate|EP_Subquery) /* Propagate these bits up tree */

/*
................................................................................

/*
** An instance of this object describes where to put of the results of
** a SELECT statement.
*/
struct SelectDest {
  u8 eDest;            /* How to dispose of the results.  On of SRT_* above. */
  char affSdst;        /* Affinity used when eDest==SRT_Set */
  int iSDParm;         /* A parameter used by the eDest disposal method */
  int iSdst;           /* Base register where results are written */
  int nSdst;           /* Number of registers allocated */
  ExprList *pOrderBy;  /* Key columns for SRT_Queue and SRT_DistQueue */
};

/*
................................................................................
  u8 nTempReg;         /* Number of temporary registers in aTempReg[] */
  u8 isMultiWrite;     /* True if statement may modify/insert multiple rows */
  u8 mayAbort;         /* True if statement may throw an ABORT exception */
  u8 hasCompound;      /* Need to invoke convertCompoundSelectToSubquery() */
  u8 okConstFactor;    /* OK to factor out constants */
  u8 disableLookaside; /* Number of times lookaside has been disabled */
  u8 nColCache;        /* Number of entries in aColCache[] */
  int aTempReg[8];     /* Holding area for temporary registers */
  int nRangeReg;       /* Size of the temporary register block */
  int iRangeReg;       /* First register in temporary register block */
  int nErr;            /* Number of errors seen */
  int nTab;            /* Number of previously allocated VDBE cursors */
  int nMem;            /* Number of memory cells used so far */
  int nSet;            /* Number of sets used so far */
  int nOnce;           /* Number of OP_Once instructions so far */
  int nOpAlloc;        /* Number of slots allocated for Vdbe.aOp[] */
  int szOpAlloc;       /* Bytes of memory space allocated for Vdbe.aOp[] */
  int iFixedOp;        /* Never back out opcodes iFixedOp-1 or earlier */
  int ckBase;          /* Base register of data during check constraints */
  int iSelfTab;        /* Table of an index whose exprs are being coded */
  int iCacheLevel;     /* ColCache valid when aColCache[].iLevel<=iCacheLevel */
  int iCacheCnt;       /* Counter used to generate aColCache[].lru values */
  int nLabel;          /* Number of labels used */
  int *aLabel;         /* Space to hold the labels */
  struct yColCache {
    int iTable;           /* Table cursor number */
    i16 iColumn;          /* Table column number */
    u8 tempReg;           /* iReg is a temp register that needs to be freed */
    int iLevel;           /* Nesting level */
    int iReg;             /* Reg with value of this column. 0 means none. */
    int lru;              /* Least recently used entry has the smallest value */
  } aColCache[SQLITE_N_COLCACHE];  /* One for each column cache entry */
  ExprList *pConstExpr;/* Constant expressions */
  Token constraintName;/* Name of the constraint currently being parsed */
  yDbMask writeMask;   /* Start a write transaction on these databases */
  yDbMask cookieMask;  /* Bitmask of schema verified databases */
  int cookieValue[SQLITE_MAX_ATTACHED+2];  /* Values of cookies to verify */
  int regRowid;        /* Register holding rowid of CREATE TABLE entry */
  int regRoot;         /* Register holding root page number for new objects */
  int nMaxArg;         /* Max args passed to user function by sub-program */
#if SELECTTRACE_ENABLED
  int nSelect;         /* Number of SELECT statements seen */
  int nSelectIndent;   /* How far to indent SELECTTRACE() output */
#endif
#ifndef SQLITE_OMIT_SHARED_CACHE
  int nTableLock;        /* Number of locks in aTableLock */
  TableLock *aTableLock; /* Required table locks for shared-cache mode */
#endif
  AutoincInfo *pAinc;  /* Information about AUTOINCREMENT counters */

  /* Information used while coding trigger programs. */
  Parse *pToplevel;    /* Parse structure for main program (or NULL) */
  Table *pTriggerTab;  /* Table triggers are being coded for */
  int addrCrTab;       /* Address of OP_CreateTable opcode on CREATE TABLE */
  u32 nQueryLoop;      /* Est number of iterations of a query (10*log2(N)) */
  u32 oldmask;         /* Mask of old.* columns referenced */
  u32 newmask;         /* Mask of new.* columns referenced */
  u8 eTriggerOp;       /* TK_UPDATE, TK_INSERT or TK_DELETE */
  u8 eOrconf;          /* Default ON CONFLICT policy for trigger steps */
  u8 disableTriggers;  /* True to disable triggers */




















  /************************************************************************
  ** Above is constant between recursions.  Below is reset before and after
  ** each recursion.  The boundary between these two regions is determined
  ** using offsetof(Parse,nVar) so the nVar field must be the first field
  ** in the recursive region.
  ************************************************************************/
................................................................................
  int nzVar;                /* Number of available slots in azVar[] */
  u8 iPkSortOrder;          /* ASC or DESC for INTEGER PRIMARY KEY */
  u8 explain;               /* True if the EXPLAIN flag is found on the query */
#ifndef SQLITE_OMIT_VIRTUALTABLE
  u8 declareVtab;           /* True if inside sqlite3_declare_vtab() */
  int nVtabLock;            /* Number of virtual tables to lock */
#endif
  int nAlias;               /* Number of aliased result set columns */
  int nHeight;              /* Expression tree height of current sub-select */
#ifndef SQLITE_OMIT_EXPLAIN
  int iSelectId;            /* ID of current select for EXPLAIN output */
  int iNextSelectId;        /* Next available select ID for EXPLAIN output */
#endif
  char **azVar;             /* Pointers to names of parameters */
  Vdbe *pReprepare;         /* VM being reprepared (sqlite3Reprepare()) */
  const char *zTail;        /* All SQL text past the last semicolon parsed */
  Table *pNewTable;         /* A table being constructed by CREATE TABLE */
  Trigger *pNewTrigger;     /* Trigger under construct by a CREATE TRIGGER */
  const char *zAuthContext; /* The 6th parameter to db->xAuth callbacks */
  Token sNameToken;         /* Token with unqualified schema object name */
  Token sLastToken;         /* The last token parsed */
#ifndef SQLITE_OMIT_VIRTUALTABLE
  Token sArg;               /* Complete text of a module argument */
  Table **apVtabLock;       /* Pointer to virtual tables needing locking */
#endif
  Table *pZombieTab;        /* List of Table objects to delete after code gen */
  TriggerPrg *pTriggerPrg;  /* Linked list of coded triggers */
  With *pWith;              /* Current WITH clause, or NULL */
  With *pWithToFree;        /* Free this WITH object at the end of the parse */
};









/*
** Return true if currently inside an sqlite3_declare_vtab() call.
*/
#ifdef SQLITE_OMIT_VIRTUALTABLE
  #define IN_DECLARE_VTAB 0
#else
  #define IN_DECLARE_VTAB (pParse->declareVtab)
................................................................................
  void (*xVdbeBranch)(void*,int iSrcLine,u8 eThis,u8 eMx);  /* Callback */
  void *pVdbeBranchArg;                                     /* 1st argument */
#endif
#ifndef SQLITE_OMIT_BUILTIN_TEST
  int (*xTestCallback)(int);        /* Invoked by sqlite3FaultSim() */
#endif
  int bLocaltimeFault;              /* True to fail localtime() calls */

};

/*
** This macro is used inside of assert() statements to indicate that
** the assert is only valid on a well-formed database.  Instead of:
**
**     assert( X );
................................................................................
#endif
#if defined(SQLITE_TEST)
SQLITE_PRIVATE   void *sqlite3TestTextToPtr(const char*);
#endif

#if defined(SQLITE_DEBUG)
SQLITE_PRIVATE   void sqlite3TreeViewExpr(TreeView*, const Expr*, u8);

SQLITE_PRIVATE   void sqlite3TreeViewExprList(TreeView*, const ExprList*, u8, const char*);
SQLITE_PRIVATE   void sqlite3TreeViewSelect(TreeView*, const Select*, u8);
SQLITE_PRIVATE   void sqlite3TreeViewWith(TreeView*, const With*, u8);
#endif


SQLITE_PRIVATE void sqlite3SetString(char **, sqlite3*, const char*);
................................................................................
SQLITE_PRIVATE Expr *sqlite3ExprAlloc(sqlite3*,int,const Token*,int);
SQLITE_PRIVATE Expr *sqlite3Expr(sqlite3*,int,const char*);
SQLITE_PRIVATE void sqlite3ExprAttachSubtrees(sqlite3*,Expr*,Expr*,Expr*);
SQLITE_PRIVATE Expr *sqlite3PExpr(Parse*, int, Expr*, Expr*, const Token*);
SQLITE_PRIVATE void sqlite3PExprAddSelect(Parse*, Expr*, Select*);
SQLITE_PRIVATE Expr *sqlite3ExprAnd(sqlite3*,Expr*, Expr*);
SQLITE_PRIVATE Expr *sqlite3ExprFunction(Parse*,ExprList*, Token*);
SQLITE_PRIVATE void sqlite3ExprAssignVarNumber(Parse*, Expr*);
SQLITE_PRIVATE void sqlite3ExprDelete(sqlite3*, Expr*);
SQLITE_PRIVATE ExprList *sqlite3ExprListAppend(Parse*,ExprList*,Expr*);

SQLITE_PRIVATE void sqlite3ExprListSetSortOrder(ExprList*,int);
SQLITE_PRIVATE void sqlite3ExprListSetName(Parse*,ExprList*,Token*,int);
SQLITE_PRIVATE void sqlite3ExprListSetSpan(Parse*,ExprList*,ExprSpan*);
SQLITE_PRIVATE void sqlite3ExprListDelete(sqlite3*, ExprList*);
SQLITE_PRIVATE u32 sqlite3ExprListFlags(const ExprList*);
SQLITE_PRIVATE int sqlite3Init(sqlite3*, char**);
SQLITE_PRIVATE int sqlite3InitCallback(void*, int, char**, char**);
................................................................................
SQLITE_PRIVATE void sqlite3AddCheckConstraint(Parse*, Expr*);
SQLITE_PRIVATE void sqlite3AddDefaultValue(Parse*,ExprSpan*);
SQLITE_PRIVATE void sqlite3AddCollateType(Parse*, Token*);
SQLITE_PRIVATE void sqlite3EndTable(Parse*,Token*,Token*,u8,Select*);
SQLITE_PRIVATE int sqlite3ParseUri(const char*,const char*,unsigned int*,
                    sqlite3_vfs**,char**,char **);
SQLITE_PRIVATE Btree *sqlite3DbNameToBtree(sqlite3*,const char*);
SQLITE_PRIVATE int sqlite3CodeOnce(Parse *);

#ifdef SQLITE_OMIT_BUILTIN_TEST
# define sqlite3FaultSim(X) SQLITE_OK
#else
SQLITE_PRIVATE   int sqlite3FaultSim(int);
#endif

................................................................................
#define LOCATE_VIEW    0x01
#define LOCATE_NOERR   0x02
SQLITE_PRIVATE Table *sqlite3LocateTable(Parse*,u32 flags,const char*, const char*);
SQLITE_PRIVATE Table *sqlite3LocateTableItem(Parse*,u32 flags,struct SrcList_item *);
SQLITE_PRIVATE Index *sqlite3FindIndex(sqlite3*,const char*, const char*);
SQLITE_PRIVATE void sqlite3UnlinkAndDeleteTable(sqlite3*,int,const char*);
SQLITE_PRIVATE void sqlite3UnlinkAndDeleteIndex(sqlite3*,int,const char*);
SQLITE_PRIVATE void sqlite3Vacuum(Parse*);
SQLITE_PRIVATE int sqlite3RunVacuum(char**, sqlite3*);
SQLITE_PRIVATE char *sqlite3NameFromToken(sqlite3*, Token*);
SQLITE_PRIVATE int sqlite3ExprCompare(Expr*, Expr*, int);
SQLITE_PRIVATE int sqlite3ExprListCompare(ExprList*, ExprList*, int);
SQLITE_PRIVATE int sqlite3ExprImpliesExpr(Expr*, Expr*, int);
SQLITE_PRIVATE void sqlite3ExprAnalyzeAggregates(NameContext*, Expr*);
SQLITE_PRIVATE void sqlite3ExprAnalyzeAggList(NameContext*,ExprList*);
SQLITE_PRIVATE int sqlite3ExprCoveredByIndex(Expr*, int iCur, Index *pIdx);
................................................................................
#define putVarint    sqlite3PutVarint


SQLITE_PRIVATE const char *sqlite3IndexAffinityStr(sqlite3*, Index*);
SQLITE_PRIVATE void sqlite3TableAffinity(Vdbe*, Table*, int);
SQLITE_PRIVATE char sqlite3CompareAffinity(Expr *pExpr, char aff2);
SQLITE_PRIVATE int sqlite3IndexAffinityOk(Expr *pExpr, char idx_affinity);

SQLITE_PRIVATE char sqlite3ExprAffinity(Expr *pExpr);
SQLITE_PRIVATE int sqlite3Atoi64(const char*, i64*, int, u8);
SQLITE_PRIVATE int sqlite3DecOrHexToI64(const char*, i64*);
SQLITE_PRIVATE void sqlite3ErrorWithMsg(sqlite3*, int, const char*,...);
SQLITE_PRIVATE void sqlite3Error(sqlite3*,int);
SQLITE_PRIVATE void sqlite3SystemError(sqlite3*,int);
SQLITE_PRIVATE void *sqlite3HexToBlob(sqlite3*, const char *z, int n);
................................................................................
SQLITE_PRIVATE void sqlite3RootPageMoved(sqlite3*, int, int, int);
SQLITE_PRIVATE void sqlite3Reindex(Parse*, Token*, Token*);
SQLITE_PRIVATE void sqlite3AlterFunctions(void);
SQLITE_PRIVATE void sqlite3AlterRenameTable(Parse*, SrcList*, Token*);
SQLITE_PRIVATE int sqlite3GetToken(const unsigned char *, int *);
SQLITE_PRIVATE void sqlite3NestedParse(Parse*, const char*, ...);
SQLITE_PRIVATE void sqlite3ExpirePreparedStatements(sqlite3*);
SQLITE_PRIVATE int sqlite3CodeSubselect(Parse *, Expr *, int, int);
SQLITE_PRIVATE void sqlite3SelectPrep(Parse*, Select*, NameContext*);
SQLITE_PRIVATE void sqlite3SelectWrongNumTermsError(Parse *pParse, Select *p);
SQLITE_PRIVATE int sqlite3MatchSpanName(const char*, const char*, const char*, const char*);
SQLITE_PRIVATE int sqlite3ResolveExprNames(NameContext*, Expr*);
SQLITE_PRIVATE int sqlite3ResolveExprListNames(NameContext*, ExprList*);
SQLITE_PRIVATE void sqlite3ResolveSelectNames(Parse*, Select*, NameContext*);
SQLITE_PRIVATE void sqlite3ResolveSelfReference(Parse*,Table*,int,Expr*,ExprList*);
................................................................................
SQLITE_PRIVATE char *sqlite3StrAccumFinish(StrAccum*);
SQLITE_PRIVATE void sqlite3StrAccumReset(StrAccum*);
SQLITE_PRIVATE void sqlite3SelectDestInit(SelectDest*,int,int);
SQLITE_PRIVATE Expr *sqlite3CreateColumnExpr(sqlite3 *, SrcList *, int, int);

SQLITE_PRIVATE void sqlite3BackupRestart(sqlite3_backup *);
SQLITE_PRIVATE void sqlite3BackupUpdate(sqlite3_backup *, Pgno, const u8 *);







#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
SQLITE_PRIVATE void sqlite3AnalyzeFunctions(void);
SQLITE_PRIVATE int sqlite3Stat4ProbeSetValue(Parse*,Index*,UnpackedRecord**,Expr*,u8,int,int*);

SQLITE_PRIVATE int sqlite3Stat4ValueFromExpr(Parse*, Expr*, u8, sqlite3_value**);
SQLITE_PRIVATE void sqlite3Stat4ProbeFree(UnpackedRecord*);
SQLITE_PRIVATE int sqlite3Stat4Column(sqlite3*, const void*, int, int, sqlite3_value**);

#endif

/*
** The interface to the LEMON-generated parser
*/
SQLITE_PRIVATE void *sqlite3ParserAlloc(void*(*)(u64));
SQLITE_PRIVATE void sqlite3ParserFree(void*, void(*)(void*));
................................................................................
#define IN_INDEX_NOOP         5   /* No table available. Use comparisons */
/*
** Allowed flags for the 3rd parameter to sqlite3FindInIndex().
*/
#define IN_INDEX_NOOP_OK     0x0001  /* OK to return IN_INDEX_NOOP */
#define IN_INDEX_MEMBERSHIP  0x0002  /* IN operator used for membership test */
#define IN_INDEX_LOOP        0x0004  /* IN operator used as a loop */
SQLITE_PRIVATE int sqlite3FindInIndex(Parse *, Expr *, u32, int*);

SQLITE_PRIVATE int sqlite3JournalOpen(sqlite3_vfs *, const char *, sqlite3_file *, int, int);
SQLITE_PRIVATE int sqlite3JournalSize(sqlite3_vfs *);
#ifdef SQLITE_ENABLE_ATOMIC_WRITE
SQLITE_PRIVATE   int sqlite3JournalCreate(sqlite3_file *);
#endif

................................................................................
SQLITE_PRIVATE int sqlite3ThreadJoin(SQLiteThread*, void**);
#endif

#if defined(SQLITE_ENABLE_DBSTAT_VTAB) || defined(SQLITE_TEST)
SQLITE_PRIVATE int sqlite3DbstatRegister(sqlite3*);
#endif






#endif /* SQLITEINT_H */

/************** End of sqliteInt.h *******************************************/
/************** Begin file global.c ******************************************/
/*
** 2008 June 13
**
................................................................................
** Bit 0x20 is set if the mapped character requires translation to upper
** case. i.e. if the character is a lower-case ASCII character.
** If x is a lower-case ASCII character, then its upper-case equivalent
** is (x - 0x20). Therefore toupper() can be implemented as:
**
**   (x & ~(map[x]&0x20))
**
** Standard function tolower() is implemented using the sqlite3UpperToLower[]
** array. tolower() is used more often than toupper() by SQLite.
**
** Bit 0x40 is set if the character non-alphanumeric and can be used in an 
** SQLite identifier.  Identifiers are alphanumerics, "_", "$", and any
** non-ASCII UTF character. Hence the test for whether or not a character is
** part of an identifier is 0x46.
**
** SQLite's versions are identical to the standard versions assuming a
** locale of "C". They are implemented as macros in sqliteInt.h.
*/
#ifdef SQLITE_ASCII
SQLITE_PRIVATE const unsigned char sqlite3CtypeMap[256] = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  /* 00..07    ........ */
  0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00,  /* 08..0f    ........ */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  /* 10..17    ........ */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  /* 18..1f    ........ */
................................................................................
** page size in bytes.
*/
#ifndef SQLITE_SORTER_PMASZ
# define SQLITE_SORTER_PMASZ 250
#endif

/* Statement journals spill to disk when their size exceeds the following
** threashold (in bytes). 0 means that statement journals are created and
** written to disk immediately (the default behavior for SQLite versions
** before 3.12.0).  -1 means always keep the entire statement journal in
** memory.  (The statement journal is also always held entirely in memory
** if journal_mode=MEMORY or if temp_store=MEMORY, regardless of this
** setting.)
*/
#ifndef SQLITE_STMTJRNL_SPILL 
................................................................................
#ifdef SQLITE_VDBE_COVERAGE
   0,                         /* xVdbeBranch */
   0,                         /* pVbeBranchArg */
#endif
#ifndef SQLITE_OMIT_BUILTIN_TEST
   0,                         /* xTestCallback */
#endif
   0                          /* bLocaltimeFault */

};

/*
** Hash table for global functions - functions common to all
** database connections.  After initialization, this table is
** read-only.
*/
................................................................................
};


/*
** The value of the "pending" byte must be 0x40000000 (1 byte past the
** 1-gibabyte boundary) in a compatible database.  SQLite never uses
** the database page that contains the pending byte.  It never attempts
** to read or write that page.  The pending byte page is set assign
** for use by the VFS layers as space for managing file locks.
**
** During testing, it is often desirable to move the pending byte to
** a different position in the file.  This allows code that has to
** deal with the pending byte to run on files that are much smaller
** than 1 GiB.  The sqlite3_test_control() interface can be used to
** move the pending byte.
................................................................................
/*
** Given the name of a compile-time option, return true if that option
** was used and false if not.
**
** The name can optionally begin with "SQLITE_" but the "SQLITE_" prefix
** is not required for a match.
*/
SQLITE_API int SQLITE_APICALL sqlite3_compileoption_used(const char *zOptName){
  int i, n;

#if SQLITE_ENABLE_API_ARMOR
  if( zOptName==0 ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
................................................................................
  return 0;
}

/*
** Return the N-th compile-time option string.  If N is out of range,
** return a NULL pointer.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_compileoption_get(int N){
  if( N>=0 && N<ArraySize(azCompileOpt) ){
    return azCompileOpt[N];
  }
  return 0;
}

#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */
................................................................................
** Boolean values
*/
typedef unsigned Bool;

/* Opaque type used by code in vdbesort.c */
typedef struct VdbeSorter VdbeSorter;

/* Opaque type used by the explainer */
typedef struct Explain Explain;

/* Elements of the linked list at Vdbe.pAuxData */
typedef struct AuxData AuxData;

/* Types of VDBE cursors */
#define CURTYPE_BTREE       0
#define CURTYPE_SORTER      1
#define CURTYPE_VTAB        2
................................................................................
  u32 *aOffset;         /* Pointer to aType[nField] */
  u32 aType[1];         /* Type values for all entries in the record */
  /* 2*nField extra array elements allocated for aType[], beyond the one
  ** static element declared in the structure.  nField total array slots for
  ** aType[] and nField+1 array slots for aOffset[] */
};







/*
** When a sub-program is executed (OP_Program), a structure of this type
** is allocated to store the current value of the program counter, as
** well as the current memory cell array and various other frame specific
** values stored in the Vdbe struct. When the sub-program is finished, 
** these values are copied back to the Vdbe from the VdbeFrame structure,
** restoring the state of the VM to as it was before the sub-program
................................................................................
typedef struct VdbeFrame VdbeFrame;
struct VdbeFrame {
  Vdbe *v;                /* VM this frame belongs to */
  VdbeFrame *pParent;     /* Parent of this frame, or NULL if parent is main */
  Op *aOp;                /* Program instructions for parent frame */
  i64 *anExec;            /* Event counters from parent frame */
  Mem *aMem;              /* Array of memory cells for parent frame */
  u8 *aOnceFlag;          /* Array of OP_Once flags for parent frame */
  VdbeCursor **apCsr;     /* Array of Vdbe cursors for parent frame */
  void *token;            /* Copy of SubProgram.token */
  i64 lastRowid;          /* Last insert rowid (sqlite3.lastRowid) */
  AuxData *pAuxData;      /* Linked list of auxdata allocations */
  int nCursor;            /* Number of entries in apCsr */
  int pc;                 /* Program Counter in parent (calling) frame */
  int nOp;                /* Size of aOp array */
  int nMem;               /* Number of entries in aMem */
  int nOnceFlag;          /* Number of entries in aOnceFlag */
  int nChildMem;          /* Number of memory cells for child frame */
  int nChildCsr;          /* Number of cursors for child frame */
  int nChange;            /* Statement changes (Vdbe.nChange)     */
  int nDbChange;          /* Value of db->nChange */
};

#define VdbeFrameMem(p) ((Mem *)&((u8 *)p)[ROUND8(sizeof(VdbeFrame))])

/*
** A value for VdbeCursor.cacheValid that means the cache is always invalid.
*/
#define CACHE_STALE 0

/*
** Internally, the vdbe manipulates nearly all SQL values as Mem
** structures. Each Mem struct may cache multiple representations (string,
** integer etc.) of the same value.
*/
struct Mem {
  union MemValue {
................................................................................
  int isError;            /* Error code returned by the function. */
  u8 skipFlag;            /* Skip accumulator loading if true */
  u8 fErrorOrAux;         /* isError!=0 or pVdbe->pAuxData modified */
  u8 argc;                /* Number of arguments */
  sqlite3_value *argv[1]; /* Argument set */
};

/*
** An Explain object accumulates indented output which is helpful
** in describing recursive data structures.
*/
struct Explain {
  Vdbe *pVdbe;       /* Attach the explanation to this Vdbe */
  StrAccum str;      /* The string being accumulated */
  int nIndent;       /* Number of elements in aIndent */
  u16 aIndent[100];  /* Levels of indentation */
  char zBase[100];   /* Initial space */
};

/* A bitfield type for use inside of structures.  Always follow with :N where
** N is the number of bits.
*/
typedef unsigned bft;  /* Bit Field Type */

typedef struct ScanStatus ScanStatus;
struct ScanStatus {
................................................................................
** state of the virtual machine.
**
** The "sqlite3_stmt" structure pointer that is returned by sqlite3_prepare()
** is really a pointer to an instance of this structure.
*/
struct Vdbe {
  sqlite3 *db;            /* The database connection that owns this statement */




















  Op *aOp;                /* Space to hold the virtual machine's program */
  Mem *aMem;              /* The memory locations */
  Mem **apArg;            /* Arguments to currently executing user function */
  Mem *aColName;          /* Column names to return */
  Mem *pResultSet;        /* Pointer to an array of results */
  Parse *pParse;          /* Parsing context used to create this Vdbe */
  int nMem;               /* Number of memory locations currently allocated */
  int nOp;                /* Number of instructions in the program */
  int nCursor;            /* Number of slots in apCsr[] */
  u32 magic;              /* Magic number for sanity checking */
  char *zErrMsg;          /* Error message written here */
  Vdbe *pPrev,*pNext;     /* Linked list of VDBEs with the same Vdbe.db */
  VdbeCursor **apCsr;     /* One element of this array for each open cursor */
  Mem *aVar;              /* Values for the OP_Variable opcode. */
  char **azVar;           /* Name of variables */
  ynVar nVar;             /* Number of entries in aVar[] */
  ynVar nzVar;            /* Number of entries in azVar[] */
  u32 cacheCtr;           /* VdbeCursor row cache generation counter */
  int pc;                 /* The program counter */
  int rc;                 /* Value to return */
#ifdef SQLITE_DEBUG
  int rcApp;              /* errcode set by sqlite3_result_error_code() */
#endif
  u16 nResColumn;         /* Number of columns in one row of the result set */
  u8 errorAction;         /* Recovery action to do in case of an error */

  bft expired:1;          /* True if the VM needs to be recompiled */
  bft doingRerun:1;       /* True if rerunning after an auto-reprepare */
  u8 minWriteFileFormat;  /* Minimum file format for writable database files */
  bft explain:2;          /* True if EXPLAIN present on SQL command */
  bft changeCntOn:1;      /* True to update the change-counter */
  bft runOnlyOnce:1;      /* Automatically expire on reset */
  bft usesStmtJournal:1;  /* True if uses a statement journal */
  bft readOnly:1;         /* True for statements that do not write */
  bft bIsReader:1;        /* True for statements that read */
  bft isPrepareV2:1;      /* True if prepared with prepare_v2() */
  int nChange;            /* Number of db changes made since last reset */
  yDbMask btreeMask;      /* Bitmask of db->aDb[] entries referenced */
  yDbMask lockMask;       /* Subset of btreeMask that requires a lock */
  int iStatement;         /* Statement number (or 0 if has not opened stmt) */
  u32 aCounter[5];        /* Counters used by sqlite3_stmt_status() */
#ifndef SQLITE_OMIT_TRACE
  i64 startTime;          /* Time when query started - used for profiling */
#endif
  i64 iCurrentTime;       /* Value of julianday('now') for this statement */
  i64 nFkConstraint;      /* Number of imm. FK constraints this VM */
  i64 nStmtDefCons;       /* Number of def. constraints when stmt started */
  i64 nStmtDefImmCons;    /* Number of def. imm constraints when stmt started */
  char *zSql;             /* Text of the SQL statement that generated this */
  void *pFree;            /* Free this when deleting the vdbe */
  VdbeFrame *pFrame;      /* Parent frame */
  VdbeFrame *pDelFrame;   /* List of frame objects to free on VM reset */
  int nFrame;             /* Number of frames in pFrame list */
  u32 expmask;            /* Binding to these vars invalidates VM */
  SubProgram *pProgram;   /* Linked list of all sub-programs used by VM */
  int nOnceFlag;          /* Size of array aOnceFlag[] */
  u8 *aOnceFlag;          /* Flags for OP_Once */
  AuxData *pAuxData;      /* Linked list of auxdata allocations */
#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
  i64 *anExec;            /* Number of times each op has been executed */
  int nScan;              /* Entries in aScan[] */
  ScanStatus *aScan;      /* Scan definitions for sqlite3_stmt_scanstatus() */
#endif
};

/*
** The following are allowed values for Vdbe.magic
*/
#define VDBE_MAGIC_INIT     0x26bceaa5    /* Building a VDBE program */
#define VDBE_MAGIC_RUN      0xbdf20da3    /* VDBE is ready to execute */
#define VDBE_MAGIC_HALT     0x519c2973    /* VDBE has completed execution */

#define VDBE_MAGIC_DEAD     0xb606c3c8    /* The VDBE has been deallocated */

/*
** Structure used to store the context required by the 
** sqlite3_preupdate_*() API functions.
*/
struct PreUpdate {
  Vdbe *v;
................................................................................
    wsdStat.mxValue[op] = newValue;
  }
}

/*
** Query status information.
*/
SQLITE_API int SQLITE_APICALL sqlite3_status64(
  int op,
  sqlite3_int64 *pCurrent,
  sqlite3_int64 *pHighwater,
  int resetFlag
){
  sqlite3_mutex *pMutex;
  wsdStatInit;
................................................................................
  if( resetFlag ){
    wsdStat.mxValue[op] = wsdStat.nowValue[op];
  }
  sqlite3_mutex_leave(pMutex);
  (void)pMutex;  /* Prevent warning when SQLITE_THREADSAFE=0 */
  return SQLITE_OK;
}
SQLITE_API int SQLITE_APICALL sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag){
  sqlite3_int64 iCur, iHwtr;
  int rc;
#ifdef SQLITE_ENABLE_API_ARMOR
  if( pCurrent==0 || pHighwater==0 ) return SQLITE_MISUSE_BKPT;
#endif
  rc = sqlite3_status64(op, &iCur, &iHwtr, resetFlag);
  if( rc==0 ){
    *pCurrent = (int)iCur;
................................................................................
  }
  return rc;
}

/*
** Query status information for a single database connection
*/
SQLITE_API int SQLITE_APICALL sqlite3_db_status(
  sqlite3 *db,          /* The database connection whose status is desired */
  int op,               /* Status verb */
  int *pCurrent,        /* Write current value here */
  int *pHighwater,      /* Write high-water mark here */
  int resetFlag         /* Reset high-water mark if true */
){
  int rc = SQLITE_OK;   /* Return code */
................................................................................
static void currentTimeFunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  time_t t;
  char *zFormat = (char *)sqlite3_user_data(context);
  sqlite3 *db;
  sqlite3_int64 iT;
  struct tm *pTm;
  struct tm sNow;
  char zBuf[20];

  UNUSED_PARAMETER(argc);
  UNUSED_PARAMETER(argv);
................................................................................
static sqlite3_vfs * SQLITE_WSD vfsList = 0;
#define vfsList GLOBAL(sqlite3_vfs *, vfsList)

/*
** Locate a VFS by name.  If no name is given, simply return the
** first VFS on the list.
*/
SQLITE_API sqlite3_vfs *SQLITE_APICALL sqlite3_vfs_find(const char *zVfs){
  sqlite3_vfs *pVfs = 0;
#if SQLITE_THREADSAFE
  sqlite3_mutex *mutex;
#endif
#ifndef SQLITE_OMIT_AUTOINIT
  int rc = sqlite3_initialize();
  if( rc ) return 0;
................................................................................
}

/*
** Register a VFS with the system.  It is harmless to register the same
** VFS multiple times.  The new VFS becomes the default if makeDflt is
** true.
*/
SQLITE_API int SQLITE_APICALL sqlite3_vfs_register(sqlite3_vfs *pVfs, int makeDflt){
  MUTEX_LOGIC(sqlite3_mutex *mutex;)
#ifndef SQLITE_OMIT_AUTOINIT
  int rc = sqlite3_initialize();
  if( rc ) return rc;
#endif
#ifdef SQLITE_ENABLE_API_ARMOR
  if( pVfs==0 ) return SQLITE_MISUSE_BKPT;
................................................................................
  sqlite3_mutex_leave(mutex);
  return SQLITE_OK;
}

/*
** Unregister a VFS so that it is no longer accessible.
*/
SQLITE_API int SQLITE_APICALL sqlite3_vfs_unregister(sqlite3_vfs *pVfs){
#if SQLITE_THREADSAFE
  sqlite3_mutex *mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
#endif
  sqlite3_mutex_enter(mutex);
  vfsUnlink(pVfs);
  sqlite3_mutex_leave(mutex);
  return SQLITE_OK;
................................................................................

  return rc;
}

/*
** Retrieve a pointer to a static mutex or allocate a new dynamic one.
*/
SQLITE_API sqlite3_mutex *SQLITE_APICALL sqlite3_mutex_alloc(int id){
#ifndef SQLITE_OMIT_AUTOINIT
  if( id<=SQLITE_MUTEX_RECURSIVE && sqlite3_initialize() ) return 0;
  if( id>SQLITE_MUTEX_RECURSIVE && sqlite3MutexInit() ) return 0;
#endif
  assert( sqlite3GlobalConfig.mutex.xMutexAlloc );
  return sqlite3GlobalConfig.mutex.xMutexAlloc(id);
}
................................................................................
  assert( sqlite3GlobalConfig.mutex.xMutexAlloc );
  return sqlite3GlobalConfig.mutex.xMutexAlloc(id);
}

/*
** Free a dynamic mutex.
*/
SQLITE_API void SQLITE_APICALL sqlite3_mutex_free(sqlite3_mutex *p){
  if( p ){
    assert( sqlite3GlobalConfig.mutex.xMutexFree );
    sqlite3GlobalConfig.mutex.xMutexFree(p);
  }
}

/*
** Obtain the mutex p. If some other thread already has the mutex, block
** until it can be obtained.
*/
SQLITE_API void SQLITE_APICALL sqlite3_mutex_enter(sqlite3_mutex *p){
  if( p ){
    assert( sqlite3GlobalConfig.mutex.xMutexEnter );
    sqlite3GlobalConfig.mutex.xMutexEnter(p);
  }
}

/*
** Obtain the mutex p. If successful, return SQLITE_OK. Otherwise, if another
** thread holds the mutex and it cannot be obtained, return SQLITE_BUSY.
*/
SQLITE_API int SQLITE_APICALL sqlite3_mutex_try(sqlite3_mutex *p){
  int rc = SQLITE_OK;
  if( p ){
    assert( sqlite3GlobalConfig.mutex.xMutexTry );
    return sqlite3GlobalConfig.mutex.xMutexTry(p);
  }
  return rc;
}
................................................................................

/*
** The sqlite3_mutex_leave() routine exits a mutex that was previously
** entered by the same thread.  The behavior is undefined if the mutex 
** is not currently entered. If a NULL pointer is passed as an argument
** this function is a no-op.
*/
SQLITE_API void SQLITE_APICALL sqlite3_mutex_leave(sqlite3_mutex *p){
  if( p ){
    assert( sqlite3GlobalConfig.mutex.xMutexLeave );
    sqlite3GlobalConfig.mutex.xMutexLeave(p);
  }
}

#ifndef NDEBUG
/*
** The sqlite3_mutex_held() and sqlite3_mutex_notheld() routine are
** intended for use inside assert() statements.
*/
SQLITE_API int SQLITE_APICALL sqlite3_mutex_held(sqlite3_mutex *p){
  assert( p==0 || sqlite3GlobalConfig.mutex.xMutexHeld );
  return p==0 || sqlite3GlobalConfig.mutex.xMutexHeld(p);
}
SQLITE_API int SQLITE_APICALL sqlite3_mutex_notheld(sqlite3_mutex *p){
  assert( p==0 || sqlite3GlobalConfig.mutex.xMutexNotheld );
  return p==0 || sqlite3GlobalConfig.mutex.xMutexNotheld(p);
}
#endif

#endif /* !defined(SQLITE_MUTEX_OMIT) */

................................................................................

/* As the winMutexInit() and winMutexEnd() functions are called as part
** of the sqlite3_initialize() and sqlite3_shutdown() processing, the
** "interlocked" magic used here is probably not strictly necessary.
*/
static LONG SQLITE_WIN32_VOLATILE winMutex_lock = 0;

SQLITE_API int SQLITE_APICALL sqlite3_win32_is_nt(void); /* os_win.c */
SQLITE_API void SQLITE_APICALL sqlite3_win32_sleep(DWORD milliseconds); /* os_win.c */

static int winMutexInit(void){
  /* The first to increment to 1 does actual initialization */
  if( InterlockedCompareExchange(&winMutex_lock, 1, 0)==0 ){
    int i;
    for(i=0; i<ArraySize(winMutex_staticMutexes); i++){
#if SQLITE_OS_WINRT
................................................................................
/* #include <stdarg.h> */

/*
** Attempt to release up to n bytes of non-essential memory currently
** held by SQLite. An example of non-essential memory is memory used to
** cache database pages that are not currently in use.
*/
SQLITE_API int SQLITE_APICALL sqlite3_release_memory(int n){
#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
  return sqlite3PcacheReleaseMemory(n);
#else
  /* IMPLEMENTATION-OF: R-34391-24921 The sqlite3_release_memory() routine
  ** is a no-op returning zero if SQLite is not compiled with
  ** SQLITE_ENABLE_MEMORY_MANAGEMENT. */
  UNUSED_PARAMETER(n);
................................................................................

#ifndef SQLITE_OMIT_DEPRECATED
/*
** Deprecated external interface.  It used to set an alarm callback
** that was invoked when memory usage grew too large.  Now it is a
** no-op.
*/
SQLITE_API int SQLITE_APICALL sqlite3_memory_alarm(
  void(*xCallback)(void *pArg, sqlite3_int64 used,int N),
  void *pArg,
  sqlite3_int64 iThreshold
){
  (void)xCallback;
  (void)pArg;
  (void)iThreshold;
................................................................................
}
#endif

/*
** Set the soft heap-size limit for the library. Passing a zero or 
** negative value indicates no limit.
*/
SQLITE_API sqlite3_int64 SQLITE_APICALL sqlite3_soft_heap_limit64(sqlite3_int64 n){
  sqlite3_int64 priorLimit;
  sqlite3_int64 excess;
  sqlite3_int64 nUsed;
#ifndef SQLITE_OMIT_AUTOINIT
  int rc = sqlite3_initialize();
  if( rc ) return -1;
#endif
................................................................................
  nUsed = sqlite3StatusValue(SQLITE_STATUS_MEMORY_USED);
  mem0.nearlyFull = (n>0 && n<=nUsed);
  sqlite3_mutex_leave(mem0.mutex);
  excess = sqlite3_memory_used() - n;
  if( excess>0 ) sqlite3_release_memory((int)(excess & 0x7fffffff));
  return priorLimit;
}
SQLITE_API void SQLITE_APICALL sqlite3_soft_heap_limit(int n){
  if( n<0 ) n = 0;
  sqlite3_soft_heap_limit64(n);
}

/*
** Initialize the memory allocation subsystem.
*/
................................................................................
  }
  memset(&mem0, 0, sizeof(mem0));
}

/*
** Return the amount of memory currently checked out.
*/
SQLITE_API sqlite3_int64 SQLITE_APICALL sqlite3_memory_used(void){
  sqlite3_int64 res, mx;
  sqlite3_status64(SQLITE_STATUS_MEMORY_USED, &res, &mx, 0);
  return res;
}

/*
** Return the maximum amount of memory that has ever been
** checked out since either the beginning of this process
** or since the most recent reset.
*/
SQLITE_API sqlite3_int64 SQLITE_APICALL sqlite3_memory_highwater(int resetFlag){
  sqlite3_int64 res, mx;
  sqlite3_status64(SQLITE_STATUS_MEMORY_USED, &res, &mx, resetFlag);
  return mx;
}

/*
** Trigger the alarm 
................................................................................
}

/*
** This version of the memory allocation is for use by the application.
** First make sure the memory subsystem is initialized, then do the
** allocation.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_malloc(int n){
#ifndef SQLITE_OMIT_AUTOINIT
  if( sqlite3_initialize() ) return 0;
#endif
  return n<=0 ? 0 : sqlite3Malloc(n);
}
SQLITE_API void *SQLITE_APICALL sqlite3_malloc64(sqlite3_uint64 n){
#ifndef SQLITE_OMIT_AUTOINIT
  if( sqlite3_initialize() ) return 0;
#endif
  return sqlite3Malloc(n);
}

/*
................................................................................
#endif
    return sqlite3GlobalConfig.m.xSize(p);
  }else{
    assert( sqlite3_mutex_held(db->mutex) );
    return db->lookaside.sz;
  }
}
SQLITE_API sqlite3_uint64 SQLITE_APICALL sqlite3_msize(void *p){
  assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) );
  assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) );
  return p ? sqlite3GlobalConfig.m.xSize(p) : 0;
}

/*
** Free memory previously obtained from sqlite3Malloc().
*/
SQLITE_API void SQLITE_APICALL sqlite3_free(void *p){
  if( p==0 ) return;  /* IMP: R-49053-54554 */
  assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) );
  assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) );
  if( sqlite3GlobalConfig.bMemstat ){
    sqlite3_mutex_enter(mem0.mutex);
    sqlite3StatusDown(SQLITE_STATUS_MEMORY_USED, sqlite3MallocSize(p));
    sqlite3StatusDown(SQLITE_STATUS_MALLOC_COUNT, 1);
................................................................................
  return pNew;
}

/*
** The public interface to sqlite3Realloc.  Make sure that the memory
** subsystem is initialized prior to invoking sqliteRealloc.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_realloc(void *pOld, int n){
#ifndef SQLITE_OMIT_AUTOINIT
  if( sqlite3_initialize() ) return 0;
#endif
  if( n<0 ) n = 0;  /* IMP: R-26507-47431 */
  return sqlite3Realloc(pOld, n);
}
SQLITE_API void *SQLITE_APICALL sqlite3_realloc64(void *pOld, sqlite3_uint64 n){
#ifndef SQLITE_OMIT_AUTOINIT
  if( sqlite3_initialize() ) return 0;
#endif
  return sqlite3Realloc(pOld, n);
}


................................................................................
  return z;
}

/*
** Print into memory obtained from sqlite3_malloc().  Omit the internal
** %-conversion extensions.
*/
SQLITE_API char *SQLITE_APICALL sqlite3_vmprintf(const char *zFormat, va_list ap){
  char *z;
  char zBase[SQLITE_PRINT_BUF_SIZE];
  StrAccum acc;

#ifdef SQLITE_ENABLE_API_ARMOR  
  if( zFormat==0 ){
    (void)SQLITE_MISUSE_BKPT;
................................................................................
  return z;
}

/*
** Print into memory obtained from sqlite3_malloc()().  Omit the internal
** %-conversion extensions.
*/
SQLITE_API char *SQLITE_CDECL sqlite3_mprintf(const char *zFormat, ...){
  va_list ap;
  char *z;
#ifndef SQLITE_OMIT_AUTOINIT
  if( sqlite3_initialize() ) return 0;
#endif
  va_start(ap, zFormat);
  z = sqlite3_vmprintf(zFormat, ap);
................................................................................
** Oops:  The first two arguments of sqlite3_snprintf() are backwards
** from the snprintf() standard.  Unfortunately, it is too late to change
** this without breaking compatibility, so we just have to live with the
** mistake.
**
** sqlite3_vsnprintf() is the varargs version.
*/
SQLITE_API char *SQLITE_APICALL sqlite3_vsnprintf(int n, char *zBuf, const char *zFormat, va_list ap){
  StrAccum acc;
  if( n<=0 ) return zBuf;
#ifdef SQLITE_ENABLE_API_ARMOR
  if( zBuf==0 || zFormat==0 ) {
    (void)SQLITE_MISUSE_BKPT;
    if( zBuf ) zBuf[0] = 0;
    return zBuf;
  }
#endif
  sqlite3StrAccumInit(&acc, 0, zBuf, n, 0);
  sqlite3VXPrintf(&acc, zFormat, ap);
  return sqlite3StrAccumFinish(&acc);
}
SQLITE_API char *SQLITE_CDECL sqlite3_snprintf(int n, char *zBuf, const char *zFormat, ...){
  char *z;
  va_list ap;
  va_start(ap,zFormat);
  z = sqlite3_vsnprintf(n, zBuf, zFormat, ap);
  va_end(ap);
  return z;
}
................................................................................
  sqlite3GlobalConfig.xLog(sqlite3GlobalConfig.pLogArg, iErrCode,
                           sqlite3StrAccumFinish(&acc));
}

/*
** Format and write a message to the log if logging is enabled.
*/
SQLITE_API void SQLITE_CDECL sqlite3_log(int iErrCode, const char *zFormat, ...){
  va_list ap;                             /* Vararg list */
  if( sqlite3GlobalConfig.xLog ){
    va_start(ap, zFormat);
    renderLogMsg(iErrCode, zFormat, ap);
    va_end(ap);
  }
}
................................................................................
    }
    sqlite3TreeViewPop(pView);
  }
}


/*
** Generate a human-readable description of a the Select object.
*/
SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 moreToFollow){
  int n = 0;
  int cnt = 0;
  pView = sqlite3TreeViewPush(pView, moreToFollow);
  if( p->pWith ){
    sqlite3TreeViewWith(pView, p->pWith, 1);
................................................................................
    }
#endif
    case TK_MATCH: {
      sqlite3TreeViewLine(pView, "MATCH {%d:%d}%s",
                          pExpr->iTable, pExpr->iColumn, zFlgs);
      sqlite3TreeViewExpr(pView, pExpr->pRight, 0);
      break;









    }
    default: {
      sqlite3TreeViewLine(pView, "op=%d", pExpr->op);
      break;
    }
  }
  if( zBinOp ){
................................................................................
    sqlite3TreeViewExpr(pView, pExpr->pRight, 0);
  }else if( zUniOp ){
    sqlite3TreeViewLine(pView, "%s%s", zUniOp, zFlgs);
    sqlite3TreeViewExpr(pView, pExpr->pLeft, 0);
  }
  sqlite3TreeViewPop(pView);
}


/*
** Generate a human-readable explanation of an expression list.
*/
SQLITE_PRIVATE void sqlite3TreeViewExprList(
  TreeView *pView,
  const ExprList *pList,
  u8 moreToFollow,
  const char *zLabel
){
  int i;
  pView = sqlite3TreeViewPush(pView, moreToFollow);
  if( zLabel==0 || zLabel[0]==0 ) zLabel = "LIST";
  if( pList==0 ){
    sqlite3TreeViewLine(pView, "%s (empty)", zLabel);
  }else{

    sqlite3TreeViewLine(pView, "%s", zLabel);
    for(i=0; i<pList->nExpr; i++){
      int j = pList->a[i].u.x.iOrderByCol;
      if( j ){
        sqlite3TreeViewPush(pView, 0);
        sqlite3TreeViewLine(pView, "iOrderByCol=%d", j);
      }
      sqlite3TreeViewExpr(pView, pList->a[i].pExpr, i<pList->nExpr-1);
      if( j ) sqlite3TreeViewPop(pView);
    }
  }









  sqlite3TreeViewPop(pView);
}

#endif /* SQLITE_DEBUG */

/************** End of treeview.c ********************************************/
/************** Begin file random.c ******************************************/
................................................................................
  unsigned char i, j;            /* State variables */
  unsigned char s[256];          /* State variables */
} sqlite3Prng;

/*
** Return N random bytes.
*/
SQLITE_API void SQLITE_APICALL sqlite3_randomness(int N, void *pBuf){
  unsigned char t;
  unsigned char *zBuf = pBuf;

  /* The "wsdPrng" macro will resolve to the pseudo-random number generator
  ** state vector.  If writable static data is unsupported on the target,
  ** we have to locate the state vector at run-time.  In the more common
  ** case where writable static data is supported, wsdPrng can refer directly
................................................................................
**
** IMPLEMENTATION-OF: R-30243-02494 The sqlite3_stricmp() and
** sqlite3_strnicmp() APIs allow applications and extensions to compare
** the contents of two buffers containing UTF-8 strings in a
** case-independent fashion, using the same definition of "case
** independence" that SQLite uses internally when comparing identifiers.
*/
SQLITE_API int SQLITE_APICALL sqlite3_stricmp(const char *zLeft, const char *zRight){
  if( zLeft==0 ){
    return zRight ? -1 : 0;
  }else if( zRight==0 ){
    return 1;
  }
  return sqlite3StrICmp(zLeft, zRight);
}
................................................................................
    c = (int)UpperToLower[*a] - (int)UpperToLower[*b];
    if( c || *a==0 ) break;
    a++;
    b++;
  }
  return c;
}
SQLITE_API int SQLITE_APICALL sqlite3_strnicmp(const char *zLeft, const char *zRight, int N){
  register unsigned char *a, *b;
  if( zLeft==0 ){
    return zRight ? -1 : 0;
  }else if( zRight==0 ){
    return 1;
  }
  a = (unsigned char *)zLeft;
................................................................................
    if( (*pA)>=0 ) return 1;
    *pA -= iB;
    return 0;
  }else{
    return sqlite3AddInt64(pA, -iB);
  }
}
#define TWOPOWER32 (((i64)1)<<32)
#define TWOPOWER31 (((i64)1)<<31)
SQLITE_PRIVATE int sqlite3MulInt64(i64 *pA, i64 iB){
  i64 iA = *pA;
  i64 iA1, iA0, iB1, iB0, r;

  iA1 = iA/TWOPOWER32;
  iA0 = iA % TWOPOWER32;
  iB1 = iB/TWOPOWER32;
  iB0 = iB % TWOPOWER32;
  if( iA1==0 ){
    if( iB1==0 ){
      *pA *= iB;
      return 0;
    }
    r = iA0*iB1;


  }else if( iB1==0 ){
    r = iA1*iB0;


  }else{
    /* If both iA1 and iB1 are non-zero, overflow will result */
    return 1;


  }
  testcase( r==(-TWOPOWER31)-1 );
  testcase( r==(-TWOPOWER31) );
  testcase( r==TWOPOWER31 );
  testcase( r==TWOPOWER31-1 );
  if( r<(-TWOPOWER31) || r>=TWOPOWER31 ) return 1;
  r *= TWOPOWER32;
  if( sqlite3AddInt64(&r, iA0*iB0) ) return 1;

  *pA = r;
  return 0;
}

/*
** Compute the absolute value of a 32-bit signed integer, of possible.  Or 
** if the integer has a value of -2147483648, return +2147483647
*/
................................................................................
/*
** The hashing function.
*/
static unsigned int strHash(const char *z){
  unsigned int h = 0;
  unsigned char c;
  while( (c = (unsigned char)*z++)!=0 ){     /*OPTIMIZATION-IF-TRUE*/



    h = (h<<3) ^ h ^ sqlite3UpperToLower[c];

  }
  return h;
}


/* Link pNew element into the hash table pH.  If pEntry!=0 then also
** insert pNew into the pEntry hash bucket.
................................................................................
    /*  29 */ "NoConflict"       OpHelp("key=r[P3@P4]"),
    /*  30 */ "NotFound"         OpHelp("key=r[P3@P4]"),
    /*  31 */ "Found"            OpHelp("key=r[P3@P4]"),
    /*  32 */ "SeekRowid"        OpHelp("intkey=r[P3]"),
    /*  33 */ "NotExists"        OpHelp("intkey=r[P3]"),
    /*  34 */ "IsNull"           OpHelp("if r[P1]==NULL goto P2"),
    /*  35 */ "NotNull"          OpHelp("if r[P1]!=NULL goto P2"),
    /*  36 */ "Ne"               OpHelp("if r[P1]!=r[P3] goto P2"),
    /*  37 */ "Eq"               OpHelp("if r[P1]==r[P3] goto P2"),
    /*  38 */ "Gt"               OpHelp("if r[P1]>r[P3] goto P2"),
    /*  39 */ "Le"               OpHelp("if r[P1]<=r[P3] goto P2"),
    /*  40 */ "Lt"               OpHelp("if r[P1]<r[P3] goto P2"),
    /*  41 */ "Ge"               OpHelp("if r[P1]>=r[P3] goto P2"),
    /*  42 */ "Last"             OpHelp(""),
    /*  43 */ "BitAnd"           OpHelp("r[P3]=r[P1]&r[P2]"),
    /*  44 */ "BitOr"            OpHelp("r[P3]=r[P1]|r[P2]"),
    /*  45 */ "ShiftLeft"        OpHelp("r[P3]=r[P2]<<r[P1]"),
    /*  46 */ "ShiftRight"       OpHelp("r[P3]=r[P2]>>r[P1]"),
    /*  47 */ "Add"              OpHelp("r[P3]=r[P1]+r[P2]"),
    /*  48 */ "Subtract"         OpHelp("r[P3]=r[P2]-r[P1]"),
    /*  49 */ "Multiply"         OpHelp("r[P3]=r[P1]*r[P2]"),
    /*  50 */ "Divide"           OpHelp("r[P3]=r[P2]/r[P1]"),
    /*  51 */ "Remainder"        OpHelp("r[P3]=r[P2]%r[P1]"),
    /*  52 */ "Concat"           OpHelp("r[P3]=r[P2]+r[P1]"),
    /*  53 */ "SorterSort"       OpHelp(""),
    /*  54 */ "BitNot"           OpHelp("r[P1]= ~r[P1]"),

    /*  55 */ "Sort"             OpHelp(""),
    /*  56 */ "Rewind"           OpHelp(""),
    /*  57 */ "IdxLE"            OpHelp("key=r[P3@P4]"),
    /*  58 */ "IdxGT"            OpHelp("key=r[P3@P4]"),
    /*  59 */ "IdxLT"            OpHelp("key=r[P3@P4]"),
    /*  60 */ "IdxGE"            OpHelp("key=r[P3@P4]"),
    /*  61 */ "RowSetRead"       OpHelp("r[P3]=rowset(P1)"),
    /*  62 */ "RowSetTest"       OpHelp("if r[P3] in rowset(P1) goto P2"),
    /*  63 */ "Program"          OpHelp(""),
    /*  64 */ "FkIfZero"         OpHelp("if fkctr[P1]==0 goto P2"),
    /*  65 */ "IfPos"            OpHelp("if r[P1]>0 then r[P1]-=P3, goto P2"),
    /*  66 */ "IfNotZero"        OpHelp("if r[P1]!=0 then r[P1]-=P3, goto P2"),
    /*  67 */ "DecrJumpZero"     OpHelp("if (--r[P1])==0 goto P2"),
    /*  68 */ "IncrVacuum"       OpHelp(""),
    /*  69 */ "VNext"            OpHelp(""),
    /*  70 */ "Init"             OpHelp("Start at P2"),
    /*  71 */ "Return"           OpHelp(""),
    /*  72 */ "EndCoroutine"     OpHelp(""),
    /*  73 */ "HaltIfNull"       OpHelp("if r[P3]=null halt"),
    /*  74 */ "Halt"             OpHelp(""),
    /*  75 */ "Integer"          OpHelp("r[P2]=P1"),
    /*  76 */ "Int64"            OpHelp("r[P2]=P4"),
    /*  77 */ "String"           OpHelp("r[P2]='P4' (len=P1)"),
    /*  78 */ "Null"             OpHelp("r[P2..P3]=NULL"),
    /*  79 */ "SoftNull"         OpHelp("r[P1]=NULL"),
    /*  80 */ "Blob"             OpHelp("r[P2]=P4 (len=P1)"),
    /*  81 */ "Variable"         OpHelp("r[P2]=parameter(P1,P4)"),
    /*  82 */ "Move"             OpHelp("r[P2@P3]=r[P1@P3]"),
    /*  83 */ "Copy"             OpHelp("r[P2@P3+1]=r[P1@P3+1]"),
    /*  84 */ "SCopy"            OpHelp("r[P2]=r[P1]"),
    /*  85 */ "IntCopy"          OpHelp("r[P2]=r[P1]"),
    /*  86 */ "ResultRow"        OpHelp("output=r[P1@P2]"),
    /*  87 */ "CollSeq"          OpHelp(""),
    /*  88 */ "Function0"        OpHelp("r[P3]=func(r[P2@P5])"),
    /*  89 */ "Function"         OpHelp("r[P3]=func(r[P2@P5])"),
    /*  90 */ "AddImm"           OpHelp("r[P1]=r[P1]+P2"),
    /*  91 */ "RealAffinity"     OpHelp(""),
    /*  92 */ "Cast"             OpHelp("affinity(r[P1])"),
    /*  93 */ "Permutation"      OpHelp(""),
    /*  94 */ "Compare"          OpHelp("r[P1@P3] <-> r[P2@P3]"),
    /*  95 */ "Column"           OpHelp("r[P3]=PX"),
    /*  96 */ "Affinity"         OpHelp("affinity(r[P1@P2])"),
    /*  97 */ "String8"          OpHelp("r[P2]='P4'"),

    /*  98 */ "MakeRecord"       OpHelp("r[P3]=mkrec(r[P1@P2])"),
    /*  99 */ "Count"            OpHelp("r[P2]=count()"),
    /* 100 */ "ReadCookie"       OpHelp(""),
    /* 101 */ "SetCookie"        OpHelp(""),
    /* 102 */ "ReopenIdx"        OpHelp("root=P2 iDb=P3"),
    /* 103 */ "OpenRead"         OpHelp("root=P2 iDb=P3"),
    /* 104 */ "OpenWrite"        OpHelp("root=P2 iDb=P3"),
    /* 105 */ "OpenAutoindex"    OpHelp("nColumn=P2"),
    /* 106 */ "OpenEphemeral"    OpHelp("nColumn=P2"),
    /* 107 */ "SorterOpen"       OpHelp(""),
    /* 108 */ "SequenceTest"     OpHelp("if( cursor[P1].ctr++ ) pc = P2"),
    /* 109 */ "OpenPseudo"       OpHelp("P3 columns in r[P2]"),
    /* 110 */ "Close"            OpHelp(""),
    /* 111 */ "ColumnsUsed"      OpHelp(""),
    /* 112 */ "Sequence"         OpHelp("r[P2]=cursor[P1].ctr++"),
    /* 113 */ "NewRowid"         OpHelp("r[P2]=rowid"),
    /* 114 */ "Insert"           OpHelp("intkey=r[P3] data=r[P2]"),
    /* 115 */ "InsertInt"        OpHelp("intkey=P3 data=r[P2]"),
    /* 116 */ "Delete"           OpHelp(""),
    /* 117 */ "ResetCount"       OpHelp(""),
    /* 118 */ "SorterCompare"    OpHelp("if key(P1)!=trim(r[P3],P4) goto P2"),
    /* 119 */ "SorterData"       OpHelp("r[P2]=data"),
    /* 120 */ "RowKey"           OpHelp("r[P2]=key"),
    /* 121 */ "RowData"          OpHelp("r[P2]=data"),
    /* 122 */ "Rowid"            OpHelp("r[P2]=rowid"),
    /* 123 */ "NullRow"          OpHelp(""),
    /* 124 */ "SorterInsert"     OpHelp(""),
    /* 125 */ "IdxInsert"        OpHelp("key=r[P2]"),
    /* 126 */ "IdxDelete"        OpHelp("key=r[P2@P3]"),
    /* 127 */ "Seek"             OpHelp("Move P3 to P1.rowid"),
    /* 128 */ "IdxRowid"         OpHelp("r[P2]=rowid"),
    /* 129 */ "Destroy"          OpHelp(""),
    /* 130 */ "Clear"            OpHelp(""),

    /* 131 */ "ResetSorter"      OpHelp(""),
    /* 132 */ "CreateIndex"      OpHelp("r[P2]=root iDb=P1"),
    /* 133 */ "Real"             OpHelp("r[P2]=P4"),
    /* 134 */ "CreateTable"      OpHelp("r[P2]=root iDb=P1"),
    /* 135 */ "ParseSchema"      OpHelp(""),
    /* 136 */ "LoadAnalysis"     OpHelp(""),
    /* 137 */ "DropTable"        OpHelp(""),
    /* 138 */ "DropIndex"        OpHelp(""),
    /* 139 */ "DropTrigger"      OpHelp(""),
    /* 140 */ "IntegrityCk"      OpHelp(""),
    /* 141 */ "RowSetAdd"        OpHelp("rowset(P1)=r[P2]"),
    /* 142 */ "Param"            OpHelp(""),
    /* 143 */ "FkCounter"        OpHelp("fkctr[P1]+=P2"),
    /* 144 */ "MemMax"           OpHelp("r[P1]=max(r[P1],r[P2])"),
    /* 145 */ "OffsetLimit"      OpHelp("if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1)"),
    /* 146 */ "AggStep0"         OpHelp("accum=r[P3] step(r[P2@P5])"),
    /* 147 */ "AggStep"          OpHelp("accum=r[P3] step(r[P2@P5])"),
    /* 148 */ "AggFinal"         OpHelp("accum=r[P1] N=P2"),
    /* 149 */ "Expire"           OpHelp(""),
    /* 150 */ "TableLock"        OpHelp("iDb=P1 root=P2 write=P3"),
    /* 151 */ "VBegin"           OpHelp(""),
    /* 152 */ "VCreate"          OpHelp(""),
    /* 153 */ "VDestroy"         OpHelp(""),
    /* 154 */ "VOpen"            OpHelp(""),
    /* 155 */ "VColumn"          OpHelp("r[P3]=vcolumn(P2)"),
    /* 156 */ "VRename"          OpHelp(""),
    /* 157 */ "Pagecount"        OpHelp(""),
    /* 158 */ "MaxPgcnt"         OpHelp(""),
    /* 159 */ "CursorHint"       OpHelp(""),
    /* 160 */ "Noop"             OpHelp(""),
    /* 161 */ "Explain"          OpHelp(""),
  };
  return azName[i];
}
#endif

/************** End of opcodes.c *********************************************/
/************** Begin file os_unix.c *****************************************/
................................................................................
      }
    }
    unixLeaveMutex();
  }
#endif    /* if !OS_VXWORKS */
  return pUnused;
}






















/*
** This function is called by unixOpen() to determine the unix permissions
** to create new files with. If no error occurs, then SQLITE_OK is returned
** and a value suitable for passing as the third argument to open(2) is
** written to *pMode. If an IO error occurs, an SQLite error code is 
** returned and the value of *pMode is not modified.
................................................................................
  int rc = SQLITE_OK;             /* Return Code */
  *pMode = 0;
  *pUid = 0;
  *pGid = 0;
  if( flags & (SQLITE_OPEN_WAL|SQLITE_OPEN_MAIN_JOURNAL) ){
    char zDb[MAX_PATHNAME+1];     /* Database file path */
    int nDb;                      /* Number of valid bytes in zDb */
    struct stat sStat;            /* Output of stat() on database file */

    /* zPath is a path to a WAL or journal file. The following block derives
    ** the path to the associated database file from zPath. This block handles
    ** the following naming conventions:
    **
    **   "<path to db>-journal"
    **   "<path to db>-wal"
................................................................................
      if( nDb==0 || zPath[nDb]=='.' ) return SQLITE_OK;
#endif
      nDb--;
    }
    memcpy(zDb, zPath, nDb);
    zDb[nDb] = '\0';

    if( 0==osStat(zDb, &sStat) ){
      *pMode = sStat.st_mode & 0777;
      *pUid = sStat.st_uid;
      *pGid = sStat.st_gid;
    }else{
      rc = SQLITE_IOERR_FSTAT;
    }
  }else if( flags & SQLITE_OPEN_DELETEONCLOSE ){
    *pMode = 0600;









  }
  return rc;
}

/*
** Open the file zPath.
** 
................................................................................
** files.
**
** This routine is called once during SQLite initialization and by a
** single thread.  The memory allocation and mutex subsystems have not
** necessarily been initialized when this routine is called, and so they
** should not be used.
*/
SQLITE_API int SQLITE_APICALL sqlite3_os_init(void){ 
  /* 
  ** The following macro defines an initializer for an sqlite3_vfs object.
  ** The name of the VFS is NAME.  The pAppData is a pointer to a pointer
  ** to the "finder" function.  (pAppData is a pointer to a pointer because
  ** silly C90 rules prohibit a void* from being cast to a function pointer
  ** and so we have to go through the intermediate pointer to avoid problems
  ** when compiling with -pedantic-errors on GCC.)
................................................................................
/*
** Shutdown the operating system interface.
**
** Some operating systems might need to do some cleanup in this routine,
** to release dynamically allocated objects.  But not on unix.
** This routine is a no-op for unix.
*/
SQLITE_API int SQLITE_APICALL sqlite3_os_end(void){ 
  return SQLITE_OK; 
}
 
#endif /* SQLITE_OS_UNIX */

/************** End of os_unix.c *********************************************/
/************** Begin file os_win.c ******************************************/
................................................................................
/*
** If a Win32 native heap has been configured, this function will attempt to
** compact it.  Upon success, SQLITE_OK will be returned.  Upon failure, one
** of SQLITE_NOMEM, SQLITE_ERROR, or SQLITE_NOTFOUND will be returned.  The
** "pnLargest" argument, if non-zero, will be used to return the size of the
** largest committed free block in the heap, in bytes.
*/
SQLITE_API int SQLITE_APICALL sqlite3_win32_compact_heap(LPUINT pnLargest){
  int rc = SQLITE_OK;
  UINT nLargest = 0;
  HANDLE hHeap;

  winMemAssertMagic();
  hHeap = winMemGetHeap();
  assert( hHeap!=0 );
................................................................................

/*
** If a Win32 native heap has been configured, this function will attempt to
** destroy and recreate it.  If the Win32 native heap is not isolated and/or
** the sqlite3_memory_used() function does not return zero, SQLITE_BUSY will
** be returned and no changes will be made to the Win32 native heap.
*/
SQLITE_API int SQLITE_APICALL sqlite3_win32_reset_heap(){
  int rc;
  MUTEX_LOGIC( sqlite3_mutex *pMaster; ) /* The main static mutex */
  MUTEX_LOGIC( sqlite3_mutex *pMem; )    /* The memsys static mutex */
  MUTEX_LOGIC( pMaster = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER); )
  MUTEX_LOGIC( pMem = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MEM); )
  sqlite3_mutex_enter(pMaster);
  sqlite3_mutex_enter(pMem);
................................................................................
#endif /* SQLITE_WIN32_MALLOC */

/*
** This function outputs the specified (ANSI) string to the Win32 debugger
** (if available).
*/

SQLITE_API void SQLITE_APICALL sqlite3_win32_write_debug(const char *zBuf, int nBuf){
  char zDbgBuf[SQLITE_WIN32_DBG_BUF_SIZE];
  int nMin = MIN(nBuf, (SQLITE_WIN32_DBG_BUF_SIZE - 1)); /* may be negative. */
  if( nMin<-1 ) nMin = -1; /* all negative values become -1. */
  assert( nMin==-1 || nMin==0 || nMin<SQLITE_WIN32_DBG_BUF_SIZE );
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !zBuf ){
    (void)SQLITE_MISUSE_BKPT;
................................................................................
** The following routine suspends the current thread for at least ms
** milliseconds.  This is equivalent to the Win32 Sleep() interface.
*/
#if SQLITE_OS_WINRT
static HANDLE sleepObj = NULL;
#endif

SQLITE_API void SQLITE_APICALL sqlite3_win32_sleep(DWORD milliseconds){
#if SQLITE_OS_WINRT
  if ( sleepObj==NULL ){
    sleepObj = osCreateEventExW(NULL, NULL, CREATE_EVENT_MANUAL_RESET,
                                SYNCHRONIZE);
  }
  assert( sleepObj!=NULL );
  osWaitForSingleObjectEx(sleepObj, milliseconds, FALSE);
................................................................................
# define osIsNT()  ((sqlite3_os_type==2) || sqlite3_win32_is_nt())
#endif

/*
** This function determines if the machine is running a version of Windows
** based on the NT kernel.
*/
SQLITE_API int SQLITE_APICALL sqlite3_win32_is_nt(void){
#if SQLITE_OS_WINRT
  /*
  ** NOTE: The WinRT sub-platform is always assumed to be based on the NT
  **       kernel.
  */
  return 1;
#elif SQLITE_WIN32_GETVERSIONEX
................................................................................
  sqlite3_free(zTmpWide);
  return zTextMbcs;
}

/*
** This is a public wrapper for the winUtf8ToUnicode() function.
*/
SQLITE_API LPWSTR SQLITE_APICALL sqlite3_win32_utf8_to_unicode(const char *zText){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !zText ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
#ifndef SQLITE_OMIT_AUTOINIT
................................................................................
#endif
  return winUtf8ToUnicode(zText);
}

/*
** This is a public wrapper for the winUnicodeToUtf8() function.
*/
SQLITE_API char *SQLITE_APICALL sqlite3_win32_unicode_to_utf8(LPCWSTR zWideText){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !zWideText ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
#ifndef SQLITE_OMIT_AUTOINIT
................................................................................
#endif
  return winUnicodeToUtf8(zWideText);
}

/*
** This is a public wrapper for the winMbcsToUtf8() function.
*/
SQLITE_API char *SQLITE_APICALL sqlite3_win32_mbcs_to_utf8(const char *zText){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !zText ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
#ifndef SQLITE_OMIT_AUTOINIT
................................................................................
#endif
  return winMbcsToUtf8(zText, osAreFileApisANSI());
}

/*
** This is a public wrapper for the winMbcsToUtf8() function.
*/
SQLITE_API char *SQLITE_APICALL sqlite3_win32_mbcs_to_utf8_v2(const char *zText, int useAnsi){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !zText ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
#ifndef SQLITE_OMIT_AUTOINIT
................................................................................
#endif
  return winMbcsToUtf8(zText, useAnsi);
}

/*
** This is a public wrapper for the winUtf8ToMbcs() function.
*/
SQLITE_API char *SQLITE_APICALL sqlite3_win32_utf8_to_mbcs(const char *zText){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !zText ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
#ifndef SQLITE_OMIT_AUTOINIT
................................................................................
#endif
  return winUtf8ToMbcs(zText, osAreFileApisANSI());
}

/*
** This is a public wrapper for the winUtf8ToMbcs() function.
*/
SQLITE_API char *SQLITE_APICALL sqlite3_win32_utf8_to_mbcs_v2(const char *zText, int useAnsi){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !zText ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
#ifndef SQLITE_OMIT_AUTOINIT
................................................................................
/*
** This function sets the data directory or the temporary directory based on
** the provided arguments.  The type argument must be 1 in order to set the
** data directory or 2 in order to set the temporary directory.  The zValue
** argument is the name of the directory to use.  The return value will be
** SQLITE_OK if successful.
*/
SQLITE_API int SQLITE_APICALL sqlite3_win32_set_directory(DWORD type, LPCWSTR zValue){
  char **ppDirectory = 0;
#ifndef SQLITE_OMIT_AUTOINIT
  int rc = sqlite3_initialize();
  if( rc ) return rc;
#endif
  if( type==SQLITE_WIN32_DATA_DIRECTORY_TYPE ){
    ppDirectory = &sqlite3_data_directory;
................................................................................
  if( nBuf>0 ) winGetLastErrorMsg(e, nBuf, zBuf);
  return e;
}

/*
** Initialize and deinitialize the operating system interface.
*/
SQLITE_API int SQLITE_APICALL sqlite3_os_init(void){
  static sqlite3_vfs winVfs = {
    3,                     /* iVersion */
    sizeof(winFile),       /* szOsFile */
    SQLITE_WIN32_MAX_PATH_BYTES, /* mxPathname */
    0,                     /* pNext */
    "win32",               /* zName */
    &winAppData,           /* pAppData */
................................................................................
#if defined(SQLITE_WIN32_HAS_WIDE)
  sqlite3_vfs_register(&winLongPathNolockVfs, 0);
#endif

  return SQLITE_OK;
}

SQLITE_API int SQLITE_APICALL sqlite3_os_end(void){
#if SQLITE_OS_WINRT
  if( sleepObj!=NULL ){
    osCloseHandle(sleepObj);
    sleepObj = NULL;
  }
#endif
  return SQLITE_OK;
................................................................................
  Pgno pgno,                  /* Page number obtained */
  sqlite3_pcache_page *pPage  /* Page obtained by prior PcacheFetch() call */
){
  PgHdr *pPgHdr;
  assert( pPage!=0 );
  pPgHdr = (PgHdr*)pPage->pExtra;
  assert( pPgHdr->pPage==0 );
  memset(pPgHdr, 0, sizeof(PgHdr));
  pPgHdr->pPage = pPage;
  pPgHdr->pData = pPage->pBuf;
  pPgHdr->pExtra = (void *)&pPgHdr[1];
  memset(pPgHdr->pExtra, 0, pCache->szExtra);
  pPgHdr->pCache = pCache;
  pPgHdr->pgno = pgno;
  pPgHdr->flags = PGHDR_CLEAN;
................................................................................
**
** The PCache mutex must be held when this function is called.
*/
static void pcache1TruncateUnsafe(
  PCache1 *pCache,             /* The cache to truncate */
  unsigned int iLimit          /* Drop pages with this pgno or larger */
){
  TESTONLY( unsigned int nPage = 0; )  /* To assert pCache->nPage is correct */
  unsigned int h;
  assert( sqlite3_mutex_held(pCache->pGroup->mutex) );













  for(h=0; h<pCache->nHash; h++){



    PgHdr1 **pp = &pCache->apHash[h]; 
    PgHdr1 *pPage;


    while( (pPage = *pp)!=0 ){
      if( pPage->iKey>=iLimit ){
        pCache->nPage--;
        *pp = pPage->pNext;
        if( !pPage->isPinned ) pcache1PinPage(pPage);
        pcache1FreePage(pPage);
      }else{
        pp = &pPage->pNext;
        TESTONLY( nPage++; )
      }
    }


  }
  assert( pCache->nPage==nPage );
}

/******************************************************************************/
/******** sqlite3_pcache Methods **********************************************/

/*
** Implementation of the sqlite3_pcache.xInit method.
................................................................................
** Destroy a cache allocated using pcache1Create().
*/
static void pcache1Destroy(sqlite3_pcache *p){
  PCache1 *pCache = (PCache1 *)p;
  PGroup *pGroup = pCache->pGroup;
  assert( pCache->bPurgeable || (pCache->nMax==0 && pCache->nMin==0) );
  pcache1EnterMutex(pGroup);
  pcache1TruncateUnsafe(pCache, 0);
  assert( pGroup->nMaxPage >= pCache->nMax );
  pGroup->nMaxPage -= pCache->nMax;
  assert( pGroup->nMinPage >= pCache->nMin );
  pGroup->nMinPage -= pCache->nMin;
  pGroup->mxPinned = pGroup->nMaxPage + 10 - pGroup->nMinPage;
  pcache1EnforceMaxPage(pCache);
  pcache1LeaveMutex(pGroup);
................................................................................
** then savepoint iSavepoint is also destroyed.
**
** This function may return SQLITE_NOMEM if a memory allocation fails,
** or an IO error code if an IO error occurs while rolling back a 
** savepoint. If no errors occur, SQLITE_OK is returned.
*/ 
SQLITE_PRIVATE int sqlite3PagerSavepoint(Pager *pPager, int op, int iSavepoint){
  int rc = pPager->errCode;       /* Return code */





  assert( op==SAVEPOINT_RELEASE || op==SAVEPOINT_ROLLBACK );
  assert( iSavepoint>=0 || op==SAVEPOINT_ROLLBACK );

  if( rc==SQLITE_OK && iSavepoint<pPager->nSavepoint ){
    int ii;            /* Iterator variable */
    int nNew;          /* Number of remaining savepoints after this op. */
................................................................................
    ** the database file, so the playback operation can be skipped.
    */
    else if( pagerUseWal(pPager) || isOpen(pPager->jfd) ){
      PagerSavepoint *pSavepoint = (nNew==0)?0:&pPager->aSavepoint[nNew-1];
      rc = pagerPlaybackSavepoint(pPager, pSavepoint);
      assert(rc!=SQLITE_DONE);
    }














  }

  return rc;
}

/*
** Return the full pathname of the database file.
................................................................................
** in backup.c maintains the content of this variable. This module
** uses it opaquely as an argument to sqlite3BackupRestart() and
** sqlite3BackupUpdate() only.
*/
SQLITE_PRIVATE sqlite3_backup **sqlite3PagerBackupPtr(Pager *pPager){
  return &pPager->pBackup;
}












#ifndef SQLITE_OMIT_WAL
/*
** This function is called when the user invokes "PRAGMA wal_checkpoint",
** "PRAGMA wal_blocking_checkpoint" or calls the sqlite3_wal_checkpoint()
** or wal_blocking_checkpoint() API functions.
**
................................................................................
** is empty, return 0.
*/
SQLITE_PRIVATE int sqlite3PagerWalFramesize(Pager *pPager){
  assert( pPager->eState>=PAGER_READER );
  return sqlite3WalFramesize(pPager->pWal);
}
#endif


#endif /* SQLITE_OMIT_DISKIO */

/************** End of pager.c ***********************************************/
/************** Begin file wal.c *********************************************/
/*
** 2010 February 1
................................................................................
  pWal->pSnapshot = (WalIndexHdr*)pSnapshot;
}

/* 
** Return a +ve value if snapshot p1 is newer than p2. A -ve value if
** p1 is older than p2 and zero if p1 and p2 are the same snapshot.
*/
SQLITE_API int SQLITE_APICALL sqlite3_snapshot_cmp(sqlite3_snapshot *p1, sqlite3_snapshot *p2){
  WalIndexHdr *pHdr1 = (WalIndexHdr*)p1;
  WalIndexHdr *pHdr2 = (WalIndexHdr*)p2;

  /* aSalt[0] is a copy of the value stored in the wal file header. It
  ** is incremented each time the wal file is restarted.  */
  if( pHdr1->aSalt[0]<pHdr2->aSalt[0] ) return -1;
  if( pHdr1->aSalt[0]>pHdr2->aSalt[0] ) return +1;
................................................................................
/*
** Enable or disable the shared pager and schema features.
**
** This routine has no effect on existing database connections.
** The shared cache setting effects only future calls to
** sqlite3_open(), sqlite3_open16(), or sqlite3_open_v2().
*/
SQLITE_API int SQLITE_APICALL sqlite3_enable_shared_cache(int enable){
  sqlite3GlobalConfig.sharedCacheEnabled = enable;
  return SQLITE_OK;
}
#endif



................................................................................
  const void *pKey,   /* Packed key if the btree is an index */
  i64 nKey,           /* Integer key for tables.  Size of pKey for indices */
  int bias,           /* Bias search to the high end */
  int *pRes           /* Write search results here */
){
  int rc;                    /* Status code */
  UnpackedRecord *pIdxKey;   /* Unpacked index key */
  char aSpace[200];          /* Temp space for pIdxKey - to avoid a malloc */
  char *pFree = 0;

  if( pKey ){
    assert( nKey==(i64)(int)nKey );
    pIdxKey = sqlite3VdbeAllocUnpackedRecord(
        pCur->pKeyInfo, aSpace, sizeof(aSpace), &pFree
    );
................................................................................
  ** spot on the list where iStart should be inserted.
  */
  hdr = pPage->hdrOffset;
  iPtr = hdr + 1;
  if( data[iPtr+1]==0 && data[iPtr]==0 ){
    iFreeBlk = 0;  /* Shortcut for the case when the freelist is empty */
  }else{
    while( (iFreeBlk = get2byte(&data[iPtr]))>0 && iFreeBlk<iStart ){


      if( iFreeBlk<iPtr+4 ) return SQLITE_CORRUPT_BKPT;

      iPtr = iFreeBlk;
    }
    if( iFreeBlk>iLast ) return SQLITE_CORRUPT_BKPT;
    assert( iFreeBlk>iPtr || iFreeBlk==0 );
  
    /* At this point:
    **    iFreeBlk:   First freeblock after iStart, or zero if none
................................................................................
    nPayload = pX->nData + pX->nZero;
    pSrc = pX->pData;
    nSrc = pX->nData;
    assert( pPage->intKeyLeaf ); /* fillInCell() only called for leaves */
    nHeader += putVarint32(&pCell[nHeader], nPayload);
    nHeader += putVarint(&pCell[nHeader], *(u64*)&pX->nKey);
  }else{
    assert( pX->nData==0 );
    assert( pX->nZero==0 );
    assert( pX->nKey<=0x7fffffff && pX->pKey!=0 );
    nSrc = nPayload = (int)pX->nKey;
    pSrc = pX->pKey;
    nHeader += putVarint32(&pCell[nHeader], nPayload);
  }
  
  /* Fill in the payload */
................................................................................
    }
#endif
  }
}

/*
** A CellArray object contains a cache of pointers and sizes for a
** consecutive sequence of cells that might be held multiple pages.
*/
typedef struct CellArray CellArray;
struct CellArray {
  int nCell;              /* Number of cells in apCell[] */
  MemPage *pRef;          /* Reference page */
  u8 **apCell;            /* All cells begin balanced */
  u16 *szCell;            /* Local size of all cells in apCell[] */
................................................................................
** function. If an error occurs while doing so, return 0 and write an 
** error message to pErrorDb.
*/
static Btree *findBtree(sqlite3 *pErrorDb, sqlite3 *pDb, const char *zDb){
  int i = sqlite3FindDbName(pDb, zDb);

  if( i==1 ){
    Parse *pParse;
    int rc = 0;
    pParse = sqlite3StackAllocZero(pErrorDb, sizeof(*pParse));
    if( pParse==0 ){
      sqlite3ErrorWithMsg(pErrorDb, SQLITE_NOMEM, "out of memory");
      rc = SQLITE_NOMEM_BKPT;
    }else{
      pParse->db = pDb;
      if( sqlite3OpenTempDatabase(pParse) ){
        sqlite3ErrorWithMsg(pErrorDb, pParse->rc, "%s", pParse->zErrMsg);
        rc = SQLITE_ERROR;
      }
      sqlite3DbFree(pErrorDb, pParse->zErrMsg);
      sqlite3ParserReset(pParse);
      sqlite3StackFree(pErrorDb, pParse);
    }
    if( rc ){
      return 0;
    }
  }

  if( i<0 ){
    sqlite3ErrorWithMsg(pErrorDb, SQLITE_ERROR, "unknown database %s", zDb);
................................................................................
** Create an sqlite3_backup process to copy the contents of zSrcDb from
** connection handle pSrcDb to zDestDb in pDestDb. If successful, return
** a pointer to the new sqlite3_backup object.
**
** If an error occurs, NULL is returned and an error code and error message
** stored in database handle pDestDb.
*/
SQLITE_API sqlite3_backup *SQLITE_APICALL sqlite3_backup_init(
  sqlite3* pDestDb,                     /* Database to write to */
  const char *zDestDb,                  /* Name of database within pDestDb */
  sqlite3* pSrcDb,                      /* Database connection to read from */
  const char *zSrcDb                    /* Name of database within pSrcDb */
){
  sqlite3_backup *p;                    /* Value to return */

................................................................................
    p->pDest = findBtree(pDestDb, pDestDb, zDestDb);
    p->pDestDb = pDestDb;
    p->pSrcDb = pSrcDb;
    p->iNext = 1;
    p->isAttached = 0;

    if( 0==p->pSrc || 0==p->pDest 
     || setDestPgsz(p)==SQLITE_NOMEM 
     || checkReadTransaction(pDestDb, p->pDest)!=SQLITE_OK 
     ){
      /* One (or both) of the named databases did not exist or an OOM
      ** error was hit. Or there is a transaction open on the destination
      ** database. The error has already been written into the pDestDb 
      ** handle. All that is left to do here is free the sqlite3_backup 
      ** structure.  */
................................................................................
  *pp = p;
  p->isAttached = 1;
}

/*
** Copy nPage pages from the source b-tree to the destination.
*/
SQLITE_API int SQLITE_APICALL sqlite3_backup_step(sqlite3_backup *p, int nPage){
  int rc;
  int destMode;       /* Destination journal mode */
  int pgszSrc = 0;    /* Source page size */
  int pgszDest = 0;   /* Destination page size */

#ifdef SQLITE_ENABLE_API_ARMOR
  if( p==0 ) return SQLITE_MISUSE_BKPT;
................................................................................
    */
    if( p->pDestDb && p->pSrc->pBt->inTransaction==TRANS_WRITE ){
      rc = SQLITE_BUSY;
    }else{
      rc = SQLITE_OK;
    }

    /* Lock the destination database, if it is not locked already. */
    if( SQLITE_OK==rc && p->bDestLocked==0
     && SQLITE_OK==(rc = sqlite3BtreeBeginTrans(p->pDest, 2)) 
    ){
      p->bDestLocked = 1;
      sqlite3BtreeGetMeta(p->pDest, BTREE_SCHEMA_VERSION, &p->iDestSchema);
    }

    /* If there is no open read-transaction on the source database, open
    ** one now. If a transaction is opened here, then it will be closed
    ** before this function exits.
    */
    if( rc==SQLITE_OK && 0==sqlite3BtreeIsInReadTrans(p->pSrc) ){
      rc = sqlite3BtreeBeginTrans(p->pSrc, 0);
      bCloseTrans = 1;
    }



















    /* Do not allow backup if the destination database is in WAL mode
    ** and the page sizes are different between source and destination */
    pgszSrc = sqlite3BtreeGetPageSize(p->pSrc);
    pgszDest = sqlite3BtreeGetPageSize(p->pDest);
    destMode = sqlite3PagerGetJournalMode(sqlite3BtreePager(p->pDest));
    if( SQLITE_OK==rc && destMode==PAGER_JOURNALMODE_WAL && pgszSrc!=pgszDest ){
................................................................................
  sqlite3_mutex_leave(p->pSrcDb->mutex);
  return rc;
}

/*
** Release all resources associated with an sqlite3_backup* handle.
*/
SQLITE_API int SQLITE_APICALL sqlite3_backup_finish(sqlite3_backup *p){
  sqlite3_backup **pp;                 /* Ptr to head of pagers backup list */
  sqlite3 *pSrcDb;                     /* Source database connection */
  int rc;                              /* Value to return */

  /* Enter the mutexes */
  if( p==0 ) return SQLITE_OK;
  pSrcDb = p->pSrcDb;
................................................................................
  return rc;
}

/*
** Return the number of pages still to be backed up as of the most recent
** call to sqlite3_backup_step().
*/
SQLITE_API int SQLITE_APICALL sqlite3_backup_remaining(sqlite3_backup *p){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( p==0 ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
  return p->nRemaining;
}

/*
** Return the total number of pages in the source database as of the most 
** recent call to sqlite3_backup_step().
*/
SQLITE_API int SQLITE_APICALL sqlite3_backup_pagecount(sqlite3_backup *p){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( p==0 ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
  return p->nPagecount;
................................................................................
#endif

  /* 0x7FFFFFFF is the hard limit for the number of pages in a database
  ** file. By passing this as the number of pages to copy to
  ** sqlite3_backup_step(), we can guarantee that the copy finishes 
  ** within a single call (unless an error occurs). The assert() statement
  ** checks this assumption - (p->rc) should be set to either SQLITE_DONE 
  ** or an error code.
  */
  sqlite3_backup_step(&b, 0x7FFFFFFF);
  assert( b.rc!=SQLITE_OK );

  rc = sqlite3_backup_finish(&b);
  if( rc==SQLITE_OK ){
    pTo->pBt->btsFlags &= ~BTS_PAGESIZE_FIXED;


  }

  assert( sqlite3BtreeIsInTrans(pTo)==0 );
copy_finished:
  sqlite3BtreeLeave(pFrom);
  sqlite3BtreeLeave(pTo);
  return rc;
................................................................................
/*
** Change pMem so that its MEM_Str or MEM_Blob value is stored in
** MEM.zMalloc, where it can be safely written.
**
** Return SQLITE_OK on success or SQLITE_NOMEM if malloc fails.
*/
SQLITE_PRIVATE int sqlite3VdbeMemMakeWriteable(Mem *pMem){
  int f;
  assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) );
  assert( (pMem->flags&MEM_RowSet)==0 );

  ExpandBlob(pMem);
  f = pMem->flags;
  if( (f&(MEM_Str|MEM_Blob)) && (pMem->szMalloc==0 || pMem->z!=pMem->zMalloc) ){
    if( sqlite3VdbeMemGrow(pMem, pMem->n + 2, 1) ){
      return SQLITE_NOMEM_BKPT;
    }
    pMem->z[pMem->n] = 0;
    pMem->z[pMem->n+1] = 0;
    pMem->flags |= MEM_Term;

  }
  pMem->flags &= ~MEM_Ephem;
#ifdef SQLITE_DEBUG
  pMem->pScopyFrom = 0;
#endif

  return SQLITE_OK;
................................................................................

/*
** If the given Mem* has a zero-filled tail, turn it into an ordinary
** blob stored in dynamically allocated space.
*/
#ifndef SQLITE_OMIT_INCRBLOB
SQLITE_PRIVATE int sqlite3VdbeMemExpandBlob(Mem *pMem){
  if( pMem->flags & MEM_Zero ){
    int nByte;

    assert( pMem->flags&MEM_Blob );
    assert( (pMem->flags&MEM_RowSet)==0 );
    assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) );

    /* Set nByte to the number of bytes required to store the expanded blob. */
    nByte = pMem->n + pMem->u.nZero;
    if( nByte<=0 ){
      nByte = 1;
    }
    if( sqlite3VdbeMemGrow(pMem, nByte, 1) ){
      return SQLITE_NOMEM_BKPT;
    }

    memset(&pMem->z[pMem->n], 0, pMem->u.nZero);
    pMem->n += pMem->u.nZero;
    pMem->flags &= ~(MEM_Zero|MEM_Term);
  }
  return SQLITE_OK;
}
#endif

/*
** It is already known that pMem contains an unterminated string.
** Add the zero terminator.
................................................................................
  assert( !(fg&(MEM_Str|MEM_Blob)) );
  assert( fg&(MEM_Int|MEM_Real) );
  assert( (pMem->flags&MEM_RowSet)==0 );
  assert( EIGHT_BYTE_ALIGNMENT(pMem) );


  if( sqlite3VdbeMemClearAndResize(pMem, nByte) ){

    return SQLITE_NOMEM_BKPT;
  }

  /* For a Real or Integer, use sqlite3_snprintf() to produce the UTF-8
  ** string representation of the value. Then, if the required encoding
  ** is UTF-16le or UTF-16be do a translation.
  ** 
................................................................................
    }else{
      pMem->u.r = sqlite3VdbeRealValue(pMem);
      MemSetTypeFlag(pMem, MEM_Real);
      sqlite3VdbeIntegerAffinity(pMem);
    }
  }
  assert( (pMem->flags & (MEM_Int|MEM_Real|MEM_Null))!=0 );
  pMem->flags &= ~(MEM_Str|MEM_Blob);
  return SQLITE_OK;
}

/*
** Cast the datatype of the value in pMem according to the affinity
** "aff".  Casting is different from applying affinity in that a cast
** is forced.  In other words, the value is converted into the desired
................................................................................
SQLITE_PRIVATE void sqlite3VdbeMemCast(Mem *pMem, u8 aff, u8 encoding){
  if( pMem->flags & MEM_Null ) return;
  switch( aff ){
    case SQLITE_AFF_BLOB: {   /* Really a cast to BLOB */
      if( (pMem->flags & MEM_Blob)==0 ){
        sqlite3ValueApplyAffinity(pMem, SQLITE_AFF_TEXT, encoding);
        assert( pMem->flags & MEM_Str || pMem->db->mallocFailed );
        MemSetTypeFlag(pMem, MEM_Blob);
      }else{
        pMem->flags &= ~(MEM_TypeMask&~MEM_Blob);
      }
      break;
    }
    case SQLITE_AFF_NUMERIC: {
      sqlite3VdbeMemNumerify(pMem);
................................................................................
  assert( pVal!=0 );
  assert( pVal->db==0 || sqlite3_mutex_held(pVal->db->mutex) );
  assert( (enc&3)==(enc&~SQLITE_UTF16_ALIGNED) );
  assert( (pVal->flags & MEM_RowSet)==0 );
  assert( (pVal->flags & (MEM_Null))==0 );
  if( pVal->flags & (MEM_Blob|MEM_Str) ){
    pVal->flags |= MEM_Str;
    if( pVal->flags & MEM_Zero ){
      sqlite3VdbeMemExpandBlob(pVal);
    }
    if( pVal->enc != (enc & ~SQLITE_UTF16_ALIGNED) ){
      sqlite3VdbeChangeEncoding(pVal, enc & ~SQLITE_UTF16_ALIGNED);
    }
    if( (enc & SQLITE_UTF16_ALIGNED)!=0 && 1==(1&SQLITE_PTR_TO_INT(pVal->z)) ){
      assert( (pVal->flags & (MEM_Ephem|MEM_Static))!=0 );
      if( sqlite3VdbeMemMakeWriteable(pVal)!=SQLITE_OK ){
        return 0;
................................................................................
  int op;
  char *zVal = 0;
  sqlite3_value *pVal = 0;
  int negInt = 1;
  const char *zNeg = "";
  int rc = SQLITE_OK;

  if( !pExpr ){
    *ppVal = 0;
    return SQLITE_OK;
  }
  while( (op = pExpr->op)==TK_UPLUS || op==TK_SPAN ) pExpr = pExpr->pLeft;
  if( NEVER(op==TK_REGISTER) ) op = pExpr->op2;

  /* Compressed expressions only appear when parsing the DEFAULT clause
  ** on a table column definition, and hence only when pCtx==0.  This
  ** check ensures that an EP_TokenOnly expression is never passed down
  ** into valueFromFunction(). */
................................................................................
SQLITE_PRIVATE int sqlite3ValueFromExpr(
  sqlite3 *db,              /* The database connection */
  Expr *pExpr,              /* The expression to evaluate */
  u8 enc,                   /* Encoding to use */
  u8 affinity,              /* Affinity to use */
  sqlite3_value **ppVal     /* Write the new value here */
){
  return valueFromExpr(db, pExpr, enc, affinity, ppVal, 0);
}

#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
/*
** The implementation of the sqlite_record() function. This function accepts
** a single argument of any type. The return value is a formatted database 
** record (a blob) containing the argument value.
................................................................................
}

/*
** This function is used to allocate and populate UnpackedRecord 
** structures intended to be compared against sample index keys stored 
** in the sqlite_stat4 table.
**
** A single call to this function attempts to populates field iVal (leftmost 
** is 0 etc.) of the unpacked record with a value extracted from expression
** pExpr. Extraction of values is possible if:
**
**  * (pExpr==0). In this case the value is assumed to be an SQL NULL,
**
**  * The expression is a bound variable, and this is a reprepare, or
**
**  * The sqlite3ValueFromExpr() function is able to extract a value 
**    from the expression (i.e. the expression is a literal value).
**
** If a value can be extracted, the affinity passed as the 5th argument
** is applied to it before it is copied into the UnpackedRecord. Output
** parameter *pbOk is set to true if a value is extracted, or false 
** otherwise.




**
** When this function is called, *ppRec must either point to an object
** allocated by an earlier call to this function, or must be NULL. If it
** is NULL and a value can be successfully extracted, a new UnpackedRecord
** is allocated (and *ppRec set to point to it) before returning.
**
** Unless an error is encountered, SQLITE_OK is returned. It is not an
................................................................................
** occur, an SQLite error code is returned.
*/
SQLITE_PRIVATE int sqlite3Stat4ProbeSetValue(
  Parse *pParse,                  /* Parse context */
  Index *pIdx,                    /* Index being probed */
  UnpackedRecord **ppRec,         /* IN/OUT: Probe record */
  Expr *pExpr,                    /* The expression to extract a value from */
  u8 affinity,                    /* Affinity to use */
  int iVal,                       /* Array element to populate */
  int *pbOk                       /* OUT: True if value was extracted */
){
  int rc;
  sqlite3_value *pVal = 0;



  struct ValueNewStat4Ctx alloc;

  alloc.pParse = pParse;
  alloc.pIdx = pIdx;
  alloc.ppRec = ppRec;





  alloc.iVal = iVal;




  rc = stat4ValueFromExpr(pParse, pExpr, affinity, &alloc, &pVal);
  assert( pVal==0 || pVal->db==pParse->db );
  *pbOk = (pVal!=0);



  return rc;
}

/*
** Attempt to extract a value from expression pExpr using the methods
** as described for sqlite3Stat4ProbeSetValue() above. 
**
................................................................................

/*
** Create a new virtual database engine.
*/
SQLITE_PRIVATE Vdbe *sqlite3VdbeCreate(Parse *pParse){
  sqlite3 *db = pParse->db;
  Vdbe *p;
  p = sqlite3DbMallocZero(db, sizeof(Vdbe) );
  if( p==0 ) return 0;

  p->db = db;
  if( db->pVdbe ){
    db->pVdbe->pPrev = p;
  }
  p->pNext = db->pVdbe;
  p->pPrev = 0;
  db->pVdbe = p;
................................................................................
#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
  pOp->zComment = 0;
#endif
#ifdef SQLITE_DEBUG
  if( p->db->flags & SQLITE_VdbeAddopTrace ){
    int jj, kk;
    Parse *pParse = p->pParse;
    for(jj=kk=0; jj<SQLITE_N_COLCACHE; jj++){
      struct yColCache *x = pParse->aColCache + jj;
      if( x->iLevel>pParse->iCacheLevel || x->iReg==0 ) continue;
      printf(" r[%d]={%d:%d}", x->iReg, x->iTable, x->iColumn);
      kk++;
    }
    if( kk ) printf("\n");
    sqlite3VdbePrintOp(0, i, &p->aOp[i]);
    test_addop_breakpoint();
  }
................................................................................
  int j = ADDR(x);
  assert( v->magic==VDBE_MAGIC_INIT );
  assert( j<p->nLabel );
  assert( j>=0 );
  if( p->aLabel ){
    p->aLabel[j] = v->nOp;
  }
  p->iFixedOp = v->nOp - 1;
}

/*
** Mark the VDBE as one that can only be run one time.
*/
SQLITE_PRIVATE void sqlite3VdbeRunOnlyOnce(Vdbe *p){
  p->runOnlyOnce = 1;
................................................................................
SQLITE_PRIVATE void sqlite3VdbeChangeP2(Vdbe *p, u32 addr, int val){
  sqlite3VdbeGetOp(p,addr)->p2 = val;
}
SQLITE_PRIVATE void sqlite3VdbeChangeP3(Vdbe *p, u32 addr, int val){
  sqlite3VdbeGetOp(p,addr)->p3 = val;
}
SQLITE_PRIVATE void sqlite3VdbeChangeP5(Vdbe *p, u8 p5){

  if( !p->db->mallocFailed ) p->aOp[p->nOp-1].p5 = p5;
}

/*
** Change the P2 operand of instruction addr so that it points to
** the address of the next instruction to be coded.
*/
SQLITE_PRIVATE void sqlite3VdbeJumpHere(Vdbe *p, int addr){
  p->pParse->iFixedOp = p->nOp - 1;
  sqlite3VdbeChangeP2(p, addr, p->nOp);
}


/*
** If the input FuncDef structure is ephemeral, then free it.  If
** the FuncDef is not ephermal, then do nothing.
................................................................................
}

/*
** If the last opcode is "op" and it is not a jump destination,
** then remove it.  Return true if and only if an opcode was removed.
*/
SQLITE_PRIVATE int sqlite3VdbeDeletePriorOpcode(Vdbe *p, u8 op){
  if( (p->nOp-1)>(p->pParse->iFixedOp) && p->aOp[p->nOp-1].opcode==op ){
    return sqlite3VdbeChangeToNoop(p, p->nOp-1);
  }else{
    return 0;
  }
}

/*
................................................................................
  char *zTemp,       /* Write result here */
  int nTemp          /* Space available in zTemp[] */
){
  const char *zOpName;
  const char *zSynopsis;
  int nOpName;
  int ii, jj;

  zOpName = sqlite3OpcodeName(pOp->opcode);
  nOpName = sqlite3Strlen30(zOpName);
  if( zOpName[nOpName+1] ){
    int seenCom = 0;
    char c;
    zSynopsis = zOpName += nOpName + 1;








    for(ii=jj=0; jj<nTemp-1 && (c = zSynopsis[ii])!=0; ii++){
      if( c=='P' ){
        c = zSynopsis[++ii];
        if( c=='4' ){
          sqlite3_snprintf(nTemp-jj, zTemp+jj, "%s", zP4);
        }else if( c=='X' ){
          sqlite3_snprintf(nTemp-jj, zTemp+jj, "%s", pOp->zComment);
................................................................................
  fprintf(pOut, zFormat1, pc, 
      sqlite3OpcodeName(pOp->opcode), pOp->p1, pOp->p2, pOp->p3, zP4, pOp->p5,
      zCom
  );
  fflush(pOut);
}
#endif
















/*
** Release an array of N Mem elements
*/
static void releaseMemArray(Mem *p, int N){
  if( p && N ){
    Mem *pEnd = &p[N];
................................................................................
    if( sqlite3VdbeMemClearAndResize(pMem, 100) ){ /* P4 */
      assert( p->db->mallocFailed );
      return SQLITE_ERROR;
    }
    pMem->flags = MEM_Str|MEM_Term;
    zP4 = displayP4(pOp, pMem->z, pMem->szMalloc);
    if( zP4!=pMem->z ){

      sqlite3VdbeMemSetStr(pMem, zP4, -1, SQLITE_UTF8, 0);
    }else{
      assert( pMem->z!=0 );
      pMem->n = sqlite3Strlen30(pMem->z);
      pMem->enc = SQLITE_UTF8;
    }
    pMem++;
................................................................................
** running it.
*/
SQLITE_PRIVATE void sqlite3VdbeRewind(Vdbe *p){
#if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE)
  int i;
#endif
  assert( p!=0 );
  assert( p->magic==VDBE_MAGIC_INIT );

  /* There should be at least one opcode.
  */
  assert( p->nOp>0 );

  /* Set the magic to VDBE_MAGIC_RUN sooner rather than later. */
  p->magic = VDBE_MAGIC_RUN;
................................................................................
  Parse *pParse                  /* Parsing context */
){
  sqlite3 *db;                   /* The database connection */
  int nVar;                      /* Number of parameters */
  int nMem;                      /* Number of VM memory registers */
  int nCursor;                   /* Number of cursors required */
  int nArg;                      /* Number of arguments in subprograms */
  int nOnce;                     /* Number of OP_Once instructions */
  int n;                         /* Loop counter */
  struct ReusableSpace x;        /* Reusable bulk memory */

  assert( p!=0 );
  assert( p->nOp>0 );
  assert( pParse!=0 );
  assert( p->magic==VDBE_MAGIC_INIT );
................................................................................
  assert( pParse==p->pParse );
  db = p->db;
  assert( db->mallocFailed==0 );
  nVar = pParse->nVar;
  nMem = pParse->nMem;
  nCursor = pParse->nTab;
  nArg = pParse->nMaxArg;
  nOnce = pParse->nOnce;
  if( nOnce==0 ) nOnce = 1; /* Ensure at least one byte in p->aOnceFlag[] */
  
  /* Each cursor uses a memory cell.  The first cursor (cursor 0) can
  ** use aMem[0] which is not otherwise used by the VDBE program.  Allocate
  ** space at the end of aMem[] for cursors 1 and greater.
  ** See also: allocateCursor().
  */
  nMem += nCursor;
................................................................................
  ** of the prepared statement.
  */
  n = ROUND8(sizeof(Op)*p->nOp);              /* Bytes of opcode memory used */
  x.pSpace = &((u8*)p->aOp)[n];               /* Unused opcode memory */
  assert( EIGHT_BYTE_ALIGNMENT(x.pSpace) );
  x.nFree = ROUNDDOWN8(pParse->szOpAlloc - n);  /* Bytes of unused memory */
  assert( x.nFree>=0 );
  if( x.nFree>0 ){
    memset(x.pSpace, 0, x.nFree);
    assert( EIGHT_BYTE_ALIGNMENT(&x.pSpace[x.nFree]) );
  }

  resolveP2Values(p, &nArg);
  p->usesStmtJournal = (u8)(pParse->isMultiWrite && pParse->mayAbort);
  if( pParse->explain && nMem<10 ){
    nMem = 10;
  }
  p->expired = 0;
................................................................................
  */
  do {
    x.nNeeded = 0;
    p->aMem = allocSpace(&x, p->aMem, nMem*sizeof(Mem));
    p->aVar = allocSpace(&x, p->aVar, nVar*sizeof(Mem));
    p->apArg = allocSpace(&x, p->apArg, nArg*sizeof(Mem*));
    p->apCsr = allocSpace(&x, p->apCsr, nCursor*sizeof(VdbeCursor*));
    p->aOnceFlag = allocSpace(&x, p->aOnceFlag, nOnce);
#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
    p->anExec = allocSpace(&x, p->anExec, p->nOp*sizeof(i64));
#endif
    if( x.nNeeded==0 ) break;
    x.pSpace = p->pFree = sqlite3DbMallocZero(db, x.nNeeded);
    x.nFree = x.nNeeded;
  }while( !db->mallocFailed );

  p->nCursor = nCursor;
  p->nOnceFlag = nOnce;
  if( p->aVar ){
    p->nVar = (ynVar)nVar;
    for(n=0; n<nVar; n++){
      p->aVar[n].flags = MEM_Null;
      p->aVar[n].db = db;
    }
  }
  p->nzVar = pParse->nzVar;
  p->azVar = pParse->azVar;
  pParse->nzVar =  0;
  pParse->azVar = 0;
  if( p->aMem ){



    p->nMem = nMem;
    for(n=0; n<nMem; n++){
      p->aMem[n].flags = MEM_Undefined;
      p->aMem[n].db = db;
    }









  }
  p->explain = pParse->explain;
  sqlite3VdbeRewind(p);
}

/*
** Close a VDBE cursor and release all the resources that cursor 
** happens to hold.
*/
................................................................................
*/
SQLITE_PRIVATE int sqlite3VdbeFrameRestore(VdbeFrame *pFrame){
  Vdbe *v = pFrame->v;
  closeCursorsInFrame(v);
#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
  v->anExec = pFrame->anExec;
#endif
  v->aOnceFlag = pFrame->aOnceFlag;
  v->nOnceFlag = pFrame->nOnceFlag;
  v->aOp = pFrame->aOp;
  v->nOp = pFrame->nOp;
  v->aMem = pFrame->aMem;
  v->nMem = pFrame->nMem;
  v->apCsr = pFrame->apCsr;
  v->nCursor = pFrame->nCursor;
  v->db->lastRowid = pFrame->lastRowid;
................................................................................
  int n;
  sqlite3 *db = p->db;

  releaseMemArray(p->aColName, p->nResColumn*COLNAME_N);
  sqlite3DbFree(db, p->aColName);
  n = nResColumn*COLNAME_N;
  p->nResColumn = (u16)nResColumn;
  p->aColName = pColName = (Mem*)sqlite3DbMallocZero(db, sizeof(Mem)*n );
  if( p->aColName==0 ) return;
  while( n-- > 0 ){
    pColName->flags = MEM_Null;
    pColName->db = p->db;
    pColName++;
  }
}

/*
** Set the name of the idx'th column to be returned by the SQL statement.
** zName must be a pointer to a nul terminated string.
**
** This call must be made after a call to sqlite3VdbeSetNumCols().
................................................................................
  ** state.  We need to rollback the statement transaction, if there is
  ** one, or the complete transaction if there is no statement transaction.
  */

  if( db->mallocFailed ){
    p->rc = SQLITE_NOMEM_BKPT;
  }
  if( p->aOnceFlag ) memset(p->aOnceFlag, 0, p->nOnceFlag);
  closeAllCursors(p);
  if( p->magic!=VDBE_MAGIC_RUN ){
    return SQLITE_OK;
  }
  checkActiveVdbeCnt(db);

  /* No commit or rollback needed if the program never started or if the
................................................................................
        sqlite3VdbePrintOp(out, i, &p->aOp[i]);
      }
      fclose(out);
    }
  }
#endif
  p->iCurrentTime = 0;
  p->magic = VDBE_MAGIC_INIT;
  return p->rc & db->errMask;
}
 
/*
** Clean up and delete a VDBE after execution.  Return an integer which is
** the result code.  Write any error message text into *pzErrMsg.
*/
................................................................................
** VdbeDelete() also unlinks the Vdbe from the list of VMs associated with
** the database connection and frees the object itself.
*/
SQLITE_PRIVATE void sqlite3VdbeClearObject(sqlite3 *db, Vdbe *p){
  SubProgram *pSub, *pNext;
  int i;
  assert( p->db==0 || p->db==db );
  releaseMemArray(p->aVar, p->nVar);
  releaseMemArray(p->aColName, p->nResColumn*COLNAME_N);
  for(pSub=p->pProgram; pSub; pSub=pNext){
    pNext = pSub->pNext;
    vdbeFreeOpArray(db, pSub->aOp, pSub->nOp);
    sqlite3DbFree(db, pSub);
  }


  for(i=p->nzVar-1; i>=0; i--) sqlite3DbFree(db, p->azVar[i]);
  sqlite3DbFree(db, p->azVar);


  vdbeFreeOpArray(db, p->aOp, p->nOp);
  sqlite3DbFree(db, p->aColName);
  sqlite3DbFree(db, p->zSql);
  sqlite3DbFree(db, p->pFree);
#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
  for(i=0; i<p->nScan; i++){
    sqlite3DbFree(db, p->aScan[i].zName);
  }
  sqlite3DbFree(db, p->aScan);
#endif
}
................................................................................
    rc = pColl->xCmp(pColl->pUser, n1, v1, n2, v2);
    if( (v1==0 || v2==0) && prcErr ) *prcErr = SQLITE_NOMEM_BKPT;
    sqlite3VdbeMemRelease(&c1);
    sqlite3VdbeMemRelease(&c2);
    return rc;
  }
}













/*
** Compare two blobs.  Return negative, zero, or positive if the first
** is less than, equal to, or greater than the second, respectively.
** If one blob is a prefix of the other, then the shorter is the lessor.
*/
static SQLITE_NOINLINE int sqlite3BlobCompare(const Mem *pB1, const Mem *pB2){






















  int c = memcmp(pB1->z, pB2->z, pB1->n>pB2->n ? pB2->n : pB1->n);
  if( c ) return c;
  return pB1->n - pB2->n;
}

/*
** Do a comparison between a 64-bit signed integer and a 64-bit floating-point
** number.  Return negative, zero, or positive if the first (i64) is less than,
** equal to, or greater than the second (double).
*/
................................................................................
          if( rc==0 ) rc = mem1.n - pRhs->n; 
        }
      }
    }

    /* RHS is a blob */
    else if( pRhs->flags & MEM_Blob ){

      getVarint32(&aKey1[idx1], serial_type);
      testcase( serial_type==12 );
      if( serial_type<12 || (serial_type & 0x01) ){
        rc = -1;
      }else{
        int nStr = (serial_type - 12) / 2;
        testcase( (d1+nStr)==(unsigned)nKey1 );
        testcase( (d1+nStr+1)==(unsigned)nKey1 );
        if( (d1+nStr) > (unsigned)nKey1 ){
          pPKey2->errCode = (u8)SQLITE_CORRUPT_BKPT;
          return 0;                /* Corruption */






        }else{
          int nCmp = MIN(nStr, pRhs->n);
          rc = memcmp(&aKey1[d1], pRhs->z, nCmp);
          if( rc==0 ) rc = nStr - pRhs->n;
        }
      }
    }
................................................................................
  UnpackedRecord *pPKey2        /* Right key */
){
  const u8 *aKey = &((const u8*)pKey1)[*(const u8*)pKey1 & 0x3F];
  int serial_type = ((const u8*)pKey1)[1];
  int res;
  u32 y;
  u64 x;
  i64 v = pPKey2->aMem[0].u.i;
  i64 lhs;

  vdbeAssertFieldCountWithinLimits(nKey1, pKey1, pPKey2->pKeyInfo);
  assert( (*(u8*)pKey1)<=0x3F || CORRUPT_DB );
  switch( serial_type ){
    case 1: { /* 1-byte signed integer */
      lhs = ONE_BYTE_INT(aKey);
................................................................................
    case 0: case 7:
      return sqlite3VdbeRecordCompare(nKey1, pKey1, pPKey2);

    default:
      return sqlite3VdbeRecordCompare(nKey1, pKey1, pPKey2);
  }


  if( v>lhs ){
    res = pPKey2->r1;
  }else if( v<lhs ){
    res = pPKey2->r2;
  }else if( pPKey2->nField>1 ){
    /* The first fields of the two keys are equal. Compare the trailing 
    ** fields.  */
................................................................................
** Return TRUE (non-zero) of the statement supplied as an argument needs
** to be recompiled.  A statement needs to be recompiled whenever the
** execution environment changes in a way that would alter the program
** that sqlite3_prepare() generates.  For example, if new functions or
** collating sequences are registered or if an authorizer function is
** added or changed.
*/
SQLITE_API int SQLITE_APICALL sqlite3_expired(sqlite3_stmt *pStmt){
  Vdbe *p = (Vdbe*)pStmt;
  return p==0 || p->expired;
}
#endif

/*
** Check on a Vdbe to make sure it has not been finalized.  Log
................................................................................
** the sqlite3_compile() routine. The integer returned is an SQLITE_
** success/failure code that describes the result of executing the virtual
** machine.
**
** This routine sets the error code and string returned by
** sqlite3_errcode(), sqlite3_errmsg() and sqlite3_errmsg16().
*/
SQLITE_API int SQLITE_APICALL sqlite3_finalize(sqlite3_stmt *pStmt){
  int rc;
  if( pStmt==0 ){
    /* IMPLEMENTATION-OF: R-57228-12904 Invoking sqlite3_finalize() on a NULL
    ** pointer is a harmless no-op. */
    rc = SQLITE_OK;
  }else{
    Vdbe *v = (Vdbe*)pStmt;
................................................................................
** Terminate the current execution of an SQL statement and reset it
** back to its starting state so that it can be reused. A success code from
** the prior execution is returned.
**
** This routine sets the error code and string returned by
** sqlite3_errcode(), sqlite3_errmsg() and sqlite3_errmsg16().
*/
SQLITE_API int SQLITE_APICALL sqlite3_reset(sqlite3_stmt *pStmt){
  int rc;
  if( pStmt==0 ){
    rc = SQLITE_OK;
  }else{
    Vdbe *v = (Vdbe*)pStmt;
    sqlite3 *db = v->db;
    sqlite3_mutex_enter(db->mutex);
................................................................................
  }
  return rc;
}

/*
** Set all the parameters in the compiled SQL statement to NULL.
*/
SQLITE_API int SQLITE_APICALL sqlite3_clear_bindings(sqlite3_stmt *pStmt){
  int i;
  int rc = SQLITE_OK;
  Vdbe *p = (Vdbe*)pStmt;
#if SQLITE_THREADSAFE
  sqlite3_mutex *mutex = ((Vdbe*)pStmt)->db->mutex;
#endif
  sqlite3_mutex_enter(mutex);
................................................................................
}


/**************************** sqlite3_value_  *******************************
** The following routines extract information from a Mem or sqlite3_value
** structure.
*/
SQLITE_API const void *SQLITE_APICALL sqlite3_value_blob(sqlite3_value *pVal){
  Mem *p = (Mem*)pVal;
  if( p->flags & (MEM_Blob|MEM_Str) ){
    if( sqlite3VdbeMemExpandBlob(p)!=SQLITE_OK ){
      assert( p->flags==MEM_Null && p->z==0 );
      return 0;
    }
    p->flags |= MEM_Blob;
    return p->n ? p->z : 0;
  }else{
    return sqlite3_value_text(pVal);
  }
}
SQLITE_API int SQLITE_APICALL sqlite3_value_bytes(sqlite3_value *pVal){
  return sqlite3ValueBytes(pVal, SQLITE_UTF8);
}
SQLITE_API int SQLITE_APICALL sqlite3_value_bytes16(sqlite3_value *pVal){
  return sqlite3ValueBytes(pVal, SQLITE_UTF16NATIVE);
}
SQLITE_API double SQLITE_APICALL sqlite3_value_double(sqlite3_value *pVal){
  return sqlite3VdbeRealValue((Mem*)pVal);
}
SQLITE_API int SQLITE_APICALL sqlite3_value_int(sqlite3_value *pVal){
  return (int)sqlite3VdbeIntValue((Mem*)pVal);
}
SQLITE_API sqlite_int64 SQLITE_APICALL sqlite3_value_int64(sqlite3_value *pVal){
  return sqlite3VdbeIntValue((Mem*)pVal);
}
SQLITE_API unsigned int SQLITE_APICALL sqlite3_value_subtype(sqlite3_value *pVal){
  Mem *pMem = (Mem*)pVal;
  return ((pMem->flags & MEM_Subtype) ? pMem->eSubtype : 0);
}
SQLITE_API const unsigned char *SQLITE_APICALL sqlite3_value_text(sqlite3_value *pVal){
  return (const unsigned char *)sqlite3ValueText(pVal, SQLITE_UTF8);
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API const void *SQLITE_APICALL sqlite3_value_text16(sqlite3_value* pVal){
  return sqlite3ValueText(pVal, SQLITE_UTF16NATIVE);
}
SQLITE_API const void *SQLITE_APICALL sqlite3_value_text16be(sqlite3_value *pVal){
  return sqlite3ValueText(pVal, SQLITE_UTF16BE);
}
SQLITE_API const void *SQLITE_APICALL sqlite3_value_text16le(sqlite3_value *pVal){
  return sqlite3ValueText(pVal, SQLITE_UTF16LE);
}
#endif /* SQLITE_OMIT_UTF16 */
/* EVIDENCE-OF: R-12793-43283 Every value in SQLite has one of five
** fundamental datatypes: 64-bit signed integer 64-bit IEEE floating
** point number string BLOB NULL
*/
SQLITE_API int SQLITE_APICALL sqlite3_value_type(sqlite3_value* pVal){
  static const u8 aType[] = {
     SQLITE_BLOB,     /* 0x00 */
     SQLITE_NULL,     /* 0x01 */
     SQLITE_TEXT,     /* 0x02 */
     SQLITE_NULL,     /* 0x03 */
     SQLITE_INTEGER,  /* 0x04 */
     SQLITE_NULL,     /* 0x05 */
................................................................................
     SQLITE_NULL,     /* 0x1f */
  };
  return aType[pVal->flags&MEM_AffMask];
}

/* Make a copy of an sqlite3_value object
*/
SQLITE_API sqlite3_value *SQLITE_APICALL sqlite3_value_dup(const sqlite3_value *pOrig){
  sqlite3_value *pNew;
  if( pOrig==0 ) return 0;
  pNew = sqlite3_malloc( sizeof(*pNew) );
  if( pNew==0 ) return 0;
  memset(pNew, 0, sizeof(*pNew));
  memcpy(pNew, pOrig, MEMCELLSIZE);
  pNew->flags &= ~MEM_Dyn;
................................................................................
  }
  return pNew;
}

/* Destroy an sqlite3_value object previously obtained from
** sqlite3_value_dup().
*/
SQLITE_API void SQLITE_APICALL sqlite3_value_free(sqlite3_value *pOld){
  sqlite3ValueFree(pOld);
}
  

/**************************** sqlite3_result_  *******************************
** The following routines are used by user-defined functions to specify
** the function result.
................................................................................
    /* noop */
  }else{
    xDel((void*)p);
  }
  if( pCtx ) sqlite3_result_error_toobig(pCtx);
  return SQLITE_TOOBIG;
}
SQLITE_API void SQLITE_APICALL sqlite3_result_blob(
  sqlite3_context *pCtx, 
  const void *z, 
  int n, 
  void (*xDel)(void *)
){
  assert( n>=0 );
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  setResultStrOrError(pCtx, z, n, 0, xDel);
}
SQLITE_API void SQLITE_APICALL sqlite3_result_blob64(
  sqlite3_context *pCtx, 
  const void *z, 
  sqlite3_uint64 n,
  void (*xDel)(void *)
){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  assert( xDel!=SQLITE_DYNAMIC );
  if( n>0x7fffffff ){
    (void)invokeValueDestructor(z, xDel, pCtx);
  }else{
    setResultStrOrError(pCtx, z, (int)n, 0, xDel);
  }
}
SQLITE_API void SQLITE_APICALL sqlite3_result_double(sqlite3_context *pCtx, double rVal){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  sqlite3VdbeMemSetDouble(pCtx->pOut, rVal);
}
SQLITE_API void SQLITE_APICALL sqlite3_result_error(sqlite3_context *pCtx, const char *z, int n){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  pCtx->isError = SQLITE_ERROR;
  pCtx->fErrorOrAux = 1;
  sqlite3VdbeMemSetStr(pCtx->pOut, z, n, SQLITE_UTF8, SQLITE_TRANSIENT);
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API void SQLITE_APICALL sqlite3_result_error16(sqlite3_context *pCtx, const void *z, int n){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  pCtx->isError = SQLITE_ERROR;
  pCtx->fErrorOrAux = 1;
  sqlite3VdbeMemSetStr(pCtx->pOut, z, n, SQLITE_UTF16NATIVE, SQLITE_TRANSIENT);
}
#endif
SQLITE_API void SQLITE_APICALL sqlite3_result_int(sqlite3_context *pCtx, int iVal){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  sqlite3VdbeMemSetInt64(pCtx->pOut, (i64)iVal);
}
SQLITE_API void SQLITE_APICALL sqlite3_result_int64(sqlite3_context *pCtx, i64 iVal){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  sqlite3VdbeMemSetInt64(pCtx->pOut, iVal);
}
SQLITE_API void SQLITE_APICALL sqlite3_result_null(sqlite3_context *pCtx){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  sqlite3VdbeMemSetNull(pCtx->pOut);
}
SQLITE_API void SQLITE_APICALL sqlite3_result_subtype(sqlite3_context *pCtx, unsigned int eSubtype){
  Mem *pOut = pCtx->pOut;
  assert( sqlite3_mutex_held(pOut->db->mutex) );
  pOut->eSubtype = eSubtype & 0xff;
  pOut->flags |= MEM_Subtype;
}
SQLITE_API void SQLITE_APICALL sqlite3_result_text(
  sqlite3_context *pCtx, 
  const char *z, 
  int n,
  void (*xDel)(void *)
){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  setResultStrOrError(pCtx, z, n, SQLITE_UTF8, xDel);
}
SQLITE_API void SQLITE_APICALL sqlite3_result_text64(
  sqlite3_context *pCtx, 
  const char *z, 
  sqlite3_uint64 n,
  void (*xDel)(void *),
  unsigned char enc
){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
................................................................................
  if( n>0x7fffffff ){
    (void)invokeValueDestructor(z, xDel, pCtx);
  }else{
    setResultStrOrError(pCtx, z, (int)n, enc, xDel);
  }
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API void SQLITE_APICALL sqlite3_result_text16(
  sqlite3_context *pCtx, 
  const void *z, 
  int n, 
  void (*xDel)(void *)
){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  setResultStrOrError(pCtx, z, n, SQLITE_UTF16NATIVE, xDel);
}
SQLITE_API void SQLITE_APICALL sqlite3_result_text16be(
  sqlite3_context *pCtx, 
  const void *z, 
  int n, 
  void (*xDel)(void *)
){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  setResultStrOrError(pCtx, z, n, SQLITE_UTF16BE, xDel);
}
SQLITE_API void SQLITE_APICALL sqlite3_result_text16le(
  sqlite3_context *pCtx, 
  const void *z, 
  int n, 
  void (*xDel)(void *)
){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  setResultStrOrError(pCtx, z, n, SQLITE_UTF16LE, xDel);
}
#endif /* SQLITE_OMIT_UTF16 */
SQLITE_API void SQLITE_APICALL sqlite3_result_value(sqlite3_context *pCtx, sqlite3_value *pValue){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  sqlite3VdbeMemCopy(pCtx->pOut, pValue);
}
SQLITE_API void SQLITE_APICALL sqlite3_result_zeroblob(sqlite3_context *pCtx, int n){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  sqlite3VdbeMemSetZeroBlob(pCtx->pOut, n);
}
SQLITE_API int SQLITE_APICALL sqlite3_result_zeroblob64(sqlite3_context *pCtx, u64 n){
  Mem *pOut = pCtx->pOut;
  assert( sqlite3_mutex_held(pOut->db->mutex) );
  if( n>(u64)pOut->db->aLimit[SQLITE_LIMIT_LENGTH] ){
    return SQLITE_TOOBIG;
  }
  sqlite3VdbeMemSetZeroBlob(pCtx->pOut, (int)n);
  return SQLITE_OK;
}
SQLITE_API void SQLITE_APICALL sqlite3_result_error_code(sqlite3_context *pCtx, int errCode){
  pCtx->isError = errCode;
  pCtx->fErrorOrAux = 1;
#ifdef SQLITE_DEBUG
  if( pCtx->pVdbe ) pCtx->pVdbe->rcApp = errCode;
#endif
  if( pCtx->pOut->flags & MEM_Null ){
    sqlite3VdbeMemSetStr(pCtx->pOut, sqlite3ErrStr(errCode), -1, 
                         SQLITE_UTF8, SQLITE_STATIC);
  }
}

/* Force an SQLITE_TOOBIG error. */
SQLITE_API void SQLITE_APICALL sqlite3_result_error_toobig(sqlite3_context *pCtx){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  pCtx->isError = SQLITE_TOOBIG;
  pCtx->fErrorOrAux = 1;
  sqlite3VdbeMemSetStr(pCtx->pOut, "string or blob too big", -1, 
                       SQLITE_UTF8, SQLITE_STATIC);
}

/* An SQLITE_NOMEM error. */
SQLITE_API void SQLITE_APICALL sqlite3_result_error_nomem(sqlite3_context *pCtx){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  sqlite3VdbeMemSetNull(pCtx->pOut);
  pCtx->isError = SQLITE_NOMEM_BKPT;
  pCtx->fErrorOrAux = 1;
  sqlite3OomFault(pCtx->pOut->db);
}

................................................................................
    Btree *pBt = db->aDb[i].pBt;
    if( pBt ){
      int nEntry;
      sqlite3BtreeEnter(pBt);
      nEntry = sqlite3PagerWalCallback(sqlite3BtreePager(pBt));
      sqlite3BtreeLeave(pBt);
      if( db->xWalCallback && nEntry>0 && rc==SQLITE_OK ){
        rc = db->xWalCallback(db->pWalArg, db, db->aDb[i].zName, nEntry);
      }
    }
  }
#endif
  return rc;
}

................................................................................
}

/*
** This is the top-level implementation of sqlite3_step().  Call
** sqlite3Step() to do most of the work.  If a schema error occurs,
** call sqlite3Reprepare() and try again.
*/
SQLITE_API int SQLITE_APICALL sqlite3_step(sqlite3_stmt *pStmt){
  int rc = SQLITE_OK;      /* Result from sqlite3Step() */
  int rc2 = SQLITE_OK;     /* Result from sqlite3Reprepare() */
  Vdbe *v = (Vdbe*)pStmt;  /* the prepared statement */
  int cnt = 0;             /* Counter to prevent infinite loop of reprepares */
  sqlite3 *db;             /* The database connection */

  if( vdbeSafetyNotNull(v) ){
................................................................................
}


/*
** Extract the user data from a sqlite3_context structure and return a
** pointer to it.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_user_data(sqlite3_context *p){
  assert( p && p->pFunc );
  return p->pFunc->pUserData;
}

/*
** Extract the user data from a sqlite3_context structure and return a
** pointer to it.
................................................................................
**
** IMPLEMENTATION-OF: R-46798-50301 The sqlite3_context_db_handle() interface
** returns a copy of the pointer to the database connection (the 1st
** parameter) of the sqlite3_create_function() and
** sqlite3_create_function16() routines that originally registered the
** application defined function.
*/
SQLITE_API sqlite3 *SQLITE_APICALL sqlite3_context_db_handle(sqlite3_context *p){
  assert( p && p->pOut );
  return p->pOut->db;
}

/*
** Return the current time for a statement.  If the current time
** is requested more than once within the same run of a single prepared
................................................................................
}

/*
** Allocate or return the aggregate context for a user function.  A new
** context is allocated on the first call.  Subsequent calls return the
** same context that was returned on prior calls.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_aggregate_context(sqlite3_context *p, int nByte){
  assert( p && p->pFunc && p->pFunc->xFinalize );
  assert( sqlite3_mutex_held(p->pOut->db->mutex) );
  testcase( nByte<0 );
  if( (p->pMem->flags & MEM_Agg)==0 ){
    return createAggContext(p, nByte);
  }else{
    return (void*)p->pMem->z;
................................................................................
  }
}

/*
** Return the auxiliary data pointer, if any, for the iArg'th argument to
** the user-function defined by pCtx.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_get_auxdata(sqlite3_context *pCtx, int iArg){
  AuxData *pAuxData;

  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
#if SQLITE_ENABLE_STAT3_OR_STAT4
  if( pCtx->pVdbe==0 ) return 0;
#else
  assert( pCtx->pVdbe!=0 );
................................................................................
}

/*
** Set the auxiliary data pointer and delete function, for the iArg'th
** argument to the user-function defined by pCtx. Any previous value is
** deleted by calling the delete function specified when it was set.
*/
SQLITE_API void SQLITE_APICALL sqlite3_set_auxdata(
  sqlite3_context *pCtx, 
  int iArg, 
  void *pAux, 
  void (*xDelete)(void*)
){
  AuxData *pAuxData;
  Vdbe *pVdbe = pCtx->pVdbe;
................................................................................
** called.
**
** This function is deprecated.  Do not use it for new code.  It is
** provide only to avoid breaking legacy code.  New aggregate function
** implementations should keep their own counts within their aggregate
** context.
*/
SQLITE_API int SQLITE_APICALL sqlite3_aggregate_count(sqlite3_context *p){
  assert( p && p->pMem && p->pFunc && p->pFunc->xFinalize );
  return p->pMem->n;
}
#endif

/*
** Return the number of columns in the result set for the statement pStmt.
*/
SQLITE_API int SQLITE_APICALL sqlite3_column_count(sqlite3_stmt *pStmt){
  Vdbe *pVm = (Vdbe *)pStmt;
  return pVm ? pVm->nResColumn : 0;
}

/*
** Return the number of values available from the current row of the
** currently executing statement pStmt.
*/
SQLITE_API int SQLITE_APICALL sqlite3_data_count(sqlite3_stmt *pStmt){
  Vdbe *pVm = (Vdbe *)pStmt;
  if( pVm==0 || pVm->pResultSet==0 ) return 0;
  return pVm->nResColumn;
}

/*
** Return a pointer to static memory containing an SQL NULL value.
................................................................................
** of NULL.
*/
static Mem *columnMem(sqlite3_stmt *pStmt, int i){
  Vdbe *pVm;
  Mem *pOut;

  pVm = (Vdbe *)pStmt;
  if( pVm && pVm->pResultSet!=0 && i<pVm->nResColumn && i>=0 ){

    sqlite3_mutex_enter(pVm->db->mutex);

    pOut = &pVm->pResultSet[i];
  }else{
    if( pVm && ALWAYS(pVm->db) ){
      sqlite3_mutex_enter(pVm->db->mutex);
      sqlite3Error(pVm->db, SQLITE_RANGE);
    }
    pOut = (Mem*)columnNullValue();
  }
  return pOut;
}

/*
** This function is called after invoking an sqlite3_value_XXX function on a 
................................................................................
  /* If malloc() failed during an encoding conversion within an
  ** sqlite3_column_XXX API, then set the return code of the statement to
  ** SQLITE_NOMEM. The next call to _step() (if any) will return SQLITE_ERROR
  ** and _finalize() will return NOMEM.
  */
  Vdbe *p = (Vdbe *)pStmt;
  if( p ){


    p->rc = sqlite3ApiExit(p->db, p->rc);
    sqlite3_mutex_leave(p->db->mutex);
  }
}

/**************************** sqlite3_column_  *******************************
** The following routines are used to access elements of the current row
** in the result set.
*/
SQLITE_API const void *SQLITE_APICALL sqlite3_column_blob(sqlite3_stmt *pStmt, int i){
  const void *val;
  val = sqlite3_value_blob( columnMem(pStmt,i) );
  /* Even though there is no encoding conversion, value_blob() might
  ** need to call malloc() to expand the result of a zeroblob() 
  ** expression. 
  */
  columnMallocFailure(pStmt);
  return val;
}
SQLITE_API int SQLITE_APICALL sqlite3_column_bytes(sqlite3_stmt *pStmt, int i){
  int val = sqlite3_value_bytes( columnMem(pStmt,i) );
  columnMallocFailure(pStmt);
  return val;
}
SQLITE_API int SQLITE_APICALL sqlite3_column_bytes16(sqlite3_stmt *pStmt, int i){
  int val = sqlite3_value_bytes16( columnMem(pStmt,i) );
  columnMallocFailure(pStmt);
  return val;
}
SQLITE_API double SQLITE_APICALL sqlite3_column_double(sqlite3_stmt *pStmt, int i){
  double val = sqlite3_value_double( columnMem(pStmt,i) );
  columnMallocFailure(pStmt);
  return val;
}
SQLITE_API int SQLITE_APICALL sqlite3_column_int(sqlite3_stmt *pStmt, int i){
  int val = sqlite3_value_int( columnMem(pStmt,i) );
  columnMallocFailure(pStmt);
  return val;
}
SQLITE_API sqlite_int64 SQLITE_APICALL sqlite3_column_int64(sqlite3_stmt *pStmt, int i){
  sqlite_int64 val = sqlite3_value_int64( columnMem(pStmt,i) );
  columnMallocFailure(pStmt);
  return val;
}
SQLITE_API const unsigned char *SQLITE_APICALL sqlite3_column_text(sqlite3_stmt *pStmt, int i){
  const unsigned char *val = sqlite3_value_text( columnMem(pStmt,i) );
  columnMallocFailure(pStmt);
  return val;
}
SQLITE_API sqlite3_value *SQLITE_APICALL sqlite3_column_value(sqlite3_stmt *pStmt, int i){
  Mem *pOut = columnMem(pStmt, i);
  if( pOut->flags&MEM_Static ){
    pOut->flags &= ~MEM_Static;
    pOut->flags |= MEM_Ephem;
  }
  columnMallocFailure(pStmt);
  return (sqlite3_value *)pOut;
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API const void *SQLITE_APICALL sqlite3_column_text16(sqlite3_stmt *pStmt, int i){
  const void *val = sqlite3_value_text16( columnMem(pStmt,i) );
  columnMallocFailure(pStmt);
  return val;
}
#endif /* SQLITE_OMIT_UTF16 */
SQLITE_API int SQLITE_APICALL sqlite3_column_type(sqlite3_stmt *pStmt, int i){
  int iType = sqlite3_value_type( columnMem(pStmt,i) );
  columnMallocFailure(pStmt);
  return iType;
}

/*
** Convert the N-th element of pStmt->pColName[] into a string using
................................................................................
  return ret;
}

/*
** Return the name of the Nth column of the result set returned by SQL
** statement pStmt.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_column_name(sqlite3_stmt *pStmt, int N){
  return columnName(
      pStmt, N, (const void*(*)(Mem*))sqlite3_value_text, COLNAME_NAME);
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API const void *SQLITE_APICALL sqlite3_column_name16(sqlite3_stmt *pStmt, int N){
  return columnName(
      pStmt, N, (const void*(*)(Mem*))sqlite3_value_text16, COLNAME_NAME);
}
#endif

/*
** Constraint:  If you have ENABLE_COLUMN_METADATA then you must
................................................................................
#endif

#ifndef SQLITE_OMIT_DECLTYPE
/*
** Return the column declaration type (if applicable) of the 'i'th column
** of the result set of SQL statement pStmt.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_column_decltype(sqlite3_stmt *pStmt, int N){
  return columnName(
      pStmt, N, (const void*(*)(Mem*))sqlite3_value_text, COLNAME_DECLTYPE);
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API const void *SQLITE_APICALL sqlite3_column_decltype16(sqlite3_stmt *pStmt, int N){
  return columnName(
      pStmt, N, (const void*(*)(Mem*))sqlite3_value_text16, COLNAME_DECLTYPE);
}
#endif /* SQLITE_OMIT_UTF16 */
#endif /* SQLITE_OMIT_DECLTYPE */

#ifdef SQLITE_ENABLE_COLUMN_METADATA
/*
** Return the name of the database from which a result column derives.
** NULL is returned if the result column is an expression or constant or
** anything else which is not an unambiguous reference to a database column.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_column_database_name(sqlite3_stmt *pStmt, int N){
  return columnName(
      pStmt, N, (const void*(*)(Mem*))sqlite3_value_text, COLNAME_DATABASE);
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API const void *SQLITE_APICALL sqlite3_column_database_name16(sqlite3_stmt *pStmt, int N){
  return columnName(
      pStmt, N, (const void*(*)(Mem*))sqlite3_value_text16, COLNAME_DATABASE);
}
#endif /* SQLITE_OMIT_UTF16 */

/*
** Return the name of the table from which a result column derives.
** NULL is returned if the result column is an expression or constant or
** anything else which is not an unambiguous reference to a database column.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_column_table_name(sqlite3_stmt *pStmt, int N){
  return columnName(
      pStmt, N, (const void*(*)(Mem*))sqlite3_value_text, COLNAME_TABLE);
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API const void *SQLITE_APICALL sqlite3_column_table_name16(sqlite3_stmt *pStmt, int N){
  return columnName(
      pStmt, N, (const void*(*)(Mem*))sqlite3_value_text16, COLNAME_TABLE);
}
#endif /* SQLITE_OMIT_UTF16 */

/*
** Return the name of the table column from which a result column derives.
** NULL is returned if the result column is an expression or constant or
** anything else which is not an unambiguous reference to a database column.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_column_origin_name(sqlite3_stmt *pStmt, int N){
  return columnName(
      pStmt, N, (const void*(*)(Mem*))sqlite3_value_text, COLNAME_COLUMN);
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API const void *SQLITE_APICALL sqlite3_column_origin_name16(sqlite3_stmt *pStmt, int N){
  return columnName(
      pStmt, N, (const void*(*)(Mem*))sqlite3_value_text16, COLNAME_COLUMN);
}
#endif /* SQLITE_OMIT_UTF16 */
#endif /* SQLITE_ENABLE_COLUMN_METADATA */


................................................................................
  return rc;
}


/*
** Bind a blob value to an SQL statement variable.
*/
SQLITE_API int SQLITE_APICALL sqlite3_bind_blob(
  sqlite3_stmt *pStmt, 
  int i, 
  const void *zData, 
  int nData, 
  void (*xDel)(void*)
){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( nData<0 ) return SQLITE_MISUSE_BKPT;
#endif
  return bindText(pStmt, i, zData, nData, xDel, 0);
}
SQLITE_API int SQLITE_APICALL sqlite3_bind_blob64(
  sqlite3_stmt *pStmt, 
  int i, 
  const void *zData, 
  sqlite3_uint64 nData, 
  void (*xDel)(void*)
){
  assert( xDel!=SQLITE_DYNAMIC );
  if( nData>0x7fffffff ){
    return invokeValueDestructor(zData, xDel, 0);
  }else{
    return bindText(pStmt, i, zData, (int)nData, xDel, 0);
  }
}
SQLITE_API int SQLITE_APICALL sqlite3_bind_double(sqlite3_stmt *pStmt, int i, double rValue){
  int rc;
  Vdbe *p = (Vdbe *)pStmt;
  rc = vdbeUnbind(p, i);
  if( rc==SQLITE_OK ){
    sqlite3VdbeMemSetDouble(&p->aVar[i-1], rValue);
    sqlite3_mutex_leave(p->db->mutex);
  }
  return rc;
}
SQLITE_API int SQLITE_APICALL sqlite3_bind_int(sqlite3_stmt *p, int i, int iValue){
  return sqlite3_bind_int64(p, i, (i64)iValue);
}
SQLITE_API int SQLITE_APICALL sqlite3_bind_int64(sqlite3_stmt *pStmt, int i, sqlite_int64 iValue){
  int rc;
  Vdbe *p = (Vdbe *)pStmt;
  rc = vdbeUnbind(p, i);
  if( rc==SQLITE_OK ){
    sqlite3VdbeMemSetInt64(&p->aVar[i-1], iValue);
    sqlite3_mutex_leave(p->db->mutex);
  }
  return rc;
}
SQLITE_API int SQLITE_APICALL sqlite3_bind_null(sqlite3_stmt *pStmt, int i){
  int rc;
  Vdbe *p = (Vdbe*)pStmt;
  rc = vdbeUnbind(p, i);
  if( rc==SQLITE_OK ){
    sqlite3_mutex_leave(p->db->mutex);
  }
  return rc;
}
SQLITE_API int SQLITE_APICALL sqlite3_bind_text( 
  sqlite3_stmt *pStmt, 
  int i, 
  const char *zData, 
  int nData, 
  void (*xDel)(void*)
){
  return bindText(pStmt, i, zData, nData, xDel, SQLITE_UTF8);
}
SQLITE_API int SQLITE_APICALL sqlite3_bind_text64( 
  sqlite3_stmt *pStmt, 
  int i, 
  const char *zData, 
  sqlite3_uint64 nData, 
  void (*xDel)(void*),
  unsigned char enc
){
................................................................................
    return invokeValueDestructor(zData, xDel, 0);
  }else{
    if( enc==SQLITE_UTF16 ) enc = SQLITE_UTF16NATIVE;
    return bindText(pStmt, i, zData, (int)nData, xDel, enc);
  }
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API int SQLITE_APICALL sqlite3_bind_text16(
  sqlite3_stmt *pStmt, 
  int i, 
  const void *zData, 
  int nData, 
  void (*xDel)(void*)
){
  return bindText(pStmt, i, zData, nData, xDel, SQLITE_UTF16NATIVE);
}
#endif /* SQLITE_OMIT_UTF16 */
SQLITE_API int SQLITE_APICALL sqlite3_bind_value(sqlite3_stmt *pStmt, int i, const sqlite3_value *pValue){
  int rc;
  switch( sqlite3_value_type((sqlite3_value*)pValue) ){
    case SQLITE_INTEGER: {
      rc = sqlite3_bind_int64(pStmt, i, pValue->u.i);
      break;
    }
    case SQLITE_FLOAT: {
................................................................................
    default: {
      rc = sqlite3_bind_null(pStmt, i);
      break;
    }
  }
  return rc;
}
SQLITE_API int SQLITE_APICALL sqlite3_bind_zeroblob(sqlite3_stmt *pStmt, int i, int n){
  int rc;
  Vdbe *p = (Vdbe *)pStmt;
  rc = vdbeUnbind(p, i);
  if( rc==SQLITE_OK ){
    sqlite3VdbeMemSetZeroBlob(&p->aVar[i-1], n);
    sqlite3_mutex_leave(p->db->mutex);
  }
  return rc;
}
SQLITE_API int SQLITE_APICALL sqlite3_bind_zeroblob64(sqlite3_stmt *pStmt, int i, sqlite3_uint64 n){
  int rc;
  Vdbe *p = (Vdbe *)pStmt;
  sqlite3_mutex_enter(p->db->mutex);
  if( n>(u64)p->db->aLimit[SQLITE_LIMIT_LENGTH] ){
    rc = SQLITE_TOOBIG;
  }else{
    assert( (n & 0x7FFFFFFF)==n );
................................................................................
  return rc;
}

/*
** Return the number of wildcards that can be potentially bound to.
** This routine is added to support DBD::SQLite.  
*/
SQLITE_API int SQLITE_APICALL sqlite3_bind_parameter_count(sqlite3_stmt *pStmt){
  Vdbe *p = (Vdbe*)pStmt;
  return p ? p->nVar : 0;
}

/*
** Return the name of a wildcard parameter.  Return NULL if the index
** is out of range or if the wildcard is unnamed.
**
** The result is always UTF-8.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_bind_parameter_name(sqlite3_stmt *pStmt, int i){
  Vdbe *p = (Vdbe*)pStmt;
  if( p==0 || i<1 || i>p->nzVar ){
    return 0;
  }
  return p->azVar[i-1];
}

................................................................................
      if( z && strncmp(z,zName,nName)==0 && z[nName]==0 ){
        return i+1;
      }
    }
  }
  return 0;
}
SQLITE_API int SQLITE_APICALL sqlite3_bind_parameter_index(sqlite3_stmt *pStmt, const char *zName){
  return sqlite3VdbeParameterIndex((Vdbe*)pStmt, zName, sqlite3Strlen30(zName));
}

/*
** Transfer all bindings from the first statement over to the second.
*/
SQLITE_PRIVATE int sqlite3TransferBindings(sqlite3_stmt *pFromStmt, sqlite3_stmt *pToStmt){
................................................................................
** database connections.  But as this is a deprecated interface, we
** will not bother to check for that condition.
**
** If the two statements contain a different number of bindings, then
** an SQLITE_ERROR is returned.  Nothing else can go wrong, so otherwise
** SQLITE_OK is returned.
*/
SQLITE_API int SQLITE_APICALL sqlite3_transfer_bindings(sqlite3_stmt *pFromStmt, sqlite3_stmt *pToStmt){
  Vdbe *pFrom = (Vdbe*)pFromStmt;
  Vdbe *pTo = (Vdbe*)pToStmt;
  if( pFrom->nVar!=pTo->nVar ){
    return SQLITE_ERROR;
  }
  if( pTo->isPrepareV2 && pTo->expmask ){
    pTo->expired = 1;
................................................................................

/*
** Return the sqlite3* database handle to which the prepared statement given
** in the argument belongs.  This is the same database handle that was
** the first argument to the sqlite3_prepare() that was used to create
** the statement in the first place.
*/
SQLITE_API sqlite3 *SQLITE_APICALL sqlite3_db_handle(sqlite3_stmt *pStmt){
  return pStmt ? ((Vdbe*)pStmt)->db : 0;
}

/*
** Return true if the prepared statement is guaranteed to not modify the
** database.
*/
SQLITE_API int SQLITE_APICALL sqlite3_stmt_readonly(sqlite3_stmt *pStmt){
  return pStmt ? ((Vdbe*)pStmt)->readOnly : 1;
}

/*
** Return true if the prepared statement is in need of being reset.
*/
SQLITE_API int SQLITE_APICALL sqlite3_stmt_busy(sqlite3_stmt *pStmt){
  Vdbe *v = (Vdbe*)pStmt;
  return v!=0 && v->pc>=0 && v->magic==VDBE_MAGIC_RUN;
}

/*
** Return a pointer to the next prepared statement after pStmt associated
** with database connection pDb.  If pStmt is NULL, return the first
** prepared statement for the database connection.  Return NULL if there
** are no more.
*/
SQLITE_API sqlite3_stmt *SQLITE_APICALL sqlite3_next_stmt(sqlite3 *pDb, sqlite3_stmt *pStmt){
  sqlite3_stmt *pNext;
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(pDb) ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
................................................................................
  sqlite3_mutex_leave(pDb->mutex);
  return pNext;
}

/*
** Return the value of a status counter for a prepared statement
*/
SQLITE_API int SQLITE_APICALL sqlite3_stmt_status(sqlite3_stmt *pStmt, int op, int resetFlag){
  Vdbe *pVdbe = (Vdbe*)pStmt;
  u32 v;
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !pStmt ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
................................................................................
  if( resetFlag ) pVdbe->aCounter[op] = 0;
  return (int)v;
}

/*
** Return the SQL associated with a prepared statement
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_sql(sqlite3_stmt *pStmt){
  Vdbe *p = (Vdbe *)pStmt;
  return p ? p->zSql : 0;
}

/*
** Return the SQL associated with a prepared statement with
** bound parameters expanded.  Space to hold the returned string is
** obtained from sqlite3_malloc().  The caller is responsible for
** freeing the returned string by passing it to sqlite3_free().
**
** The SQLITE_TRACE_SIZE_LIMIT puts an upper bound on the size of
** expanded bound parameters.
*/
SQLITE_API char *SQLITE_APICALL sqlite3_expanded_sql(sqlite3_stmt *pStmt){
#ifdef SQLITE_OMIT_TRACE
  return 0;
#else
  char *z = 0;
  const char *zSql = sqlite3_sql(pStmt);
  if( zSql ){
    Vdbe *p = (Vdbe *)pStmt;
................................................................................
  return pRet;
}

/*
** This function is called from within a pre-update callback to retrieve
** a field of the row currently being updated or deleted.
*/
SQLITE_API int SQLITE_APICALL sqlite3_preupdate_old(sqlite3 *db, int iIdx, sqlite3_value **ppValue){
  PreUpdate *p = db->pPreUpdate;
  int rc = SQLITE_OK;

  /* Test that this call is being made from within an SQLITE_DELETE or
  ** SQLITE_UPDATE pre-update callback, and that iIdx is within range. */
  if( !p || p->op==SQLITE_INSERT ){
    rc = SQLITE_MISUSE_BKPT;
................................................................................
#endif /* SQLITE_ENABLE_PREUPDATE_HOOK */

#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
/*
** This function is called from within a pre-update callback to retrieve
** the number of columns in the row being updated, deleted or inserted.
*/
SQLITE_API int SQLITE_APICALL sqlite3_preupdate_count(sqlite3 *db){
  PreUpdate *p = db->pPreUpdate;
  return (p ? p->keyinfo.nField : 0);
}
#endif /* SQLITE_ENABLE_PREUPDATE_HOOK */

#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
/*
................................................................................
** trigger program, it returns the number of trigger programs currently
** on the stack (1 for a top-level trigger, 2 for a trigger fired by a 
** top-level trigger etc.).
**
** For the purposes of the previous paragraph, a foreign key CASCADE, SET NULL
** or SET DEFAULT action is considered a trigger.
*/
SQLITE_API int SQLITE_APICALL sqlite3_preupdate_depth(sqlite3 *db){
  PreUpdate *p = db->pPreUpdate;
  return (p ? p->v->nFrame : 0);
}
#endif /* SQLITE_ENABLE_PREUPDATE_HOOK */

#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
/*
** This function is called from within a pre-update callback to retrieve
** a field of the row currently being updated or inserted.
*/
SQLITE_API int SQLITE_APICALL sqlite3_preupdate_new(sqlite3 *db, int iIdx, sqlite3_value **ppValue){
  PreUpdate *p = db->pPreUpdate;
  int rc = SQLITE_OK;
  Mem *pMem;

  if( !p || p->op==SQLITE_DELETE ){
    rc = SQLITE_MISUSE_BKPT;
    goto preupdate_new_out;
................................................................................

  if( p->op==SQLITE_INSERT ){
    /* For an INSERT, memory cell p->iNewReg contains the serialized record
    ** that is being inserted. Deserialize it. */
    UnpackedRecord *pUnpack = p->pNewUnpacked;
    if( !pUnpack ){
      Mem *pData = &p->v->aMem[p->iNewReg];
      rc = sqlite3VdbeMemExpandBlob(pData);
      if( rc!=SQLITE_OK ) goto preupdate_new_out;
      pUnpack = vdbeUnpackRecord(&p->keyinfo, pData->n, pData->z);
      if( !pUnpack ){
        rc = SQLITE_NOMEM;
        goto preupdate_new_out;
      }
      p->pNewUnpacked = pUnpack;
................................................................................
}
#endif /* SQLITE_ENABLE_PREUPDATE_HOOK */

#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
/*
** Return status data for a single loop within query pStmt.
*/
SQLITE_API int SQLITE_APICALL sqlite3_stmt_scanstatus(
  sqlite3_stmt *pStmt,            /* Prepared statement being queried */
  int idx,                        /* Index of loop to report on */
  int iScanStatusOp,              /* Which metric to return */
  void *pOut                      /* OUT: Write the answer here */
){
  Vdbe *p = (Vdbe*)pStmt;
  ScanStatus *pScan;
................................................................................
  }
  return 0;
}

/*
** Zero all counters associated with the sqlite3_stmt_scanstatus() data.
*/
SQLITE_API void SQLITE_APICALL sqlite3_stmt_scanstatus_reset(sqlite3_stmt *pStmt){
  Vdbe *p = (Vdbe*)pStmt;
  memset(p->anExec, 0, p->nOp * sizeof(i64));
}
#endif /* SQLITE_ENABLE_STMT_SCANSTATUS */

/************** End of vdbeapi.c *********************************************/
/************** Begin file vdbetrace.c ***************************************/
................................................................................

/*
** Try to convert the type of a function argument or a result column
** into a numeric representation.  Use either INTEGER or REAL whichever
** is appropriate.  But only do the conversion if it is possible without
** loss of information and return the revised type of the argument.
*/
SQLITE_API int SQLITE_APICALL sqlite3_value_numeric_type(sqlite3_value *pVal){
  int eType = sqlite3_value_type(pVal);
  if( eType==SQLITE_TEXT ){
    Mem *pMem = (Mem*)pVal;
    applyNumericAffinity(pMem, 0);
    eType = sqlite3_value_type(pVal);
  }
  return eType;
................................................................................
#ifdef SQLITE_DEBUG
  int nExtraDelete = 0;      /* Verifies FORDELETE and AUXDELETE flags */
#endif
  int rc = SQLITE_OK;        /* Value to return */
  sqlite3 *db = p->db;       /* The database */
  u8 resetSchemaOnFault = 0; /* Reset schema after an error if positive */
  u8 encoding = ENC(db);     /* The database encoding */
  int iCompare = 0;          /* Result of last OP_Compare operation */
  unsigned nVmStep = 0;      /* Number of virtual machine steps */
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
  unsigned nProgressLimit = 0;/* Invoke xProgress() when nVmStep reaches this */
#endif
  Mem *aMem = p->aMem;       /* Copy of p->aMem */
  Mem *pIn1 = 0;             /* 1st input operand */
  Mem *pIn2 = 0;             /* 2nd input operand */
................................................................................
  pIn1->u.i = (int)(pOp - aOp);
  REGISTER_TRACE(pOp->p1, pIn1);
  pOp = &aOp[pcDest];
  break;
}

/* Opcode:  HaltIfNull  P1 P2 P3 P4 P5
** Synopsis:  if r[P3]=null halt
**
** Check the value in register P3.  If it is NULL then Halt using
** parameter P1, P2, and P4 as if this were a Halt instruction.  If the
** value in register P3 is not NULL, then this routine is a no-op.
** The P5 parameter should be 1.
*/
case OP_HaltIfNull: {      /* in3 */
................................................................................
    if( pIn3->u.i==pOp->p5 ) pOut->flags = MEM_Blob|MEM_Static|MEM_Term;
  }
#endif
  break;
}

/* Opcode: Null P1 P2 P3 * *
** Synopsis:  r[P2..P3]=NULL
**
** Write a NULL into registers P2.  If P3 greater than P2, then also write
** NULL into register P3 and every register in between P2 and P3.  If P3
** is less than P2 (typically P3 is zero) then only register P2 is
** set to NULL.
**
** If the P1 value is non-zero, then also set the MEM_Cleared flag so that
................................................................................
case OP_Null: {           /* out2 */
  int cnt;
  u16 nullFlag;
  pOut = out2Prerelease(p, pOp);
  cnt = pOp->p3-pOp->p2;
  assert( pOp->p3<=(p->nMem+1 - p->nCursor) );
  pOut->flags = nullFlag = pOp->p1 ? (MEM_Null|MEM_Cleared) : MEM_Null;

  while( cnt>0 ){
    pOut++;
    memAboutToChange(p, pOut);
    sqlite3VdbeMemSetNull(pOut);
    pOut->flags = nullFlag;

    cnt--;
  }
  break;
}

/* Opcode: SoftNull P1 * * * *
** Synopsis:  r[P1]=NULL
**
** Set register P1 to have the value NULL as seen by the OP_MakeRecord
** instruction, but do not free any string or blob memory associated with
** the register, so that if the value was a string or blob that was
** previously copied using OP_SCopy, the copies will continue to be valid.
*/
case OP_SoftNull: {
................................................................................
  pOut = out2Prerelease(p, pOp);
  sqlite3VdbeMemShallowCopy(pOut, pVar, MEM_Static);
  UPDATE_MAX_BLOBSIZE(pOut);
  break;
}

/* Opcode: Move P1 P2 P3 * *
** Synopsis:  r[P2@P3]=r[P1@P3]
**
** Move the P3 values in register P1..P1+P3-1 over into
** registers P2..P2+P3-1.  Registers P1..P1+P3-1 are
** left holding a NULL.  It is an error for register ranges
** P1..P1+P3-1 and P2..P2+P3-1 to overlap.  It is an error
** for P3 to be less than 1.
*/
................................................................................
  assert( (pIn1->flags & MEM_Int)!=0 );
  pOut = &aMem[pOp->p2];
  sqlite3VdbeMemSetInt64(pOut, pIn1->u.i);
  break;
}

/* Opcode: ResultRow P1 P2 * * *
** Synopsis:  output=r[P1@P2]
**
** The registers P1 through P1+P2-1 contain a single row of
** results. This opcode causes the sqlite3_step() call to terminate
** with an SQLITE_ROW return code and it sets up the sqlite3_stmt
** structure to provide access to the r(P1)..r(P1+P2-1) values as
** the result row.
*/
................................................................................
  pOut->n = (int)nByte;
  pOut->enc = encoding;
  UPDATE_MAX_BLOBSIZE(pOut);
  break;
}

/* Opcode: Add P1 P2 P3 * *
** Synopsis:  r[P3]=r[P1]+r[P2]
**
** Add the value in register P1 to the value in register P2
** and store the result in register P3.
** If either input is NULL, the result is NULL.
*/
/* Opcode: Multiply P1 P2 P3 * *
** Synopsis:  r[P3]=r[P1]*r[P2]
**
**
** Multiply the value in register P1 by the value in register P2
** and store the result in register P3.
** If either input is NULL, the result is NULL.
*/
/* Opcode: Subtract P1 P2 P3 * *
** Synopsis:  r[P3]=r[P2]-r[P1]
**
** Subtract the value in register P1 from the value in register P2
** and store the result in register P3.
** If either input is NULL, the result is NULL.
*/
/* Opcode: Divide P1 P2 P3 * *
** Synopsis:  r[P3]=r[P2]/r[P1]
**
** Divide the value in register P1 by the value in register P2
** and store the result in register P3 (P3=P2/P1). If the value in 
** register P1 is zero, then the result is NULL. If either input is 
** NULL, the result is NULL.
*/
/* Opcode: Remainder P1 P2 P3 * *
** Synopsis:  r[P3]=r[P2]%r[P1]
**
** Compute the remainder after integer register P2 is divided by 
** register P1 and store the result in register P3. 
** If the value in register P1 is zero the result is NULL.
** If either operand is NULL, the result is NULL.
*/
case OP_Add:                   /* same as TK_PLUS, in1, in2, out3 */
................................................................................

  REGISTER_TRACE(pOp->p3, pCtx->pOut);
  UPDATE_MAX_BLOBSIZE(pCtx->pOut);
  break;
}

/* Opcode: BitAnd P1 P2 P3 * *
** Synopsis:  r[P3]=r[P1]&r[P2]
**
** Take the bit-wise AND of the values in register P1 and P2 and
** store the result in register P3.
** If either input is NULL, the result is NULL.
*/
/* Opcode: BitOr P1 P2 P3 * *
** Synopsis:  r[P3]=r[P1]|r[P2]
**
** Take the bit-wise OR of the values in register P1 and P2 and
** store the result in register P3.
** If either input is NULL, the result is NULL.
*/
/* Opcode: ShiftLeft P1 P2 P3 * *
** Synopsis:  r[P3]=r[P2]<<r[P1]
**
** Shift the integer value in register P2 to the left by the
** number of bits specified by the integer in register P1.
** Store the result in register P3.
** If either input is NULL, the result is NULL.
*/
/* Opcode: ShiftRight P1 P2 P3 * *
** Synopsis:  r[P3]=r[P2]>>r[P1]
**
** Shift the integer value in register P2 to the right by the
** number of bits specified by the integer in register P1.
** Store the result in register P3.
** If either input is NULL, the result is NULL.
*/
case OP_BitAnd:                 /* same as TK_BITAND, in1, in2, out3 */
................................................................................
  }
  pOut->u.i = iA;
  MemSetTypeFlag(pOut, MEM_Int);
  break;
}

/* Opcode: AddImm  P1 P2 * * *
** Synopsis:  r[P1]=r[P1]+P2
** 
** Add the constant P2 to the value in register P1.
** The result is always an integer.
**
** To force any register to be an integer, just add 0.
*/
case OP_AddImm: {            /* in1 */
................................................................................
  sqlite3VdbeMemCast(pIn1, pOp->p2, encoding);
  UPDATE_MAX_BLOBSIZE(pIn1);
  if( rc ) goto abort_due_to_error;
  break;
}
#endif /* SQLITE_OMIT_CAST */















































/* Opcode: Lt P1 P2 P3 P4 P5
** Synopsis: if r[P1]<r[P3] goto P2
**
** Compare the values in register P1 and P3.  If reg(P3)<reg(P1) then
** jump to address P2.  

**
** If the SQLITE_JUMPIFNULL bit of P5 is set and either reg(P1) or
** reg(P3) is NULL then take the jump.  If the SQLITE_JUMPIFNULL 
** bit is clear then fall through if either operand is NULL.
**
** The SQLITE_AFF_MASK portion of P5 must be an affinity character -
** SQLITE_AFF_TEXT, SQLITE_AFF_INTEGER, and so forth. An attempt is made 
** to coerce both inputs according to this affinity before the
** comparison is made. If the SQLITE_AFF_MASK is 0x00, then numeric
** affinity is used. Note that the affinity conversions are stored
................................................................................
** used to determine the results of the comparison.  If both values
** are text, then the appropriate collating function specified in
** P4 is  used to do the comparison.  If P4 is not specified then
** memcmp() is used to compare text string.  If both values are
** numeric, then a numeric comparison is used. If the two values
** are of different types, then numbers are considered less than
** strings and strings are considered less than blobs.
**
** If the SQLITE_STOREP2 bit of P5 is set, then do not jump.  Instead,
** store a boolean result (either 0, or 1, or NULL) in register P2.
**
** If the SQLITE_NULLEQ bit is set in P5, then NULL values are considered
** equal to one another, provided that they do not have their MEM_Cleared
** bit set.
*/
/* Opcode: Ne P1 P2 P3 P4 P5
** Synopsis: if r[P1]!=r[P3] goto P2
**
** This works just like the Lt opcode except that the jump is taken if
** the operands in registers P1 and P3 are not equal.  See the Lt opcode for
** additional information.
**
** If SQLITE_NULLEQ is set in P5 then the result of comparison is always either
** true or false and is never NULL.  If both operands are NULL then the result
** of comparison is false.  If either operand is NULL then the result is true.
** If neither operand is NULL the result is the same as it would be if
** the SQLITE_NULLEQ flag were omitted from P5.
*/
/* Opcode: Eq P1 P2 P3 P4 P5
** Synopsis: if r[P1]==r[P3] goto P2
**
** This works just like the Lt opcode except that the jump is taken if
** the operands in registers P1 and P3 are equal.
** See the Lt opcode for additional information.
**
** If SQLITE_NULLEQ is set in P5 then the result of comparison is always either
** true or false and is never NULL.  If both operands are NULL then the result
** of comparison is true.  If either operand is NULL then the result is false.
** If neither operand is NULL the result is the same as it would be if
** the SQLITE_NULLEQ flag were omitted from P5.
*/
/* Opcode: Le P1 P2 P3 P4 P5
** Synopsis: if r[P1]<=r[P3] goto P2
**
** This works just like the Lt opcode except that the jump is taken if
** the content of register P3 is less than or equal to the content of
** register P1.  See the Lt opcode for additional information.
*/
/* Opcode: Gt P1 P2 P3 P4 P5
** Synopsis: if r[P1]>r[P3] goto P2
**
** This works just like the Lt opcode except that the jump is taken if
** the content of register P3 is greater than the content of
** register P1.  See the Lt opcode for additional information.
*/
/* Opcode: Ge P1 P2 P3 P4 P5
** Synopsis: if r[P1]>=r[P3] goto P2
**
** This works just like the Lt opcode except that the jump is taken if
** the content of register P3 is greater than or equal to the content of
** register P1.  See the Lt opcode for additional information.
*/
case OP_Eq:               /* same as TK_EQ, jump, in1, in3 */
case OP_Ne:               /* same as TK_NE, jump, in1, in3 */
case OP_Lt:               /* same as TK_LT, jump, in1, in3 */
case OP_Le:               /* same as TK_LE, jump, in1, in3 */
case OP_Gt:               /* same as TK_GT, jump, in1, in3 */
case OP_Ge: {             /* same as TK_GE, jump, in1, in3 */
  int res;            /* Result of the comparison of pIn1 against pIn3 */
  char affinity;      /* Affinity to use for comparison */
  u16 flags1;         /* Copy of initial value of pIn1->flags */
  u16 flags3;         /* Copy of initial value of pIn3->flags */

  pIn1 = &aMem[pOp->p1];
  pIn3 = &aMem[pOp->p3];
  flags1 = pIn1->flags;
................................................................................
      assert( pOp->opcode==OP_Eq || pOp->opcode==OP_Ne );
      assert( (flags1 & MEM_Cleared)==0 );
      assert( (pOp->p5 & SQLITE_JUMPIFNULL)==0 );
      if( (flags1&MEM_Null)!=0
       && (flags3&MEM_Null)!=0
       && (flags3&MEM_Cleared)==0
      ){
        res = 0;  /* Results are equal */
      }else{
        res = 1;  /* Results are not equal */
      }
    }else{
      /* SQLITE_NULLEQ is clear and at least one operand is NULL,
      ** then the result is always NULL.
      ** The jump is taken if the SQLITE_JUMPIFNULL bit is set.
      */
      if( pOp->p5 & SQLITE_STOREP2 ){
        pOut = &aMem[pOp->p2];

        memAboutToChange(p, pOut);
        MemSetTypeFlag(pOut, MEM_Null);
        REGISTER_TRACE(pOp->p2, pOut);
      }else{
        VdbeBranchTaken(2,3);
        if( pOp->p5 & SQLITE_JUMPIFNULL ){
          goto jump_to_p2;
................................................................................
  }else{
    /* Neither operand is NULL.  Do a comparison. */
    affinity = pOp->p5 & SQLITE_AFF_MASK;
    if( affinity>=SQLITE_AFF_NUMERIC ){
      if( (flags1 | flags3)&MEM_Str ){
        if( (flags1 & (MEM_Int|MEM_Real|MEM_Str))==MEM_Str ){
          applyNumericAffinity(pIn1,0);

          flags3 = pIn3->flags;
        }
        if( (flags3 & (MEM_Int|MEM_Real|MEM_Str))==MEM_Str ){
          applyNumericAffinity(pIn3,0);
        }








      }
    }else if( affinity==SQLITE_AFF_TEXT ){
      if( (flags1 & MEM_Str)==0 && (flags1 & (MEM_Int|MEM_Real))!=0 ){
        testcase( pIn1->flags & MEM_Int );
        testcase( pIn1->flags & MEM_Real );
        sqlite3VdbeMemStringify(pIn1, encoding, 1);
        testcase( (flags1&MEM_Dyn) != (pIn1->flags&MEM_Dyn) );
        flags1 = (pIn1->flags & ~MEM_TypeMask) | (flags1 & MEM_TypeMask);
        flags3 = pIn3->flags;
      }
      if( (flags3 & MEM_Str)==0 && (flags3 & (MEM_Int|MEM_Real))!=0 ){
        testcase( pIn3->flags & MEM_Int );
        testcase( pIn3->flags & MEM_Real );
        sqlite3VdbeMemStringify(pIn3, encoding, 1);
        testcase( (flags3&MEM_Dyn) != (pIn3->flags&MEM_Dyn) );
        flags3 = (pIn3->flags & ~MEM_TypeMask) | (flags3 & MEM_TypeMask);
      }
    }
    assert( pOp->p4type==P4_COLLSEQ || pOp->p4.pColl==0 );
    if( flags1 & MEM_Zero ){
      sqlite3VdbeMemExpandBlob(pIn1);
      flags1 &= ~MEM_Zero;
    }
    if( flags3 & MEM_Zero ){
      sqlite3VdbeMemExpandBlob(pIn3);
      flags3 &= ~MEM_Zero;
    }
    res = sqlite3MemCompare(pIn3, pIn1, pOp->p4.pColl);
  }

  switch( pOp->opcode ){
    case OP_Eq:    res = res==0;     break;
    case OP_Ne:    res = res!=0;     break;
    case OP_Lt:    res = res<0;      break;
    case OP_Le:    res = res<=0;     break;
    case OP_Gt:    res = res>0;      break;
    default:       res = res>=0;     break;
  }

  /* Undo any changes made by applyAffinity() to the input registers. */
  assert( (pIn1->flags & MEM_Dyn) == (flags1 & MEM_Dyn) );
  pIn1->flags = flags1;
  assert( (pIn3->flags & MEM_Dyn) == (flags3 & MEM_Dyn) );
  pIn3->flags = flags3;

  if( pOp->p5 & SQLITE_STOREP2 ){
    pOut = &aMem[pOp->p2];


















    memAboutToChange(p, pOut);
    MemSetTypeFlag(pOut, MEM_Int);
    pOut->u.i = res;
    REGISTER_TRACE(pOp->p2, pOut);
  }else{
    VdbeBranchTaken(res!=0, (pOp->p5 & SQLITE_NULLEQ)?2:3);
    if( res ){
      goto jump_to_p2;
    }
  }
  break;
}



















/* Opcode: Permutation * * * P4 *
**
** Set the permutation used by the OP_Compare operator to be the array
** of integers in P4.
**
** The permutation is only valid until the next OP_Compare that has
................................................................................
    pOut->u.i = ~sqlite3VdbeIntValue(pIn1);
  }
  break;
}

/* Opcode: Once P1 P2 * * *
**
** Check the "once" flag number P1. If it is set, jump to instruction P2. 
** Otherwise, set the flag and fall through to the next instruction.
** In other words, this opcode causes all following opcodes up through P2
** (but not including P2) to run just once and to be skipped on subsequent
** times through the loop.
**
** All "once" flags are initially cleared whenever a prepared statement
** first begins to run.
*/
case OP_Once: {             /* jump */
  assert( pOp->p1<p->nOnceFlag );

  VdbeBranchTaken(p->aOnceFlag[pOp->p1]!=0, 2);
  if( p->aOnceFlag[pOp->p1] ){

    goto jump_to_p2;
  }else{
    p->aOnceFlag[pOp->p1] = 1;

  }
  break;
}

/* Opcode: If P1 P2 P3 * *
**
** Jump to P2 if the value in register P1 is true.  The value
................................................................................
  if( c ){
    goto jump_to_p2;
  }
  break;
}

/* Opcode: IsNull P1 P2 * * *
** Synopsis:  if r[P1]==NULL goto P2
**
** Jump to P2 if the value in register P1 is NULL.
*/
case OP_IsNull: {            /* same as TK_ISNULL, jump, in1 */
  pIn1 = &aMem[pOp->p1];
  VdbeBranchTaken( (pIn1->flags & MEM_Null)!=0, 2);
  if( (pIn1->flags & MEM_Null)!=0 ){
................................................................................
  if( (pIn1->flags & MEM_Null)==0 ){
    goto jump_to_p2;
  }
  break;
}

/* Opcode: Column P1 P2 P3 P4 P5
** Synopsis:  r[P3]=PX
**
** Interpret the data that cursor P1 points to as a structure built using
** the MakeRecord instruction.  (See the MakeRecord opcode for additional
** information about the format of the data.)  Extract the P2-th column
** from this record.  If there are less that (P2+1) 
** values in the record, extract a NULL.
**
................................................................................
  }
  pBt = db->aDb[pOp->p1].pBt;

  if( pBt ){
    rc = sqlite3BtreeBeginTrans(pBt, pOp->p2);
    testcase( rc==SQLITE_BUSY_SNAPSHOT );
    testcase( rc==SQLITE_BUSY_RECOVERY );

    if( (rc&0xff)==SQLITE_BUSY ){
      p->pc = (int)(pOp - aOp);
      p->rc = rc;
      goto vdbe_return;
    }
    if( rc!=SQLITE_OK ){
      goto abort_due_to_error;
    }

    if( pOp->p2 && p->usesStmtJournal 
     && (db->autoCommit==0 || db->nVdbeRead>1) 
    ){
      assert( sqlite3BtreeIsInTrans(pBt) );
................................................................................
      ** counter. If the statement transaction needs to be rolled back,
      ** the value of this counter needs to be restored too.  */
      p->nStmtDefCons = db->nDeferredCons;
      p->nStmtDefImmCons = db->nDeferredImmCons;
    }

    /* Gather the schema version number for checking:
    ** IMPLEMENTATION-OF: R-32195-19465 The schema version is used by SQLite
    ** each time a query is executed to ensure that the internal cache of the
    ** schema used when compiling the SQL query matches the schema of the
    ** database against which the compiled query is actually executed.
    */
    sqlite3BtreeGetMeta(pBt, BTREE_SCHEMA_VERSION, (u32 *)&iMeta);
    iGen = db->aDb[pOp->p1].pSchema->iGeneration;
  }else{
    iGen = iMeta = 0;
  }
  assert( pOp->p5==0 || pOp->p4type==P4_INT32 );
................................................................................
    assert( oc!=OP_SeekGE || r.default_rc==+1 );
    assert( oc!=OP_SeekLT || r.default_rc==+1 );

    r.aMem = &aMem[pOp->p3];
#ifdef SQLITE_DEBUG
    { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); }
#endif
    ExpandBlob(r.aMem);
    r.eqSeen = 0;
    rc = sqlite3BtreeMovetoUnpacked(pC->uc.pCursor, &r, 0, 0, &res);
    if( rc!=SQLITE_OK ){
      goto abort_due_to_error;
    }
    if( eqOnly && r.eqSeen==0 ){
      assert( res!=0 );
................................................................................
    goto jump_to_p2;
  }else if( eqOnly ){
    assert( pOp[1].opcode==OP_IdxLT || pOp[1].opcode==OP_IdxGT );
    pOp++; /* Skip the OP_IdxLt or OP_IdxGT that follows */
  }
  break;
}
  

/* Opcode: Found P1 P2 P3 P4 *
** Synopsis: key=r[P3@P4]
**
** If P4==0 then register P3 holds a blob constructed by MakeRecord.  If
** P4>0 then register P3 is the first of P4 registers that form an unpacked
** record.
................................................................................
  assert( pC->uc.pCursor!=0 );
  assert( pC->isTable==0 );
  pFree = 0;
  if( pOp->p4.i>0 ){
    r.pKeyInfo = pC->pKeyInfo;
    r.nField = (u16)pOp->p4.i;
    r.aMem = pIn3;

    for(ii=0; ii<r.nField; ii++){
      assert( memIsValid(&r.aMem[ii]) );
      ExpandBlob(&r.aMem[ii]);
#ifdef SQLITE_DEBUG
      if( ii ) REGISTER_TRACE(pOp->p3+ii, &r.aMem[ii]);
#endif
    }

    pIdxKey = &r;
  }else{
    pIdxKey = sqlite3VdbeAllocUnpackedRecord(
        pC->pKeyInfo, aTempRec, sizeof(aTempRec), &pFree
    );
    if( pIdxKey==0 ) goto no_mem;
    assert( pIn3->flags & MEM_Blob );
    ExpandBlob(pIn3);
    sqlite3VdbeRecordUnpack(pC->pKeyInfo, pIn3->n, pIn3->z, pIdxKey);
  }
  pIdxKey->default_rc = 0;
  takeJump = 0;
  if( pOp->opcode==OP_NoConflict ){
    /* For the OP_NoConflict opcode, take the jump if any of the
    ** input fields are NULL, since any key with a NULL will not
................................................................................
** value of register P2 will then change.  Make sure this does not
** cause any problems.)
**
** This instruction only works on tables.  The equivalent instruction
** for indices is OP_IdxInsert.
*/
/* Opcode: InsertInt P1 P2 P3 P4 P5
** Synopsis:  intkey=P3 data=r[P2]
**
** This works exactly like OP_Insert except that the key is the
** integer value P3, not the value of the integer stored in register P3.
*/
case OP_Insert: 
case OP_InsertInt: {
  Mem *pData;       /* MEM cell holding data for the record to be inserted */
................................................................................
    assert( pOp->opcode==OP_InsertInt );
    x.nKey = pOp->p3;
  }

  if( pOp->p4type==P4_TABLE && HAS_UPDATE_HOOK(db) ){
    assert( pC->isTable );
    assert( pC->iDb>=0 );
    zDb = db->aDb[pC->iDb].zName;
    pTab = pOp->p4.pTab;
    assert( HasRowid(pTab) );
    op = ((pOp->p5 & OPFLAG_ISUPDATE) ? SQLITE_UPDATE : SQLITE_INSERT);
  }else{
    pTab = 0; /* Not needed.  Silence a comiler warning. */
    zDb = 0;  /* Not needed.  Silence a compiler warning. */
  }
................................................................................
**
** If the OPFLAG_NCHANGE flag of P2 (NB: P2 not P5) is set, then the row
** change count is incremented (otherwise not).
**
** P1 must not be pseudo-table.  It has to be a real table with
** multiple rows.
**
** If P4 is not NULL then it points to a Table struture. In this case either 
** the update or pre-update hook, or both, may be invoked. The P1 cursor must
** have been positioned using OP_NotFound prior to invoking this opcode in 
** this case. Specifically, if one is configured, the pre-update hook is 
** invoked if P4 is not NULL. The update-hook is invoked if one is configured, 
** P4 is not NULL, and the OPFLAG_NCHANGE flag is set in P2.
**
** If the OPFLAG_ISUPDATE flag is set in P2, then P3 contains the address
................................................................................
  ** the name of the db to pass as to it. Also set local pTab to a copy
  ** of p4.pTab. Finally, if p5 is true, indicating that this cursor was
  ** last moved with OP_Next or OP_Prev, not Seek or NotFound, set 
  ** VdbeCursor.movetoTarget to the current rowid.  */
  if( pOp->p4type==P4_TABLE && HAS_UPDATE_HOOK(db) ){
    assert( pC->iDb>=0 );
    assert( pOp->p4.pTab!=0 );
    zDb = db->aDb[pC->iDb].zName;
    pTab = pOp->p4.pTab;
    if( (pOp->p5 & OPFLAG_SAVEPOSITION)!=0 && pC->isTable ){
      pC->movetoTarget = sqlite3BtreeIntegerKey(pC->uc.pCursor);
    }
  }else{
    zDb = 0;   /* Not needed.  Silence a compiler warning. */
    pTab = 0;  /* Not needed.  Silence a compiler warning. */
................................................................................
case OP_ResetCount: {
  sqlite3VdbeSetChanges(db, p->nChange);
  p->nChange = 0;
  break;
}

/* Opcode: SorterCompare P1 P2 P3 P4
** Synopsis:  if key(P1)!=trim(r[P3],P4) goto P2
**
** P1 is a sorter cursor. This instruction compares a prefix of the
** record blob in register P3 against a prefix of the entry that 
** the sorter cursor currently points to.  Only the first P4 fields
** of r[P3] and the sorter record are compared.
**
** If either P3 or the sorter contains a NULL in one of their significant
................................................................................
  rc = ExpandBlob(pIn2);
  if( rc ) goto abort_due_to_error;
  if( pOp->opcode==OP_SorterInsert ){
    rc = sqlite3VdbeSorterWrite(pC, pIn2);
  }else{
    x.nKey = pIn2->n;
    x.pKey = pIn2->z;
    x.nData = 0;
    x.nZero = 0;
    x.pData = 0;
    rc = sqlite3BtreeInsert(pC->uc.pCursor, &x, pOp->p3, 
        ((pOp->p5 & OPFLAG_USESEEKRESULT) ? pC->seekResult : 0)
        );
    assert( pC->deferredMoveto==0 );
    pC->cacheStatus = CACHE_STALE;
  }
  if( rc) goto abort_due_to_error;
................................................................................
  }
  assert( pC->deferredMoveto==0 );
  pC->cacheStatus = CACHE_STALE;
  break;
}

/* Opcode: Seek P1 * P3 P4 *
** Synopsis:  Move P3 to P1.rowid
**
** P1 is an open index cursor and P3 is a cursor on the corresponding
** table.  This opcode does a deferred seek of the P3 table cursor
** to the row that corresponds to the current row of P1.
**
** This is a deferred seek.  Nothing actually happens until
** the cursor is used to read a record.  That way, if no reads
................................................................................
  /* Used to be a conditional */ {
    zMaster = SCHEMA_TABLE(iDb);
    initData.db = db;
    initData.iDb = pOp->p1;
    initData.pzErrMsg = &p->zErrMsg;
    zSql = sqlite3MPrintf(db,
       "SELECT name, rootpage, sql FROM '%q'.%s WHERE %s ORDER BY rowid",
       db->aDb[iDb].zName, zMaster, pOp->p4.z);
    if( zSql==0 ){
      rc = SQLITE_NOMEM_BKPT;
    }else{
      assert( db->init.busy==0 );
      db->init.busy = 1;
      initData.rc = SQLITE_OK;
      assert( !db->mallocFailed );
................................................................................
  UPDATE_MAX_BLOBSIZE(pIn1);
  sqlite3VdbeChangeEncoding(pIn1, encoding);
  break;
}
#endif /* SQLITE_OMIT_INTEGRITY_CHECK */

/* Opcode: RowSetAdd P1 P2 * * *
** Synopsis:  rowset(P1)=r[P2]
**
** Insert the integer value held by register P2 into a boolean index
** held in register P1.
**
** An assertion fails if P2 is not an integer.
*/
case OP_RowSetAdd: {       /* in1, in2 */
................................................................................
    if( (pIn1->flags & MEM_RowSet)==0 ) goto no_mem;
  }
  sqlite3RowSetInsert(pIn1->u.pRowSet, pIn2->u.i);
  break;
}

/* Opcode: RowSetRead P1 P2 P3 * *
** Synopsis:  r[P3]=rowset(P1)
**
** Extract the smallest value from boolean index P1 and put that value into
** register P3.  Or, if boolean index P1 is initially empty, leave P3
** unchanged and jump to instruction P2.
*/
case OP_RowSetRead: {       /* jump, in1, out3 */
  i64 val;
................................................................................
    ** variable nMem (and later, VdbeFrame.nChildMem) to this value.
    */
    nMem = pProgram->nMem + pProgram->nCsr;
    assert( nMem>0 );
    if( pProgram->nCsr==0 ) nMem++;
    nByte = ROUND8(sizeof(VdbeFrame))
              + nMem * sizeof(Mem)
              + pProgram->nCsr * sizeof(VdbeCursor *)
              + pProgram->nOnce * sizeof(u8);
    pFrame = sqlite3DbMallocZero(db, nByte);
    if( !pFrame ){
      goto no_mem;
    }
    sqlite3VdbeMemRelease(pRt);
    pRt->flags = MEM_Frame;
    pRt->u.pFrame = pFrame;
................................................................................
    pFrame->aMem = p->aMem;
    pFrame->nMem = p->nMem;
    pFrame->apCsr = p->apCsr;
    pFrame->nCursor = p->nCursor;
    pFrame->aOp = p->aOp;
    pFrame->nOp = p->nOp;
    pFrame->token = pProgram->token;
    pFrame->aOnceFlag = p->aOnceFlag;
    pFrame->nOnceFlag = p->nOnceFlag;
#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
    pFrame->anExec = p->anExec;
#endif

    pEnd = &VdbeFrameMem(pFrame)[pFrame->nChildMem];
    for(pMem=VdbeFrameMem(pFrame); pMem!=pEnd; pMem++){
      pMem->flags = MEM_Undefined;
................................................................................
  p->pFrame = pFrame;
  p->aMem = aMem = VdbeFrameMem(pFrame);
  p->nMem = pFrame->nChildMem;
  p->nCursor = (u16)pFrame->nChildCsr;
  p->apCsr = (VdbeCursor **)&aMem[p->nMem];
  p->aOp = aOp = pProgram->aOp;
  p->nOp = pProgram->nOp;
  p->aOnceFlag = (u8 *)&p->apCsr[p->nCursor];
  p->nOnceFlag = pProgram->nOnce;
#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
  p->anExec = 0;
#endif
  pOp = &aOp[-1];
  memset(p->aOnceFlag, 0, p->nOnceFlag);

  break;
}

/* Opcode: Param P1 P2 * * *
**
** This opcode is only ever present in sub-programs called via the 
................................................................................
  sqlite3VdbeChangeEncoding(pOut, encoding);
  if( rc ) goto abort_due_to_error;
  break;
};
#endif /* SQLITE_OMIT_PRAGMA */

#if !defined(SQLITE_OMIT_VACUUM) && !defined(SQLITE_OMIT_ATTACH)
/* Opcode: Vacuum * * * * *
**
** Vacuum the entire database.  This opcode will cause other virtual
** machines to be created and run.  It may not be called from within
** a transaction.
*/
case OP_Vacuum: {
  assert( p->readOnly==0 );
  rc = sqlite3RunVacuum(&p->zErrMsg, db);
  if( rc ) goto abort_due_to_error;
  break;
}
#endif

#if !defined(SQLITE_OMIT_AUTOVACUUM)
/* Opcode: IncrVacuum P1 P2 * * *
................................................................................
  }
  pOut->u.i = sqlite3BtreeMaxPageCount(pBt, newMax);
  break;
}
#endif


/* Opcode: Init * P2 * P4 *
** Synopsis:  Start at P2
**
** Programs contain a single instance of this opcode as the very first
** opcode.
**
** If tracing is enabled (by the sqlite3_trace()) interface, then
** the UTF-8 string contained in P4 is emitted on the trace callback.
** Or if P4 is blank, use the string returned by sqlite3_sql().
**
** If P2 is not zero, jump to instruction P2.



*/
case OP_Init: {          /* jump */
  char *zTrace;


  /* If the P4 argument is not NULL, then it must be an SQL comment string.
  ** The "--" string is broken up to prevent false-positives with srcck1.c.
  **
  ** This assert() provides evidence for:
  ** EVIDENCE-OF: R-50676-09860 The callback can compute the same text that
  ** would have been returned by the legacy sqlite3_trace() interface by
  ** using the X argument when X begins with "--" and invoking
  ** sqlite3_expanded_sql(P) otherwise.
  */
  assert( pOp->p4.z==0 || strncmp(pOp->p4.z, "-" "- ", 3)==0 );


#ifndef SQLITE_OMIT_TRACE
  if( (db->mTrace & (SQLITE_TRACE_STMT|SQLITE_TRACE_LEGACY))!=0
   && !p->doingRerun
   && (zTrace = (pOp->p4.z ? pOp->p4.z : p->zSql))!=0
  ){
#ifndef SQLITE_OMIT_DEPRECATED
................................................................................
    {
      (void)db->xTrace(SQLITE_TRACE_STMT, db->pTraceArg, p, zTrace);
    }
  }
#ifdef SQLITE_USE_FCNTL_TRACE
  zTrace = (pOp->p4.z ? pOp->p4.z : p->zSql);
  if( zTrace ){
    int i;
    for(i=0; i<db->nDb; i++){
      if( DbMaskTest(p->btreeMask, i)==0 ) continue;
      sqlite3_file_control(db, db->aDb[i].zName, SQLITE_FCNTL_TRACE, zTrace);
    }
  }
#endif /* SQLITE_USE_FCNTL_TRACE */
#ifdef SQLITE_DEBUG
  if( (db->flags & SQLITE_SqlTrace)!=0
   && (zTrace = (pOp->p4.z ? pOp->p4.z : p->zSql))!=0
  ){
    sqlite3DebugPrintf("SQL-trace: %s\n", zTrace);
  }
#endif /* SQLITE_DEBUG */
#endif /* SQLITE_OMIT_TRACE */








  if( pOp->p2 ) goto jump_to_p2;
  break;
}

#ifdef SQLITE_ENABLE_CURSOR_HINTS
/* Opcode: CursorHint P1 * * P4 *
**
** Provide a hint to cursor P1 that it only needs to return rows that
** satisfy the Expr in P4.  TK_REGISTER terms in the P4 expression refer
................................................................................
  *pzErr = zErr;
  return rc;
}

/*
** Open a blob handle.
*/
SQLITE_API int SQLITE_APICALL sqlite3_blob_open(
  sqlite3* db,            /* The database connection */
  const char *zDb,        /* The attached database containing the blob */
  const char *zTable,     /* The table containing the blob */
  const char *zColumn,    /* The column containing the blob */
  sqlite_int64 iRow,      /* The row containing the glob */
  int flags,              /* True -> read/write access, false -> read-only */
  sqlite3_blob **ppBlob   /* Handle for accessing the blob returned here */
................................................................................
        pParse->zErrMsg = 0;
      }
      rc = SQLITE_ERROR;
      sqlite3BtreeLeaveAll(db);
      goto blob_open_out;
    }
    pBlob->pTab = pTab;
    pBlob->zDb = db->aDb[sqlite3SchemaToIndex(db, pTab->pSchema)].zName;

    /* Now search pTab for the exact column. */
    for(iCol=0; iCol<pTab->nCol; iCol++) {
      if( sqlite3StrICmp(pTab->aCol[iCol].zName, zColumn)==0 ){
        break;
      }
    }
................................................................................
  return rc;
}

/*
** Close a blob handle that was previously created using
** sqlite3_blob_open().
*/
SQLITE_API int SQLITE_APICALL sqlite3_blob_close(sqlite3_blob *pBlob){
  Incrblob *p = (Incrblob *)pBlob;
  int rc;
  sqlite3 *db;

  if( p ){
    db = p->db;
    sqlite3_mutex_enter(db->mutex);
................................................................................
  sqlite3_mutex_leave(db->mutex);
  return rc;
}

/*
** Read data from a blob handle.
*/
SQLITE_API int SQLITE_APICALL sqlite3_blob_read(sqlite3_blob *pBlob, void *z, int n, int iOffset){
  return blobReadWrite(pBlob, z, n, iOffset, sqlite3BtreeData);
}

/*
** Write data to a blob handle.
*/
SQLITE_API int SQLITE_APICALL sqlite3_blob_write(sqlite3_blob *pBlob, const void *z, int n, int iOffset){
  return blobReadWrite(pBlob, (void *)z, n, iOffset, sqlite3BtreePutData);
}

/*
** Query a blob handle for the size of the data.
**
** The Incrblob.nByte field is fixed for the lifetime of the Incrblob
** so no mutex is required for access.
*/
SQLITE_API int SQLITE_APICALL sqlite3_blob_bytes(sqlite3_blob *pBlob){
  Incrblob *p = (Incrblob *)pBlob;
  return (p && p->pStmt) ? p->nByte : 0;
}

/*
** Move an existing blob handle to point to a different row of the same
** database table.
................................................................................
**
** If an error occurs, or if the specified row does not exist or does not
** contain a blob or text value, then an error code is returned and the
** database handle error code and message set. If this happens, then all 
** subsequent calls to sqlite3_blob_xxx() functions (except blob_close()) 
** immediately return SQLITE_ABORT.
*/
SQLITE_API int SQLITE_APICALL sqlite3_blob_reopen(sqlite3_blob *pBlob, sqlite3_int64 iRow){
  int rc;
  Incrblob *p = (Incrblob *)pBlob;
  sqlite3 *db;

  if( p==0 ) return SQLITE_MISUSE_BKPT;
  db = p->db;
  sqlite3_mutex_enter(db->mutex);
................................................................................
** and WRC_Continue to continue.
*/
static SQLITE_NOINLINE int walkExpr(Walker *pWalker, Expr *pExpr){
  int rc;
  testcase( ExprHasProperty(pExpr, EP_TokenOnly) );
  testcase( ExprHasProperty(pExpr, EP_Reduced) );
  rc = pWalker->xExprCallback(pWalker, pExpr);
  if( rc==WRC_Continue
              && !ExprHasProperty(pExpr,EP_TokenOnly) ){


    if( sqlite3WalkExpr(pWalker, pExpr->pLeft) ) return WRC_Abort;
    if( sqlite3WalkExpr(pWalker, pExpr->pRight) ) return WRC_Abort;
    if( ExprHasProperty(pExpr, EP_xIsSelect) ){
      if( sqlite3WalkSelect(pWalker, pExpr->x.pSelect) ) return WRC_Abort;
    }else{

      if( sqlite3WalkExprList(pWalker, pExpr->x.pList) ) return WRC_Abort;
    }
  }
  return rc & WRC_Abort;
}
SQLITE_PRIVATE int sqlite3WalkExpr(Walker *pWalker, Expr *pExpr){
  return pExpr ? walkExpr(pWalker,pExpr) : WRC_Continue;
}

/*
** Call sqlite3WalkExpr() for every expression in list p or until
................................................................................
      /* Silently ignore database qualifiers inside CHECK constraints and
      ** partial indices.  Do not raise errors because that might break
      ** legacy and because it does not hurt anything to just ignore the
      ** database name. */
      zDb = 0;
    }else{
      for(i=0; i<db->nDb; i++){
        assert( db->aDb[i].zName );
        if( sqlite3StrICmp(db->aDb[i].zName,zDb)==0 ){
          pSchema = db->aDb[i].pSchema;
          break;
        }
      }
    }
  }

................................................................................
      const char *zColumn;
      const char *zTable;
      const char *zDb;
      Expr *pRight;

      /* if( pSrcList==0 ) break; */
      notValid(pParse, pNC, "the \".\" operator", NC_IdxExpr);
      /*notValid(pParse, pNC, "the \".\" operator", NC_PartIdx|NC_IsCheck, 1);*/
      pRight = pExpr->pRight;
      if( pRight->op==TK_ID ){
        zDb = 0;
        zTable = pExpr->pLeft->u.zToken;
        zColumn = pRight->u.zToken;
      }else{
        assert( pRight->op==TK_DOT );
................................................................................
    */
    case TK_FUNCTION: {
      ExprList *pList = pExpr->x.pList;    /* The argument list */
      int n = pList ? pList->nExpr : 0;    /* Number of arguments */
      int no_such_func = 0;       /* True if no such function exists */
      int wrong_num_args = 0;     /* True if wrong number of arguments */
      int is_agg = 0;             /* True if is an aggregate function */
      int auth;                   /* Authorization to use the function */
      int nId;                    /* Number of characters in function name */
      const char *zId;            /* The function name. */
      FuncDef *pDef;              /* Information about the function */
      u8 enc = ENC(pParse->db);   /* The database encoding */

      assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
      notValid(pParse, pNC, "functions", NC_PartIdx);
      zId = pExpr->u.zToken;
      nId = sqlite3Strlen30(zId);
      pDef = sqlite3FindFunction(pParse->db, zId, n, enc, 0);
      if( pDef==0 ){
        pDef = sqlite3FindFunction(pParse->db, zId, -2, enc, 0);
        if( pDef==0 ){
          no_such_func = 1;
................................................................................
            ** EVIDENCE-OF: R-53436-40973 The likely(X) function is equivalent
            ** to likelihood(X,0.9375). */
            /* TUNING: unlikely() probability is 0.0625.  likely() is 0.9375 */
            pExpr->iTable = pDef->zName[0]=='u' ? 8388608 : 125829120;
          }             
        }
#ifndef SQLITE_OMIT_AUTHORIZATION

        auth = sqlite3AuthCheck(pParse, SQLITE_FUNCTION, 0, pDef->zName, 0);
        if( auth!=SQLITE_OK ){
          if( auth==SQLITE_DENY ){
            sqlite3ErrorMsg(pParse, "not authorized to use function: %s",
                                    pDef->zName);
            pNC->nErr++;
          }
          pExpr->op = TK_NULL;
          return WRC_Prune;

        }
#endif
        if( pDef->funcFlags & (SQLITE_FUNC_CONSTANT|SQLITE_FUNC_SLOCHNG) ){
          /* For the purposes of the EP_ConstFunc flag, date and time
          ** functions and other functions that change slowly are considered
          ** constant because they are constant for the duration of one query */
          ExprSetProperty(pExpr,EP_ConstFunc);
        }
        if( (pDef->funcFlags & SQLITE_FUNC_CONSTANT)==0 ){
          /* Date/time functions that use 'now', and other functions like
          ** sqlite_version() that might change over time cannot be used
          ** in an index. */
          notValid(pParse, pNC, "non-deterministic functions", NC_IdxExpr);

        }
      }
      if( is_agg && (pNC->ncFlags & NC_AllowAgg)==0 ){
        sqlite3ErrorMsg(pParse, "misuse of aggregate function %.*s()", nId,zId);
        pNC->nErr++;
        is_agg = 0;
      }else if( no_such_func && pParse->db->init.busy==0 ){




        sqlite3ErrorMsg(pParse, "no such function: %.*s", nId, zId);
        pNC->nErr++;
      }else if( wrong_num_args ){
        sqlite3ErrorMsg(pParse,"wrong number of arguments to function %.*s()",
             nId, zId);
        pNC->nErr++;
      }
................................................................................
        }
      }
      break;
    }
    case TK_VARIABLE: {
      notValid(pParse, pNC, "parameters", NC_IsCheck|NC_PartIdx|NC_IdxExpr);
      break;



























    }
  }
  return (pParse->nErr || pParse->db->mallocFailed) ? WRC_Abort : WRC_Continue;
}

/*
** pEList is a list of expressions which are really the result set of the
................................................................................
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains routines used for analyzing expressions and
** for generating VDBE code that evaluates expressions in SQLite.
*/
/* #include "sqliteInt.h" */













/*
** Return the 'affinity' of the expression pExpr if any.
**
** If pExpr is a column, a reference to a column via an 'AS' alias,
** or a sub-select with a column as the return value, then the 
** affinity of that column is returned. Otherwise, 0x00 is returned,
................................................................................
  pExpr = sqlite3ExprSkipCollate(pExpr);
  if( pExpr->flags & EP_Generic ) return 0;
  op = pExpr->op;
  if( op==TK_SELECT ){
    assert( pExpr->flags&EP_xIsSelect );
    return sqlite3ExprAffinity(pExpr->x.pSelect->pEList->a[0].pExpr);
  }

#ifndef SQLITE_OMIT_CAST
  if( op==TK_CAST ){
    assert( !ExprHasProperty(pExpr, EP_IntValue) );
    return sqlite3AffinityType(pExpr->u.zToken, 0);
  }
#endif
  if( (op==TK_AGG_COLUMN || op==TK_COLUMN || op==TK_REGISTER) 
   && pExpr->pTab!=0
  ){
    /* op==TK_REGISTER && pExpr->pTab!=0 happens when pExpr was originally
    ** a TK_COLUMN but was previously evaluated and cached in a register */
    int j = pExpr->iColumn;
    if( j<0 ) return SQLITE_AFF_INTEGER;
    assert( pExpr->pTab && j<pExpr->pTab->nCol );
    return pExpr->pTab->aCol[j].affinity;
  }
  return pExpr->affinity;
}

/*
** Set the collating sequence for expression pExpr to be the collating
** sequence named by pToken.   Return a pointer to a new Expr node that
................................................................................
          pExpr->op==TK_NE || pExpr->op==TK_IS || pExpr->op==TK_ISNOT );
  assert( pExpr->pLeft );
  aff = sqlite3ExprAffinity(pExpr->pLeft);
  if( pExpr->pRight ){
    aff = sqlite3CompareAffinity(pExpr->pRight, aff);
  }else if( ExprHasProperty(pExpr, EP_xIsSelect) ){
    aff = sqlite3CompareAffinity(pExpr->x.pSelect->pEList->a[0].pExpr, aff);
  }else if( !aff ){
    aff = SQLITE_AFF_BLOB;
  }
  return aff;
}

/*
** pExpr is a comparison expression, eg. '=', '<', IN(...) etc.
................................................................................
  p4 = sqlite3BinaryCompareCollSeq(pParse, pLeft, pRight);
  p5 = binaryCompareP5(pLeft, pRight, jumpIfNull);
  addr = sqlite3VdbeAddOp4(pParse->pVdbe, opcode, in2, dest, in1,
                           (void*)p4, P4_COLLSEQ);
  sqlite3VdbeChangeP5(pParse->pVdbe, (u8)p5);
  return addr;
}









































































































































































































































































#if SQLITE_MAX_EXPR_DEPTH>0
/*
** Check that argument nHeight is less than or equal to the maximum
** expression depth allowed. If it is not, leave an error message in
** pParse.
*/
................................................................................
** Special case:  If op==TK_INTEGER and pToken points to a string that
** can be translated into a 32-bit integer, then the token is not
** stored in u.zToken.  Instead, the integer values is written
** into u.iValue and the EP_IntValue flag is set.  No extra storage
** is allocated to hold the integer text and the dequote flag is ignored.
*/
SQLITE_PRIVATE Expr *sqlite3ExprAlloc(
  sqlite3 *db,            /* Handle for sqlite3DbMallocZero() (may be null) */
  int op,                 /* Expression opcode */
  const Token *pToken,    /* Token argument.  Might be NULL */
  int dequote             /* True to dequote */
){
  Expr *pNew;
  int nExtra = 0;
  int iValue = 0;
................................................................................
** the SQL statement comes from an external source.
**
** Wildcards of the form ":aaa", "@aaa", or "$aaa" are assigned the same number
** as the previous instance of the same wildcard.  Or if this is the first
** instance of the wildcard, the next sequential variable number is
** assigned.
*/
SQLITE_PRIVATE void sqlite3ExprAssignVarNumber(Parse *pParse, Expr *pExpr){
  sqlite3 *db = pParse->db;
  const char *z;

  if( pExpr==0 ) return;
  assert( !ExprHasProperty(pExpr, EP_IntValue|EP_Reduced|EP_TokenOnly) );
  z = pExpr->u.zToken;
  assert( z!=0 );
  assert( z[0]!=0 );

  if( z[1]==0 ){
    /* Wildcard of the form "?".  Assign the next variable number */
    assert( z[0]=='?' );
    pExpr->iColumn = (ynVar)(++pParse->nVar);
  }else{
    ynVar x = 0;
    u32 n = sqlite3Strlen30(z);
    if( z[0]=='?' ){
      /* Wildcard of the form "?nnn".  Convert "nnn" to an integer and
      ** use it as the variable number */
      i64 i;
      int bOk = 0==sqlite3Atoi64(&z[1], &i, n-1, SQLITE_UTF8);
      pExpr->iColumn = x = (ynVar)i;
      testcase( i==0 );
      testcase( i==1 );
      testcase( i==db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER]-1 );
      testcase( i==db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER] );
      if( bOk==0 || i<1 || i>db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER] ){
        sqlite3ErrorMsg(pParse, "variable number must be between ?1 and ?%d",
            db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER]);
        x = 0;
      }
      if( i>pParse->nVar ){
        pParse->nVar = (int)i;
      }
    }else{
      /* Wildcards like ":aaa", "$aaa" or "@aaa".  Reuse the same variable
      ** number as the prior appearance of the same name, or if the name
      ** has never appeared before, reuse the same variable number
      */
      ynVar i;
      for(i=0; i<pParse->nzVar; i++){
        if( pParse->azVar[i] && strcmp(pParse->azVar[i],z)==0 ){
          pExpr->iColumn = x = (ynVar)i+1;
          break;
        }
      }
      if( x==0 ) x = pExpr->iColumn = (ynVar)(++pParse->nVar);
    }
    if( x>0 ){
      if( x>pParse->nzVar ){
        char **a;
        a = sqlite3DbRealloc(db, pParse->azVar, x*sizeof(a[0]));
        if( a==0 ){
          assert( db->mallocFailed ); /* Error reported through mallocFailed */
          return;
        }
        pParse->azVar = a;
        memset(&a[pParse->nzVar], 0, (x-pParse->nzVar)*sizeof(a[0]));
        pParse->nzVar = x;
      }
      if( z[0]!='?' || pParse->azVar[x-1]==0 ){
        sqlite3DbFree(db, pParse->azVar[x-1]);
        pParse->azVar[x-1] = sqlite3DbStrNDup(db, z, n);
      }
    }
  } 
  if( !pParse->nErr && pParse->nVar>db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER] ){
    sqlite3ErrorMsg(pParse, "too many SQL variables");
  }
}

/*
** Recursively delete an expression tree.
*/
static SQLITE_NOINLINE void sqlite3ExprDeleteNN(sqlite3 *db, Expr *p){
  assert( p!=0 );
  /* Sanity check: Assert that the IntValue is non-negative if it exists */
  assert( !ExprHasProperty(p, EP_IntValue) || p->u.iValue>=0 );

  if( !ExprHasProperty(p, EP_TokenOnly) ){






    /* The Expr.x union is never used at the same time as Expr.pRight */
    assert( p->x.pList==0 || p->pRight==0 );
    sqlite3ExprDelete(db, p->pLeft);

    sqlite3ExprDelete(db, p->pRight);
    if( ExprHasProperty(p, EP_MemToken) ) sqlite3DbFree(db, p->u.zToken);
    if( ExprHasProperty(p, EP_xIsSelect) ){
      sqlite3SelectDelete(db, p->x.pSelect);
    }else{
      sqlite3ExprListDelete(db, p->x.pList);
    }
  }

  if( !ExprHasProperty(p, EP_Static) ){
    sqlite3DbFree(db, p);
  }
}
SQLITE_PRIVATE void sqlite3ExprDelete(sqlite3 *db, Expr *p){
  if( p ) sqlite3ExprDeleteNN(db, p);
}
................................................................................

    /* Copy the p->u.zToken string, if any. */
    if( nToken ){
      char *zToken = pNew->u.zToken = (char*)&zAlloc[nNewSize];
      memcpy(zToken, p->u.zToken, nToken);
    }

    if( 0==((p->flags|pNew->flags) & EP_TokenOnly) ){
      /* Fill in the pNew->x.pSelect or pNew->x.pList member. */
      if( ExprHasProperty(p, EP_xIsSelect) ){
        pNew->x.pSelect = sqlite3SelectDup(db, p->x.pSelect, dupFlags);
      }else{
        pNew->x.pList = sqlite3ExprListDup(db, p->x.pList, dupFlags);
      }
    }

    /* Fill in pNew->pLeft and pNew->pRight. */
    if( ExprHasProperty(pNew, EP_Reduced|EP_TokenOnly) ){
      zAlloc += dupedExprNodeSize(p, dupFlags);
      if( ExprHasProperty(pNew, EP_Reduced) ){
        pNew->pLeft = p->pLeft ?
                      exprDup(db, p->pLeft, EXPRDUP_REDUCE, &zAlloc) : 0;
        pNew->pRight = p->pRight ?
                       exprDup(db, p->pRight, EXPRDUP_REDUCE, &zAlloc) : 0;
      }
      if( pzBuffer ){
        *pzBuffer = zAlloc;
      }
    }else{
      if( !ExprHasProperty(p, EP_TokenOnly) ){



        pNew->pLeft = sqlite3ExprDup(db, p->pLeft, 0);

        pNew->pRight = sqlite3ExprDup(db, p->pRight, 0);
      }
    }
  }
  return pNew;
}

................................................................................

no_mem:     
  /* Avoid leaking memory if malloc has failed. */
  sqlite3ExprDelete(db, pExpr);
  sqlite3ExprListDelete(db, pList);
  return 0;
}























































/*
** Set the sort order for the last element on the given ExprList.
*/
SQLITE_PRIVATE void sqlite3ExprListSetSortOrder(ExprList *p, int iSortOrder){
  if( p==0 ) return;
  assert( SQLITE_SO_UNDEFINED<0 && SQLITE_SO_ASC>=0 && SQLITE_SO_DESC>0 );
................................................................................
** table, then return NULL.
*/
#ifndef SQLITE_OMIT_SUBQUERY
static Select *isCandidateForInOpt(Expr *pX){
  Select *p;
  SrcList *pSrc;
  ExprList *pEList;
  Expr *pRes;
  Table *pTab;

  if( !ExprHasProperty(pX, EP_xIsSelect) ) return 0;  /* Not a subquery */
  if( ExprHasProperty(pX, EP_VarSelect)  ) return 0;  /* Correlated subq */
  p = pX->x.pSelect;
  if( p->pPrior ) return 0;              /* Not a compound SELECT */
  if( p->selFlags & (SF_Distinct|SF_Aggregate) ){
    testcase( (p->selFlags & (SF_Distinct|SF_Aggregate))==SF_Distinct );
    testcase( (p->selFlags & (SF_Distinct|SF_Aggregate))==SF_Aggregate );
................................................................................
  if( pSrc->nSrc!=1 ) return 0;          /* Single term in FROM clause */
  if( pSrc->a[0].pSelect ) return 0;     /* FROM is not a subquery or view */
  pTab = pSrc->a[0].pTab;
  assert( pTab!=0 );
  assert( pTab->pSelect==0 );            /* FROM clause is not a view */
  if( IsVirtual(pTab) ) return 0;        /* FROM clause not a virtual table */
  pEList = p->pEList;
  if( pEList->nExpr!=1 ) return 0;       /* One column in the result set */


  pRes = pEList->a[0].pExpr;
  if( pRes->op!=TK_COLUMN ) return 0;    /* Result is a column */
  assert( pRes->iTable==pSrc->a[0].iCursor );  /* Not a correlated subquery */

  return p;
}
#endif /* SQLITE_OMIT_SUBQUERY */

/*
** Code an OP_Once instruction and allocate space for its flag. Return the 
** address of the new instruction.
*/
SQLITE_PRIVATE int sqlite3CodeOnce(Parse *pParse){
  Vdbe *v = sqlite3GetVdbe(pParse);      /* Virtual machine being coded */
  return sqlite3VdbeAddOp1(v, OP_Once, pParse->nOnce++);
}


/*
** Generate code that checks the left-most column of index table iCur to see if
** it contains any NULL entries.  Cause the register at regHasNull to be set
** to a non-NULL value if iCur contains no NULLs.  Cause register regHasNull
** to be set to NULL if iCur contains one or more NULL values.
*/
static void sqlite3SetHasNullFlag(Vdbe *v, int iCur, int regHasNull){
................................................................................
  sqlite3VdbeAddOp2(v, OP_Integer, 0, regHasNull);
  addr1 = sqlite3VdbeAddOp1(v, OP_Rewind, iCur); VdbeCoverage(v);
  sqlite3VdbeAddOp3(v, OP_Column, iCur, 0, regHasNull);
  sqlite3VdbeChangeP5(v, OPFLAG_TYPEOFARG);
  VdbeComment((v, "first_entry_in(%d)", iCur));
  sqlite3VdbeJumpHere(v, addr1);
}



#ifndef SQLITE_OMIT_SUBQUERY
/*
** The argument is an IN operator with a list (not a subquery) on the 
** right-hand side.  Return TRUE if that list is constant.
*/
................................................................................
**                         populated epheremal table.
**   IN_INDEX_NOOP       - No cursor was allocated.  The IN operator must be
**                         implemented as a sequence of comparisons.
**
** An existing b-tree might be used if the RHS expression pX is a simple
** subquery such as:
**
**     SELECT <column> FROM <table>
**
** If the RHS of the IN operator is a list or a more complex subquery, then
** an ephemeral table might need to be generated from the RHS and then
** pX->iTable made to point to the ephemeral table instead of an
** existing table.
**
** The inFlags parameter must contain exactly one of the bits
................................................................................
** IN_INDEX_MEMBERSHIP, then the generated table will be used for a
** fast membership test.  When the IN_INDEX_LOOP bit is set, the
** IN index will be used to loop over all values of the RHS of the
** IN operator.
**
** When IN_INDEX_LOOP is used (and the b-tree will be used to iterate
** through the set members) then the b-tree must not contain duplicates.
** An epheremal table must be used unless the selected <column> is guaranteed
** to be unique - either because it is an INTEGER PRIMARY KEY or it
** has a UNIQUE constraint or UNIQUE index.
**
** When IN_INDEX_MEMBERSHIP is used (and the b-tree will be used 
** for fast set membership tests) then an epheremal table must 
** be used unless <column> is an INTEGER PRIMARY KEY or an index can 
** be found with <column> as its left-most column.
**
** If the IN_INDEX_NOOP_OK and IN_INDEX_MEMBERSHIP are both set and
** if the RHS of the IN operator is a list (not a subquery) then this
** routine might decide that creating an ephemeral b-tree for membership
** testing is too expensive and return IN_INDEX_NOOP.  In that case, the
** calling routine should implement the IN operator using a sequence
** of Eq or Ne comparison operations.
................................................................................
** to *prRhsHasNull. If there is no chance that the (...) contains a
** NULL value, then *prRhsHasNull is left unchanged.
**
** If a register is allocated and its location stored in *prRhsHasNull, then
** the value in that register will be NULL if the b-tree contains one or more
** NULL values, and it will be some non-NULL value if the b-tree contains no
** NULL values.











*/
#ifndef SQLITE_OMIT_SUBQUERY
SQLITE_PRIVATE int sqlite3FindInIndex(Parse *pParse, Expr *pX, u32 inFlags, int *prRhsHasNull){






  Select *p;                            /* SELECT to the right of IN operator */
  int eType = 0;                        /* Type of RHS table. IN_INDEX_* */
  int iTab = pParse->nTab++;            /* Cursor of the RHS table */
  int mustBeUnique;                     /* True if RHS must be unique */
  Vdbe *v = sqlite3GetVdbe(pParse);     /* Virtual machine being coded */

  assert( pX->op==TK_IN );
  mustBeUnique = (inFlags & IN_INDEX_LOOP)!=0;

















  /* Check to see if an existing table or index can be used to
  ** satisfy the query.  This is preferable to generating a new 
  ** ephemeral table.
  */
  if( pParse->nErr==0 && (p = isCandidateForInOpt(pX))!=0 ){
    sqlite3 *db = pParse->db;              /* Database connection */
    Table *pTab;                           /* Table <table>. */
    Expr *pExpr;                           /* Expression <column> */
    i16 iCol;                              /* Index of column <column> */
    i16 iDb;                               /* Database idx for pTab */



    assert( p->pEList!=0 );             /* Because of isCandidateForInOpt(p) */
    assert( p->pEList->a[0].pExpr!=0 ); /* Because of isCandidateForInOpt(p) */
    assert( p->pSrc!=0 );               /* Because of isCandidateForInOpt(p) */
    pTab = p->pSrc->a[0].pTab;
    pExpr = p->pEList->a[0].pExpr;
    iCol = (i16)pExpr->iColumn;
   
    /* Code an OP_Transaction and OP_TableLock for <table>. */
    iDb = sqlite3SchemaToIndex(db, pTab->pSchema);
    sqlite3CodeVerifySchema(pParse, iDb);
    sqlite3TableLock(pParse, iDb, pTab->tnum, 0, pTab->zName);

    /* This function is only called from two places. In both cases the vdbe
    ** has already been allocated. So assume sqlite3GetVdbe() is always
    ** successful here.
    */
    assert(v);
    if( iCol<0 ){
      int iAddr = sqlite3CodeOnce(pParse);
      VdbeCoverage(v);

      sqlite3OpenTable(pParse, iTab, iDb, pTab, OP_OpenRead);
      eType = IN_INDEX_ROWID;

      sqlite3VdbeJumpHere(v, iAddr);
    }else{
      Index *pIdx;                         /* Iterator variable */



      /* The collation sequence used by the comparison. If an index is to
      ** be used in place of a temp-table, it must be ordered according
      ** to this collation sequence.  */
      CollSeq *pReq = sqlite3BinaryCompareCollSeq(pParse, pX->pLeft, pExpr);

      /* Check that the affinity that will be used to perform the 
      ** comparison is the same as the affinity of the column. If
      ** it is not, it is not possible to use any index.
      */



















      int affinity_ok = sqlite3IndexAffinityOk(pX, pTab->aCol[iCol].affinity);





      for(pIdx=pTab->pIndex; pIdx && eType==0 && affinity_ok; pIdx=pIdx->pNext){
        if( (pIdx->aiColumn[0]==iCol)
         && sqlite3FindCollSeq(db, ENC(db), pIdx->azColl[0], 0)==pReq
         && (!mustBeUnique || (pIdx->nKeyCol==1 && IsUniqueIndex(pIdx)))











        ){
          int iAddr = sqlite3CodeOnce(pParse); VdbeCoverage(v);




































          sqlite3VdbeAddOp3(v, OP_OpenRead, iTab, pIdx->tnum, iDb);
          sqlite3VdbeSetP4KeyInfo(pParse, pIdx);
          VdbeComment((v, "%s", pIdx->zName));
          assert( IN_INDEX_INDEX_DESC == IN_INDEX_INDEX_ASC+1 );
          eType = IN_INDEX_INDEX_ASC + pIdx->aSortOrder[0];

          if( prRhsHasNull && !pTab->aCol[iCol].notNull ){
#ifdef SQLITE_ENABLE_COLUMN_USED_MASK
            const i64 sOne = 1;

            sqlite3VdbeAddOp4Dup8(v, OP_ColumnsUsed, 
                iTab, 0, 0, (u8*)&sOne, P4_INT64);
#endif
            *prRhsHasNull = ++pParse->nMem;

            sqlite3SetHasNullFlag(v, iTab, *prRhsHasNull);
          }

          sqlite3VdbeJumpHere(v, iAddr);
        }
      }
    }
  }





  /* If no preexisting index is available for the IN clause
  ** and IN_INDEX_NOOP is an allowed reply
  ** and the RHS of the IN operator is a list, not a subquery
  ** and the RHS is not constant or has two or fewer terms,
  ** then it is not worth creating an ephemeral table to evaluate
  ** the IN operator so return IN_INDEX_NOOP.
................................................................................
  if( eType==0
   && (inFlags & IN_INDEX_NOOP_OK)
   && !ExprHasProperty(pX, EP_xIsSelect)
   && (!sqlite3InRhsIsConstant(pX) || pX->x.pList->nExpr<=2)
  ){
    eType = IN_INDEX_NOOP;
  }
     

  if( eType==0 ){
    /* Could not find an existing table or index to use as the RHS b-tree.
    ** We will have to generate an ephemeral table to do the job.
    */
    u32 savedNQueryLoop = pParse->nQueryLoop;
    int rMayHaveNull = 0;
................................................................................
      *prRhsHasNull = rMayHaveNull = ++pParse->nMem;
    }
    sqlite3CodeSubselect(pParse, pX, rMayHaveNull, eType==IN_INDEX_ROWID);
    pParse->nQueryLoop = savedNQueryLoop;
  }else{
    pX->iTable = iTab;
  }






  return eType;
}
#endif
















































/*
** Generate code for scalar subqueries used as a subquery expression, EXISTS,
** or IN operators.  Examples:
**
**     (SELECT a FROM b)          -- subquery
**     EXISTS (SELECT a FROM b)   -- EXISTS subquery
................................................................................
** If rMayHaveNull is non-zero, that means that the operation is an IN
** (not a SELECT or EXISTS) and that the RHS might contains NULLs.
** All this routine does is initialize the register given by rMayHaveNull
** to NULL.  Calling routines will take care of changing this register
** value to non-NULL if the RHS is NULL-free.
**
** For a SELECT or EXISTS operator, return the register that holds the


** result.  For IN operators or if an error occurs, the return value is 0.
*/
#ifndef SQLITE_OMIT_SUBQUERY
SQLITE_PRIVATE int sqlite3CodeSubselect(
  Parse *pParse,          /* Parsing context */
  Expr *pExpr,            /* The IN, SELECT, or EXISTS operator */
  int rHasNullFlag,       /* Register that records whether NULLs exist in RHS */
  int isRowid             /* If true, LHS of IN operator is a rowid */
................................................................................
){
  int jmpIfDynamic = -1;                      /* One-time test address */
  int rReg = 0;                           /* Register storing resulting */
  Vdbe *v = sqlite3GetVdbe(pParse);
  if( NEVER(v==0) ) return 0;
  sqlite3ExprCachePush(pParse);

  /* This code must be run in its entirety every time it is encountered
  ** if any of the following is true:
  **
  **    *  The right-hand side is a correlated subquery
  **    *  The right-hand side is an expression list containing variables
  **    *  We are inside a trigger
  **
  ** If all of the above are false, then we can run this code just once
  ** save the results, and reuse the same result on subsequent invocations.
  */
  if( !ExprHasProperty(pExpr, EP_VarSelect) ){
    jmpIfDynamic = sqlite3CodeOnce(pParse); VdbeCoverage(v);
  }

#ifndef SQLITE_OMIT_EXPLAIN
  if( pParse->explain==2 ){
    char *zMsg = sqlite3MPrintf(pParse->db, "EXECUTE %s%s SUBQUERY %d",
        jmpIfDynamic>=0?"":"CORRELATED ",
        pExpr->op==TK_IN?"LIST":"SCALAR",
................................................................................
    );
    sqlite3VdbeAddOp4(v, OP_Explain, pParse->iSelectId, 0, 0, zMsg, P4_DYNAMIC);
  }
#endif

  switch( pExpr->op ){
    case TK_IN: {
      char affinity;              /* Affinity of the LHS of the IN */
      int addr;                   /* Address of OP_OpenEphemeral instruction */
      Expr *pLeft = pExpr->pLeft; /* the LHS of the IN operator */
      KeyInfo *pKeyInfo = 0;      /* Key information */


      affinity = sqlite3ExprAffinity(pLeft);


      /* Whether this is an 'x IN(SELECT...)' or an 'x IN(<exprlist>)'
      ** expression it is handled the same way.  An ephemeral table is 
      ** filled with single-field index keys representing the results
      ** from the SELECT or the <exprlist>.
      **
      ** If the 'x' expression is a column value, or the SELECT...
      ** statement returns a column value, then the affinity of that
      ** column is used to build the index keys. If both 'x' and the
      ** SELECT... statement are columns, then numeric affinity is used
      ** if either column has NUMERIC or INTEGER affinity. If neither
      ** 'x' nor the SELECT... statement are columns, then numeric affinity
      ** is used.
      */
      pExpr->iTable = pParse->nTab++;
      addr = sqlite3VdbeAddOp2(v, OP_OpenEphemeral, pExpr->iTable, !isRowid);

      pKeyInfo = isRowid ? 0 : sqlite3KeyInfoAlloc(pParse->db, 1, 1);

      if( ExprHasProperty(pExpr, EP_xIsSelect) ){
        /* Case 1:     expr IN (SELECT ...)
        **
        ** Generate code to write the results of the select into the temporary
        ** table allocated and opened above.
        */
        Select *pSelect = pExpr->x.pSelect;
        SelectDest dest;
        ExprList *pEList;

        assert( !isRowid );





        sqlite3SelectDestInit(&dest, SRT_Set, pExpr->iTable);
        dest.affSdst = (u8)affinity;

        assert( (pExpr->iTable&0x0000FFFF)==pExpr->iTable );
        pSelect->iLimit = 0;
        testcase( pSelect->selFlags & SF_Distinct );
        testcase( pKeyInfo==0 ); /* Caused by OOM in sqlite3KeyInfoAlloc() */
        if( sqlite3Select(pParse, pSelect, &dest) ){

          sqlite3KeyInfoUnref(pKeyInfo);
          return 0;
        }
        pEList = pSelect->pEList;

        assert( pKeyInfo!=0 ); /* OOM will cause exit after sqlite3Select() */
        assert( pEList!=0 );
        assert( pEList->nExpr>0 );
        assert( sqlite3KeyInfoIsWriteable(pKeyInfo) );


        pKeyInfo->aColl[0] = sqlite3BinaryCompareCollSeq(pParse, pExpr->pLeft,
                                                         pEList->a[0].pExpr);



      }else if( ALWAYS(pExpr->x.pList!=0) ){
        /* Case 2:     expr IN (exprlist)
        **
        ** For each expression, build an index key from the evaluation and
        ** store it in the temporary table. If <expr> is a column, then use
        ** that columns affinity when building index keys. If <expr> is not
        ** a column, use numeric affinity.
        */

        int i;
        ExprList *pList = pExpr->x.pList;
        struct ExprList_item *pItem;
        int r1, r2, r3;


        if( !affinity ){
          affinity = SQLITE_AFF_BLOB;
        }
        if( pKeyInfo ){
          assert( sqlite3KeyInfoIsWriteable(pKeyInfo) );
          pKeyInfo->aColl[0] = sqlite3ExprCollSeq(pParse, pExpr->pLeft);
        }
................................................................................
      }
      break;
    }

    case TK_EXISTS:
    case TK_SELECT:
    default: {
      /* If this has to be a scalar SELECT.  Generate code to put the
      ** value of this select in a memory cell and record the number
      ** of the memory cell in iColumn.  If this is an EXISTS, write




      ** an integer 0 (not exists) or 1 (exists) into a memory cell
      ** and record that memory cell in iColumn.




      */
      Select *pSel;                         /* SELECT statement to encode */
      SelectDest dest;                      /* How to deal with SELECt result */


      testcase( pExpr->op==TK_EXISTS );
      testcase( pExpr->op==TK_SELECT );
      assert( pExpr->op==TK_EXISTS || pExpr->op==TK_SELECT );

      assert( ExprHasProperty(pExpr, EP_xIsSelect) );

      pSel = pExpr->x.pSelect;

      sqlite3SelectDestInit(&dest, 0, ++pParse->nMem);

      if( pExpr->op==TK_SELECT ){
        dest.eDest = SRT_Mem;
        dest.iSdst = dest.iSDParm;

        sqlite3VdbeAddOp2(v, OP_Null, 0, dest.iSDParm);
        VdbeComment((v, "Init subquery result"));
      }else{
        dest.eDest = SRT_Exists;
        sqlite3VdbeAddOp2(v, OP_Integer, 0, dest.iSDParm);
        VdbeComment((v, "Init EXISTS result"));
      }
      sqlite3ExprDelete(pParse->db, pSel->pLimit);
      pSel->pLimit = sqlite3PExpr(pParse, TK_INTEGER, 0, 0,
                                  &sqlite3IntTokens[1]);
      pSel->iLimit = 0;
      pSel->selFlags &= ~SF_MultiValue;
      if( sqlite3Select(pParse, pSel, &dest) ){
        return 0;
      }
      rReg = dest.iSDParm;
      ExprSetVVAProperty(pExpr, EP_NoReduce);
................................................................................
    sqlite3VdbeJumpHere(v, jmpIfDynamic);
  }
  sqlite3ExprCachePop(pParse);

  return rReg;
}
#endif /* SQLITE_OMIT_SUBQUERY */



























#ifndef SQLITE_OMIT_SUBQUERY
/*
** Generate code for an IN expression.
**
**      x IN (SELECT ...)
**      x IN (value, value, ...)
**
** The left-hand side (LHS) is a scalar expression.  The right-hand side (RHS)
** is an array of zero or more values.  The expression is true if the LHS is
** contained within the RHS.  The value of the expression is unknown (NULL)
** if the LHS is NULL or if the LHS is not contained within the RHS and the
** RHS contains one or more NULL values.





**
** This routine generates code that jumps to destIfFalse if the LHS is not 
** contained within the RHS.  If due to NULLs we cannot determine if the LHS
** is contained in the RHS then jump to destIfNull.  If the LHS is contained
** within the RHS then fall through.



*/
static void sqlite3ExprCodeIN(
  Parse *pParse,        /* Parsing and code generating context */
  Expr *pExpr,          /* The IN expression */
  int destIfFalse,      /* Jump here if LHS is not contained in the RHS */
  int destIfNull        /* Jump here if the results are unknown due to NULLs */
){
  int rRhsHasNull = 0;  /* Register that is true if RHS contains NULL values */
  char affinity;        /* Comparison affinity to use */
  int eType;            /* Type of the RHS */

  int r1;               /* Temporary use register */
  Vdbe *v;              /* Statement under construction */












  /* Compute the RHS.   After this step, the table with cursor











  ** pExpr->iTable will contains the values that make up the RHS.
  */

  v = pParse->pVdbe;
  assert( v!=0 );       /* OOM detected prior to this routine */
  VdbeNoopComment((v, "begin IN expr"));
  eType = sqlite3FindInIndex(pParse, pExpr,
                             IN_INDEX_MEMBERSHIP | IN_INDEX_NOOP_OK,
                             destIfFalse==destIfNull ? 0 : &rRhsHasNull);

  /* Figure out the affinity to use to create a key from the results
  ** of the expression. affinityStr stores a static string suitable for
  ** P4 of OP_MakeRecord.
  */


  affinity = comparisonAffinity(pExpr);








  /* Code the LHS, the <expr> from "<expr> IN (...)".







  */
  sqlite3ExprCachePush(pParse);







  r1 = sqlite3GetTempReg(pParse);
  sqlite3ExprCode(pParse, pExpr->pLeft, r1);





  /* If sqlite3FindInIndex() did not find or create an index that is
  ** suitable for evaluating the IN operator, then evaluate using a
  ** sequence of comparisons.


  */
  if( eType==IN_INDEX_NOOP ){
    ExprList *pList = pExpr->x.pList;
    CollSeq *pColl = sqlite3ExprCollSeq(pParse, pExpr->pLeft);
    int labelOk = sqlite3VdbeMakeLabel(v);
    int r2, regToFree;
    int regCkNull = 0;
    int ii;
    assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
    if( destIfNull!=destIfFalse ){
      regCkNull = sqlite3GetTempReg(pParse);
      sqlite3VdbeAddOp3(v, OP_BitAnd, r1, r1, regCkNull);
    }
    for(ii=0; ii<pList->nExpr; ii++){
      r2 = sqlite3ExprCodeTemp(pParse, pList->a[ii].pExpr, &regToFree);
      if( regCkNull && sqlite3ExprCanBeNull(pList->a[ii].pExpr) ){
        sqlite3VdbeAddOp3(v, OP_BitAnd, regCkNull, r2, regCkNull);
      }
      if( ii<pList->nExpr-1 || destIfNull!=destIfFalse ){
        sqlite3VdbeAddOp4(v, OP_Eq, r1, labelOk, r2,
                          (void*)pColl, P4_COLLSEQ);
        VdbeCoverageIf(v, ii<pList->nExpr-1);
        VdbeCoverageIf(v, ii==pList->nExpr-1);
        sqlite3VdbeChangeP5(v, affinity);
      }else{
        assert( destIfNull==destIfFalse );
        sqlite3VdbeAddOp4(v, OP_Ne, r1, destIfFalse, r2,
                          (void*)pColl, P4_COLLSEQ); VdbeCoverage(v);
        sqlite3VdbeChangeP5(v, affinity | SQLITE_JUMPIFNULL);
      }
      sqlite3ReleaseTempReg(pParse, regToFree);
    }
    if( regCkNull ){
      sqlite3VdbeAddOp2(v, OP_IsNull, regCkNull, destIfNull); VdbeCoverage(v);
      sqlite3VdbeGoto(v, destIfFalse);
    }
    sqlite3VdbeResolveLabel(v, labelOk);
    sqlite3ReleaseTempReg(pParse, regCkNull);
  }else{
  
    /* If the LHS is NULL, then the result is either false or NULL depending

    ** on whether the RHS is empty or not, respectively.


    */
    if( sqlite3ExprCanBeNull(pExpr->pLeft) ){
      if( destIfNull==destIfFalse ){
        /* Shortcut for the common case where the false and NULL outcomes are
        ** the same. */
        sqlite3VdbeAddOp2(v, OP_IsNull, r1, destIfNull); VdbeCoverage(v);
      }else{
        int addr1 = sqlite3VdbeAddOp1(v, OP_NotNull, r1); VdbeCoverage(v);





        sqlite3VdbeAddOp2(v, OP_Rewind, pExpr->iTable, destIfFalse);
        VdbeCoverage(v);
        sqlite3VdbeGoto(v, destIfNull);
        sqlite3VdbeJumpHere(v, addr1);
      }
    }
  




    if( eType==IN_INDEX_ROWID ){
      /* In this case, the RHS is the ROWID of table b-tree
      */


      sqlite3VdbeAddOp3(v, OP_SeekRowid, pExpr->iTable, destIfFalse, r1);
      VdbeCoverage(v);

    }else{
      /* In this case, the RHS is an index b-tree.
      */
      sqlite3VdbeAddOp4(v, OP_Affinity, r1, 1, 0, &affinity, 1);





  
      /* If the set membership test fails, then the result of the 
      ** "x IN (...)" expression must be either 0 or NULL. If the set
      ** contains no NULL values, then the result is 0. If the set 
      ** contains one or more NULL values, then the result of the
      ** expression is also NULL.







      */
      assert( destIfFalse!=destIfNull || rRhsHasNull==0 );
      if( rRhsHasNull==0 ){
        /* This branch runs if it is known at compile time that the RHS
        ** cannot contain NULL values. This happens as the result
        ** of a "NOT NULL" constraint in the database schema.












        **
        ** Also run this branch if NULL is equivalent to FALSE
        ** for this particular IN operator.


        */

        sqlite3VdbeAddOp4Int(v, OP_NotFound, pExpr->iTable, destIfFalse, r1, 1);
        VdbeCoverage(v);


      }else{
        /* In this branch, the RHS of the IN might contain a NULL and
        ** the presence of a NULL on the RHS makes a difference in the
        ** outcome.
        */
        int addr1;



  
        /* First check to see if the LHS is contained in the RHS.  If so,
        ** then the answer is TRUE the presence of NULLs in the RHS does
        ** not matter.  If the LHS is not contained in the RHS, then the
        ** answer is NULL if the RHS contains NULLs and the answer is
        ** FALSE if the RHS is NULL-free.
        */
        addr1 = sqlite3VdbeAddOp4Int(v, OP_Found, pExpr->iTable, 0, r1, 1);









        VdbeCoverage(v);


        sqlite3VdbeAddOp2(v, OP_IsNull, rRhsHasNull, destIfNull);



        VdbeCoverage(v);
        sqlite3VdbeGoto(v, destIfFalse);
        sqlite3VdbeJumpHere(v, addr1);
      }



    }
  }




  sqlite3ReleaseTempReg(pParse, r1);
  sqlite3ExprCachePop(pParse);
  VdbeComment((v, "end IN expr"));



}
#endif /* SQLITE_OMIT_SUBQUERY */

#ifndef SQLITE_OMIT_FLOATING_POINT
/*
** Generate an instruction that will put the floating point
** value described by z[0..n-1] into register iMem.
................................................................................
        codeReal(v, z, negFlag, iMem);
      }
#endif
    }
  }
}

#if defined(SQLITE_DEBUG)
/*
** Verify the consistency of the column cache

*/
static int cacheIsValid(Parse *pParse){
  int i, n;
  for(i=n=0; i<SQLITE_N_COLCACHE; i++){
    if( pParse->aColCache[i].iReg>0 ) n++;
  }
  return n==pParse->nColCache;
}
#endif

/*
** Clear a cache entry.
*/
static void cacheEntryClear(Parse *pParse, struct yColCache *p){
  if( p->tempReg ){
    if( pParse->nTempReg<ArraySize(pParse->aTempReg) ){
      pParse->aTempReg[pParse->nTempReg++] = p->iReg;
    }
    p->tempReg = 0;
  }
  p->iReg = 0;
  pParse->nColCache--;
  assert( pParse->db->mallocFailed || cacheIsValid(pParse) );



}


/*
** Record in the column cache that a particular column from a
** particular table is stored in a particular register.
*/
................................................................................

  /* First replace any existing entry.
  **
  ** Actually, the way the column cache is currently used, we are guaranteed
  ** that the object will never already be in cache.  Verify this guarantee.
  */
#ifndef NDEBUG
  for(i=0, p=pParse->aColCache; i<SQLITE_N_COLCACHE; i++, p++){
    assert( p->iReg==0 || p->iTable!=iTab || p->iColumn!=iCol );
  }
#endif

  /* Find an empty slot and replace it */
  for(i=0, p=pParse->aColCache; i<SQLITE_N_COLCACHE; i++, p++){
    if( p->iReg==0 ){
      p->iLevel = pParse->iCacheLevel;
      p->iTable = iTab;
      p->iColumn = iCol;
      p->iReg = iReg;
      p->tempReg = 0;
      p->lru = pParse->iCacheCnt++;
      pParse->nColCache++;
      assert( pParse->db->mallocFailed || cacheIsValid(pParse) );
      return;
    }
  }

  /* Replace the last recently used */
  minLru = 0x7fffffff;
  idxLru = -1;
  for(i=0, p=pParse->aColCache; i<SQLITE_N_COLCACHE; i++, p++){
    if( p->lru<minLru ){
      idxLru = i;
      minLru = p->lru;
    }
  }
  if( ALWAYS(idxLru>=0) ){
    p = &pParse->aColCache[idxLru];





    p->iLevel = pParse->iCacheLevel;
    p->iTable = iTab;
    p->iColumn = iCol;
    p->iReg = iReg;
    p->tempReg = 0;
    p->lru = pParse->iCacheCnt++;
    assert( cacheIsValid(pParse) );
    return;
  }
}

/*
** Indicate that registers between iReg..iReg+nReg-1 are being overwritten.
** Purge the range of registers from the column cache.
*/
SQLITE_PRIVATE void sqlite3ExprCacheRemove(Parse *pParse, int iReg, int nReg){
  struct yColCache *p;
  if( iReg<=0 || pParse->nColCache==0 ) return;
  p = &pParse->aColCache[SQLITE_N_COLCACHE-1];
  while(1){
    if( p->iReg >= iReg && p->iReg < iReg+nReg ) cacheEntryClear(pParse, p);

    if( p==pParse->aColCache ) break;
    p--;


  }
}

/*
** Remember the current column cache context.  Any new entries added
** added to the column cache after this call are removed when the
** corresponding pop occurs.
................................................................................

/*
** Remove from the column cache any entries that were added since the
** the previous sqlite3ExprCachePush operation.  In other words, restore
** the cache to the state it was in prior the most recent Push.
*/
SQLITE_PRIVATE void sqlite3ExprCachePop(Parse *pParse){
  int i;
  struct yColCache *p;
  assert( pParse->iCacheLevel>=1 );
  pParse->iCacheLevel--;
#ifdef SQLITE_DEBUG
  if( pParse->db->flags & SQLITE_VdbeAddopTrace ){
    printf("POP  to %d\n", pParse->iCacheLevel);
  }
#endif
  for(i=0, p=pParse->aColCache; i<SQLITE_N_COLCACHE; i++, p++){
    if( p->iReg && p->iLevel>pParse->iCacheLevel ){
      cacheEntryClear(pParse, p);


    }
  }
}

/*
** When a cached column is reused, make sure that its register is
** no longer available as a temp register.  ticket #3879:  that same
** register might be in the cache in multiple places, so be sure to
** get them all.
*/
static void sqlite3ExprCachePinRegister(Parse *pParse, int iReg){
  int i;
  struct yColCache *p;
  for(i=0, p=pParse->aColCache; i<SQLITE_N_COLCACHE; i++, p++){
    if( p->iReg==iReg ){
      p->tempReg = 0;
    }
  }
}

/* Generate code that will load into register regOut a value that is
................................................................................
  int iReg,        /* Store results here */
  u8 p5            /* P5 value for OP_Column + FLAGS */
){
  Vdbe *v = pParse->pVdbe;
  int i;
  struct yColCache *p;

  for(i=0, p=pParse->aColCache; i<SQLITE_N_COLCACHE; i++, p++){
    if( p->iReg>0 && p->iTable==iTable && p->iColumn==iColumn ){
      p->lru = pParse->iCacheCnt++;
      sqlite3ExprCachePinRegister(pParse, p->iReg);
      return p->iReg;
    }
  }  
  assert( v!=0 );
  sqlite3ExprCodeGetColumnOfTable(v, pTab, iTable, iColumn, iReg);
................................................................................


/*
** Clear all column cache entries.
*/
SQLITE_PRIVATE void sqlite3ExprCacheClear(Parse *pParse){
  int i;
  struct yColCache *p;

#if SQLITE_DEBUG
  if( pParse->db->flags & SQLITE_VdbeAddopTrace ){
    printf("CLEAR\n");
  }
#endif
  for(i=0, p=pParse->aColCache; i<SQLITE_N_COLCACHE; i++, p++){
    if( p->iReg ){
      cacheEntryClear(pParse, p);


    }
  }

}

/*
** Record the fact that an affinity change has occurred on iCount
** registers starting with iStart.
*/
SQLITE_PRIVATE void sqlite3ExprCacheAffinityChange(Parse *pParse, int iStart, int iCount){
................................................................................
**
** This routine is used within assert() and testcase() macros only
** and does not appear in a normal build.
*/
static int usedAsColumnCache(Parse *pParse, int iFrom, int iTo){
  int i;
  struct yColCache *p;
  for(i=0, p=pParse->aColCache; i<SQLITE_N_COLCACHE; i++, p++){
    int r = p->iReg;
    if( r>=iFrom && r<=iTo ) return 1;    /*NO_TEST*/
  }
  return 0;
}
#endif /* SQLITE_DEBUG || SQLITE_COVERAGE_TEST */


/*
** Convert an expression node to a TK_REGISTER


*/
static void exprToRegister(Expr *p, int iReg){
  p->op2 = p->op;
  p->op = TK_REGISTER;
  p->iTable = iReg;
  ExprClearProperty(p, EP_Skip);
}

































/*
** Generate code into the current Vdbe to evaluate the given
** expression.  Attempt to store the results in register "target".
** Return the register where results are stored.
**
** With this routine, there is no guarantee that results will
................................................................................
*/
SQLITE_PRIVATE int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
  Vdbe *v = pParse->pVdbe;  /* The VM under construction */
  int op;                   /* The opcode being coded */
  int inReg = target;       /* Results stored in register inReg */
  int regFree1 = 0;         /* If non-zero free this temporary register */
  int regFree2 = 0;         /* If non-zero free this temporary register */
  int r1, r2, r3, r4;       /* Various register numbers */
  sqlite3 *db = pParse->db; /* The database connection */
  Expr tempX;               /* Temporary expression node */

  assert( target>0 && target<=pParse->nMem );
  if( v==0 ){
    assert( pParse->db->mallocFailed );
    return 0;
  }

................................................................................
  }
  switch( op ){
    case TK_AGG_COLUMN: {
      AggInfo *pAggInfo = pExpr->pAggInfo;
      struct AggInfo_col *pCol = &pAggInfo->aCol[pExpr->iAgg];
      if( !pAggInfo->directMode ){
        assert( pCol->iMem>0 );
        inReg = pCol->iMem;
        break;
      }else if( pAggInfo->useSortingIdx ){
        sqlite3VdbeAddOp3(v, OP_Column, pAggInfo->sortingIdxPTab,
                              pCol->iSorterColumn, target);
        break;
      }
      /* Otherwise, fall thru into the TK_COLUMN case */
    }
    case TK_COLUMN: {
      int iTab = pExpr->iTable;
      if( iTab<0 ){
        if( pParse->ckBase>0 ){
          /* Generating CHECK constraints or inserting into partial index */
          inReg = pExpr->iColumn + pParse->ckBase;
          break;
        }else{
          /* Coding an expression that is part of an index where column names
          ** in the index refer to the table to which the index belongs */
          iTab = pParse->iSelfTab;
        }
      }
      inReg = sqlite3ExprCodeGetColumn(pParse, pExpr->pTab,
                               pExpr->iColumn, iTab, target,
                               pExpr->op2);
      break;
    }
    case TK_INTEGER: {
      codeInteger(pParse, pExpr, 0, target);
      break;
    }
#ifndef SQLITE_OMIT_FLOATING_POINT
    case TK_FLOAT: {
      assert( !ExprHasProperty(pExpr, EP_IntValue) );
      codeReal(v, pExpr->u.zToken, 0, target);
      break;
    }
#endif
    case TK_STRING: {
      assert( !ExprHasProperty(pExpr, EP_IntValue) );
      sqlite3VdbeLoadString(v, target, pExpr->u.zToken);
      break;
    }
    case TK_NULL: {
      sqlite3VdbeAddOp2(v, OP_Null, 0, target);
      break;
    }
#ifndef SQLITE_OMIT_BLOB_LITERAL
    case TK_BLOB: {
      int n;
      const char *z;
      char *zBlob;
      assert( !ExprHasProperty(pExpr, EP_IntValue) );
................................................................................
      assert( pExpr->u.zToken[0]=='x' || pExpr->u.zToken[0]=='X' );
      assert( pExpr->u.zToken[1]=='\'' );
      z = &pExpr->u.zToken[2];
      n = sqlite3Strlen30(z) - 1;
      assert( z[n]=='\'' );
      zBlob = sqlite3HexToBlob(sqlite3VdbeDb(v), z, n);
      sqlite3VdbeAddOp4(v, OP_Blob, n/2, target, 0, zBlob, P4_DYNAMIC);
      break;
    }
#endif
    case TK_VARIABLE: {
      assert( !ExprHasProperty(pExpr, EP_IntValue) );
      assert( pExpr->u.zToken!=0 );
      assert( pExpr->u.zToken[0]!=0 );
      sqlite3VdbeAddOp2(v, OP_Variable, pExpr->iColumn, target);
      if( pExpr->u.zToken[1]!=0 ){
        assert( pExpr->u.zToken[0]=='?' 
             || strcmp(pExpr->u.zToken, pParse->azVar[pExpr->iColumn-1])==0 );
        sqlite3VdbeChangeP4(v, -1, pParse->azVar[pExpr->iColumn-1], P4_STATIC);
      }
      break;
    }
    case TK_REGISTER: {
      inReg = pExpr->iTable;
      break;
    }
#ifndef SQLITE_OMIT_CAST
    case TK_CAST: {
      /* Expressions of the form:   CAST(pLeft AS token) */
      inReg = sqlite3ExprCodeTarget(pParse, pExpr->pLeft, target);
      if( inReg!=target ){
        sqlite3VdbeAddOp2(v, OP_SCopy, inReg, target);
        inReg = target;
      }
      sqlite3VdbeAddOp2(v, OP_Cast, target,
                        sqlite3AffinityType(pExpr->u.zToken, 0));
      testcase( usedAsColumnCache(pParse, inReg, inReg) );
      sqlite3ExprCacheAffinityChange(pParse, inReg, 1);
      break;
    }
#endif /* SQLITE_OMIT_CAST */





    case TK_LT:
    case TK_LE:
    case TK_GT:
    case TK_GE:
    case TK_NE:
    case TK_EQ: {




      r1 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
      r2 = sqlite3ExprCodeTemp(pParse, pExpr->pRight, &regFree2);
      codeCompare(pParse, pExpr->pLeft, pExpr->pRight, op,
                  r1, r2, inReg, SQLITE_STOREP2);
      assert(TK_LT==OP_Lt); testcase(op==OP_Lt); VdbeCoverageIf(v,op==OP_Lt);
      assert(TK_LE==OP_Le); testcase(op==OP_Le); VdbeCoverageIf(v,op==OP_Le);
      assert(TK_GT==OP_Gt); testcase(op==OP_Gt); VdbeCoverageIf(v,op==OP_Gt);
      assert(TK_GE==OP_Ge); testcase(op==OP_Ge); VdbeCoverageIf(v,op==OP_Ge);
      assert(TK_EQ==OP_Eq); testcase(op==OP_Eq); VdbeCoverageIf(v,op==OP_Eq);
      assert(TK_NE==OP_Ne); testcase(op==OP_Ne); VdbeCoverageIf(v,op==OP_Ne);
      testcase( regFree1==0 );
      testcase( regFree2==0 );
      break;
    }
    case TK_IS:
    case TK_ISNOT: {
      testcase( op==TK_IS );
      testcase( op==TK_ISNOT );
      r1 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
      r2 = sqlite3ExprCodeTemp(pParse, pExpr->pRight, &regFree2);
      op = (op==TK_IS) ? TK_EQ : TK_NE;
      codeCompare(pParse, pExpr->pLeft, pExpr->pRight, op,
                  r1, r2, inReg, SQLITE_STOREP2 | SQLITE_NULLEQ);
      VdbeCoverageIf(v, op==TK_EQ);
      VdbeCoverageIf(v, op==TK_NE);
      testcase( regFree1==0 );
      testcase( regFree2==0 );
      break;
    }
    case TK_AND:
    case TK_OR:
    case TK_PLUS:
    case TK_STAR:
    case TK_MINUS:
................................................................................
      break;
    }
    case TK_UMINUS: {
      Expr *pLeft = pExpr->pLeft;
      assert( pLeft );
      if( pLeft->op==TK_INTEGER ){
        codeInteger(pParse, pLeft, 1, target);

#ifndef SQLITE_OMIT_FLOATING_POINT
      }else if( pLeft->op==TK_FLOAT ){
        assert( !ExprHasProperty(pExpr, EP_IntValue) );
        codeReal(v, pLeft->u.zToken, 1, target);

#endif
      }else{
        tempX.op = TK_INTEGER;
        tempX.flags = EP_IntValue|EP_TokenOnly;
        tempX.u.iValue = 0;
        r1 = sqlite3ExprCodeTemp(pParse, &tempX, &regFree1);
        r2 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree2);
        sqlite3VdbeAddOp3(v, OP_Subtract, r2, r1, target);
        testcase( regFree2==0 );
      }
      inReg = target;
      break;
    }
    case TK_BITNOT:
    case TK_NOT: {
      assert( TK_BITNOT==OP_BitNot );   testcase( op==TK_BITNOT );
      assert( TK_NOT==OP_Not );         testcase( op==TK_NOT );
      r1 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
      testcase( regFree1==0 );
      inReg = target;
      sqlite3VdbeAddOp2(v, op, r1, inReg);
      break;
    }
    case TK_ISNULL:
    case TK_NOTNULL: {
      int addr;
      assert( TK_ISNULL==OP_IsNull );   testcase( op==TK_ISNULL );
................................................................................
    }
    case TK_AGG_FUNCTION: {
      AggInfo *pInfo = pExpr->pAggInfo;
      if( pInfo==0 ){
        assert( !ExprHasProperty(pExpr, EP_IntValue) );
        sqlite3ErrorMsg(pParse, "misuse of aggregate: %s()", pExpr->u.zToken);
      }else{
        inReg = pInfo->aFunc[pExpr->iAgg].iMem;
      }
      break;
    }
    case TK_FUNCTION: {
      ExprList *pFarg;       /* List of function arguments */
      int nFarg;             /* Number of function arguments */
      FuncDef *pDef;         /* The function definition object */
      const char *zId;       /* The function name */
      u32 constMask = 0;     /* Mask of function arguments that are constant */
      int i;                 /* Loop counter */

      u8 enc = ENC(db);      /* The text encoding used by this database */
      CollSeq *pColl = 0;    /* A collating sequence */

      assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
      if( ExprHasProperty(pExpr, EP_TokenOnly) ){
        pFarg = 0;
      }else{
        pFarg = pExpr->x.pList;
      }
      nFarg = pFarg ? pFarg->nExpr : 0;
      assert( !ExprHasProperty(pExpr, EP_IntValue) );
      zId = pExpr->u.zToken;
      pDef = sqlite3FindFunction(db, zId, nFarg, enc, 0);





      if( pDef==0 || pDef->xFinalize!=0 ){
        sqlite3ErrorMsg(pParse, "unknown function: %s()", zId);
        break;
      }

      /* Attempt a direct implementation of the built-in COALESCE() and
      ** IFNULL() functions.  This avoids unnecessary evaluation of
................................................................................
      }

      /* The UNLIKELY() function is a no-op.  The result is the value
      ** of the first argument.
      */
      if( pDef->funcFlags & SQLITE_FUNC_UNLIKELY ){
        assert( nFarg>=1 );
        inReg = sqlite3ExprCodeTarget(pParse, pFarg->a[0].pExpr, target);
        break;
      }

      for(i=0; i<nFarg; i++){
        if( i<32 && sqlite3ExprIsConstant(pFarg->a[i].pExpr) ){
          testcase( i==31 );
          constMask |= MASKBIT32(i);
        }
................................................................................
      }
      sqlite3VdbeAddOp4(v, OP_Function0, constMask, r1, target,
                        (char*)pDef, P4_FUNCDEF);
      sqlite3VdbeChangeP5(v, (u8)nFarg);
      if( nFarg && constMask==0 ){
        sqlite3ReleaseTempRange(pParse, r1, nFarg);
      }
      break;
    }
#ifndef SQLITE_OMIT_SUBQUERY
    case TK_EXISTS:
    case TK_SELECT: {

      testcase( op==TK_EXISTS );
      testcase( op==TK_SELECT );



      inReg = sqlite3CodeSubselect(pParse, pExpr, 0, 0);

      break;
    }






    case TK_IN: {
      int destIfFalse = sqlite3VdbeMakeLabel(v);
      int destIfNull = sqlite3VdbeMakeLabel(v);
      sqlite3VdbeAddOp2(v, OP_Null, 0, target);
      sqlite3ExprCodeIN(pParse, pExpr, destIfFalse, destIfNull);
      sqlite3VdbeAddOp2(v, OP_Integer, 1, target);
      sqlite3VdbeResolveLabel(v, destIfFalse);
      sqlite3VdbeAddOp2(v, OP_AddImm, target, 0);
      sqlite3VdbeResolveLabel(v, destIfNull);
      break;
    }
#endif /* SQLITE_OMIT_SUBQUERY */


    /*
    **    x BETWEEN y AND z
    **
................................................................................
    **    x>=y AND x<=z
    **
    ** X is stored in pExpr->pLeft.
    ** Y is stored in pExpr->pList->a[0].pExpr.
    ** Z is stored in pExpr->pList->a[1].pExpr.
    */
    case TK_BETWEEN: {
      Expr *pLeft = pExpr->pLeft;
      struct ExprList_item *pLItem = pExpr->x.pList->a;
      Expr *pRight = pLItem->pExpr;

      r1 = sqlite3ExprCodeTemp(pParse, pLeft, &regFree1);
      r2 = sqlite3ExprCodeTemp(pParse, pRight, &regFree2);
      testcase( regFree1==0 );
      testcase( regFree2==0 );
      r3 = sqlite3GetTempReg(pParse);
      r4 = sqlite3GetTempReg(pParse);
      codeCompare(pParse, pLeft, pRight, OP_Ge,
                  r1, r2, r3, SQLITE_STOREP2);  VdbeCoverage(v);
      pLItem++;
      pRight = pLItem->pExpr;
      sqlite3ReleaseTempReg(pParse, regFree2);
      r2 = sqlite3ExprCodeTemp(pParse, pRight, &regFree2);
      testcase( regFree2==0 );
      codeCompare(pParse, pLeft, pRight, OP_Le, r1, r2, r4, SQLITE_STOREP2);
      VdbeCoverage(v);
      sqlite3VdbeAddOp3(v, OP_And, r3, r4, target);
      sqlite3ReleaseTempReg(pParse, r3);
      sqlite3ReleaseTempReg(pParse, r4);
      break;
    }
    case TK_SPAN:
    case TK_COLLATE: 
    case TK_UPLUS: {
      inReg = sqlite3ExprCodeTarget(pParse, pExpr->pLeft, target);
      break;
    }

    case TK_TRIGGER: {
      /* If the opcode is TK_TRIGGER, then the expression is a reference
      ** to a column in the new.* or old.* pseudo-tables available to
      ** trigger programs. In this case Expr.iTable is set to 1 for the
      ** new.* pseudo-table, or 0 for the old.* pseudo-table. Expr.iColumn
................................................................................
      ){
        sqlite3VdbeAddOp1(v, OP_RealAffinity, target);
      }
#endif
      break;
    }






    /*
    ** Form A:
    **   CASE x WHEN e1 THEN r1 WHEN e2 THEN r2 ... WHEN eN THEN rN ELSE y END
    **
    ** Form B:
    **   CASE WHEN e1 THEN r1 WHEN e2 THEN r2 ... WHEN eN THEN rN ELSE y END
................................................................................
      pEList = pExpr->x.pList;
      aListelem = pEList->a;
      nExpr = pEList->nExpr;
      endLabel = sqlite3VdbeMakeLabel(v);
      if( (pX = pExpr->pLeft)!=0 ){
        tempX = *pX;
        testcase( pX->op==TK_COLUMN );
        exprToRegister(&tempX, sqlite3ExprCodeTemp(pParse, pX, &regFree1));
        testcase( regFree1==0 );

        opCompare.op = TK_EQ;
        opCompare.pLeft = &tempX;
        pTest = &opCompare;
        /* Ticket b351d95f9cd5ef17e9d9dbae18f5ca8611190001:
        ** The value in regFree1 might get SCopy-ed into the file result.
        ** So make sure that the regFree1 register is not reused for other
        ** purposes and possibly overwritten.  */
................................................................................
      if( (nExpr&1)!=0 ){
        sqlite3ExprCachePush(pParse);
        sqlite3ExprCode(pParse, pEList->a[nExpr-1].pExpr, target);
        sqlite3ExprCachePop(pParse);
      }else{
        sqlite3VdbeAddOp2(v, OP_Null, 0, target);
      }
      assert( db->mallocFailed || pParse->nErr>0 
           || pParse->iCacheLevel==iCacheLevel );
      sqlite3VdbeResolveLabel(v, endLabel);
      break;
    }
#ifndef SQLITE_OMIT_TRIGGER
    case TK_RAISE: {
      assert( pExpr->affinity==OE_Rollback 
................................................................................
**
** The above is equivalent to 
**
**    x>=y AND x<=z
**
** Code it as such, taking care to do the common subexpression
** elimination of x.








*/
static void exprCodeBetween(
  Parse *pParse,    /* Parsing and code generating context */
  Expr *pExpr,      /* The BETWEEN expression */
  int dest,         /* Jump here if the jump is taken */
  int jumpIfTrue,   /* Take the jump if the BETWEEN is true */
  int jumpIfNull    /* Take the jump if the BETWEEN is NULL */
){
  Expr exprAnd;     /* The AND operator in  x>=y AND x<=z  */
  Expr compLeft;    /* The  x>=y  term */
  Expr compRight;   /* The  x<=z  term */
  Expr exprX;       /* The  x  subexpression */
  int regFree1 = 0; /* Temporary use register */






  assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
  exprX = *pExpr->pLeft;
  exprAnd.op = TK_AND;
  exprAnd.pLeft = &compLeft;
  exprAnd.pRight = &compRight;
  compLeft.op = TK_GE;
  compLeft.pLeft = &exprX;
  compLeft.pRight = pExpr->x.pList->a[0].pExpr;
  compRight.op = TK_LE;
  compRight.pLeft = &exprX;
  compRight.pRight = pExpr->x.pList->a[1].pExpr;
  exprToRegister(&exprX, sqlite3ExprCodeTemp(pParse, &exprX, &regFree1));
  if( jumpIfTrue ){
    sqlite3ExprIfTrue(pParse, &exprAnd, dest, jumpIfNull);
  }else{

    sqlite3ExprIfFalse(pParse, &exprAnd, dest, jumpIfNull);
  }
  sqlite3ReleaseTempReg(pParse, regFree1);

  /* Ensure adequate test coverage */
  testcase( jumpIfTrue==0 && jumpIfNull==0 && regFree1==0 );
  testcase( jumpIfTrue==0 && jumpIfNull==0 && regFree1!=0 );
  testcase( jumpIfTrue==0 && jumpIfNull!=0 && regFree1==0 );
  testcase( jumpIfTrue==0 && jumpIfNull!=0 && regFree1!=0 );
  testcase( jumpIfTrue!=0 && jumpIfNull==0 && regFree1==0 );
  testcase( jumpIfTrue!=0 && jumpIfNull==0 && regFree1!=0 );
  testcase( jumpIfTrue!=0 && jumpIfNull!=0 && regFree1==0 );
  testcase( jumpIfTrue!=0 && jumpIfNull!=0 && regFree1!=0 );

}

/*
** Generate code for a boolean expression such that a jump is made
** to the label "dest" if the expression is true but execution
** continues straight thru if the expression is false.
**
................................................................................
      /* Fall thru */
    case TK_LT:
    case TK_LE:
    case TK_GT:
    case TK_GE:
    case TK_NE:
    case TK_EQ: {

      testcase( jumpIfNull==0 );
      r1 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
      r2 = sqlite3ExprCodeTemp(pParse, pExpr->pRight, &regFree2);
      codeCompare(pParse, pExpr->pLeft, pExpr->pRight, op,
                  r1, r2, dest, jumpIfNull);
      assert(TK_LT==OP_Lt); testcase(op==OP_Lt); VdbeCoverageIf(v,op==OP_Lt);
      assert(TK_LE==OP_Le); testcase(op==OP_Le); VdbeCoverageIf(v,op==OP_Le);
................................................................................
      VdbeCoverageIf(v, op==TK_ISNULL);
      VdbeCoverageIf(v, op==TK_NOTNULL);
      testcase( regFree1==0 );
      break;
    }
    case TK_BETWEEN: {
      testcase( jumpIfNull==0 );
      exprCodeBetween(pParse, pExpr, dest, 1, jumpIfNull);
      break;
    }
#ifndef SQLITE_OMIT_SUBQUERY
    case TK_IN: {
      int destIfFalse = sqlite3VdbeMakeLabel(v);
      int destIfNull = jumpIfNull ? dest : destIfFalse;
      sqlite3ExprCodeIN(pParse, pExpr, destIfFalse, destIfNull);
      sqlite3VdbeGoto(v, dest);
      sqlite3VdbeResolveLabel(v, destIfFalse);
      break;
    }
#endif
    default: {

      if( exprAlwaysTrue(pExpr) ){
        sqlite3VdbeGoto(v, dest);
      }else if( exprAlwaysFalse(pExpr) ){
        /* No-op */
      }else{
        r1 = sqlite3ExprCodeTemp(pParse, pExpr, &regFree1);
        sqlite3VdbeAddOp3(v, OP_If, r1, dest, jumpIfNull!=0);
................................................................................
      /* Fall thru */
    case TK_LT:
    case TK_LE:
    case TK_GT:
    case TK_GE:
    case TK_NE:
    case TK_EQ: {

      testcase( jumpIfNull==0 );
      r1 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
      r2 = sqlite3ExprCodeTemp(pParse, pExpr->pRight, &regFree2);
      codeCompare(pParse, pExpr->pLeft, pExpr->pRight, op,
                  r1, r2, dest, jumpIfNull);
      assert(TK_LT==OP_Lt); testcase(op==OP_Lt); VdbeCoverageIf(v,op==OP_Lt);
      assert(TK_LE==OP_Le); testcase(op==OP_Le); VdbeCoverageIf(v,op==OP_Le);
................................................................................
      testcase( op==TK_ISNULL );   VdbeCoverageIf(v, op==TK_ISNULL);
      testcase( op==TK_NOTNULL );  VdbeCoverageIf(v, op==TK_NOTNULL);
      testcase( regFree1==0 );
      break;
    }
    case TK_BETWEEN: {
      testcase( jumpIfNull==0 );
      exprCodeBetween(pParse, pExpr, dest, 0, jumpIfNull);
      break;
    }
#ifndef SQLITE_OMIT_SUBQUERY
    case TK_IN: {
      if( jumpIfNull ){
        sqlite3ExprCodeIN(pParse, pExpr, dest, dest);
      }else{
................................................................................
        sqlite3ExprCodeIN(pParse, pExpr, dest, destIfNull);
        sqlite3VdbeResolveLabel(v, destIfNull);
      }
      break;
    }
#endif
    default: {

      if( exprAlwaysFalse(pExpr) ){
        sqlite3VdbeGoto(v, dest);
      }else if( exprAlwaysTrue(pExpr) ){
        /* no-op */
      }else{
        r1 = sqlite3ExprCodeTemp(pParse, pExpr, &regFree1);
        sqlite3VdbeAddOp3(v, OP_IfNot, r1, dest, jumpIfNull!=0);
................................................................................
** the deallocation is deferred until the column cache line that uses
** the register becomes stale.
*/
SQLITE_PRIVATE void sqlite3ReleaseTempReg(Parse *pParse, int iReg){
  if( iReg && pParse->nTempReg<ArraySize(pParse->aTempReg) ){
    int i;
    struct yColCache *p;
    for(i=0, p=pParse->aColCache; i<SQLITE_N_COLCACHE; i++, p++){
      if( p->iReg==iReg ){
        p->tempReg = 1;
        return;
      }
    }
    pParse->aTempReg[pParse->nTempReg++] = iReg;
  }
}

/*
** Allocate or deallocate a block of nReg consecutive registers
*/
SQLITE_PRIVATE int sqlite3GetTempRange(Parse *pParse, int nReg){
  int i, n;

  i = pParse->iRangeReg;
  n = pParse->nRangeReg;
  if( nReg<=n ){
    assert( !usedAsColumnCache(pParse, i, i+n-1) );
    pParse->iRangeReg += nReg;
    pParse->nRangeReg -= nReg;
  }else{
    i = pParse->nMem+1;
    pParse->nMem += nReg;
  }
  return i;
}
SQLITE_PRIVATE void sqlite3ReleaseTempRange(Parse *pParse, int iReg, int nReg){




  sqlite3ExprCacheRemove(pParse, iReg, nReg);
  if( nReg>pParse->nRangeReg ){
    pParse->nRangeReg = nReg;
    pParse->iRangeReg = iReg;
  }
}

................................................................................
  if( NEVER(db->mallocFailed) ) goto exit_rename_table;
  assert( pSrc->nSrc==1 );
  assert( sqlite3BtreeHoldsAllMutexes(pParse->db) );

  pTab = sqlite3LocateTableItem(pParse, 0, &pSrc->a[0]);
  if( !pTab ) goto exit_rename_table;
  iDb = sqlite3SchemaToIndex(pParse->db, pTab->pSchema);
  zDb = db->aDb[iDb].zName;
  db->flags |= SQLITE_PreferBuiltin;

  /* Get a NULL terminated version of the new table name. */
  zName = sqlite3NameFromToken(db, pName);
  if( !zName ) goto exit_rename_table;

  /* Check that a table or index named 'zName' does not already exist
................................................................................
  if( pParse->nErr || db->mallocFailed ) return;
  assert( v!=0 );
  pNew = pParse->pNewTable;
  assert( pNew );

  assert( sqlite3BtreeHoldsAllMutexes(db) );
  iDb = sqlite3SchemaToIndex(db, pNew->pSchema);
  zDb = db->aDb[iDb].zName;
  zTab = &pNew->zName[16];  /* Skip the "sqlite_altertab_" prefix on the name */
  pCol = &pNew->aCol[pNew->nCol-1];
  pDflt = pCol->pDflt;
  pTab = sqlite3FindTable(db, zTab, zDb);
  assert( pTab );

#ifndef SQLITE_OMIT_AUTHORIZATION
................................................................................

  /* Create new statistic tables if they do not exist, or clear them
  ** if they do already exist.
  */
  for(i=0; i<ArraySize(aTable); i++){
    const char *zTab = aTable[i].zName;
    Table *pStat;
    if( (pStat = sqlite3FindTable(db, zTab, pDb->zName))==0 ){
      if( aTable[i].zCols ){
        /* The sqlite_statN table does not exist. Create it. Note that a 
        ** side-effect of the CREATE TABLE statement is to leave the rootpage 
        ** of the new table in register pParse->regRoot. This is important 
        ** because the OpenWrite opcode below will be needing it. */
        sqlite3NestedParse(pParse,
            "CREATE TABLE %Q.%s(%s)", pDb->zName, zTab, aTable[i].zCols
        );
        aRoot[i] = pParse->regRoot;
        aCreateTbl[i] = OPFLAG_P2ISREG;
      }
    }else{
      /* The table already exists. If zWhere is not NULL, delete all entries 
      ** associated with the table zWhere. If zWhere is NULL, delete the
................................................................................
      ** entire contents of the table. */
      aRoot[i] = pStat->tnum;
      aCreateTbl[i] = 0;
      sqlite3TableLock(pParse, iDb, aRoot[i], 1, zTab);
      if( zWhere ){
        sqlite3NestedParse(pParse,
           "DELETE FROM %Q.%s WHERE %s=%Q",
           pDb->zName, zTab, zWhereType, zWhere
        );
      }else{
        /* The sqlite_stat[134] table already exists.  Delete all rows. */
        sqlite3VdbeAddOp2(v, OP_Clear, aRoot[i], iDb);
      }
    }
  }
................................................................................
  }
  assert( sqlite3BtreeHoldsAllMutexes(db) );
  iDb = sqlite3SchemaToIndex(db, pTab->pSchema);
  assert( iDb>=0 );
  assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
#ifndef SQLITE_OMIT_AUTHORIZATION
  if( sqlite3AuthCheck(pParse, SQLITE_ANALYZE, pTab->zName, 0,
      db->aDb[iDb].zName ) ){
    return;
  }
#endif

  /* Establish a read-lock on the table at the shared-cache level. 
  ** Open a read-only cursor on the table. Also allocate a cursor number
  ** to use for scanning indexes (iIdxCur). No index cursor is opened at
................................................................................
        sqlite3DbFree(db, z);
      }
    }
  }else{
    /* Form 3: Analyze the fully qualified table name */
    iDb = sqlite3TwoPartName(pParse, pName1, pName2, &pTableName);
    if( iDb>=0 ){
      zDb = db->aDb[iDb].zName;
      z = sqlite3NameFromToken(db, pTableName);
      if( z ){
        if( (pIdx = sqlite3FindIndex(db, z, zDb))!=0 ){
          analyzeTable(pParse, pIdx->pTable, pIdx);
        }else if( (pTab = sqlite3LocateTable(pParse, 0, z, zDb))!=0 ){
          analyzeTable(pParse, pTab, 0);
        }
................................................................................
    sqlite3DeleteIndexSamples(db, pIdx);
    pIdx->aSample = 0;
#endif
  }

  /* Load new statistics out of the sqlite_stat1 table */
  sInfo.db = db;
  sInfo.zDatabase = db->aDb[iDb].zName;
  if( sqlite3FindTable(db, "sqlite_stat1", sInfo.zDatabase)!=0 ){
    zSql = sqlite3MPrintf(db, 
        "SELECT tbl,idx,stat FROM %Q.sqlite_stat1", sInfo.zDatabase);
    if( zSql==0 ){
      rc = SQLITE_NOMEM_BKPT;
    }else{
      rc = sqlite3_exec(db, zSql, analysisLoader, &sInfo, 0);
................................................................................
    goto attach_error;
  }
  if( !db->autoCommit ){
    zErrDyn = sqlite3MPrintf(db, "cannot ATTACH database within transaction");
    goto attach_error;
  }
  for(i=0; i<db->nDb; i++){
    char *z = db->aDb[i].zName;
    assert( z && zName );
    if( sqlite3StrICmp(z, zName)==0 ){
      zErrDyn = sqlite3MPrintf(db, "database %s is already in use", zName);
      goto attach_error;
    }
  }

................................................................................
#ifndef SQLITE_OMIT_PAGER_PRAGMAS
    sqlite3BtreeSetPagerFlags(aNew->pBt,
                      PAGER_SYNCHRONOUS_FULL | (db->flags & PAGER_FLAGS_MASK));
#endif
    sqlite3BtreeLeave(aNew->pBt);
  }
  aNew->safety_level = SQLITE_DEFAULT_SYNCHRONOUS+1;
  aNew->zName = sqlite3DbStrDup(db, zName);
  if( rc==SQLITE_OK && aNew->zName==0 ){
    rc = SQLITE_NOMEM_BKPT;
  }


#ifdef SQLITE_HAS_CODEC
  if( rc==SQLITE_OK ){
    extern int sqlite3CodecAttach(sqlite3*, int, const void*, int);
................................................................................
        zKey = (char *)sqlite3_value_blob(argv[2]);
        rc = sqlite3CodecAttach(db, db->nDb-1, zKey, nKey);
        break;

      case SQLITE_NULL:
        /* No key specified.  Use the key from the main database */
        sqlite3CodecGetKey(db, 0, (void**)&zKey, &nKey);
        if( nKey>0 || sqlite3BtreeGetOptimalReserve(db->aDb[0].pBt)>0 ){
          rc = sqlite3CodecAttach(db, db->nDb-1, zKey, nKey);
        }
        break;
    }
  }
#endif

................................................................................

  UNUSED_PARAMETER(NotUsed);

  if( zName==0 ) zName = "";
  for(i=0; i<db->nDb; i++){
    pDb = &db->aDb[i];
    if( pDb->pBt==0 ) continue;
    if( sqlite3StrICmp(pDb->zName, zName)==0 ) break;
  }

  if( i>=db->nDb ){
    sqlite3_snprintf(sizeof(zErr),zErr, "no such database: %s", zName);
    goto detach_error;
  }
  if( i<2 ){
................................................................................
  const Token *pName  /* Name of the view, trigger, or index */
){
  sqlite3 *db;

  db = pParse->db;
  assert( db->nDb>iDb );
  pFix->pParse = pParse;
  pFix->zDb = db->aDb[iDb].zName;
  pFix->pSchema = db->aDb[iDb].pSchema;
  pFix->zType = zType;
  pFix->pName = pName;
  pFix->bVarOnly = (iDb==1);
}

/*
................................................................................
      if( pFix->pParse->db->init.busy ){
        pExpr->op = TK_NULL;
      }else{
        sqlite3ErrorMsg(pFix->pParse, "%s cannot use variables", pFix->zType);
        return 1;
      }
    }
    if( ExprHasProperty(pExpr, EP_TokenOnly) ) break;
    if( ExprHasProperty(pExpr, EP_xIsSelect) ){
      if( sqlite3FixSelect(pFix, pExpr->x.pSelect) ) return 1;
    }else{
      if( sqlite3FixExprList(pFix, pExpr->x.pList) ) return 1;
    }
    if( sqlite3FixExpr(pFix, pExpr->pRight) ){
      return 1;
................................................................................
** will return with an error.  SQLITE_IGNORE means that the SQL statement
** should run but attempts to read the specified column will return NULL
** and attempts to write the column will be ignored.
**
** Setting the auth function to NULL disables this hook.  The default
** setting of the auth function is NULL.
*/
SQLITE_API int SQLITE_APICALL sqlite3_set_authorizer(
  sqlite3 *db,
  int (*xAuth)(void*,int,const char*,const char*,const char*,const char*),
  void *pArg
){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
#endif
................................................................................
*/
SQLITE_PRIVATE int sqlite3AuthReadCol(
  Parse *pParse,                  /* The parser context */
  const char *zTab,               /* Table name */
  const char *zCol,               /* Column name */
  int iDb                         /* Index of containing database. */
){
  sqlite3 *db = pParse->db;       /* Database handle */
  char *zDb = db->aDb[iDb].zName; /* Name of attached database */
  int rc;                         /* Auth callback return code */

  if( db->init.busy ) return SQLITE_OK;
  rc = db->xAuth(db->pAuthArg, SQLITE_READ, zTab,zCol,zDb,pParse->zAuthContext
#ifdef SQLITE_USER_AUTHENTICATION
                 ,db->auth.zAuthUser
#endif
                );
................................................................................
  /* Begin by generating some termination code at the end of the
  ** vdbe program
  */
  v = sqlite3GetVdbe(pParse);
  assert( !pParse->isMultiWrite 
       || sqlite3VdbeAssertMayAbort(v, pParse->mayAbort));
  if( v ){
    while( sqlite3VdbeDeletePriorOpcode(v, OP_Close) ){}
    sqlite3VdbeAddOp0(v, OP_Halt);

#if SQLITE_USER_AUTHENTICATION
    if( pParse->nTableLock>0 && db->init.busy==0 ){
      sqlite3UserAuthInit(db);
      if( db->auth.authLevel<UAUTH_User ){
        pParse->rc = SQLITE_AUTH_USER;
        sqlite3ErrorMsg(pParse, "user not authenticated");

        return;
      }
    }
#endif

    /* The cookie mask contains one bit for each database file open.
    ** (Bit 0 is for main, bit 1 is for temp, and so forth.)  Bits are
................................................................................
    if( db->mallocFailed==0 
     && (DbMaskNonZero(pParse->cookieMask) || pParse->pConstExpr)
    ){
      int iDb, i;
      assert( sqlite3VdbeGetOp(v, 0)->opcode==OP_Init );
      sqlite3VdbeJumpHere(v, 0);
      for(iDb=0; iDb<db->nDb; iDb++){

        if( DbMaskTest(pParse->cookieMask, iDb)==0 ) continue;
        sqlite3VdbeUsesBtree(v, iDb);

        sqlite3VdbeAddOp4Int(v,
          OP_Transaction,                    /* Opcode */
          iDb,                               /* P1 */
          DbMaskTest(pParse->writeMask,iDb), /* P2 */
          pParse->cookieValue[iDb],          /* P3 */
          db->aDb[iDb].pSchema->iGeneration  /* P4 */
        );
        if( db->init.busy==0 ) sqlite3VdbeChangeP5(v, 1);
        VdbeComment((v,
              "usesStmtJournal=%d", pParse->mayAbort && pParse->isMultiWrite));
      }
#ifndef SQLITE_OMIT_VIRTUALTABLE
      for(i=0; i<pParse->nVtabLock; i++){
................................................................................
    *  See ticket [a696379c1f08866] */
    if( pParse->pAinc!=0 && pParse->nTab==0 ) pParse->nTab = 1;
    sqlite3VdbeMakeReady(v, pParse);
    pParse->rc = SQLITE_DONE;
  }else{
    pParse->rc = SQLITE_ERROR;
  }

  /* We are done with this Parse object. There is no need to de-initialize it */
#if 0
  pParse->colNamesSet = 0;
  pParse->nTab = 0;
  pParse->nMem = 0;
  pParse->nSet = 0;
  pParse->nVar = 0;
  DbMaskZero(pParse->cookieMask);
#endif
}

/*
** Run the parser and code generator recursively in order to generate
** code for the SQL statement given onto the end of the pParse context
** currently under construction.  When the parser is run recursively
** this way, the final OP_Halt is not appended and other initialization
................................................................................
** care if you decide to try to use this routine for some other purposes.
*/
SQLITE_PRIVATE void sqlite3NestedParse(Parse *pParse, const char *zFormat, ...){
  va_list ap;
  char *zSql;
  char *zErrMsg = 0;
  sqlite3 *db = pParse->db;
# define SAVE_SZ  (sizeof(Parse) - offsetof(Parse,nVar))
  char saveBuf[SAVE_SZ];

  if( pParse->nErr ) return;
  assert( pParse->nested<10 );  /* Nesting should only be of limited depth */
  va_start(ap, zFormat);
  zSql = sqlite3VMPrintf(db, zFormat, ap);
  va_end(ap);
  if( zSql==0 ){
    return;   /* A malloc must have failed */
  }
  pParse->nested++;
  memcpy(saveBuf, &pParse->nVar, SAVE_SZ);
  memset(&pParse->nVar, 0, SAVE_SZ);
  sqlite3RunParser(pParse, zSql, &zErrMsg);
  sqlite3DbFree(db, zErrMsg);
  sqlite3DbFree(db, zSql);
  memcpy(&pParse->nVar, saveBuf, SAVE_SZ);
  pParse->nested--;
}

#if SQLITE_USER_AUTHENTICATION
/*
** Return TRUE if zTable is the name of the system table that stores the
** list of users and their access credentials.
................................................................................
  ** exists */
  if( db->auth.authLevel<UAUTH_Admin && sqlite3UserAuthTable(zName)!=0 ){
    return 0;
  }
#endif
  for(i=OMIT_TEMPDB; i<db->nDb; i++){
    int j = (i<2) ? i^1 : i;   /* Search TEMP before MAIN */
    if( zDatabase!=0 && sqlite3StrICmp(zDatabase, db->aDb[j].zName) ) continue;
    assert( sqlite3SchemaMutexHeld(db, j, 0) );
    p = sqlite3HashFind(&db->aDb[j].pSchema->tblHash, zName);
    if( p ) break;

  }
  return p;
}

/*
** Locate the in-memory structure that describes a particular database
** table given the name of that table and (optionally) the name of the
................................................................................
  u32 flags,
  struct SrcList_item *p
){
  const char *zDb;
  assert( p->pSchema==0 || p->zDatabase==0 );
  if( p->pSchema ){
    int iDb = sqlite3SchemaToIndex(pParse->db, p->pSchema);
    zDb = pParse->db->aDb[iDb].zName;
  }else{
    zDb = p->zDatabase;
  }
  return sqlite3LocateTable(pParse, flags, p->zName, zDb);
}

/*
................................................................................
  int i;
  /* All mutexes are required for schema access.  Make sure we hold them. */
  assert( zDb!=0 || sqlite3BtreeHoldsAllMutexes(db) );
  for(i=OMIT_TEMPDB; i<db->nDb; i++){
    int j = (i<2) ? i^1 : i;  /* Search TEMP before MAIN */
    Schema *pSchema = db->aDb[j].pSchema;
    assert( pSchema );
    if( zDb && sqlite3StrICmp(zDb, db->aDb[j].zName) ) continue;
    assert( sqlite3SchemaMutexHeld(db, j, 0) );
    p = sqlite3HashFind(&pSchema->idxHash, zName);
    if( p ) break;
  }
  return p;
}

................................................................................
** are never candidates for being collapsed.
*/
SQLITE_PRIVATE void sqlite3CollapseDatabaseArray(sqlite3 *db){
  int i, j;
  for(i=j=2; i<db->nDb; i++){
    struct Db *pDb = &db->aDb[i];
    if( pDb->pBt==0 ){
      sqlite3DbFree(db, pDb->zName);
      pDb->zName = 0;
      continue;
    }
    if( j<i ){
      db->aDb[j] = db->aDb[i];
    }
    j++;
  }
................................................................................
** -1 if the named db cannot be found.
*/
SQLITE_PRIVATE int sqlite3FindDbName(sqlite3 *db, const char *zName){
  int i = -1;         /* Database number */
  if( zName ){
    Db *pDb;
    for(i=(db->nDb-1), pDb=&db->aDb[i]; i>=0; i--, pDb--){
      if( 0==sqlite3StrICmp(pDb->zName, zName) ) break;
    }
  }
  return i;
}

/*
** The token *pName contains the name of a database (either "main" or
................................................................................
    *pUnqual = pName2;
    iDb = sqlite3FindDb(db, pName1);
    if( iDb<0 ){
      sqlite3ErrorMsg(pParse, "unknown database %T", pName1);
      return -1;
    }
  }else{
    assert( db->init.iDb==0 || db->init.busy );
    iDb = db->init.iDb;
    *pUnqual = pName1;
  }
  return iDb;
}

/*
................................................................................
  {
    static const u8 aCode[] = {
       SQLITE_CREATE_TABLE,
       SQLITE_CREATE_TEMP_TABLE,
       SQLITE_CREATE_VIEW,
       SQLITE_CREATE_TEMP_VIEW
    };
    char *zDb = db->aDb[iDb].zName;
    if( sqlite3AuthCheck(pParse, SQLITE_INSERT, SCHEMA_TABLE(isTemp), 0, zDb) ){
      goto begin_table_error;
    }
    if( !isVirtual && sqlite3AuthCheck(pParse, (int)aCode[isTemp+2*isView],
                                       zName, 0, zDb) ){
      goto begin_table_error;
    }
................................................................................
  ** index or table name in the same database.  Issue an error message if
  ** it does. The exception is if the statement being parsed was passed
  ** to an sqlite3_declare_vtab() call. In that case only the column names
  ** and types will be used, so there is no need to test for namespace
  ** collisions.
  */
  if( !IN_DECLARE_VTAB ){
    char *zDb = db->aDb[iDb].zName;
    if( SQLITE_OK!=sqlite3ReadSchema(pParse) ){
      goto begin_table_error;
    }
    pTable = sqlite3FindTable(db, zName, zDb);
    if( pTable ){
      if( !noErr ){
        sqlite3ErrorMsg(pParse, "table %T already exists", pName);
................................................................................
** since it was last read.
**
** This plan is not completely bullet-proof.  It is possible for
** the schema to change multiple times and for the cookie to be
** set back to prior value.  But schema changes are infrequent
** and the probability of hitting the same cookie value is only
** 1 chance in 2^32.  So we're safe enough.



*/
SQLITE_PRIVATE void sqlite3ChangeCookie(Parse *pParse, int iDb){
  sqlite3 *db = pParse->db;
  Vdbe *v = pParse->pVdbe;
  assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
  sqlite3VdbeAddOp3(v, OP_SetCookie, iDb, BTREE_SCHEMA_VERSION, 
                    db->aDb[iDb].pSchema->schema_cookie+1);
................................................................................
    ** SQLITE_MASTER table.  We just need to update that slot with all
    ** the information we've collected.
    */
    sqlite3NestedParse(pParse,
      "UPDATE %Q.%s "
         "SET type='%s', name=%Q, tbl_name=%Q, rootpage=#%d, sql=%Q "
       "WHERE rowid=#%d",
      db->aDb[iDb].zName, SCHEMA_TABLE(iDb),
      zType,
      p->zName,
      p->zName,
      pParse->regRoot,
      zStmt,
      pParse->regRowid
    );
................................................................................
    sqlite3DbFree(db, zStmt);
    sqlite3ChangeCookie(pParse, iDb);

#ifndef SQLITE_OMIT_AUTOINCREMENT
    /* Check to see if we need to create an sqlite_sequence table for
    ** keeping track of autoincrement keys.
    */
    if( p->tabFlags & TF_Autoincrement ){
      Db *pDb = &db->aDb[iDb];
      assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
      if( pDb->pSchema->pSeqTab==0 ){
        sqlite3NestedParse(pParse,
          "CREATE TABLE %Q.sqlite_sequence(name,seq)",
          pDb->zName
        );
      }
    }
#endif

    /* Reparse everything to update our internal data structures */
    sqlite3VdbeAddParseSchemaOp(v, iDb,
................................................................................
*/
SQLITE_PRIVATE int sqlite3ViewGetColumnNames(Parse *pParse, Table *pTable){
  Table *pSelTab;   /* A fake table from which we get the result set */
  Select *pSel;     /* Copy of the SELECT that implements the view */
  int nErr = 0;     /* Number of errors encountered */
  int n;            /* Temporarily holds the number of cursors assigned */
  sqlite3 *db = pParse->db;  /* Database connection for malloc errors */

  sqlite3_xauth xAuth;       /* Saved xAuth pointer */


  assert( pTable );

#ifndef SQLITE_OMIT_VIRTUALTABLE
  if( sqlite3VtabCallConnect(pParse, pTable) ){
    return SQLITE_ERROR;
  }
................................................................................
  **
  ** The "#NNN" in the SQL is a special constant that means whatever value
  ** is in register NNN.  See grammar rules associated with the TK_REGISTER
  ** token for additional information.
  */
  sqlite3NestedParse(pParse, 
     "UPDATE %Q.%s SET rootpage=%d WHERE #%d AND rootpage=#%d",
     pParse->db->aDb[iDb].zName, SCHEMA_TABLE(iDb), iTable, r1, r1);
#endif
  sqlite3ReleaseTempReg(pParse, r1);
}

/*
** Write VDBE code to erase table pTab and all associated indices on disk.
** Code to update the sqlite_master tables and internal schema definitions
................................................................................
static void sqlite3ClearStatTables(
  Parse *pParse,         /* The parsing context */
  int iDb,               /* The database number */
  const char *zType,     /* "idx" or "tbl" */
  const char *zName      /* Name of index or table */
){
  int i;
  const char *zDbName = pParse->db->aDb[iDb].zName;
  for(i=1; i<=4; i++){
    char zTab[24];
    sqlite3_snprintf(sizeof(zTab),zTab,"sqlite_stat%d",i);
    if( sqlite3FindTable(pParse->db, zTab, zDbName) ){
      sqlite3NestedParse(pParse,
        "DELETE FROM %Q.%s WHERE %s=%Q",
        zDbName, zTab, zType, zName
................................................................................
  ** the table being dropped. This is done before the table is dropped
  ** at the btree level, in case the sqlite_sequence table needs to
  ** move as a result of the drop (can happen in auto-vacuum mode).
  */
  if( pTab->tabFlags & TF_Autoincrement ){
    sqlite3NestedParse(pParse,
      "DELETE FROM %Q.sqlite_sequence WHERE name=%Q",
      pDb->zName, pTab->zName
    );
  }
#endif

  /* Drop all SQLITE_MASTER table and index entries that refer to the
  ** table. The program name loops through the master table and deletes
  ** every row that refers to a table of the same name as the one being
  ** dropped. Triggers are handled separately because a trigger can be
  ** created in the temp database that refers to a table in another
  ** database.
  */
  sqlite3NestedParse(pParse, 
      "DELETE FROM %Q.%s WHERE tbl_name=%Q and type!='trigger'",
      pDb->zName, SCHEMA_TABLE(iDb), pTab->zName);
  if( !isView && !IsVirtual(pTab) ){
    destroyTable(pParse, pTab);
  }

  /* Remove the table entry from SQLite's internal schema and modify
  ** the schema cookie.
  */
................................................................................
  if( IsVirtual(pTab) && sqlite3ViewGetColumnNames(pParse, pTab) ){
    goto exit_drop_table;
  }
#ifndef SQLITE_OMIT_AUTHORIZATION
  {
    int code;
    const char *zTab = SCHEMA_TABLE(iDb);
    const char *zDb = db->aDb[iDb].zName;
    const char *zArg2 = 0;
    if( sqlite3AuthCheck(pParse, SQLITE_DELETE, zTab, 0, zDb)){
      goto exit_drop_table;
    }
    if( isView ){
      if( !OMIT_TEMPDB && iDb==1 ){
        code = SQLITE_DROP_TEMP_VIEW;
................................................................................
  KeyInfo *pKey;                 /* KeyInfo for index */
  int regRecord;                 /* Register holding assembled index record */
  sqlite3 *db = pParse->db;      /* The database connection */
  int iDb = sqlite3SchemaToIndex(db, pIndex->pSchema);

#ifndef SQLITE_OMIT_AUTHORIZATION
  if( sqlite3AuthCheck(pParse, SQLITE_REINDEX, pIndex->zName, 0,
      db->aDb[iDb].zName ) ){
    return;
  }
#endif

  /* Require a write-lock on the table to perform this operation */
  sqlite3TableLock(pParse, iDb, pTab->tnum, 1, pTab->zName);

................................................................................
    }
    if( !db->init.busy ){
      if( sqlite3FindTable(db, zName, 0)!=0 ){
        sqlite3ErrorMsg(pParse, "there is already a table named %s", zName);
        goto exit_create_index;
      }
    }
    if( sqlite3FindIndex(db, zName, pDb->zName)!=0 ){
      if( !ifNotExist ){
        sqlite3ErrorMsg(pParse, "index %s already exists", zName);
      }else{
        assert( !db->init.busy );
        sqlite3CodeVerifySchema(pParse, iDb);
      }
      goto exit_create_index;
................................................................................
    int n;
    Index *pLoop;
    for(pLoop=pTab->pIndex, n=1; pLoop; pLoop=pLoop->pNext, n++){}
    zName = sqlite3MPrintf(db, "sqlite_autoindex_%s_%d", pTab->zName, n);
    if( zName==0 ){
      goto exit_create_index;
    }







  }

  /* Check for authorization to create an index.
  */
#ifndef SQLITE_OMIT_AUTHORIZATION
  {
    const char *zDb = pDb->zName;
    if( sqlite3AuthCheck(pParse, SQLITE_INSERT, SCHEMA_TABLE(iDb), 0, zDb) ){
      goto exit_create_index;
    }
    i = SQLITE_CREATE_INDEX;
    if( !OMIT_TEMPDB && iDb==1 ) i = SQLITE_CREATE_TEMP_INDEX;
    if( sqlite3AuthCheck(pParse, i, zName, pTab->zName, zDb) ){
      goto exit_create_index;
................................................................................
      zStmt = 0;
    }

    /* Add an entry in sqlite_master for this index
    */
    sqlite3NestedParse(pParse, 
        "INSERT INTO %Q.%s VALUES('index',%Q,%Q,#%d,%Q);",
        db->aDb[iDb].zName, SCHEMA_TABLE(iDb),
        pIndex->zName,
        pTab->zName,
        iMem,
        zStmt
    );
    sqlite3DbFree(db, zStmt);

................................................................................
    goto exit_drop_index;
  }
  iDb = sqlite3SchemaToIndex(db, pIndex->pSchema);
#ifndef SQLITE_OMIT_AUTHORIZATION
  {
    int code = SQLITE_DROP_INDEX;
    Table *pTab = pIndex->pTable;
    const char *zDb = db->aDb[iDb].zName;
    const char *zTab = SCHEMA_TABLE(iDb);
    if( sqlite3AuthCheck(pParse, SQLITE_DELETE, zTab, 0, zDb) ){
      goto exit_drop_index;
    }
    if( !OMIT_TEMPDB && iDb ) code = SQLITE_DROP_TEMP_INDEX;
    if( sqlite3AuthCheck(pParse, code, pIndex->zName, pTab->zName, zDb) ){
      goto exit_drop_index;
................................................................................

  /* Generate code to remove the index and from the master table */
  v = sqlite3GetVdbe(pParse);
  if( v ){
    sqlite3BeginWriteOperation(pParse, 1, iDb);
    sqlite3NestedParse(pParse,
       "DELETE FROM %Q.%s WHERE name=%Q AND type='index'",
       db->aDb[iDb].zName, SCHEMA_TABLE(iDb), pIndex->zName
    );
    sqlite3ClearStatTables(pParse, iDb, "idx", pIndex->zName);
    sqlite3ChangeCookie(pParse, iDb);
    destroyRootPage(pParse, pIndex->tnum, iDb);
    sqlite3VdbeAddOp4(v, OP_DropIndex, iDb, 0, 0, pIndex->zName, 0);
  }

................................................................................
** Record the fact that the schema cookie will need to be verified
** for database iDb.  The code to actually verify the schema cookie
** will occur at the end of the top-level VDBE and will be generated
** later, by sqlite3FinishCoding().
*/
SQLITE_PRIVATE void sqlite3CodeVerifySchema(Parse *pParse, int iDb){
  Parse *pToplevel = sqlite3ParseToplevel(pParse);
  sqlite3 *db = pToplevel->db;

  assert( iDb>=0 && iDb<db->nDb );
  assert( db->aDb[iDb].pBt!=0 || iDb==1 );
  assert( iDb<SQLITE_MAX_ATTACHED+2 );
  assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
  if( DbMaskTest(pToplevel->cookieMask, iDb)==0 ){
    DbMaskSet(pToplevel->cookieMask, iDb);
    pToplevel->cookieValue[iDb] = db->aDb[iDb].pSchema->schema_cookie;
    if( !OMIT_TEMPDB && iDb==1 ){
      sqlite3OpenTempDatabase(pToplevel);
    }
  }
}

/*
................................................................................
** attached database. Otherwise, invoke it for the database named zDb only.
*/
SQLITE_PRIVATE void sqlite3CodeVerifyNamedSchema(Parse *pParse, const char *zDb){
  sqlite3 *db = pParse->db;
  int i;
  for(i=0; i<db->nDb; i++){
    Db *pDb = &db->aDb[i];
    if( pDb->pBt && (!zDb || 0==sqlite3StrICmp(zDb, pDb->zName)) ){
      sqlite3CodeVerifySchema(pParse, i);
    }
  }
}

/*
** Generate VDBE code that prepares for doing an operation that
................................................................................
    }
    sqlite3DbFree(db, zColl);
  }
  iDb = sqlite3TwoPartName(pParse, pName1, pName2, &pObjName);
  if( iDb<0 ) return;
  z = sqlite3NameFromToken(db, pObjName);
  if( z==0 ) return;
  zDb = db->aDb[iDb].zName;
  pTab = sqlite3FindTable(db, z, zDb);
  if( pTab ){
    reindexTable(pParse, pTab, 0);
    sqlite3DbFree(db, z);
    return;
  }
  pIndex = sqlite3FindIndex(db, z, zDb);
................................................................................
  sqlite3 *db = pParse->db;
  int iDb = sqlite3SchemaToIndex(db, pView->pSchema);
  pWhere = sqlite3ExprDup(db, pWhere, 0);
  pFrom = sqlite3SrcListAppend(db, 0, 0, 0);
  if( pFrom ){
    assert( pFrom->nSrc==1 );
    pFrom->a[0].zName = sqlite3DbStrDup(db, pView->zName);
    pFrom->a[0].zDatabase = sqlite3DbStrDup(db, db->aDb[iDb].zName);
    assert( pFrom->a[0].pOn==0 );
    assert( pFrom->a[0].pUsing==0 );
  }
  pSel = sqlite3SelectNew(pParse, 0, pFrom, pWhere, 0, 0, 0, 
                          SF_IncludeHidden, 0, 0);
  sqlite3SelectDestInit(&dest, SRT_EphemTab, iCur);
  sqlite3Select(pParse, pSel, &dest);
................................................................................
SQLITE_PRIVATE void sqlite3DeleteFrom(
  Parse *pParse,         /* The parser context */
  SrcList *pTabList,     /* The table from which we should delete things */
  Expr *pWhere           /* The WHERE clause.  May be null */
){
  Vdbe *v;               /* The virtual database engine */
  Table *pTab;           /* The table from which records will be deleted */
  const char *zDb;       /* Name of database holding pTab */
  int i;                 /* Loop counter */
  WhereInfo *pWInfo;     /* Information about the WHERE clause */
  Index *pIdx;           /* For looping over indices of the table */
  int iTabCur;           /* Cursor number for the table */
  int iDataCur = 0;      /* VDBE cursor for the canonical data source */
  int iIdxCur = 0;       /* Cursor number of the first index */
  int nIdx;              /* Number of indices */
................................................................................
  }

  if( sqlite3IsReadOnly(pParse, pTab, (pTrigger?1:0)) ){
    goto delete_from_cleanup;
  }
  iDb = sqlite3SchemaToIndex(db, pTab->pSchema);
  assert( iDb<db->nDb );
  zDb = db->aDb[iDb].zName;
  rcauth = sqlite3AuthCheck(pParse, SQLITE_DELETE, pTab->zName, 0, zDb);

  assert( rcauth==SQLITE_OK || rcauth==SQLITE_DENY || rcauth==SQLITE_IGNORE );
  if( rcauth==SQLITE_DENY ){
    goto delete_from_cleanup;
  }
  assert(!isView || pTrigger);

  /* Assign cursor numbers to the table and all its indices.
................................................................................
    ** deleting from and all its indices. If this is a view, then the
    ** only effect this statement has is to fire the INSTEAD OF 
    ** triggers.
    */
    if( !isView ){
      int iAddrOnce = 0;
      if( eOnePass==ONEPASS_MULTI ){
        iAddrOnce = sqlite3CodeOnce(pParse); VdbeCoverage(v);
      }
      testcase( IsVirtual(pTab) );
      sqlite3OpenTableAndIndices(pParse, pTab, OP_OpenWrite, OPFLAG_FORDELETE,
                                 iTabCur, aToOpen, &iDataCur, &iIdxCur);
      assert( pPk || IsVirtual(pTab) || iDataCur==iTabCur );
      assert( pPk || IsVirtual(pTab) || iIdxCur==iDataCur+1 );
      if( eOnePass==ONEPASS_MULTI ) sqlite3VdbeJumpHere(v, iAddrOnce);
................................................................................
  }
  return *zString==0;
}

/*
** The sqlite3_strglob() interface.
*/
SQLITE_API int SQLITE_APICALL sqlite3_strglob(const char *zGlobPattern, const char *zString){
  return patternCompare((u8*)zGlobPattern, (u8*)zString, &globInfo, '[')==0;
}

/*
** The sqlite3_strlike() interface.
*/
SQLITE_API int SQLITE_APICALL sqlite3_strlike(const char *zPattern, const char *zStr, unsigned int esc){
  return patternCompare((u8*)zPattern, (u8*)zStr, &likeInfoNorm, esc)==0;
}

/*
** Count the number of times that the LIKE operator (or GLOB which is
** just a variation of LIKE) gets called.  This is used for testing
** only.
................................................................................
    if( zCharSet ){
      sqlite3_free(azChar);
    }
  }
  sqlite3_result_text(context, (char*)zIn, nIn, SQLITE_TRANSIENT);
}






















/* IMP: R-25361-16150 This function is omitted from SQLite by default. It
** is only available if the SQLITE_SOUNDEX compile-time option is used
** when SQLite is built.
*/
#ifdef SQLITE_SOUNDEX
/*
................................................................................
    AGGREGATE2(count,            0, 0, 0, countStep,       countFinalize,
               SQLITE_FUNC_COUNT  ),
    AGGREGATE(count,             1, 0, 0, countStep,       countFinalize  ),
    AGGREGATE(group_concat,      1, 0, 0, groupConcatStep, groupConcatFinalize),
    AGGREGATE(group_concat,      2, 0, 0, groupConcatStep, groupConcatFinalize),
  
    LIKEFUNC(glob, 2, &globInfo, SQLITE_FUNC_LIKE|SQLITE_FUNC_CASE),
  #ifdef SQLITE_CASE_SENSITIVE_LIKE
    LIKEFUNC(like, 2, &likeInfoAlt, SQLITE_FUNC_LIKE|SQLITE_FUNC_CASE),
    LIKEFUNC(like, 3, &likeInfoAlt, SQLITE_FUNC_LIKE|SQLITE_FUNC_CASE),
  #else
    LIKEFUNC(like, 2, &likeInfoNorm, SQLITE_FUNC_LIKE),
    LIKEFUNC(like, 3, &likeInfoNorm, SQLITE_FUNC_LIKE),
  #endif



    FUNCTION(coalesce,           1, 0, 0, 0                ),
    FUNCTION(coalesce,           0, 0, 0, 0                ),
    FUNCTION2(coalesce,         -1, 0, 0, noopFunc,  SQLITE_FUNC_COALESCE),
  };
#ifndef SQLITE_OMIT_ALTERTABLE
  sqlite3AlterFunctions();
#endif
................................................................................
  /* Exactly one of regOld and regNew should be non-zero. */
  assert( (regOld==0)!=(regNew==0) );

  /* If foreign-keys are disabled, this function is a no-op. */
  if( (db->flags&SQLITE_ForeignKeys)==0 ) return;

  iDb = sqlite3SchemaToIndex(db, pTab->pSchema);
  zDb = db->aDb[iDb].zName;

  /* Loop through all the foreign key constraints for which pTab is the
  ** child table (the table that the foreign key definition is part of).  */
  for(pFKey=pTab->pFKey; pFKey; pFKey=pFKey->pNextFrom){
    Table *pTo;                   /* Parent table of foreign key pFKey */
    Index *pIdx = 0;              /* Index on key columns in pTo */
    int *aiFree = 0;
................................................................................
            sqlite3ExprAlloc(db, TK_ID, &tToCol, 0)
          , 0);
        }else if( action==OE_SetDflt ){
          Expr *pDflt = pFKey->pFrom->aCol[iFromCol].pDflt;
          if( pDflt ){
            pNew = sqlite3ExprDup(db, pDflt, 0);
          }else{
            pNew = sqlite3PExpr(pParse, TK_NULL, 0, 0, 0);
          }
        }else{
          pNew = sqlite3PExpr(pParse, TK_NULL, 0, 0, 0);
        }
        pList = sqlite3ExprListAppend(pParse, pList, pNew);
        sqlite3ExprListSetName(pParse, pList, &tFromCol, 0);
      }
    }
    sqlite3DbFree(db, aiCol);

................................................................................
  return 0;
}

#ifndef SQLITE_OMIT_AUTOINCREMENT
/*
** Locate or create an AutoincInfo structure associated with table pTab
** which is in database iDb.  Return the register number for the register
** that holds the maximum rowid.


**
** There is at most one AutoincInfo structure per table even if the
** same table is autoincremented multiple times due to inserts within
** triggers.  A new AutoincInfo structure is created if this is the
** first use of table pTab.  On 2nd and subsequent uses, the original
** AutoincInfo structure is used.
**
................................................................................
*/
static int autoIncBegin(
  Parse *pParse,      /* Parsing context */
  int iDb,            /* Index of the database holding pTab */
  Table *pTab         /* The table we are writing to */
){
  int memId = 0;      /* Register holding maximum rowid */
  if( pTab->tabFlags & TF_Autoincrement ){


    Parse *pToplevel = sqlite3ParseToplevel(pParse);
    AutoincInfo *pInfo;

    pInfo = pToplevel->pAinc;
    while( pInfo && pInfo->pTab!=pTab ){ pInfo = pInfo->pNext; }
    if( pInfo==0 ){
      pInfo = sqlite3DbMallocRawNN(pParse->db, sizeof(*pInfo));
................................................................................
  Select *pSelect,      /* A SELECT statement to use as the data source */
  IdList *pColumn,      /* Column names corresponding to IDLIST. */
  int onError           /* How to handle constraint errors */
){
  sqlite3 *db;          /* The main database structure */
  Table *pTab;          /* The table to insert into.  aka TABLE */
  char *zTab;           /* Name of the table into which we are inserting */
  const char *zDb;      /* Name of the database holding this table */
  int i, j, idx;        /* Loop counters */
  Vdbe *v;              /* Generate code into this virtual machine */
  Index *pIdx;          /* For looping over indices of the table */
  int nColumn;          /* Number of columns in the data */
  int nHidden = 0;      /* Number of hidden columns if TABLE is virtual */
  int iDataCur = 0;     /* VDBE cursor that is the main data repository */
  int iIdxCur = 0;      /* First index cursor */
................................................................................
  int ipkColumn = -1;   /* Column that is the INTEGER PRIMARY KEY */
  int endOfLoop;        /* Label for the end of the insertion loop */
  int srcTab = 0;       /* Data comes from this temporary cursor if >=0 */
  int addrInsTop = 0;   /* Jump to label "D" */
  int addrCont = 0;     /* Top of insert loop. Label "C" in templates 3 and 4 */
  SelectDest dest;      /* Destination for SELECT on rhs of INSERT */
  int iDb;              /* Index of database holding TABLE */
  Db *pDb;              /* The database containing table being inserted into */
  u8 useTempTable = 0;  /* Store SELECT results in intermediate table */
  u8 appendFlag = 0;    /* True if the insert is likely to be an append */
  u8 withoutRowid;      /* 0 for normal table.  1 for WITHOUT ROWID table */
  u8 bIdListInOrder;    /* True if IDLIST is in table order */
  ExprList *pList = 0;  /* List of VALUES() to be inserted  */

  /* Register allocations */
................................................................................
  if( NEVER(zTab==0) ) goto insert_cleanup;
  pTab = sqlite3SrcListLookup(pParse, pTabList);
  if( pTab==0 ){
    goto insert_cleanup;
  }
  iDb = sqlite3SchemaToIndex(db, pTab->pSchema);
  assert( iDb<db->nDb );
  pDb = &db->aDb[iDb];
  zDb = pDb->zName;
  if( sqlite3AuthCheck(pParse, SQLITE_INSERT, pTab->zName, 0, zDb) ){

    goto insert_cleanup;
  }
  withoutRowid = !HasRowid(pTab);

  /* Figure out if we have any triggers and if the table being
  ** inserted into is a view
  */
................................................................................
  }else{
    sqlite3TableLock(pParse, iDb, pTab->tnum, op==OP_OpenWrite, pTab->zName);
  }
  if( piIdxCur ) *piIdxCur = iBase;
  for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
    int iIdxCur = iBase++;
    assert( pIdx->pSchema==pTab->pSchema );




    if( aToOpen==0 || aToOpen[i+1] ){
      sqlite3VdbeAddOp3(v, op, iIdxCur, pIdx->tnum, iDb);
      sqlite3VdbeSetP4KeyInfo(pParse, pIdx);
      VdbeComment((v, "%s", pIdx->zName));
    }
    if( IsPrimaryKeyIndex(pIdx) && !HasRowid(pTab) ){
      if( piDataCur ) *piDataCur = iIdxCur;
    }else{
      sqlite3VdbeChangeP5(v, p5);

    }
  }
  if( iBase>pParse->nTab ) pParse->nTab = iBase;
  return i;
}


................................................................................
    sqlite3VdbeAddOp2(v, OP_Close, iSrc, 0);
    sqlite3VdbeAddOp2(v, OP_Close, iDest, 0);
  }
  if( emptySrcTest ) sqlite3VdbeJumpHere(v, emptySrcTest);
  sqlite3ReleaseTempReg(pParse, regRowid);
  sqlite3ReleaseTempReg(pParse, regData);
  if( emptyDestTest ){

    sqlite3VdbeAddOp2(v, OP_Halt, SQLITE_OK, 0);
    sqlite3VdbeJumpHere(v, emptyDestTest);
    sqlite3VdbeAddOp2(v, OP_Close, iDest, 0);
    return 0;
  }else{
    return 1;
  }
................................................................................
** malloc() and make *pzErrMsg point to that message.
**
** If the SQL is a query, then for each row in the query result
** the xCallback() function is called.  pArg becomes the first
** argument to xCallback().  If xCallback=NULL then no callback
** is invoked, even for queries.
*/
SQLITE_API int SQLITE_APICALL sqlite3_exec(
  sqlite3 *db,                /* The database on which the SQL executes */
  const char *zSql,           /* The SQL to be executed */
  sqlite3_callback xCallback, /* Invoke this callback routine */
  void *pArg,                 /* First argument to xCallback() */
  char **pzErrMsg             /* Write error messages here */
){
  int rc = SQLITE_OK;         /* Return code */
................................................................................
  }
  sqlite3DbFree(db, db->aExtension);
  db->aExtension = aHandle;

  db->aExtension[db->nExtension++] = handle;
  return SQLITE_OK;
}
SQLITE_API int SQLITE_APICALL sqlite3_load_extension(
  sqlite3 *db,          /* Load the extension into this database connection */
  const char *zFile,    /* Name of the shared library containing extension */
  const char *zProc,    /* Entry point.  Use "sqlite3_extension_init" if 0 */
  char **pzErrMsg       /* Put error message here if not 0 */
){
  int rc;
  sqlite3_mutex_enter(db->mutex);
................................................................................
  sqlite3DbFree(db, db->aExtension);
}

/*
** Enable or disable extension loading.  Extension loading is disabled by
** default so as not to open security holes in older applications.
*/
SQLITE_API int SQLITE_APICALL sqlite3_enable_load_extension(sqlite3 *db, int onoff){
  sqlite3_mutex_enter(db->mutex);
  if( onoff ){
    db->flags |= SQLITE_LoadExtension|SQLITE_LoadExtFunc;
  }else{
    db->flags &= ~(SQLITE_LoadExtension|SQLITE_LoadExtFunc);
  }
  sqlite3_mutex_leave(db->mutex);
  return SQLITE_OK;
}

#endif /* SQLITE_OMIT_LOAD_EXTENSION */

/*
** The auto-extension code added regardless of whether or not extension
** loading is supported.  We need a dummy sqlite3Apis pointer for that
** code if regular extension loading is not available.  This is that
** dummy pointer.
*/
#ifdef SQLITE_OMIT_LOAD_EXTENSION
static const sqlite3_api_routines sqlite3Apis = { 0 };
#endif


/*
** The following object holds the list of automatically loaded
** extensions.
**
** This list is shared across threads.  The SQLITE_MUTEX_STATIC_MASTER
** mutex must be held while accessing this list.
................................................................................
#endif


/*
** Register a statically linked extension that is automatically
** loaded by every new database connection.
*/
SQLITE_API int SQLITE_APICALL sqlite3_auto_extension(
  void (*xInit)(void)
){
  int rc = SQLITE_OK;
#ifndef SQLITE_OMIT_AUTOINIT
  rc = sqlite3_initialize();
  if( rc ){
    return rc;
................................................................................
** set of routines that is invoked for each new database connection, if it
** is currently on the list.  If xInit is not on the list, then this
** routine is a no-op.
**
** Return 1 if xInit was found on the list and removed.  Return 0 if xInit
** was not on the list.
*/
SQLITE_API int SQLITE_APICALL sqlite3_cancel_auto_extension(
  void (*xInit)(void)
){
#if SQLITE_THREADSAFE
  sqlite3_mutex *mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
#endif
  int i;
  int n = 0;
................................................................................
  sqlite3_mutex_leave(mutex);
  return n;
}

/*
** Reset the automatic extension loading mechanism.
*/
SQLITE_API void SQLITE_APICALL sqlite3_reset_auto_extension(void){
#ifndef SQLITE_OMIT_AUTOINIT
  if( sqlite3_initialize()==SQLITE_OK )
#endif
  {
#if SQLITE_THREADSAFE
    sqlite3_mutex *mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
#endif
................................................................................
    return;
  }
  for(i=0; go; i++){
    char *zErrmsg;
#if SQLITE_THREADSAFE
    sqlite3_mutex *mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
#endif





    sqlite3_mutex_enter(mutex);
    if( i>=wsdAutoext.nExt ){
      xInit = 0;
      go = 0;
    }else{
      xInit = (sqlite3_loadext_entry)wsdAutoext.aExt[i];
    }
    sqlite3_mutex_leave(mutex);
    zErrmsg = 0;
    if( xInit && (rc = xInit(db, &zErrmsg, &sqlite3Apis))!=0 ){
      sqlite3ErrorWithMsg(db, rc,
            "automatic extension loading failed: %s", zErrmsg);
      go = 0;
    }
    sqlite3_free(zErrmsg);
  }
}
................................................................................
  if( minusFlag ){
    zRight = sqlite3MPrintf(db, "-%T", pValue);
  }else{
    zRight = sqlite3NameFromToken(db, pValue);
  }

  assert( pId2 );
  zDb = pId2->n>0 ? pDb->zName : 0;
  if( sqlite3AuthCheck(pParse, SQLITE_PRAGMA, zLeft, zRight, zDb) ){
    goto pragma_out;
  }

  /* Send an SQLITE_FCNTL_PRAGMA file-control to the underlying VFS
  ** connection.  If it returns SQLITE_OK, then assume that the VFS
  ** handled the pragma and generate a no-op prepared statement.
................................................................................
  case PragTyp_DATABASE_LIST: {
    static const char *azCol[] = { "seq", "name", "file" };
    int i;
    pParse->nMem = 3;
    setAllColumnNames(v, 3, azCol); assert( 3==ArraySize(azCol) );
    for(i=0; i<db->nDb; i++){
      if( db->aDb[i].pBt==0 ) continue;
      assert( db->aDb[i].zName!=0 );
      sqlite3VdbeMultiLoad(v, 1, "iss",
         i,
         db->aDb[i].zName,
         sqlite3BtreeGetFilename(db->aDb[i].pBt));
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3);
    }
  }
  break;

  case PragTyp_COLLATION_LIST: {
................................................................................
      pParse->nMem = MAX( pParse->nMem, 8+mxIdx );

      /* Do the b-tree integrity checks */
      sqlite3VdbeAddOp4(v, OP_IntegrityCk, 2, cnt, 1, (char*)aRoot,P4_INTARRAY);
      sqlite3VdbeChangeP5(v, (u8)i);
      addr = sqlite3VdbeAddOp1(v, OP_IsNull, 2); VdbeCoverage(v);
      sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0,
         sqlite3MPrintf(db, "*** in database %s ***\n", db->aDb[i].zName),
         P4_DYNAMIC);
      sqlite3VdbeAddOp3(v, OP_Move, 2, 4, 1);
      sqlite3VdbeAddOp3(v, OP_Concat, 4, 3, 2);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 2, 1);
      sqlite3VdbeJumpHere(v, addr);

      /* Make sure all the indices are constructed correctly.
................................................................................
    int i;
    setAllColumnNames(v, 2, azCol); assert( 2==ArraySize(azCol) );
    pParse->nMem = 2;
    for(i=0; i<db->nDb; i++){
      Btree *pBt;
      const char *zState = "unknown";
      int j;
      if( db->aDb[i].zName==0 ) continue;
      pBt = db->aDb[i].pBt;
      if( pBt==0 || sqlite3BtreePager(pBt)==0 ){
        zState = "closed";
      }else if( sqlite3_file_control(db, i ? db->aDb[i].zName : 0, 
                                     SQLITE_FCNTL_LOCKSTATE, &j)==SQLITE_OK ){
         zState = azLockName[j];
      }
      sqlite3VdbeMultiLoad(v, 1, "ss", db->aDb[i].zName, zState);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 2);
    }
    break;
  }
#endif

#ifdef SQLITE_HAS_CODEC
................................................................................
  }else if( sqlite3_strnicmp(argv[2],"create ",7)==0 ){
    /* Call the parser to process a CREATE TABLE, INDEX or VIEW.
    ** But because db->init.busy is set to 1, no VDBE code is generated
    ** or executed.  All the parser does is build the internal data
    ** structures that describe the table, index, or view.
    */
    int rc;

    sqlite3_stmt *pStmt;
    TESTONLY(int rcp);            /* Return code from sqlite3_prepare() */

    assert( db->init.busy );
    db->init.iDb = iDb;
    db->init.newTnum = sqlite3Atoi(argv[1]);
    db->init.orphanTrigger = 0;
    TESTONLY(rcp = ) sqlite3_prepare(db, argv[2], -1, &pStmt, 0);
    rc = db->errCode;
    assert( (rc&0xFF)==(rcp&0xFF) );
    db->init.iDb = 0;

    if( SQLITE_OK!=rc ){
      if( db->init.orphanTrigger ){
        assert( iDb==1 );
      }else{
        pData->rc = rc;
        if( rc==SQLITE_NOMEM ){
          sqlite3OomFault(db);
................................................................................
    /* If the SQL column is blank it means this is an index that
    ** was created to be the PRIMARY KEY or to fulfill a UNIQUE
    ** constraint for a CREATE TABLE.  The index should have already
    ** been created when we processed the CREATE TABLE.  All we have
    ** to do here is record the root page number for that index.
    */
    Index *pIndex;
    pIndex = sqlite3FindIndex(db, argv[0], db->aDb[iDb].zName);
    if( pIndex==0 ){
      /* This can occur if there exists an index on a TEMP table which
      ** has the same name as another index on a permanent index.  Since
      ** the permanent table is hidden by the TEMP table, we can also
      ** safely ignore the index on the permanent table.
      */
      /* Do Nothing */;
................................................................................
  /* Read the schema information out of the schema tables
  */
  assert( db->init.busy );
  {
    char *zSql;
    zSql = sqlite3MPrintf(db, 
        "SELECT name, rootpage, sql FROM \"%w\".%s ORDER BY rowid",
        db->aDb[iDb].zName, zMasterName);
#ifndef SQLITE_OMIT_AUTHORIZATION
    {
      sqlite3_xauth xAuth;
      xAuth = db->xAuth;
      db->xAuth = 0;
#endif
      rc = sqlite3_exec(db, zSql, sqlite3InitCallback, &initData, 0);
................................................................................
  const char *zSql,         /* UTF-8 encoded SQL statement. */
  int nBytes,               /* Length of zSql in bytes. */
  int saveSqlFlag,          /* True to copy SQL text into the sqlite3_stmt */
  Vdbe *pReprepare,         /* VM being reprepared */
  sqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
  const char **pzTail       /* OUT: End of parsed string */
){
  Parse *pParse;            /* Parsing context */
  char *zErrMsg = 0;        /* Error message */
  int rc = SQLITE_OK;       /* Result code */
  int i;                    /* Loop counter */

  /* Allocate the parsing context */
  pParse = sqlite3StackAllocZero(db, sizeof(*pParse));
  if( pParse==0 ){
    rc = SQLITE_NOMEM_BKPT;
    goto end_prepare;
  }


  pParse->pReprepare = pReprepare;
  assert( ppStmt && *ppStmt==0 );
  /* assert( !db->mallocFailed ); // not true with SQLITE_USE_ALLOCA */
  assert( sqlite3_mutex_held(db->mutex) );

  /* Check to verify that it is possible to get a read lock on all
  ** database schemas.  The inability to get a read lock indicates that
  ** some other database connection is holding a write-lock, which in
................................................................................
  */
  for(i=0; i<db->nDb; i++) {
    Btree *pBt = db->aDb[i].pBt;
    if( pBt ){
      assert( sqlite3BtreeHoldsMutex(pBt) );
      rc = sqlite3BtreeSchemaLocked(pBt);
      if( rc ){
        const char *zDb = db->aDb[i].zName;
        sqlite3ErrorWithMsg(db, rc, "database schema is locked: %s", zDb);
        testcase( db->flags & SQLITE_ReadUncommitted );
        goto end_prepare;
      }
    }
  }

  sqlite3VtabUnlockList(db);

  pParse->db = db;
  pParse->nQueryLoop = 0;  /* Logarithmic, so 0 really means 1 */
  if( nBytes>=0 && (nBytes==0 || zSql[nBytes-1]!=0) ){
    char *zSqlCopy;
    int mxLen = db->aLimit[SQLITE_LIMIT_SQL_LENGTH];
    testcase( nBytes==mxLen );
    testcase( nBytes==mxLen+1 );
    if( nBytes>mxLen ){
      sqlite3ErrorWithMsg(db, SQLITE_TOOBIG, "statement too long");
      rc = sqlite3ApiExit(db, SQLITE_TOOBIG);
      goto end_prepare;
    }
    zSqlCopy = sqlite3DbStrNDup(db, zSql, nBytes);
    if( zSqlCopy ){
      sqlite3RunParser(pParse, zSqlCopy, &zErrMsg);
      pParse->zTail = &zSql[pParse->zTail-zSqlCopy];
      sqlite3DbFree(db, zSqlCopy);
    }else{
      pParse->zTail = &zSql[nBytes];
    }
  }else{
    sqlite3RunParser(pParse, zSql, &zErrMsg);
  }
  assert( 0==pParse->nQueryLoop );

  if( pParse->rc==SQLITE_DONE ) pParse->rc = SQLITE_OK;
  if( pParse->checkSchema ){
    schemaIsValid(pParse);
  }
  if( db->mallocFailed ){
    pParse->rc = SQLITE_NOMEM_BKPT;
  }
  if( pzTail ){
    *pzTail = pParse->zTail;
  }
  rc = pParse->rc;

#ifndef SQLITE_OMIT_EXPLAIN
  if( rc==SQLITE_OK && pParse->pVdbe && pParse->explain ){
    static const char * const azColName[] = {
       "addr", "opcode", "p1", "p2", "p3", "p4", "p5", "comment",
       "selectid", "order", "from", "detail"
    };
    int iFirst, mx;
    if( pParse->explain==2 ){
      sqlite3VdbeSetNumCols(pParse->pVdbe, 4);
      iFirst = 8;
      mx = 12;
    }else{
      sqlite3VdbeSetNumCols(pParse->pVdbe, 8);
      iFirst = 0;
      mx = 8;
    }
    for(i=iFirst; i<mx; i++){
      sqlite3VdbeSetColName(pParse->pVdbe, i-iFirst, COLNAME_NAME,
                            azColName[i], SQLITE_STATIC);
    }
  }
#endif

  if( db->init.busy==0 ){
    Vdbe *pVdbe = pParse->pVdbe;
    sqlite3VdbeSetSql(pVdbe, zSql, (int)(pParse->zTail-zSql), saveSqlFlag);
  }
  if( pParse->pVdbe && (rc!=SQLITE_OK || db->mallocFailed) ){
    sqlite3VdbeFinalize(pParse->pVdbe);
    assert(!(*ppStmt));
  }else{
    *ppStmt = (sqlite3_stmt*)pParse->pVdbe;
  }

  if( zErrMsg ){
    sqlite3ErrorWithMsg(db, rc, "%s", zErrMsg);
    sqlite3DbFree(db, zErrMsg);
  }else{
    sqlite3Error(db, rc);
  }

  /* Delete any TriggerPrg structures allocated while parsing this statement. */
  while( pParse->pTriggerPrg ){
    TriggerPrg *pT = pParse->pTriggerPrg;
    pParse->pTriggerPrg = pT->pNext;
    sqlite3DbFree(db, pT);
  }

end_prepare:

  sqlite3ParserReset(pParse);
  sqlite3StackFree(db, pParse);
  rc = sqlite3ApiExit(db, rc);
  assert( (rc&db->errMask)==rc );
  return rc;
}
static int sqlite3LockAndPrepare(
  sqlite3 *db,              /* Database handle. */
  const char *zSql,         /* UTF-8 encoded SQL statement. */
................................................................................
** Two versions of the official API.  Legacy and new use.  In the legacy
** version, the original SQL text is not saved in the prepared statement
** and so if a schema change occurs, SQLITE_SCHEMA is returned by
** sqlite3_step().  In the new version, the original SQL text is retained
** and the statement is automatically recompiled if an schema change
** occurs.
*/
SQLITE_API int SQLITE_APICALL sqlite3_prepare(
  sqlite3 *db,              /* Database handle. */
  const char *zSql,         /* UTF-8 encoded SQL statement. */
  int nBytes,               /* Length of zSql in bytes. */
  sqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
  const char **pzTail       /* OUT: End of parsed string */
){
  int rc;
  rc = sqlite3LockAndPrepare(db,zSql,nBytes,0,0,ppStmt,pzTail);
  assert( rc==SQLITE_OK || ppStmt==0 || *ppStmt==0 );  /* VERIFY: F13021 */
  return rc;
}
SQLITE_API int SQLITE_APICALL sqlite3_prepare_v2(
  sqlite3 *db,              /* Database handle. */
  const char *zSql,         /* UTF-8 encoded SQL statement. */
  int nBytes,               /* Length of zSql in bytes. */
  sqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
  const char **pzTail       /* OUT: End of parsed string */
){
  int rc;
................................................................................
** Two versions of the official API.  Legacy and new use.  In the legacy
** version, the original SQL text is not saved in the prepared statement
** and so if a schema change occurs, SQLITE_SCHEMA is returned by
** sqlite3_step().  In the new version, the original SQL text is retained
** and the statement is automatically recompiled if an schema change
** occurs.
*/
SQLITE_API int SQLITE_APICALL sqlite3_prepare16(
  sqlite3 *db,              /* Database handle. */ 
  const void *zSql,         /* UTF-16 encoded SQL statement. */
  int nBytes,               /* Length of zSql in bytes. */
  sqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
  const void **pzTail       /* OUT: End of parsed string */
){
  int rc;
  rc = sqlite3Prepare16(db,zSql,nBytes,0,ppStmt,pzTail);
  assert( rc==SQLITE_OK || ppStmt==0 || *ppStmt==0 );  /* VERIFY: F13021 */
  return rc;
}
SQLITE_API int SQLITE_APICALL sqlite3_prepare16_v2(
  sqlite3 *db,              /* Database handle. */ 
  const void *zSql,         /* UTF-16 encoded SQL statement. */
  int nBytes,               /* Length of zSql in bytes. */
  sqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
  const void **pzTail       /* OUT: End of parsed string */
){
  int rc;
................................................................................

/*
** Initialize a SelectDest structure.
*/
SQLITE_PRIVATE void sqlite3SelectDestInit(SelectDest *pDest, int eDest, int iParm){
  pDest->eDest = (u8)eDest;
  pDest->iSDParm = iParm;
  pDest->affSdst = 0;
  pDest->iSdst = 0;
  pDest->nSdst = 0;
}


/*
** Allocate a new Select structure and return a pointer to that
................................................................................
  r1 = sqlite3GetTempReg(pParse);
  sqlite3VdbeAddOp4Int(v, OP_Found, iTab, addrRepeat, iMem, N); VdbeCoverage(v);
  sqlite3VdbeAddOp3(v, OP_MakeRecord, iMem, N, r1);
  sqlite3VdbeAddOp2(v, OP_IdxInsert, iTab, r1);
  sqlite3ReleaseTempReg(pParse, r1);
}

#ifndef SQLITE_OMIT_SUBQUERY
/*
** Generate an error message when a SELECT is used within a subexpression
** (example:  "a IN (SELECT * FROM table)") but it has more than 1 result
** column.  We do this in a subroutine because the error used to occur
** in multiple places.  (The error only occurs in one place now, but we
** retain the subroutine to minimize code disruption.)
*/
static int checkForMultiColumnSelectError(
  Parse *pParse,       /* Parse context. */
  SelectDest *pDest,   /* Destination of SELECT results */
  int nExpr            /* Number of result columns returned by SELECT */
){
  int eDest = pDest->eDest;
  if( nExpr>1 && (eDest==SRT_Mem || eDest==SRT_Set) ){
    sqlite3ErrorMsg(pParse, "only a single result allowed for "
       "a SELECT that is part of an expression");
    return 1;
  }else{
    return 0;
  }
}
#endif

/*
** This routine generates the code for the inside of the inner loop
** of a SELECT.
**
** If srcTab is negative, then the pEList expressions
** are evaluated in order to get the data for this row.  If srcTab is
** zero or more, then data is pulled from srcTab and pEList is used only 
................................................................................

#ifndef SQLITE_OMIT_SUBQUERY
    /* If we are creating a set for an "expr IN (SELECT ...)" construct,
    ** then there should be a single item on the stack.  Write this
    ** item into the set table with bogus data.
    */
    case SRT_Set: {
      assert( nResultCol==1 );
      pDest->affSdst =
                  sqlite3CompareAffinity(pEList->a[0].pExpr, pDest->affSdst);
      if( pSort ){
        /* At first glance you would think we could optimize out the
        ** ORDER BY in this case since the order of entries in the set
        ** does not matter.  But there might be a LIMIT clause, in which
        ** case the order does matter */

        pushOntoSorter(pParse, pSort, p, regResult, regResult, 1, nPrefixReg);
      }else{
        int r1 = sqlite3GetTempReg(pParse);

        sqlite3VdbeAddOp4(v, OP_MakeRecord, regResult,1,r1, &pDest->affSdst, 1);

        sqlite3ExprCacheAffinityChange(pParse, regResult, 1);
        sqlite3VdbeAddOp2(v, OP_IdxInsert, iParm, r1);
        sqlite3ReleaseTempReg(pParse, r1);
      }
      break;
    }

    /* If any row exist in the result set, record that fact and abort.
................................................................................
    case SRT_Exists: {
      sqlite3VdbeAddOp2(v, OP_Integer, 1, iParm);
      /* The LIMIT clause will terminate the loop for us */
      break;
    }

    /* If this is a scalar select that is part of an expression, then
    ** store the results in the appropriate memory cell and break out
    ** of the scan loop.
    */
    case SRT_Mem: {
      assert( nResultCol==1 );
      if( pSort ){

        pushOntoSorter(pParse, pSort, p, regResult, regResult, 1, nPrefixReg);
      }else{
        assert( regResult==iParm );
        /* The LIMIT clause will jump out of the loop for us */
      }
      break;
    }
#endif /* #ifndef SQLITE_OMIT_SUBQUERY */
................................................................................

/*
** Allocate a KeyInfo object sufficient for an index of N key columns and
** X extra columns.
*/
SQLITE_PRIVATE KeyInfo *sqlite3KeyInfoAlloc(sqlite3 *db, int N, int X){
  int nExtra = (N+X)*(sizeof(CollSeq*)+1);
  KeyInfo *p = sqlite3DbMallocRaw(db, sizeof(KeyInfo) + nExtra);
  if( p ){
    p->aSortOrder = (u8*)&p->aColl[N+X];
    p->nField = (u16)N;
    p->nXField = (u16)X;
    p->enc = ENC(db);
    p->db = db;
    p->nRef = 1;
................................................................................
  assert( addrBreak<0 );
  if( pSort->labelBkOut ){
    sqlite3VdbeAddOp2(v, OP_Gosub, pSort->regReturn, pSort->labelBkOut);
    sqlite3VdbeGoto(v, addrBreak);
    sqlite3VdbeResolveLabel(v, pSort->labelBkOut);
  }
  iTab = pSort->iECursor;
  if( eDest==SRT_Output || eDest==SRT_Coroutine ){
    regRowid = 0;
    regRow = pDest->iSdst;
    nSortData = nColumn;
  }else{
    regRowid = sqlite3GetTempReg(pParse);
    regRow = sqlite3GetTempReg(pParse);
    nSortData = 1;
  }
  nKey = pOrderBy->nExpr - pSort->nOBSat;
  if( pSort->sortFlags & SORTFLAG_UseSorter ){
    int regSortOut = ++pParse->nMem;
    iSortTab = pParse->nTab++;
    if( pSort->labelBkOut ){
      addrOnce = sqlite3CodeOnce(pParse); VdbeCoverage(v);
    }
    sqlite3VdbeAddOp3(v, OP_OpenPseudo, iSortTab, regSortOut, nKey+1+nSortData);
    if( addrOnce ) sqlite3VdbeJumpHere(v, addrOnce);
    addr = 1 + sqlite3VdbeAddOp2(v, OP_SorterSort, iTab, addrBreak);
    VdbeCoverage(v);
    codeOffset(v, p->iOffset, addrContinue);
    sqlite3VdbeAddOp3(v, OP_SorterData, iTab, regSortOut, iSortTab);
................................................................................
      sqlite3VdbeAddOp2(v, OP_NewRowid, iParm, regRowid);
      sqlite3VdbeAddOp3(v, OP_Insert, iParm, regRow, regRowid);
      sqlite3VdbeChangeP5(v, OPFLAG_APPEND);
      break;
    }
#ifndef SQLITE_OMIT_SUBQUERY
    case SRT_Set: {
      assert( nColumn==1 );
      sqlite3VdbeAddOp4(v, OP_MakeRecord, regRow, 1, regRowid,
                        &pDest->affSdst, 1);
      sqlite3ExprCacheAffinityChange(pParse, regRow, 1);
      sqlite3VdbeAddOp2(v, OP_IdxInsert, iParm, regRowid);
      break;
    }
    case SRT_Mem: {
      assert( nColumn==1 );
      sqlite3ExprCodeMove(pParse, regRow, iParm, 1);
      /* The LIMIT clause will terminate the loop for us */
      break;
    }
#endif
    default: {
      assert( eDest==SRT_Output || eDest==SRT_Coroutine ); 
      testcase( eDest==SRT_Output );
................................................................................
      }else{
        sqlite3VdbeAddOp1(v, OP_Yield, pDest->iSDParm);
      }
      break;
    }
  }
  if( regRowid ){



    sqlite3ReleaseTempReg(pParse, regRow);

    sqlite3ReleaseTempReg(pParse, regRowid);
  }
  /* The bottom of the loop
  */
  sqlite3VdbeResolveLabel(v, addrContinue);
  if( pSort->sortFlags & SORTFLAG_UseSorter ){
    sqlite3VdbeAddOp2(v, OP_SorterNext, iTab, addr); VdbeCoverage(v);
................................................................................
          zOrigCol = pTab->aCol[iCol].zName;
          zType = sqlite3ColumnType(&pTab->aCol[iCol],0);
          estWidth = pTab->aCol[iCol].szEst;
        }
        zOrigTab = pTab->zName;
        if( pNC->pParse ){
          int iDb = sqlite3SchemaToIndex(pNC->pParse->db, pTab->pSchema);
          zOrigDb = pNC->pParse->db->aDb[iDb].zName;
        }
#else
        if( iCol<0 ){
          zType = "INTEGER";
        }else{
          zType = sqlite3ColumnType(&pTab->aCol[iCol],0);
          estWidth = pTab->aCol[iCol].szEst;
................................................................................

/*
** Get a VDBE for the given parser context.  Create a new one if necessary.
** If an error occurs, return NULL and leave a message in pParse.
*/
static SQLITE_NOINLINE Vdbe *allocVdbe(Parse *pParse){
  Vdbe *v = pParse->pVdbe = sqlite3VdbeCreate(pParse);
  if( v ) sqlite3VdbeAddOp0(v, OP_Init);
  if( pParse->pToplevel==0
   && OptimizationEnabled(pParse->db,SQLITE_FactorOutConst)
  ){
    pParse->okConstFactor = 1;
  }
  return v;
}
................................................................................
      sqlite3VdbeChangeP5(v, OPFLAG_APPEND);
      sqlite3ReleaseTempReg(pParse, r2);
      sqlite3ReleaseTempReg(pParse, r1);
      break;
    }

#ifndef SQLITE_OMIT_SUBQUERY
    /* If we are creating a set for an "expr IN (SELECT ...)" construct,
    ** then there should be a single item on the stack.  Write this
    ** item into the set table with bogus data.
    */
    case SRT_Set: {
      int r1;
      assert( pIn->nSdst==1 || pParse->nErr>0 );
      pDest->affSdst = 
         sqlite3CompareAffinity(p->pEList->a[0].pExpr, pDest->affSdst);
      r1 = sqlite3GetTempReg(pParse);
      sqlite3VdbeAddOp4(v, OP_MakeRecord, pIn->iSdst, 1, r1, &pDest->affSdst,1);

      sqlite3ExprCacheAffinityChange(pParse, pIn->iSdst, 1);
      sqlite3VdbeAddOp2(v, OP_IdxInsert, pDest->iSDParm, r1);
      sqlite3ReleaseTempReg(pParse, r1);
      break;
    }

    /* If this is a scalar select that is part of an expression, then
    ** store the results in the appropriate memory cell and break out
................................................................................
      pSub->pOrderBy = 0;
    }
    pWhere = sqlite3ExprDup(db, pSub->pWhere, 0);
    if( subqueryIsAgg ){
      assert( pParent->pHaving==0 );
      pParent->pHaving = pParent->pWhere;
      pParent->pWhere = pWhere;
      pParent->pHaving = sqlite3ExprAnd(db, pParent->pHaving, 
                                  sqlite3ExprDup(db, pSub->pHaving, 0));

      assert( pParent->pGroupBy==0 );
      pParent->pGroupBy = sqlite3ExprListDup(db, pSub->pGroupBy, 0);
    }else{
      pParent->pWhere = sqlite3ExprAnd(db, pParent->pWhere, pWhere);
    }
    substSelect(db, pParent, iParent, pSub->pEList, 0);
  
    /* The flattened query is distinct if either the inner or the
    ** outer query is distinct. 
    */
    pParent->selFlags |= pSub->selFlags & SF_Distinct;
................................................................................
          if( db->mallocFailed ) break;
          if( pSub==0 || (pSub->selFlags & SF_NestedFrom)==0 ){
            pSub = 0;
            if( zTName && sqlite3StrICmp(zTName, zTabName)!=0 ){
              continue;
            }
            iDb = sqlite3SchemaToIndex(db, pTab->pSchema);
            zSchemaName = iDb>=0 ? db->aDb[iDb].zName : "*";
          }
          for(j=0; j<pTab->nCol; j++){
            char *zName = pTab->aCol[j].zName;
            char *zColname;  /* The computed column name */
            char *zToFree;   /* Malloced string that needs to be freed */
            Token sColname;  /* Computed column name as a token */

................................................................................
#if SELECTTRACE_ENABLED
  if( sqlite3SelectTrace & 0x100 ){
    SELECTTRACE(0x100,pParse,p, ("after name resolution:\n"));
    sqlite3TreeViewSelect(0, p, 0);
  }
#endif


  /* If writing to memory or generating a set
  ** only a single column may be output.
  */
#ifndef SQLITE_OMIT_SUBQUERY
  if( checkForMultiColumnSelectError(pParse, pDest, p->pEList->nExpr) ){
    goto select_end;
  }
#endif

  /* Try to flatten subqueries in the FROM clause up into the main query
  */
#if !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW)
  for(i=0; !p->pPrior && i<pTabList->nSrc; i++){
    struct SrcList_item *pItem = &pTabList->a[i];
    Select *pSub = pItem->pSelect;
    int isAggSub;
................................................................................
      pItem->regReturn = ++pParse->nMem;
      topAddr = sqlite3VdbeAddOp2(v, OP_Integer, 0, pItem->regReturn);
      pItem->addrFillSub = topAddr+1;
      if( pItem->fg.isCorrelated==0 ){
        /* If the subquery is not correlated and if we are not inside of
        ** a trigger, then we only need to compute the value of the subquery
        ** once. */
        onceAddr = sqlite3CodeOnce(pParse); VdbeCoverage(v);
        VdbeComment((v, "materialize \"%s\"", pItem->pTab->zName));
      }else{
        VdbeNoopComment((v, "materialize \"%s\"", pItem->pTab->zName));
      }
      sqlite3SelectDestInit(&dest, SRT_EphemTab, pItem->iCursor);
      explainSetInteger(pItem->iSelectId, (u8)pParse->iNextSelectId);
      sqlite3Select(pParse, pSub, &dest);
................................................................................
** at the conclusion of the call.
**
** The result that is written to ***pazResult is held in memory obtained
** from malloc().  But the caller cannot free this memory directly.  
** Instead, the entire table should be passed to sqlite3_free_table() when
** the calling procedure is finished using it.
*/
SQLITE_API int SQLITE_APICALL sqlite3_get_table(
  sqlite3 *db,                /* The database on which the SQL executes */
  const char *zSql,           /* The SQL to be executed */
  char ***pazResult,          /* Write the result table here */
  int *pnRow,                 /* Write the number of rows in the result here */
  int *pnColumn,              /* Write the number of columns of result here */
  char **pzErrMsg             /* Write error messages here */
){
................................................................................
  if( pnRow ) *pnRow = res.nRow;
  return rc;
}

/*
** This routine frees the space the sqlite3_get_table() malloced.
*/
SQLITE_API void SQLITE_APICALL sqlite3_free_table(
  char **azResult            /* Result returned from sqlite3_get_table() */
){
  if( azResult ){
    int i, n;
    azResult--;
    assert( azResult!=0 );
    n = SQLITE_PTR_TO_INT(azResult[0]);
................................................................................
  Trigger *pTrigger = 0;  /* The new trigger */
  Table *pTab;            /* Table that the trigger fires off of */
  char *zName = 0;        /* Name of the trigger */
  sqlite3 *db = pParse->db;  /* The database connection */
  int iDb;                /* The database to store the trigger in */
  Token *pName;           /* The unqualified db name */
  DbFixer sFix;           /* State vector for the DB fixer */
  int iTabDb;             /* Index of the database holding pTab */

  assert( pName1!=0 );   /* pName1->z might be NULL, but not pName1 itself */
  assert( pName2!=0 );
  assert( op==TK_INSERT || op==TK_UPDATE || op==TK_DELETE );
  assert( op>0 && op<0xff );
  if( isTemp ){
    /* If TEMP was specified, then the trigger name may not be qualified. */
................................................................................
    goto trigger_cleanup;
  }
  if( !pTab->pSelect && tr_tm==TK_INSTEAD ){
    sqlite3ErrorMsg(pParse, "cannot create INSTEAD OF"
        " trigger on table: %S", pTableName, 0);
    goto trigger_cleanup;
  }
  iTabDb = sqlite3SchemaToIndex(db, pTab->pSchema);

#ifndef SQLITE_OMIT_AUTHORIZATION
  {

    int code = SQLITE_CREATE_TRIGGER;
    const char *zDb = db->aDb[iTabDb].zName;
    const char *zDbTrig = isTemp ? db->aDb[1].zName : zDb;
    if( iTabDb==1 || isTemp ) code = SQLITE_CREATE_TEMP_TRIGGER;
    if( sqlite3AuthCheck(pParse, code, zName, pTab->zName, zDbTrig) ){
      goto trigger_cleanup;
    }
    if( sqlite3AuthCheck(pParse, SQLITE_INSERT, SCHEMA_TABLE(iTabDb),0,zDb)){
      goto trigger_cleanup;
    }
................................................................................
    /* Make an entry in the sqlite_master table */
    v = sqlite3GetVdbe(pParse);
    if( v==0 ) goto triggerfinish_cleanup;
    sqlite3BeginWriteOperation(pParse, 0, iDb);
    z = sqlite3DbStrNDup(db, (char*)pAll->z, pAll->n);
    sqlite3NestedParse(pParse,
       "INSERT INTO %Q.%s VALUES('trigger',%Q,%Q,0,'CREATE TRIGGER %q')",
       db->aDb[iDb].zName, SCHEMA_TABLE(iDb), zName,
       pTrig->table, z);
    sqlite3DbFree(db, z);
    sqlite3ChangeCookie(pParse, iDb);
    sqlite3VdbeAddParseSchemaOp(v, iDb,
        sqlite3MPrintf(db, "type='trigger' AND name='%q'", zName));
  }

................................................................................

  assert( pName->nSrc==1 );
  zDb = pName->a[0].zDatabase;
  zName = pName->a[0].zName;
  assert( zDb!=0 || sqlite3BtreeHoldsAllMutexes(db) );
  for(i=OMIT_TEMPDB; i<db->nDb; i++){
    int j = (i<2) ? i^1 : i;  /* Search TEMP before MAIN */
    if( zDb && sqlite3StrICmp(db->aDb[j].zName, zDb) ) continue;
    assert( sqlite3SchemaMutexHeld(db, j, 0) );
    pTrigger = sqlite3HashFind(&(db->aDb[j].pSchema->trigHash), zName);
    if( pTrigger ) break;
  }
  if( !pTrigger ){
    if( !noErr ){
      sqlite3ErrorMsg(pParse, "no such trigger: %S", pName, 0);
................................................................................
  assert( iDb>=0 && iDb<db->nDb );
  pTable = tableOfTrigger(pTrigger);
  assert( pTable );
  assert( pTable->pSchema==pTrigger->pSchema || iDb==1 );
#ifndef SQLITE_OMIT_AUTHORIZATION
  {
    int code = SQLITE_DROP_TRIGGER;
    const char *zDb = db->aDb[iDb].zName;
    const char *zTab = SCHEMA_TABLE(iDb);
    if( iDb==1 ) code = SQLITE_DROP_TEMP_TRIGGER;
    if( sqlite3AuthCheck(pParse, code, pTrigger->zName, pTable->zName, zDb) ||
      sqlite3AuthCheck(pParse, SQLITE_DELETE, zTab, 0, zDb) ){
      return;
    }
  }
................................................................................

  /* Generate code to destroy the database record of the trigger.
  */
  assert( pTable!=0 );
  if( (v = sqlite3GetVdbe(pParse))!=0 ){
    sqlite3NestedParse(pParse,
       "DELETE FROM %Q.%s WHERE name=%Q AND type='trigger'",
       db->aDb[iDb].zName, SCHEMA_TABLE(iDb), pTrigger->zName
    );
    sqlite3ChangeCookie(pParse, iDb);
    sqlite3VdbeAddOp4(v, OP_DropTrigger, iDb, 0, 0, pTrigger->zName, 0);
  }
}

/*
................................................................................

  pSrc = sqlite3SrcListAppend(db, 0, 0, 0);
  if( pSrc ){
    assert( pSrc->nSrc>0 );
    pSrc->a[pSrc->nSrc-1].zName = sqlite3DbStrDup(db, pStep->zTarget);
    iDb = sqlite3SchemaToIndex(db, pStep->pTrig->pSchema);
    if( iDb==0 || iDb>=2 ){

      assert( iDb<db->nDb );

      pSrc->a[pSrc->nSrc-1].zDatabase = sqlite3DbStrDup(db, db->aDb[iDb].zName);
    }
  }
  return pSrc;
}

/*
** Generate VDBE code for the statements inside the body of a single 
................................................................................

    transferParseError(pParse, pSubParse);
    if( db->mallocFailed==0 ){
      pProgram->aOp = sqlite3VdbeTakeOpArray(v, &pProgram->nOp, &pTop->nMaxArg);
    }
    pProgram->nMem = pSubParse->nMem;
    pProgram->nCsr = pSubParse->nTab;
    pProgram->nOnce = pSubParse->nOnce;
    pProgram->token = (void *)pTrigger;
    pPrg->aColmask[0] = pSubParse->oldmask;
    pPrg->aColmask[1] = pSubParse->newmask;
    sqlite3VdbeDelete(v);
  }

  assert( !pSubParse->pAinc       && !pSubParse->pZombieTab );
................................................................................
      }
    }
#ifndef SQLITE_OMIT_AUTHORIZATION
    {
      int rc;
      rc = sqlite3AuthCheck(pParse, SQLITE_UPDATE, pTab->zName,
                            j<0 ? "ROWID" : pTab->aCol[j].zName,
                            db->aDb[iDb].zName);
      if( rc==SQLITE_DENY ){
        goto update_cleanup;
      }else if( rc==SQLITE_IGNORE ){
        aXRef[j] = -1;
      }
    }
#endif
................................................................................
** Most of the code in this file may be omitted by defining the
** SQLITE_OMIT_VACUUM macro.
*/
/* #include "sqliteInt.h" */
/* #include "vdbeInt.h" */

#if !defined(SQLITE_OMIT_VACUUM) && !defined(SQLITE_OMIT_ATTACH)
/*
** Finalize a prepared statement.  If there was an error, store the
** text of the error message in *pzErrMsg.  Return the result code.
*/
static int vacuumFinalize(sqlite3 *db, sqlite3_stmt *pStmt, char **pzErrMsg){
  int rc;
  rc = sqlite3VdbeFinalize((Vdbe*)pStmt);
  if( rc ){
    sqlite3SetString(pzErrMsg, db, sqlite3_errmsg(db));
  }
  return rc;
}

/*
** Execute zSql on database db. Return an error code.
*/
static int execSql(sqlite3 *db, char **pzErrMsg, const char *zSql){
  sqlite3_stmt *pStmt;
  VVA_ONLY( int rc; )
  if( !zSql ){
    return SQLITE_NOMEM_BKPT;
  }
  if( SQLITE_OK!=sqlite3_prepare(db, zSql, -1, &pStmt, 0) ){
    sqlite3SetString(pzErrMsg, db, sqlite3_errmsg(db));
    return sqlite3_errcode(db);
  }
  VVA_ONLY( rc = ) sqlite3_step(pStmt);
  assert( rc!=SQLITE_ROW || (db->flags&SQLITE_CountRows) );
  return vacuumFinalize(db, pStmt, pzErrMsg);
}

/*
** Execute zSql on database db. The statement returns exactly
** one column. Execute this as SQL on the same database.
*/
static int execExecSql(sqlite3 *db, char **pzErrMsg, const char *zSql){
  sqlite3_stmt *pStmt;
  int rc;

  rc = sqlite3_prepare(db, zSql, -1, &pStmt, 0);
  if( rc!=SQLITE_OK ) return rc;

  while( SQLITE_ROW==sqlite3_step(pStmt) ){
    rc = execSql(db, pzErrMsg, (char*)sqlite3_column_text(pStmt, 0));
    if( rc!=SQLITE_OK ){
      vacuumFinalize(db, pStmt, pzErrMsg);
      return rc;
    }
  }

  return vacuumFinalize(db, pStmt, pzErrMsg);
}

/*
** The VACUUM command is used to clean up the database,
** collapse free space, etc.  It is modelled after the VACUUM command
** in PostgreSQL.  The VACUUM command works as follows:
**
................................................................................
** the copy of step (3) were replaced by deleting the original database
** and renaming the transient database as the original.  But that will
** not work if other processes are attached to the original database.
** And a power loss in between deleting the original and renaming the
** transient would cause the database file to appear to be deleted
** following reboot.
*/
SQLITE_PRIVATE void sqlite3Vacuum(Parse *pParse){
  Vdbe *v = sqlite3GetVdbe(pParse);
  if( v ){

    sqlite3VdbeAddOp2(v, OP_Vacuum, 0, 0);
    sqlite3VdbeUsesBtree(v, 0);
  }
  return;
}

/*
** This routine implements the OP_Vacuum opcode of the VDBE.
*/
SQLITE_PRIVATE int sqlite3RunVacuum(char **pzErrMsg, sqlite3 *db){
  int rc = SQLITE_OK;     /* Return code from service routines */
  Btree *pMain;           /* The database being vacuumed */
  Btree *pTemp;           /* The temporary database we vacuum into */
  char *zSql = 0;         /* SQL statements */
  int saved_flags;        /* Saved value of the db->flags */
  int saved_nChange;      /* Saved value of db->nChange */
  int saved_nTotalChange; /* Saved value of db->nTotalChange */
  u8 saved_mTrace;        /* Saved trace settings */
  Db *pDb = 0;            /* Database to detach at end of vacuum */
  int isMemDb;            /* True if vacuuming a :memory: database */
  int nRes;               /* Bytes of reserved space at the end of each page */
  int nDb;                /* Number of attached databases */


  if( !db->autoCommit ){
    sqlite3SetString(pzErrMsg, db, "cannot VACUUM from within a transaction");
    return SQLITE_ERROR;
  }
  if( db->nVdbeActive>1 ){
    sqlite3SetString(pzErrMsg, db,"cannot VACUUM - SQL statements in progress");
................................................................................
  /* Save the current value of the database flags so that it can be 
  ** restored before returning. Then set the writable-schema flag, and
  ** disable CHECK and foreign key constraints.  */
  saved_flags = db->flags;
  saved_nChange = db->nChange;
  saved_nTotalChange = db->nTotalChange;
  saved_mTrace = db->mTrace;
  db->flags |= SQLITE_WriteSchema | SQLITE_IgnoreChecks | SQLITE_PreferBuiltin;

  db->flags &= ~(SQLITE_ForeignKeys | SQLITE_ReverseOrder);
  db->mTrace = 0;


  pMain = db->aDb[0].pBt;
  isMemDb = sqlite3PagerIsMemdb(sqlite3BtreePager(pMain));

  /* Attach the temporary database as 'vacuum_db'. The synchronous pragma
  ** can be set to 'off' for this file, as it is not recovered if a crash
  ** occurs anyway. The integrity of the database is maintained by a
  ** (possibly synchronous) transaction opened on the main database before
  ** sqlite3BtreeCopyFile() is called.
................................................................................
  ** that actually made the VACUUM run slower.  Very little journalling
  ** actually occurs when doing a vacuum since the vacuum_db is initially
  ** empty.  Only the journal header is written.  Apparently it takes more
  ** time to parse and run the PRAGMA to turn journalling off than it does
  ** to write the journal header file.
  */
  nDb = db->nDb;
  if( sqlite3TempInMemory(db) ){
    zSql = "ATTACH ':memory:' AS vacuum_db;";
  }else{
    zSql = "ATTACH '' AS vacuum_db;";
  }
  rc = execSql(db, pzErrMsg, zSql);
  if( db->nDb>nDb ){


    pDb = &db->aDb[db->nDb-1];
    assert( strcmp(pDb->zName,"vacuum_db")==0 );
  }
  if( rc!=SQLITE_OK ) goto end_of_vacuum;
  pTemp = db->aDb[db->nDb-1].pBt;


  /* The call to execSql() to attach the temp database has left the file
  ** locked (as there was more than one active statement when the transaction
  ** to read the schema was concluded. Unlock it here so that this doesn't
  ** cause problems for the call to BtreeSetPageSize() below.  */
  sqlite3BtreeCommit(pTemp);

................................................................................
    int nKey;
    char *zKey;
    sqlite3CodecGetKey(db, 0, (void**)&zKey, &nKey);
    if( nKey ) db->nextPagesize = 0;
  }
#endif

  sqlite3BtreeSetCacheSize(pTemp, db->aDb[0].pSchema->cache_size);
  sqlite3BtreeSetSpillSize(pTemp, sqlite3BtreeSetSpillSize(pMain,0));
  rc = execSql(db, pzErrMsg, "PRAGMA vacuum_db.synchronous=OFF");
  if( rc!=SQLITE_OK ) goto end_of_vacuum;

  /* Begin a transaction and take an exclusive lock on the main database
  ** file. This is done before the sqlite3BtreeGetPageSize(pMain) call below,
  ** to ensure that we do not try to change the page-size on a WAL database.
  */
  rc = execSql(db, pzErrMsg, "BEGIN;");
  if( rc!=SQLITE_OK ) goto end_of_vacuum;
  rc = sqlite3BtreeBeginTrans(pMain, 2);
  if( rc!=SQLITE_OK ) goto end_of_vacuum;

  /* Do not attempt to change the page size for a WAL database */
  if( sqlite3PagerGetJournalMode(sqlite3BtreePager(pMain))
                                               ==PAGER_JOURNALMODE_WAL ){
................................................................................
  sqlite3BtreeSetAutoVacuum(pTemp, db->nextAutovac>=0 ? db->nextAutovac :
                                           sqlite3BtreeGetAutoVacuum(pMain));
#endif

  /* Query the schema of the main database. Create a mirror schema
  ** in the temporary database.
  */

  rc = execExecSql(db, pzErrMsg,
      "SELECT 'CREATE TABLE vacuum_db.' || substr(sql,14) "
      "  FROM sqlite_master WHERE type='table' AND name!='sqlite_sequence'"

      "   AND coalesce(rootpage,1)>0"

  );
  if( rc!=SQLITE_OK ) goto end_of_vacuum;
  rc = execExecSql(db, pzErrMsg,
      "SELECT 'CREATE INDEX vacuum_db.' || substr(sql,14)"
      "  FROM sqlite_master WHERE sql LIKE 'CREATE INDEX %' ");
  if( rc!=SQLITE_OK ) goto end_of_vacuum;
  rc = execExecSql(db, pzErrMsg,
      "SELECT 'CREATE UNIQUE INDEX vacuum_db.' || substr(sql,21) "
      "  FROM sqlite_master WHERE sql LIKE 'CREATE UNIQUE INDEX %'");
  if( rc!=SQLITE_OK ) goto end_of_vacuum;


  /* Loop through the tables in the main database. For each, do
  ** an "INSERT INTO vacuum_db.xxx SELECT * FROM main.xxx;" to copy
  ** the contents to the temporary database.
  */
  assert( (db->flags & SQLITE_Vacuum)==0 );
  db->flags |= SQLITE_Vacuum;
  rc = execExecSql(db, pzErrMsg,
      "SELECT 'INSERT INTO vacuum_db.' || quote(name) "
      "|| ' SELECT * FROM main.' || quote(name) || ';'"

      "FROM main.sqlite_master "
      "WHERE type = 'table' AND name!='sqlite_sequence' "
      "  AND coalesce(rootpage,1)>0"

  );
  assert( (db->flags & SQLITE_Vacuum)!=0 );
  db->flags &= ~SQLITE_Vacuum;
  if( rc!=SQLITE_OK ) goto end_of_vacuum;

  /* Copy over the sequence table
  */
  rc = execExecSql(db, pzErrMsg,
      "SELECT 'DELETE FROM vacuum_db.' || quote(name) || ';' "
      "FROM vacuum_db.sqlite_master WHERE name='sqlite_sequence' "
  );
  if( rc!=SQLITE_OK ) goto end_of_vacuum;
  rc = execExecSql(db, pzErrMsg,
      "SELECT 'INSERT INTO vacuum_db.' || quote(name) "
      "|| ' SELECT * FROM main.' || quote(name) || ';' "
      "FROM vacuum_db.sqlite_master WHERE name=='sqlite_sequence';"
  );
  if( rc!=SQLITE_OK ) goto end_of_vacuum;


  /* Copy the triggers, views, and virtual tables from the main database
  ** over to the temporary database.  None of these objects has any
  ** associated storage, so all we have to do is copy their entries
  ** from the SQLITE_MASTER table.
  */
  rc = execSql(db, pzErrMsg,
      "INSERT INTO vacuum_db.sqlite_master "
      "  SELECT type, name, tbl_name, rootpage, sql"
      "    FROM main.sqlite_master"
      "   WHERE type='view' OR type='trigger'"
      "      OR (type='table' AND rootpage=0)"
  );
  if( rc ) goto end_of_vacuum;

  /* At this point, there is a write transaction open on both the 
  ** vacuum database and the main database. Assuming no error occurs,
  ** both transactions are closed by this block - the main database
  ** transaction by sqlite3BtreeCopyFile() and the other by an explicit
................................................................................
  }

  assert( rc==SQLITE_OK );
  rc = sqlite3BtreeSetPageSize(pMain, sqlite3BtreeGetPageSize(pTemp), nRes,1);

end_of_vacuum:
  /* Restore the original value of db->flags */

  db->flags = saved_flags;
  db->nChange = saved_nChange;
  db->nTotalChange = saved_nTotalChange;
  db->mTrace = saved_mTrace;
  sqlite3BtreeSetPageSize(pMain, -1, -1, 1);

  /* Currently there is an SQL level transaction open on the vacuum
................................................................................
  return rc;
}


/*
** External API function used to create a new virtual-table module.
*/
SQLITE_API int SQLITE_APICALL sqlite3_create_module(
  sqlite3 *db,                    /* Database in which module is registered */
  const char *zName,              /* Name assigned to this module */
  const sqlite3_module *pModule,  /* The definition of the module */
  void *pAux                      /* Context pointer for xCreate/xConnect */
){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) || zName==0 ) return SQLITE_MISUSE_BKPT;
................................................................................
#endif
  return createModule(db, zName, pModule, pAux, 0);
}

/*
** External API function used to create a new virtual-table module.
*/
SQLITE_API int SQLITE_APICALL sqlite3_create_module_v2(
  sqlite3 *db,                    /* Database in which module is registered */
  const char *zName,              /* Name assigned to this module */
  const sqlite3_module *pModule,  /* The definition of the module */
  void *pAux,                     /* Context pointer for xCreate/xConnect */
  void (*xDestroy)(void *)        /* Module destructor function */
){
#ifdef SQLITE_ENABLE_API_ARMOR
................................................................................
  /* Creating a virtual table invokes the authorization callback twice.
  ** The first invocation, to obtain permission to INSERT a row into the
  ** sqlite_master table, has already been made by sqlite3StartTable().
  ** The second call, to obtain permission to create the table, is made now.
  */
  if( pTable->azModuleArg ){
    sqlite3AuthCheck(pParse, SQLITE_CREATE_VTABLE, pTable->zName, 
            pTable->azModuleArg[0], pParse->db->aDb[iDb].zName);
  }
#endif
}

/*
** This routine takes the module argument that has been accumulating
** in pParse->zArg[] and appends it to the list of arguments on the
................................................................................
    ** by sqlite3StartTable().
    */
    iDb = sqlite3SchemaToIndex(db, pTab->pSchema);
    sqlite3NestedParse(pParse,
      "UPDATE %Q.%s "
         "SET type='table', name=%Q, tbl_name=%Q, rootpage=0, sql=%Q "
       "WHERE rowid=#%d",
      db->aDb[iDb].zName, SCHEMA_TABLE(iDb),
      pTab->zName,
      pTab->zName,
      zStmt,
      pParse->regRowid
    );
    sqlite3DbFree(db, zStmt);
    v = sqlite3GetVdbe(pParse);
................................................................................
    sqlite3DbFree(db, zModuleName);
    return SQLITE_NOMEM_BKPT;
  }
  pVTable->db = db;
  pVTable->pMod = pMod;

  iDb = sqlite3SchemaToIndex(db, pTab->pSchema);
  pTab->azModuleArg[1] = db->aDb[iDb].zName;

  /* Invoke the virtual table constructor */
  assert( &db->pVtabCtx );
  assert( xConstruct );
  sCtx.pTab = pTab;
  sCtx.pVTable = pVTable;
  sCtx.pPrior = db->pVtabCtx;
................................................................................
  sqlite3VtabLock(pVTab);
}

/*
** This function is invoked by the vdbe to call the xCreate method
** of the virtual table named zTab in database iDb. 
**
** If an error occurs, *pzErr is set to point an an English language
** description of the error and an SQLITE_XXX error code is returned.
** In this case the caller must call sqlite3DbFree(db, ) on *pzErr.
*/
SQLITE_PRIVATE int sqlite3VtabCallCreate(sqlite3 *db, int iDb, const char *zTab, char **pzErr){
  int rc = SQLITE_OK;
  Table *pTab;
  Module *pMod;
  const char *zMod;

  pTab = sqlite3FindTable(db, zTab, db->aDb[iDb].zName);
  assert( pTab && (pTab->tabFlags & TF_Virtual)!=0 && !pTab->pVTable );

  /* Locate the required virtual table module */
  zMod = pTab->azModuleArg[0];
  pMod = (Module*)sqlite3HashFind(&db->aModule, zMod);

  /* If the module has been registered and includes a Create method, 
................................................................................
}

/*
** This function is used to set the schema of a virtual table.  It is only
** valid to call this function from within the xCreate() or xConnect() of a
** virtual table module.
*/
SQLITE_API int SQLITE_APICALL sqlite3_declare_vtab(sqlite3 *db, const char *zCreateTable){
  VtabCtx *pCtx;
  Parse *pParse;
  int rc = SQLITE_OK;
  Table *pTab;
  char *zErr = 0;

#ifdef SQLITE_ENABLE_API_ARMOR
................................................................................
**
** This call is a no-op if zTab is not a virtual table.
*/
SQLITE_PRIVATE int sqlite3VtabCallDestroy(sqlite3 *db, int iDb, const char *zTab){
  int rc = SQLITE_OK;
  Table *pTab;

  pTab = sqlite3FindTable(db, zTab, db->aDb[iDb].zName);
  if( ALWAYS(pTab!=0 && pTab->pVTable!=0) ){
    VTable *p;
    int (*xDestroy)(sqlite3_vtab *);
    for(p=pTab->pVTable; p; p=p->pNext){
      assert( p->pVtab );
      if( p->pVtab->nRef>0 ){
        return SQLITE_LOCKED;
      }
................................................................................
    ** sqlite3.aVTrans[] array. */
    rc = growVTrans(db);
    if( rc==SQLITE_OK ){
      rc = pModule->xBegin(pVTab->pVtab);
      if( rc==SQLITE_OK ){
        int iSvpt = db->nStatement + db->nSavepoint;
        addToVTrans(db, pVTab);
        if( iSvpt ) rc = sqlite3VtabSavepoint(db, SAVEPOINT_BEGIN, iSvpt-1);



      }
    }
  }
  return rc;
}

/*
................................................................................
/*
** Return the ON CONFLICT resolution mode in effect for the virtual
** table update operation currently in progress.
**
** The results of this routine are undefined unless it is called from
** within an xUpdate method.
*/
SQLITE_API int SQLITE_APICALL sqlite3_vtab_on_conflict(sqlite3 *db){
  static const unsigned char aMap[] = { 
    SQLITE_ROLLBACK, SQLITE_ABORT, SQLITE_FAIL, SQLITE_IGNORE, SQLITE_REPLACE 
  };
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
#endif
  assert( OE_Rollback==1 && OE_Abort==2 && OE_Fail==3 );
................................................................................
}

/*
** Call from within the xCreate() or xConnect() methods to provide 
** the SQLite core with additional information about the behavior
** of the virtual table being implemented.
*/
SQLITE_API int SQLITE_CDECL sqlite3_vtab_config(sqlite3 *db, int op, ...){
  va_list ap;
  int rc = SQLITE_OK;

#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
#endif
  sqlite3_mutex_enter(db->mutex);
................................................................................
  u8 iSortIdx;          /* Sorting index number.  0==None */
  LogEst rSetup;        /* One-time setup cost (ex: create transient index) */
  LogEst rRun;          /* Cost of running each loop */
  LogEst nOut;          /* Estimated number of output rows */
  union {
    struct {               /* Information for internal btree tables */
      u16 nEq;               /* Number of equality constraints */


      Index *pIndex;         /* Index used, or NULL */
    } btree;
    struct {               /* Information for virtual tables */
      int idxNum;            /* Index number */
      u8 needFree;           /* True if sqlite3_free(idxStr) is needed */
      i8 isOrdered;          /* True if satisfies ORDER BY */
      u16 omitMask;          /* Terms that may be omitted */
................................................................................
**
** The number of terms in a join is limited by the number of bits
** in prereqRight and prereqAll.  The default is 64 bits, hence SQLite
** is only able to process joins with 64 or fewer tables.
*/
struct WhereTerm {
  Expr *pExpr;            /* Pointer to the subexpression that is this term */






  int iParent;            /* Disable pWC->a[iParent] when this term disabled */
  int leftCursor;         /* Cursor number of X in "X <op> <expr>" */

  union {
    int leftColumn;         /* Column number of X in "X <op> <expr>" */
    WhereOrInfo *pOrInfo;   /* Extra information if (eOperator & WO_OR)!=0 */
    WhereAndInfo *pAndInfo; /* Extra information if (eOperator& WO_AND)!=0 */
  } u;
  LogEst truthProb;       /* Probability of truth for this expression */
  u16 eOperator;          /* A WO_xx value describing <op> */
  u16 wtFlags;            /* TERM_xxx bit flags.  See below */
  u8 nChild;              /* Number of children that must disable us */
  u8 eMatchOp;            /* Op for vtab MATCH/LIKE/GLOB/REGEXP terms */
  WhereClause *pWC;       /* The clause this term is part of */
  Bitmask prereqRight;    /* Bitmask of tables used by pExpr->pRight */
  Bitmask prereqAll;      /* Bitmask of tables referenced by pExpr */
};

/*
** Allowed values of WhereTerm.wtFlags
*/
................................................................................
** planner.
*/
struct WhereInfo {
  Parse *pParse;            /* Parsing and code generating context */
  SrcList *pTabList;        /* List of tables in the join */
  ExprList *pOrderBy;       /* The ORDER BY clause or NULL */
  ExprList *pDistinctSet;   /* DISTINCT over all these values */
  WhereLoop *pLoops;        /* List of all WhereLoop objects */
  Bitmask revMask;          /* Mask of ORDER BY terms that need reversing */
  LogEst nRowOut;           /* Estimated number of output rows */
  LogEst iLimit;            /* LIMIT if wctrlFlags has WHERE_USE_LIMIT */




  u16 wctrlFlags;           /* Flags originally passed to sqlite3WhereBegin() */

  i8 nOBSat;                /* Number of ORDER BY terms satisfied by indices */
  u8 sorted;                /* True if really sorted (not just grouped) */
  u8 eOnePass;              /* ONEPASS_OFF, or _SINGLE, or _MULTI */
  u8 untestedTerms;         /* Not all WHERE terms resolved by outer loop */
  u8 eDistinct;             /* One of the WHERE_DISTINCT_* values */
  u8 nLevel;                /* Number of nested loop */
  u8 bOrderedInnerLoop;     /* True if only the inner-most loop is ordered */
  int iTop;                 /* The very beginning of the WHERE loop */

  int iContinue;            /* Jump here to continue with next record */
  int iBreak;               /* Jump here to break out of the loop */
  int savedNQueryLoop;      /* pParse->nQueryLoop outside the WHERE loop */
  int aiCurOnePass[2];      /* OP_OpenWrite cursors for the ONEPASS opt */
  WhereMaskSet sMaskSet;    /* Map cursor numbers to bitmasks */
  WhereClause sWC;          /* Decomposition of the WHERE clause */
  WhereLevel a[1];          /* Information about each nest loop in WHERE */
};

/*
** Private interfaces - callable only by other where.c routines.
**
** where.c:
................................................................................
#define WHERE_UNQ_WANTED   0x00010000  /* WHERE_ONEROW would have been helpful*/
#define WHERE_PARTIALIDX   0x00020000  /* The automatic index is partial */

/************** End of whereInt.h ********************************************/
/************** Continuing where we left off in wherecode.c ******************/

#ifndef SQLITE_OMIT_EXPLAIN











/*
** This routine is a helper for explainIndexRange() below
**
** pStr holds the text of an expression that we are building up one term
** at a time.  This routine adds a new term to the end of the expression.
** Terms are separated by AND so add the "AND" text for second and subsequent
** terms only.
*/
static void explainAppendTerm(
  StrAccum *pStr,             /* The text expression being built */
  int iTerm,                  /* Index of this term.  First is zero */
  const char *zColumn,        /* Name of the column */
  const char *zOp             /* Name of the operator */
){
  if( iTerm ) sqlite3StrAccumAppend(pStr, " AND ", 5);
  sqlite3StrAccumAppendAll(pStr, zColumn);
  sqlite3StrAccumAppend(pStr, zOp, 1);
  sqlite3StrAccumAppend(pStr, "?", 1);
}

/*
** Return the name of the i-th column of the pIdx index.
*/
static const char *explainIndexColumnName(Index *pIdx, int i){
  i = pIdx->aiColumn[i];
  if( i==XN_EXPR ) return "<expr>";
  if( i==XN_ROWID ) return "rowid";
  return pIdx->pTable->aCol[i].zName;








}

/*
** Argument pLevel describes a strategy for scanning table pTab. This 
** function appends text to pStr that describes the subset of table
** rows scanned by the strategy in the form of an SQL expression.
**
................................................................................
    const char *z = explainIndexColumnName(pIndex, i);
    if( i ) sqlite3StrAccumAppend(pStr, " AND ", 5);
    sqlite3XPrintf(pStr, i>=nSkip ? "%s=?" : "ANY(%s)", z);
  }

  j = i;
  if( pLoop->wsFlags&WHERE_BTM_LIMIT ){
    const char *z = explainIndexColumnName(pIndex, i);
    explainAppendTerm(pStr, i++, z, ">");

  }
  if( pLoop->wsFlags&WHERE_TOP_LIMIT ){
    const char *z = explainIndexColumnName(pIndex, j);
    explainAppendTerm(pStr, i, z, "<");
  }
  sqlite3StrAccumAppend(pStr, ")", 1);
}

/*
** This function is a no-op unless currently processing an EXPLAIN QUERY PLAN
** command, or if either SQLITE_DEBUG or SQLITE_ENABLE_STMT_SCANSTATUS was
................................................................................
** term was originally TERM_LIKE, then the parent gets TERM_LIKECOND instead.
** The TERM_LIKECOND marking indicates that the term should be coded inside
** a conditional such that is only evaluated on the second pass of a
** LIKE-optimization loop, when scanning BLOBs instead of strings.
*/
static void disableTerm(WhereLevel *pLevel, WhereTerm *pTerm){
  int nLoop = 0;
  while( pTerm
      && (pTerm->wtFlags & TERM_CODED)==0
      && (pLevel->iLeftJoin==0 || ExprHasProperty(pTerm->pExpr, EP_FromJoin))
      && (pLevel->notReady & pTerm->prereqAll)==0
  ){
    if( nLoop && (pTerm->wtFlags & TERM_LIKE)!=0 ){
      pTerm->wtFlags |= TERM_LIKECOND;
    }else{
................................................................................
  /* Code the OP_Affinity opcode if there is anything left to do. */
  if( n>0 ){
    sqlite3VdbeAddOp4(v, OP_Affinity, base, n, 0, zAff, n);
    sqlite3ExprCacheAffinityChange(pParse, base, n);
  }
}




























/*
** Generate code for a single equality term of the WHERE clause.  An equality
** term can be either X=expr or X IN (...).   pTerm is the term to be 
** coded.
**
** The current value for the constraint is left in register iReg.




**
** For a constraint of the form X=expr, the expression is evaluated and its
** result is left on the stack.  For constraints of the form X IN (...)
** this routine sets up a loop that will iterate over all values of X.
*/
static int codeEqualityTerm(
  Parse *pParse,      /* The parsing context */
  WhereTerm *pTerm,   /* The term of the WHERE clause to be coded */
  WhereLevel *pLevel, /* The level of the FROM clause we are working on */
  int iEq,            /* Index of the equality term within this level */
................................................................................
  int bRev,           /* True for reverse-order IN operations */
  int iTarget         /* Attempt to leave results in this register */
){
  Expr *pX = pTerm->pExpr;
  Vdbe *v = pParse->pVdbe;
  int iReg;                  /* Register holding results */


  assert( iTarget>0 );
  if( pX->op==TK_EQ || pX->op==TK_IS ){
    iReg = sqlite3ExprCodeTarget(pParse, pX->pRight, iTarget);
  }else if( pX->op==TK_ISNULL ){
    iReg = iTarget;
    sqlite3VdbeAddOp2(v, OP_Null, 0, iReg);
#ifndef SQLITE_OMIT_SUBQUERY
  }else{
    int eType;
    int iTab;
    struct InLoop *pIn;
    WhereLoop *pLoop = pLevel->pWLoop;




    if( (pLoop->wsFlags & WHERE_VIRTUALTABLE)==0
      && pLoop->u.btree.pIndex!=0
      && pLoop->u.btree.pIndex->aSortOrder[iEq]
    ){
      testcase( iEq==0 );
      testcase( bRev );
      bRev = !bRev;
    }
    assert( pX->op==TK_IN );
    iReg = iTarget;












    eType = sqlite3FindInIndex(pParse, pX, IN_INDEX_LOOP, 0);
























































    if( eType==IN_INDEX_INDEX_DESC ){
      testcase( bRev );
      bRev = !bRev;
    }
    iTab = pX->iTable;
    sqlite3VdbeAddOp2(v, bRev ? OP_Last : OP_Rewind, iTab, 0);
    VdbeCoverageIf(v, bRev);
    VdbeCoverageIf(v, !bRev);
    assert( (pLoop->wsFlags & WHERE_MULTI_OR)==0 );

    pLoop->wsFlags |= WHERE_IN_ABLE;
    if( pLevel->u.in.nIn==0 ){
      pLevel->addrNxt = sqlite3VdbeMakeLabel(v);
    }

    pLevel->u.in.nIn++;

    pLevel->u.in.aInLoop =
       sqlite3DbReallocOrFree(pParse->db, pLevel->u.in.aInLoop,
                              sizeof(pLevel->u.in.aInLoop[0])*pLevel->u.in.nIn);
    pIn = pLevel->u.in.aInLoop;
    if( pIn ){

      pIn += pLevel->u.in.nIn - 1;
      pIn->iCur = iTab;



      if( eType==IN_INDEX_ROWID ){

        pIn->addrInTop = sqlite3VdbeAddOp2(v, OP_Rowid, iTab, iReg);
      }else{

        pIn->addrInTop = sqlite3VdbeAddOp3(v, OP_Column, iTab, 0, iReg);
      }



      pIn->eEndLoopOp = bRev ? OP_PrevIfOpen : OP_NextIfOpen;
      sqlite3VdbeAddOp1(v, OP_IsNull, iReg); VdbeCoverage(v);






    }else{
      pLevel->u.in.nIn = 0;
    }

#endif
  }
  disableTerm(pLevel, pTerm);
  return iReg;
}

/*
................................................................................
      if( nReg==1 ){
        sqlite3ReleaseTempReg(pParse, regBase);
        regBase = r1;
      }else{
        sqlite3VdbeAddOp2(v, OP_SCopy, r1, regBase+j);
      }
    }
    testcase( pTerm->eOperator & WO_ISNULL );
    testcase( pTerm->eOperator & WO_IN );






    if( (pTerm->eOperator & (WO_ISNULL|WO_IN))==0 ){
      Expr *pRight = pTerm->pExpr->pRight;
      if( (pTerm->wtFlags & TERM_IS)==0 && sqlite3ExprCanBeNull(pRight) ){
        sqlite3VdbeAddOp2(v, OP_IsNull, regBase+j, pLevel->addrBrk);
        VdbeCoverage(v);
      }
      if( zAff ){
        if( sqlite3CompareAffinity(pRight, zAff[j])==SQLITE_AFF_BLOB ){
................................................................................
        assert( pIdx->aiColumn[i]<pTab->nCol );
        if( pIdx->aiColumn[i]>=0 ) ai[pIdx->aiColumn[i]+1] = i+1;
      }
      sqlite3VdbeChangeP4(v, -1, (char*)ai, P4_INTARRAY);
    }
  }
}


































/*
** Generate code for the start of the iLevel-th loop in the WHERE clause
** implementation described by pWInfo.
*/
SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart(
  WhereInfo *pWInfo,   /* Complete information about the WHERE clause */
................................................................................
      int iTarget = iReg+j+2;
      pTerm = pLoop->aLTerm[j];
      if( NEVER(pTerm==0) ) continue;
      if( pTerm->eOperator & WO_IN ){
        codeEqualityTerm(pParse, pTerm, pLevel, j, bRev, iTarget);
        addrNotFound = pLevel->addrNxt;
      }else{
        sqlite3ExprCode(pParse, pTerm->pExpr->pRight, iTarget);

      }
    }
    sqlite3VdbeAddOp2(v, OP_Integer, pLoop->u.vtab.idxNum, iReg);
    sqlite3VdbeAddOp2(v, OP_Integer, nConstraint, iReg+1);
    sqlite3VdbeAddOp4(v, OP_VFilter, iCur, addrNotFound, iReg,
                      pLoop->u.vtab.idxStr,
                      pLoop->u.vtab.needFree ? P4_MPRINTF : P4_STATIC);
................................................................................
      pStart = pEnd;
      pEnd = pTerm;
    }
    codeCursorHint(pTabItem, pWInfo, pLevel, pEnd);
    if( pStart ){
      Expr *pX;             /* The expression that defines the start bound */
      int r1, rTemp;        /* Registers for holding the start boundary */


      /* The following constant maps TK_xx codes into corresponding 
      ** seek opcodes.  It depends on a particular ordering of TK_xx
      */
      const u8 aMoveOp[] = {
           /* TK_GT */  OP_SeekGT,
           /* TK_LE */  OP_SeekLE,
................................................................................
      assert( TK_GE==TK_GT+3 );      /*  ... is correcct. */

      assert( (pStart->wtFlags & TERM_VNULL)==0 );
      testcase( pStart->wtFlags & TERM_VIRTUAL );
      pX = pStart->pExpr;
      assert( pX!=0 );
      testcase( pStart->leftCursor!=iCur ); /* transitive constraints */





      r1 = sqlite3ExprCodeTemp(pParse, pX->pRight, &rTemp);



      sqlite3VdbeAddOp3(v, aMoveOp[pX->op-TK_GT], iCur, addrBrk, r1);
      VdbeComment((v, "pk"));
      VdbeCoverageIf(v, pX->op==TK_GT);
      VdbeCoverageIf(v, pX->op==TK_LE);
      VdbeCoverageIf(v, pX->op==TK_LT);
      VdbeCoverageIf(v, pX->op==TK_GE);
      sqlite3ExprCacheAffinityChange(pParse, r1, 1);
      sqlite3ReleaseTempReg(pParse, rTemp);
      disableTerm(pLevel, pStart);
    }else{
      sqlite3VdbeAddOp2(v, bRev ? OP_Last : OP_Rewind, iCur, addrBrk);
      VdbeCoverageIf(v, bRev==0);
      VdbeCoverageIf(v, bRev!=0);
    }
    if( pEnd ){
      Expr *pX;
      pX = pEnd->pExpr;
      assert( pX!=0 );
      assert( (pEnd->wtFlags & TERM_VNULL)==0 );
      testcase( pEnd->leftCursor!=iCur ); /* Transitive constraints */
      testcase( pEnd->wtFlags & TERM_VIRTUAL );
      memEndValue = ++pParse->nMem;
      sqlite3ExprCode(pParse, pX->pRight, memEndValue);

      if( pX->op==TK_LT || pX->op==TK_GT ){

        testOp = bRev ? OP_Le : OP_Ge;
      }else{
        testOp = bRev ? OP_Lt : OP_Gt;
      }

      disableTerm(pLevel, pEnd);

    }
    start = sqlite3VdbeCurrentAddr(v);
    pLevel->op = bRev ? OP_Prev : OP_Next;
    pLevel->p1 = iCur;
    pLevel->p2 = start;
    assert( pLevel->p5==0 );
    if( testOp!=OP_Noop ){
................................................................................
    static const u8 aEndOp[] = {
      OP_IdxGE,            /* 0: (end_constraints && !bRev && !endEq) */
      OP_IdxGT,            /* 1: (end_constraints && !bRev &&  endEq) */
      OP_IdxLE,            /* 2: (end_constraints &&  bRev && !endEq) */
      OP_IdxLT,            /* 3: (end_constraints &&  bRev &&  endEq) */
    };
    u16 nEq = pLoop->u.btree.nEq;     /* Number of == or IN terms */


    int regBase;                 /* Base register holding constraint values */
    WhereTerm *pRangeStart = 0;  /* Inequality constraint at range start */
    WhereTerm *pRangeEnd = 0;    /* Inequality constraint at range end */
    int startEq;                 /* True if range start uses ==, >= or <= */
    int endEq;                   /* True if range end uses ==, >= or <= */
    int start_constraints;       /* Start of range is constrained */
    int nConstraint;             /* Number of constraint terms */
    Index *pIdx;                 /* The index we will be using */
    int iIdxCur;                 /* The VDBE cursor for the index */
    int nExtraReg = 0;           /* Number of extra registers needed */
    int op;                      /* Instruction opcode */
    char *zStartAff;             /* Affinity for start of range constraint */
    char cEndAff = 0;            /* Affinity for end of range constraint */
    u8 bSeekPastNull = 0;        /* True to seek past initial nulls */
    u8 bStopAtNull = 0;          /* Add condition to terminate at NULLs */

    pIdx = pLoop->u.btree.pIndex;
    iIdxCur = pLevel->iIdxCur;
    assert( nEq>=pLoop->nSkip );

................................................................................

    /* Find any inequality constraint terms for the start and end 
    ** of the range. 
    */
    j = nEq;
    if( pLoop->wsFlags & WHERE_BTM_LIMIT ){
      pRangeStart = pLoop->aLTerm[j++];
      nExtraReg = 1;
      /* Like optimization range constraints always occur in pairs */
      assert( (pRangeStart->wtFlags & TERM_LIKEOPT)==0 || 
              (pLoop->wsFlags & WHERE_TOP_LIMIT)!=0 );
    }
    if( pLoop->wsFlags & WHERE_TOP_LIMIT ){
      pRangeEnd = pLoop->aLTerm[j++];
      nExtraReg = 1;
#ifndef SQLITE_LIKE_DOESNT_MATCH_BLOBS
      if( (pRangeEnd->wtFlags & TERM_LIKEOPT)!=0 ){
        assert( pRangeStart!=0 );                     /* LIKE opt constraints */
        assert( pRangeStart->wtFlags & TERM_LIKEOPT );   /* occur in pairs */
        pLevel->iLikeRepCntr = (u32)++pParse->nMem;
        sqlite3VdbeAddOp2(v, OP_Integer, 1, (int)pLevel->iLikeRepCntr);
        VdbeComment((v, "LIKE loop counter"));
................................................................................
    ** start and end terms (pRangeStart and pRangeEnd).
    */
    if( (nEq<pIdx->nKeyCol && bRev==(pIdx->aSortOrder[nEq]==SQLITE_SO_ASC))
     || (bRev && pIdx->nKeyCol==nEq)
    ){
      SWAP(WhereTerm *, pRangeEnd, pRangeStart);
      SWAP(u8, bSeekPastNull, bStopAtNull);

    }

    /* Generate code to evaluate all constraint terms using == or IN
    ** and store the values of those terms in an array of registers
    ** starting at regBase.
    */
    codeCursorHint(pTabItem, pWInfo, pLevel, pRangeEnd);
    regBase = codeAllEqualityTerms(pParse,pLevel,bRev,nExtraReg,&zStartAff);
    assert( zStartAff==0 || sqlite3Strlen30(zStartAff)>=nEq );
    if( zStartAff ) cEndAff = zStartAff[nEq];


    addrNxt = pLevel->addrNxt;

    testcase( pRangeStart && (pRangeStart->eOperator & WO_LE)!=0 );
    testcase( pRangeStart && (pRangeStart->eOperator & WO_GE)!=0 );
    testcase( pRangeEnd && (pRangeEnd->eOperator & WO_LE)!=0 );
    testcase( pRangeEnd && (pRangeEnd->eOperator & WO_GE)!=0 );
    startEq = !pRangeStart || pRangeStart->eOperator & (WO_LE|WO_GE);
................................................................................
    endEq =   !pRangeEnd || pRangeEnd->eOperator & (WO_LE|WO_GE);
    start_constraints = pRangeStart || nEq>0;

    /* Seek the index cursor to the start of the range. */
    nConstraint = nEq;
    if( pRangeStart ){
      Expr *pRight = pRangeStart->pExpr->pRight;
      sqlite3ExprCode(pParse, pRight, regBase+nEq);
      whereLikeOptimizationStringFixup(v, pLevel, pRangeStart);
      if( (pRangeStart->wtFlags & TERM_VNULL)==0
       && sqlite3ExprCanBeNull(pRight)
      ){
        sqlite3VdbeAddOp2(v, OP_IsNull, regBase+nEq, addrNxt);
        VdbeCoverage(v);
      }
      if( zStartAff ){
        if( sqlite3CompareAffinity(pRight, zStartAff[nEq])==SQLITE_AFF_BLOB){
          /* Since the comparison is to be performed with no conversions
          ** applied to the operands, set the affinity to apply to pRight to 
          ** SQLITE_AFF_BLOB.  */
          zStartAff[nEq] = SQLITE_AFF_BLOB;
        }
        if( sqlite3ExprNeedsNoAffinityChange(pRight, zStartAff[nEq]) ){
          zStartAff[nEq] = SQLITE_AFF_BLOB;
        }
      }  
      nConstraint++;
      testcase( pRangeStart->wtFlags & TERM_VIRTUAL );





      bSeekPastNull = 0;
    }else if( bSeekPastNull ){
      sqlite3VdbeAddOp2(v, OP_Null, 0, regBase+nEq);
      nConstraint++;
      startEq = 0;
      start_constraints = 1;
    }
................................................................................
    /* Load the value for the inequality constraint at the end of the
    ** range (if any).
    */
    nConstraint = nEq;
    if( pRangeEnd ){
      Expr *pRight = pRangeEnd->pExpr->pRight;
      sqlite3ExprCacheRemove(pParse, regBase+nEq, 1);
      sqlite3ExprCode(pParse, pRight, regBase+nEq);
      whereLikeOptimizationStringFixup(v, pLevel, pRangeEnd);
      if( (pRangeEnd->wtFlags & TERM_VNULL)==0
       && sqlite3ExprCanBeNull(pRight)
      ){
        sqlite3VdbeAddOp2(v, OP_IsNull, regBase+nEq, addrNxt);
        VdbeCoverage(v);
      }
      if( sqlite3CompareAffinity(pRight, cEndAff)!=SQLITE_AFF_BLOB
       && !sqlite3ExprNeedsNoAffinityChange(pRight, cEndAff)
      ){
        codeApplyAffinity(pParse, regBase+nEq, 1, &cEndAff);


      }
      nConstraint++;
      testcase( pRangeEnd->wtFlags & TERM_VIRTUAL );






    }else if( bStopAtNull ){
      sqlite3VdbeAddOp2(v, OP_Null, 0, regBase+nEq);
      endEq = 0;
      nConstraint++;
    }
    sqlite3DbFree(db, zStartAff);


    /* Top of the loop body */
    pLevel->p2 = sqlite3VdbeCurrentAddr(v);

    /* Check if the index cursor is past the end of the range. */
    if( nConstraint ){
      op = aEndOp[bRev*2 + endEq];
................................................................................
      testcase( op==OP_IdxGT );  VdbeCoverageIf(v, op==OP_IdxGT );
      testcase( op==OP_IdxGE );  VdbeCoverageIf(v, op==OP_IdxGE );
      testcase( op==OP_IdxLT );  VdbeCoverageIf(v, op==OP_IdxLT );
      testcase( op==OP_IdxLE );  VdbeCoverageIf(v, op==OP_IdxLE );
    }

    /* Seek the table cursor, if required */
    disableTerm(pLevel, pRangeStart);
    disableTerm(pLevel, pRangeEnd);
    if( omitTable ){
      /* pIdx is a covering index.  No need to access the main table. */
    }else if( HasRowid(pIdx->pTable) ){
      if( (pWInfo->wctrlFlags & WHERE_SEEK_TABLE)!=0 ){
        iRowidReg = ++pParse->nMem;
        sqlite3VdbeAddOp2(v, OP_IdxRowid, iIdxCur, iRowidReg);
        sqlite3ExprCacheStore(pParse, iCur, -1, iRowidReg);
................................................................................
        k = sqlite3ColumnOfIndex(pIdx, pPk->aiColumn[j]);
        sqlite3VdbeAddOp3(v, OP_Column, iIdxCur, k, iRowidReg+j);
      }
      sqlite3VdbeAddOp4Int(v, OP_NotFound, iCur, addrCont,
                           iRowidReg, pPk->nKeyCol); VdbeCoverage(v);
    }

    /* Record the instruction used to terminate the loop. Disable 
    ** WHERE clause terms made redundant by the index range scan.
    */
    if( pLoop->wsFlags & WHERE_ONEROW ){
      pLevel->op = OP_Noop;
    }else if( bRev ){
      pLevel->op = OP_Prev;
    }else{
      pLevel->op = OP_Next;
    }
................................................................................
    int iLoopBody = sqlite3VdbeMakeLabel(v);  /* Start of loop body */
    int iRetInit;                             /* Address of regReturn init */
    int untestedTerms = 0;             /* Some terms not completely tested */
    int ii;                            /* Loop counter */
    u16 wctrlFlags;                    /* Flags for sub-WHERE clause */
    Expr *pAndExpr = 0;                /* An ".. AND (...)" expression */
    Table *pTab = pTabItem->pTab;
   
    pTerm = pLoop->aLTerm[0];
    assert( pTerm!=0 );
    assert( pTerm->eOperator & WO_OR );
    assert( (pTerm->wtFlags & TERM_ORINFO)!=0 );
    pOrWc = &pTerm->u.pOrInfo->wc;
    pLevel->op = OP_Return;
    pLevel->p1 = regReturn;
................................................................................
  **
  ** Example: If the WHERE clause contains "t1.a=t2.b" and "t2.b=123"
  ** and we are coding the t1 loop and the t2 loop has not yet coded,
  ** then we cannot use the "t1.a=t2.b" constraint, but we can code
  ** the implied "t1.a=123" constraint.
  */
  for(pTerm=pWC->a, j=pWC->nTerm; j>0; j--, pTerm++){
    Expr *pE, *pEAlt;
    WhereTerm *pAlt;
    if( pTerm->wtFlags & (TERM_VIRTUAL|TERM_CODED) ) continue;
    if( (pTerm->eOperator & (WO_EQ|WO_IS))==0 ) continue;
    if( (pTerm->eOperator & WO_EQUIV)==0 ) continue;
    if( pTerm->leftCursor!=iCur ) continue;
    if( pLevel->iLeftJoin ) continue;
    pE = pTerm->pExpr;
................................................................................
                    WO_EQ|WO_IN|WO_IS, 0);
    if( pAlt==0 ) continue;
    if( pAlt->wtFlags & (TERM_CODED) ) continue;
    testcase( pAlt->eOperator & WO_EQ );
    testcase( pAlt->eOperator & WO_IS );
    testcase( pAlt->eOperator & WO_IN );
    VdbeModuleComment((v, "begin transitive constraint"));
    pEAlt = sqlite3StackAllocRaw(db, sizeof(*pEAlt));
    if( pEAlt ){
      *pEAlt = *pAlt->pExpr;
      pEAlt->pLeft = pE->pLeft;
      sqlite3ExprIfFalse(pParse, pEAlt, addrCont, SQLITE_JUMPIFNULL);
      sqlite3StackFree(db, pEAlt);
    }
  }

  /* For a LEFT OUTER JOIN, generate code that will record the fact that
  ** at least one row of the right table has matched the left table.  
  */
  if( pLevel->iLeftJoin ){
    pLevel->addrFirst = sqlite3VdbeCurrentAddr(v);
................................................................................
      return 0;
    }
    memcpy(pWC->a, pOld, sizeof(pWC->a[0])*pWC->nTerm);
    if( pOld!=pWC->aStatic ){
      sqlite3DbFree(db, pOld);
    }
    pWC->nSlot = sqlite3DbMallocSize(db, pWC->a)/sizeof(pWC->a[0]);
    memset(&pWC->a[pWC->nTerm], 0, sizeof(pWC->a[0])*(pWC->nSlot-pWC->nTerm));
  }
  pTerm = &pWC->a[idx = pWC->nTerm++];
  if( p && ExprHasProperty(p, EP_Unlikely) ){
    pTerm->truthProb = sqlite3LogEst(p->iTable) - 270;
  }else{
    pTerm->truthProb = 1;
  }
  pTerm->pExpr = sqlite3ExprSkipCollate(p);
  pTerm->wtFlags = wtFlags;
  pTerm->pWC = pWC;
  pTerm->iParent = -1;


  return idx;
}

/*
** Return TRUE if the given operator is one of the operators that is
** allowed for an indexable WHERE clause term.  The allowed operators are
** "=", "<", ">", "<=", ">=", "IN", and "IS NULL"
*/
static int allowedOp(int op){
  assert( TK_GT>TK_EQ && TK_GT<TK_GE );
  assert( TK_LT>TK_EQ && TK_LT<TK_GE );
  assert( TK_LE>TK_EQ && TK_LE<TK_GE );
  assert( TK_GE==TK_EQ+4 );
  return op==TK_IN || (op>=TK_EQ && op<=TK_GE) || op==TK_ISNULL || op==TK_IS;
................................................................................
**
** If it is then return TRUE.  If not, return FALSE.
*/
static int isMatchOfColumn(
  Expr *pExpr,                    /* Test this expression */
  unsigned char *peOp2            /* OUT: 0 for MATCH, or else an op2 value */
){
  struct Op2 {
    const char *zOp;
    unsigned char eOp2;
  } aOp[] = {
    { "match",  SQLITE_INDEX_CONSTRAINT_MATCH },
    { "glob",   SQLITE_INDEX_CONSTRAINT_GLOB },
    { "like",   SQLITE_INDEX_CONSTRAINT_LIKE },
    { "regexp", SQLITE_INDEX_CONSTRAINT_REGEXP }
................................................................................

/*
** Expression pExpr is one operand of a comparison operator that might
** be useful for indexing.  This routine checks to see if pExpr appears
** in any index.  Return TRUE (1) if pExpr is an indexed term and return
** FALSE (0) if not.  If TRUE is returned, also set *piCur to the cursor
** number of the table that is indexed and *piColumn to the column number
** of the column that is indexed, or -2 if an expression is being indexed.

**
** If pExpr is a TK_COLUMN column reference, then this routine always returns
** true even if that particular column is not indexed, because the column
** might be added to an automatic index later.
*/
static int exprMightBeIndexed(
  SrcList *pFrom,        /* The FROM clause */

  Bitmask mPrereq,       /* Bitmask of FROM clause terms referenced by pExpr */
  Expr *pExpr,           /* An operand of a comparison operator */
  int *piCur,            /* Write the referenced table cursor number here */
  int *piColumn          /* Write the referenced table column number here */
){
  Index *pIdx;
  int i;
  int iCur;











  if( pExpr->op==TK_COLUMN ){
    *piCur = pExpr->iTable;
    *piColumn = pExpr->iColumn;
    return 1;
  }
  if( mPrereq==0 ) return 0;                 /* No table references */
  if( (mPrereq&(mPrereq-1))!=0 ) return 0;   /* Refs more than one table */
  for(i=0; mPrereq>1; i++, mPrereq>>=1){}
  iCur = pFrom->a[i].iCursor;
  for(pIdx=pFrom->a[i].pTab->pIndex; pIdx; pIdx=pIdx->pNext){
    if( pIdx->aColExpr==0 ) continue;
    for(i=0; i<pIdx->nKeyCol; i++){
      if( pIdx->aiColumn[i]!=(-2) ) continue;
      if( sqlite3ExprCompare(pExpr, pIdx->aColExpr->a[i].pExpr, iCur)==0 ){
        *piCur = iCur;
        *piColumn = -2;
        return 1;
      }
    }
  }
  return 0;
}

................................................................................
  pMaskSet = &pWInfo->sMaskSet;
  pExpr = pTerm->pExpr;
  assert( pExpr->op!=TK_AS && pExpr->op!=TK_COLLATE );
  prereqLeft = sqlite3WhereExprUsage(pMaskSet, pExpr->pLeft);
  op = pExpr->op;
  if( op==TK_IN ){
    assert( pExpr->pRight==0 );

    if( ExprHasProperty(pExpr, EP_xIsSelect) ){
      pTerm->prereqRight = exprSelectUsage(pMaskSet, pExpr->x.pSelect);
    }else{
      pTerm->prereqRight = sqlite3WhereExprListUsage(pMaskSet, pExpr->x.pList);
    }
  }else if( op==TK_ISNULL ){
    pTerm->prereqRight = 0;
................................................................................
  pTerm->iParent = -1;
  pTerm->eOperator = 0;
  if( allowedOp(op) ){
    int iCur, iColumn;
    Expr *pLeft = sqlite3ExprSkipCollate(pExpr->pLeft);
    Expr *pRight = sqlite3ExprSkipCollate(pExpr->pRight);
    u16 opMask = (pTerm->prereqRight & prereqLeft)==0 ? WO_ALL : WO_EQUIV;







    if( exprMightBeIndexed(pSrc, prereqLeft, pLeft, &iCur, &iColumn) ){
      pTerm->leftCursor = iCur;
      pTerm->u.leftColumn = iColumn;
      pTerm->eOperator = operatorMask(op) & opMask;
    }
    if( op==TK_IS ) pTerm->wtFlags |= TERM_IS;
    if( pRight 
     && exprMightBeIndexed(pSrc, pTerm->prereqRight, pRight, &iCur, &iColumn)
    ){
      WhereTerm *pNew;
      Expr *pDup;
      u16 eExtraOp = 0;        /* Extra bits for pNew->eOperator */

      if( pTerm->leftCursor>=0 ){
        int idxNew;
        pDup = sqlite3ExprDup(db, pExpr, 0);
        if( db->mallocFailed ){
          sqlite3ExprDelete(db, pDup);
          return;
        }
................................................................................
      markTermAsChild(pWC, idxNew, idxTerm);
      pTerm = &pWC->a[idxTerm];
      pTerm->wtFlags |= TERM_COPIED;
      pNewTerm->prereqAll = pTerm->prereqAll;
    }
  }
#endif /* SQLITE_OMIT_VIRTUALTABLE */






















































#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
  /* When sqlite_stat3 histogram data is available an operator of the
  ** form "x IS NOT NULL" can sometimes be evaluated more efficiently
  ** as "x>NULL" if x is not an INTEGER PRIMARY KEY.  So construct a
  ** virtual term of that form.
  **
................................................................................
    Expr *pNewExpr;
    Expr *pLeft = pExpr->pLeft;
    int idxNew;
    WhereTerm *pNewTerm;

    pNewExpr = sqlite3PExpr(pParse, TK_GT,
                            sqlite3ExprDup(db, pLeft, 0),
                            sqlite3PExpr(pParse, TK_NULL, 0, 0, 0), 0);

    idxNew = whereClauseInsert(pWC, pNewExpr,
                              TERM_VIRTUAL|TERM_DYNAMIC|TERM_VNULL);
    if( idxNew ){
      pNewTerm = &pWC->a[idxNew];
      pNewTerm->prereqRight = 0;
      pNewTerm->leftCursor = pLeft->iTable;
................................................................................

/*
** These routines walk (recursively) an expression tree and generate
** a bitmask indicating which tables are used in that expression
** tree.
*/
SQLITE_PRIVATE Bitmask sqlite3WhereExprUsage(WhereMaskSet *pMaskSet, Expr *p){
  Bitmask mask = 0;
  if( p==0 ) return 0;
  if( p->op==TK_COLUMN ){
    mask = sqlite3WhereGetMask(pMaskSet, p->iTable);
    return mask;
  }

  mask = sqlite3WhereExprUsage(pMaskSet, p->pRight);
  if( p->pLeft ) mask |= sqlite3WhereExprUsage(pMaskSet, p->pLeft);
  if( ExprHasProperty(p, EP_xIsSelect) ){
    mask |= exprSelectUsage(pMaskSet, p->x.pSelect);
  }else if( p->x.pList ){
    mask |= sqlite3WhereExprListUsage(pMaskSet, p->x.pList);
  }
  return mask;
................................................................................
  for(j=k=0; j<pArgs->nExpr; j++){
    while( k<pTab->nCol && (pTab->aCol[k].colFlags & COLFLAG_HIDDEN)==0 ){k++;}
    if( k>=pTab->nCol ){
      sqlite3ErrorMsg(pParse, "too many arguments on %s() - max %d",
                      pTab->zName, j);
      return;
    }
    pColRef = sqlite3PExpr(pParse, TK_COLUMN, 0, 0, 0);
    if( pColRef==0 ) return;
    pColRef->iTable = pItem->iCursor;
    pColRef->iColumn = k++;
    pColRef->pTab = pTab;
    pTerm = sqlite3PExpr(pParse, TK_EQ, pColRef,
                         sqlite3ExprDup(pParse->db, pArgs->a[j].pExpr, 0), 0);
    whereClauseInsert(pWC, pTerm, TERM_DYNAMIC);
................................................................................
  int addrCounter = 0;        /* Address where integer counter is initialized */
  int regBase;                /* Array of registers where record is assembled */

  /* Generate code to skip over the creation and initialization of the
  ** transient index on 2nd and subsequent iterations of the loop. */
  v = pParse->pVdbe;
  assert( v!=0 );
  addrInit = sqlite3CodeOnce(pParse); VdbeCoverage(v);

  /* Count the number of columns that will be added to the index
  ** and used to match WHERE clause constraints */
  nKeyCol = 0;
  pTable = pSrc->pTab;
  pWCEnd = &pWC->a[pWC->nTerm];
  pLoop = pLevel->pWLoop;
................................................................................
** by passing the pointer returned by this function to sqlite3_free().
*/
static sqlite3_index_info *allocateIndexInfo(
  Parse *pParse,
  WhereClause *pWC,
  Bitmask mUnusable,              /* Ignore terms with these prereqs */
  struct SrcList_item *pSrc,
  ExprList *pOrderBy

){
  int i, j;
  int nTerm;
  struct sqlite3_index_constraint *pIdxCons;
  struct sqlite3_index_orderby *pIdxOrderBy;
  struct sqlite3_index_constraint_usage *pUsage;
  WhereTerm *pTerm;
  int nOrderBy;
  sqlite3_index_info *pIdxInfo;


  /* Count the number of possible WHERE clause constraints referring
  ** to this virtual table */
  for(i=nTerm=0, pTerm=pWC->a; i<pWC->nTerm; i++, pTerm++){
    if( pTerm->leftCursor != pSrc->iCursor ) continue;
    if( pTerm->prereqRight & mUnusable ) continue;
    assert( IsPowerOfTwo(pTerm->eOperator & ~WO_EQUIV) );
................................................................................
    assert( WO_EQ==SQLITE_INDEX_CONSTRAINT_EQ );
    assert( WO_LT==SQLITE_INDEX_CONSTRAINT_LT );
    assert( WO_LE==SQLITE_INDEX_CONSTRAINT_LE );
    assert( WO_GT==SQLITE_INDEX_CONSTRAINT_GT );
    assert( WO_GE==SQLITE_INDEX_CONSTRAINT_GE );
    assert( WO_MATCH==SQLITE_INDEX_CONSTRAINT_MATCH );
    assert( pTerm->eOperator & (WO_IN|WO_EQ|WO_LT|WO_LE|WO_GT|WO_GE|WO_MATCH) );









    j++;
  }
  for(i=0; i<nOrderBy; i++){
    Expr *pExpr = pOrderBy->a[i].pExpr;
    pIdxOrderBy[i].iColumn = pExpr->iColumn;
    pIdxOrderBy[i].desc = pOrderBy->a[i].sortOrder;
  }


  return pIdxInfo;
}

/*
** The table object reference passed as the second argument to this function
** must represent a virtual table. This function invokes the xBestIndex()
** method of the virtual table with the sqlite3_index_info object that
................................................................................
}


#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
/*
** Return the affinity for a single column of an index.
*/
static char sqlite3IndexColumnAffinity(sqlite3 *db, Index *pIdx, int iCol){
  assert( iCol>=0 && iCol<pIdx->nColumn );
  if( !pIdx->zColAff ){
    if( sqlite3IndexAffinityStr(db, pIdx)==0 ) return SQLITE_AFF_BLOB;
  }
  return pIdx->zColAff[iCol];
}
#endif
................................................................................
  Index *p = pLoop->u.btree.pIndex;
  int nEq = pLoop->u.btree.nEq;

  if( p->nSample>0 && nEq<p->nSampleCol ){
    if( nEq==pBuilder->nRecValid ){
      UnpackedRecord *pRec = pBuilder->pRec;
      tRowcnt a[2];
      u8 aff;


      /* Variable iLower will be set to the estimate of the number of rows in 
      ** the index that are less than the lower bound of the range query. The
      ** lower bound being the concatenation of $P and $L, where $P is the
      ** key-prefix formed by the nEq values matched against the nEq left-most
      ** columns of the index, and $L is the value in pLower.
      **
................................................................................
      int iLwrIdx = -2;   /* aSample[] for the lower bound */
      int iUprIdx = -1;   /* aSample[] for the upper bound */

      if( pRec ){
        testcase( pRec->nField!=pBuilder->nRecValid );
        pRec->nField = pBuilder->nRecValid;
      }
      aff = sqlite3IndexColumnAffinity(pParse->db, p, nEq);
      assert( nEq!=p->nKeyCol || aff==SQLITE_AFF_INTEGER );
      /* Determine iLower and iUpper using ($P) only. */
      if( nEq==0 ){
        iLower = 0;
        iUpper = p->nRowEst0;
      }else{
        /* Note: this call could be optimized away - since the same values must 
        ** have been requested when testing key $P in whereEqualScanEst().  */
................................................................................

      assert( pLower==0 || (pLower->eOperator & (WO_GT|WO_GE))!=0 );
      assert( pUpper==0 || (pUpper->eOperator & (WO_LT|WO_LE))!=0 );
      assert( p->aSortOrder!=0 );
      if( p->aSortOrder[nEq] ){
        /* The roles of pLower and pUpper are swapped for a DESC index */
        SWAP(WhereTerm*, pLower, pUpper);

      }

      /* If possible, improve on the iLower estimate using ($P:$L). */
      if( pLower ){
        int bOk;                    /* True if value is extracted from pExpr */
        Expr *pExpr = pLower->pExpr->pRight;
        rc = sqlite3Stat4ProbeSetValue(pParse, p, &pRec, pExpr, aff, nEq, &bOk);
        if( rc==SQLITE_OK && bOk ){
          tRowcnt iNew;


          iLwrIdx = whereKeyStats(pParse, p, pRec, 0, a);
          iNew = a[0] + ((pLower->eOperator & (WO_GT|WO_LE)) ? a[1] : 0);
          if( iNew>iLower ) iLower = iNew;
          nOut--;
          pLower = 0;
        }
      }

      /* If possible, improve on the iUpper estimate using ($P:$U). */
      if( pUpper ){
        int bOk;                    /* True if value is extracted from pExpr */
        Expr *pExpr = pUpper->pExpr->pRight;
        rc = sqlite3Stat4ProbeSetValue(pParse, p, &pRec, pExpr, aff, nEq, &bOk);
        if( rc==SQLITE_OK && bOk ){
          tRowcnt iNew;


          iUprIdx = whereKeyStats(pParse, p, pRec, 1, a);
          iNew = a[0] + ((pUpper->eOperator & (WO_GT|WO_LE)) ? a[1] : 0);
          if( iNew<iUpper ) iUpper = iNew;
          nOut--;
          pUpper = 0;
        }
      }

      pBuilder->pRec = pRec;
................................................................................
  WhereLoopBuilder *pBuilder,
  Expr *pExpr,         /* Expression for VALUE in the x=VALUE constraint */
  tRowcnt *pnRow       /* Write the revised row estimate here */
){
  Index *p = pBuilder->pNew->u.btree.pIndex;
  int nEq = pBuilder->pNew->u.btree.nEq;
  UnpackedRecord *pRec = pBuilder->pRec;
  u8 aff;                   /* Column affinity */
  int rc;                   /* Subfunction return code */
  tRowcnt a[2];             /* Statistics */
  int bOk;

  assert( nEq>=1 );
  assert( nEq<=p->nColumn );
  assert( p->aSample!=0 );
................................................................................
  /* This is an optimization only. The call to sqlite3Stat4ProbeSetValue()
  ** below would return the same value.  */
  if( nEq>=p->nColumn ){
    *pnRow = 1;
    return SQLITE_OK;
  }

  aff = sqlite3IndexColumnAffinity(pParse->db, p, nEq-1);
  rc = sqlite3Stat4ProbeSetValue(pParse, p, &pRec, pExpr, aff, nEq-1, &bOk);
  pBuilder->pRec = pRec;
  if( rc!=SQLITE_OK ) return rc;
  if( bOk==0 ) return SQLITE_NOTFOUND;
  pBuilder->nRecValid = nEq;

  whereKeyStats(pParse, p, pRec, 0, a);
  WHERETRACE(0x10,("equality scan regions %s(%d): %d\n",
................................................................................
    }else if( (pTerm->eOperator & WO_OR)!=0 && pTerm->u.pOrInfo!=0 ){
      sqlite3_snprintf(sizeof(zLeft),zLeft,"indexable=0x%lld", 
                       pTerm->u.pOrInfo->indexable);
    }else{
      sqlite3_snprintf(sizeof(zLeft),zLeft,"left=%d", pTerm->leftCursor);
    }
    sqlite3DebugPrintf(
       "TERM-%-3d %p %s %-12s prob=%-3d op=0x%03x wtFlags=0x%04x\n",
       iTerm, pTerm, zType, zLeft, pTerm->truthProb,
       pTerm->eOperator, pTerm->wtFlags);





    sqlite3TreeViewExpr(0, pTerm->pExpr, 0);
  }
}
#endif

#ifdef WHERETRACE_ENABLED
/*
................................................................................
          if( iReduce<k ) iReduce = k;
        }
      }
    }
  }
  if( pLoop->nOut > nRow-iReduce )  pLoop->nOut = nRow - iReduce;
}



































































/*
** Adjust the cost C by the costMult facter T.  This only occurs if
** compiled with -DSQLITE_ENABLE_COSTMULT
*/
#ifdef SQLITE_ENABLE_COSTMULT
# define ApplyCostMultiplier(C,T)  C += T
................................................................................
  WhereLoop *pNew;                /* Template WhereLoop under construction */
  WhereTerm *pTerm;               /* A WhereTerm under consideration */
  int opMask;                     /* Valid operators for constraints */
  WhereScan scan;                 /* Iterator for WHERE terms */
  Bitmask saved_prereq;           /* Original value of pNew->prereq */
  u16 saved_nLTerm;               /* Original value of pNew->nLTerm */
  u16 saved_nEq;                  /* Original value of pNew->u.btree.nEq */


  u16 saved_nSkip;                /* Original value of pNew->nSkip */
  u32 saved_wsFlags;              /* Original value of pNew->wsFlags */
  LogEst saved_nOut;              /* Original value of pNew->nOut */
  int rc = SQLITE_OK;             /* Return code */
  LogEst rSize;                   /* Number of rows in the table */
  LogEst rLogSize;                /* Logarithm of table size */
  WhereTerm *pTop = 0, *pBtm = 0; /* Top and bottom range constraints */

  pNew = pBuilder->pNew;
  if( db->mallocFailed ) return SQLITE_NOMEM_BKPT;



  assert( (pNew->wsFlags & WHERE_VIRTUALTABLE)==0 );
  assert( (pNew->wsFlags & WHERE_TOP_LIMIT)==0 );
  if( pNew->wsFlags & WHERE_BTM_LIMIT ){
    opMask = WO_LT|WO_LE;
  }else{

    opMask = WO_EQ|WO_IN|WO_GT|WO_GE|WO_LT|WO_LE|WO_ISNULL|WO_IS;
  }
  if( pProbe->bUnordered ) opMask &= ~(WO_GT|WO_GE|WO_LT|WO_LE);

  assert( pNew->u.btree.nEq<pProbe->nColumn );

  saved_nEq = pNew->u.btree.nEq;


  saved_nSkip = pNew->nSkip;
  saved_nLTerm = pNew->nLTerm;
  saved_wsFlags = pNew->wsFlags;
  saved_prereq = pNew->prereq;
  saved_nOut = pNew->nOut;
  pTerm = whereScanInit(&scan, pBuilder->pWC, pSrc->iCursor, saved_nEq,
                        opMask, pProbe);
................................................................................
      testcase( eOp & WO_IS );
      testcase( eOp & WO_ISNULL );
      continue;
    }

    pNew->wsFlags = saved_wsFlags;
    pNew->u.btree.nEq = saved_nEq;


    pNew->nLTerm = saved_nLTerm;
    if( whereLoopResize(db, pNew, pNew->nLTerm+1) ) break; /* OOM */
    pNew->aLTerm[pNew->nLTerm++] = pTerm;
    pNew->prereq = (saved_prereq | pTerm->prereqRight) & ~pNew->maskSelf;

    assert( nInMul==0
        || (pNew->wsFlags & WHERE_COLUMN_NULL)!=0 
................................................................................
    );

    if( eOp & WO_IN ){
      Expr *pExpr = pTerm->pExpr;
      pNew->wsFlags |= WHERE_COLUMN_IN;
      if( ExprHasProperty(pExpr, EP_xIsSelect) ){
        /* "x IN (SELECT ...)":  TUNING: the SELECT returns 25 rows */

        nIn = 46;  assert( 46==sqlite3LogEst(25) );









      }else if( ALWAYS(pExpr->x.pList && pExpr->x.pList->nExpr) ){
        /* "x IN (value, value, ...)" */
        nIn = sqlite3LogEst(pExpr->x.pList->nExpr);
      }
      assert( nIn>0 );  /* RHS always has 2 or more terms...  The parser
                        ** changes "x IN (?)" into "x=?". */

    }else if( eOp & (WO_EQ|WO_IS) ){
      int iCol = pProbe->aiColumn[saved_nEq];
      pNew->wsFlags |= WHERE_COLUMN_EQ;
      assert( saved_nEq==pNew->u.btree.nEq );
      if( iCol==XN_ROWID 
       || (iCol>0 && nInMul==0 && saved_nEq==pProbe->nKeyCol-1)
      ){
................................................................................
      }
    }else if( eOp & WO_ISNULL ){
      pNew->wsFlags |= WHERE_COLUMN_NULL;
    }else if( eOp & (WO_GT|WO_GE) ){
      testcase( eOp & WO_GT );
      testcase( eOp & WO_GE );
      pNew->wsFlags |= WHERE_COLUMN_RANGE|WHERE_BTM_LIMIT;



      pBtm = pTerm;
      pTop = 0;
      if( pTerm->wtFlags & TERM_LIKEOPT ){
        /* Range contraints that come from the LIKE optimization are
        ** always used in pairs. */
        pTop = &pTerm[1];
        assert( (pTop-(pTerm->pWC->a))<pTerm->pWC->nTerm );
        assert( pTop->wtFlags & TERM_LIKEOPT );
        assert( pTop->eOperator==WO_LT );
        if( whereLoopResize(db, pNew, pNew->nLTerm+1) ) break; /* OOM */
        pNew->aLTerm[pNew->nLTerm++] = pTop;
        pNew->wsFlags |= WHERE_TOP_LIMIT;

      }
    }else{
      assert( eOp & (WO_LT|WO_LE) );
      testcase( eOp & WO_LT );
      testcase( eOp & WO_LE );
      pNew->wsFlags |= WHERE_COLUMN_RANGE|WHERE_TOP_LIMIT;



      pTop = pTerm;
      pBtm = (pNew->wsFlags & WHERE_BTM_LIMIT)!=0 ?
                     pNew->aLTerm[pNew->nLTerm-2] : 0;
    }

    /* At this point pNew->nOut is set to the number of rows expected to
    ** be visited by the index scan before considering term pTerm, or the
................................................................................
    pNew->nOut = saved_nOut;
#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
    pBuilder->nRecValid = nRecValid;
#endif
  }
  pNew->prereq = saved_prereq;
  pNew->u.btree.nEq = saved_nEq;


  pNew->nSkip = saved_nSkip;
  pNew->wsFlags = saved_wsFlags;
  pNew->nOut = saved_nOut;
  pNew->nLTerm = saved_nLTerm;

  /* Consider using a skip-scan if there are no WHERE clause constraints
  ** available for the left-most terms of the index, and if the average
................................................................................
    whereLoopAddBtreeIndex(pBuilder, pSrc, pProbe, nIter + nInMul);
    pNew->nOut = saved_nOut;
    pNew->u.btree.nEq = saved_nEq;
    pNew->nSkip = saved_nSkip;
    pNew->wsFlags = saved_wsFlags;
  }



  return rc;
}

/*
** Return True if it is possible that pIndex might be useful in
** implementing the ORDER BY clause in pBuilder.
**
................................................................................
    }
  }
  return 0;
}

/*
** Add all WhereLoop objects for a single table of the join where the table
** is idenfied by pBuilder->pNew->iTab.  That table is guaranteed to be
** a b-tree table, not a virtual table.
**
** The costs (WhereLoop.rRun) of the b-tree loops added by this function
** are calculated as follows:
**
** For a full scan, assuming the table (or index) contains nRow rows:
**
................................................................................
    if( pProbe->pPartIdxWhere!=0
     && !whereUsablePartialIndex(pSrc->iCursor, pWC, pProbe->pPartIdxWhere) ){
      testcase( pNew->iTab!=pSrc->iCursor );  /* See ticket [98d973b8f5] */
      continue;  /* Partial index inappropriate for this query */
    }
    rSize = pProbe->aiRowLogEst[0];
    pNew->u.btree.nEq = 0;


    pNew->nSkip = 0;
    pNew->nLTerm = 0;
    pNew->iSortIdx = 0;
    pNew->rSetup = 0;
    pNew->prereq = mPrereq;
    pNew->nOut = rSize;
    pNew->u.btree.pIndex = pProbe;
................................................................................
*/
static int whereLoopAddVirtualOne(
  WhereLoopBuilder *pBuilder,
  Bitmask mPrereq,                /* Mask of tables that must be used. */
  Bitmask mUsable,                /* Mask of usable tables */
  u16 mExclude,                   /* Exclude terms using these operators */
  sqlite3_index_info *pIdxInfo,   /* Populated object for xBestIndex */

  int *pbIn                       /* OUT: True if plan uses an IN(...) op */
){
  WhereClause *pWC = pBuilder->pWC;
  struct sqlite3_index_constraint *pIdxCons;
  struct sqlite3_index_constraint_usage *pUsage = pIdxInfo->aConstraintUsage;
  int i;
  int mxTerm;
................................................................................
        ** together.  */
        pIdxInfo->orderByConsumed = 0;
        pIdxInfo->idxFlags &= ~SQLITE_INDEX_SCAN_UNIQUE;
        *pbIn = 1; assert( (mExclude & WO_IN)==0 );
      }
    }
  }


  pNew->nLTerm = mxTerm+1;
  assert( pNew->nLTerm<=pNew->nLSlot );
  pNew->u.vtab.idxNum = pIdxInfo->idxNum;
  pNew->u.vtab.needFree = pIdxInfo->needToFreeIdxStr;
  pIdxInfo->needToFreeIdxStr = 0;
  pNew->u.vtab.idxStr = pIdxInfo->idxStr;
................................................................................
  WhereClause *pWC;            /* The WHERE clause */
  struct SrcList_item *pSrc;   /* The FROM clause term to search */
  sqlite3_index_info *p;       /* Object to pass to xBestIndex() */
  int nConstraint;             /* Number of constraints in p */
  int bIn;                     /* True if plan uses IN(...) operator */
  WhereLoop *pNew;
  Bitmask mBest;               /* Tables used by best possible plan */


  assert( (mPrereq & mUnusable)==0 );
  pWInfo = pBuilder->pWInfo;
  pParse = pWInfo->pParse;
  pWC = pBuilder->pWC;
  pNew = pBuilder->pNew;
  pSrc = &pWInfo->pTabList->a[pNew->iTab];
  assert( IsVirtual(pSrc->pTab) );
  p = allocateIndexInfo(pParse, pWC, mUnusable, pSrc, pBuilder->pOrderBy);

  if( p==0 ) return SQLITE_NOMEM_BKPT;
  pNew->rSetup = 0;
  pNew->wsFlags = WHERE_VIRTUALTABLE;
  pNew->nLTerm = 0;
  pNew->u.vtab.needFree = 0;
  nConstraint = p->nConstraint;
  if( whereLoopResize(pParse->db, pNew, nConstraint) ){
    sqlite3DbFree(pParse->db, p);
    return SQLITE_NOMEM_BKPT;
  }

  /* First call xBestIndex() with all constraints usable. */
  WHERETRACE(0x40, ("  VirtualOne: all usable\n"));
  rc = whereLoopAddVirtualOne(pBuilder, mPrereq, ALLBITS, 0, p, &bIn);

  /* If the call to xBestIndex() with all terms enabled produced a plan
  ** that does not require any source tables (IOW: a plan with mBest==0),
  ** then there is no point in making any further calls to xBestIndex() 
  ** since they will all return the same result (if the xBestIndex()
  ** implementation is sane). */
  if( rc==SQLITE_OK && (mBest = (pNew->prereq & ~mPrereq))!=0 ){
................................................................................
    Bitmask mPrev = 0;
    Bitmask mBestNoIn = 0;

    /* If the plan produced by the earlier call uses an IN(...) term, call
    ** xBestIndex again, this time with IN(...) terms disabled. */
    if( bIn ){
      WHERETRACE(0x40, ("  VirtualOne: all usable w/o IN\n"));

      rc = whereLoopAddVirtualOne(pBuilder, mPrereq, ALLBITS, WO_IN, p, &bIn);
      assert( bIn==0 );
      mBestNoIn = pNew->prereq & ~mPrereq;
      if( mBestNoIn==0 ){
        seenZero = 1;
        seenZeroNoIN = 1;
      }
    }
................................................................................
        if( mThis>mPrev && mThis<mNext ) mNext = mThis;
      }
      mPrev = mNext;
      if( mNext==ALLBITS ) break;
      if( mNext==mBest || mNext==mBestNoIn ) continue;
      WHERETRACE(0x40, ("  VirtualOne: mPrev=%04llx mNext=%04llx\n",
                       (sqlite3_uint64)mPrev, (sqlite3_uint64)mNext));

      rc = whereLoopAddVirtualOne(pBuilder, mPrereq, mNext|mPrereq, 0, p, &bIn);
      if( pNew->prereq==mPrereq ){
        seenZero = 1;
        if( bIn==0 ) seenZeroNoIN = 1;
      }
    }

    /* If the calls to xBestIndex() in the above loop did not find a plan
    ** that requires no source tables at all (i.e. one guaranteed to be
    ** usable), make a call here with all source tables disabled */
    if( rc==SQLITE_OK && seenZero==0 ){
      WHERETRACE(0x40, ("  VirtualOne: all disabled\n"));
      rc = whereLoopAddVirtualOne(pBuilder, mPrereq, mPrereq, 0, p, &bIn);

      if( bIn==0 ) seenZeroNoIN = 1;
    }

    /* If the calls to xBestIndex() have so far failed to find a plan
    ** that requires no source tables at all and does not use an IN(...)
    ** operator, make a final call to obtain one here.  */
    if( rc==SQLITE_OK && seenZeroNoIN==0 ){
      WHERETRACE(0x40, ("  VirtualOne: all disabled and w/o IN\n"));

      rc = whereLoopAddVirtualOne(pBuilder, mPrereq, mPrereq, WO_IN, p, &bIn);
    }
  }

  if( p->needToFreeIdxStr ) sqlite3_free(p->idxStr);
  sqlite3DbFree(pParse->db, p);
  return rc;
}
................................................................................
      if( MASKBIT(i) & obSat ) continue;
      pOBExpr = sqlite3ExprSkipCollate(pOrderBy->a[i].pExpr);
      if( pOBExpr->op!=TK_COLUMN ) continue;
      if( pOBExpr->iTable!=iCur ) continue;
      pTerm = sqlite3WhereFindTerm(&pWInfo->sWC, iCur, pOBExpr->iColumn,
                       ~ready, eqOpMask, 0);
      if( pTerm==0 ) continue;








      if( (pTerm->eOperator&(WO_EQ|WO_IS))!=0 && pOBExpr->iColumn>=0 ){
        const char *z1, *z2;
        pColl = sqlite3ExprCollSeq(pWInfo->pParse, pOrderBy->a[i].pExpr);
        if( !pColl ) pColl = db->pDfltColl;
        z1 = pColl->zName;
        pColl = sqlite3ExprCollSeq(pWInfo->pParse, pTerm->pExpr);
        if( !pColl ) pColl = db->pDfltColl;
................................................................................

      /* Loop through all columns of the index and deal with the ones
      ** that are not constrained by == or IN.
      */
      rev = revSet = 0;
      distinctColumns = 0;
      for(j=0; j<nColumn; j++){
        u8 bOnce;   /* True to run the ORDER BY search loop */







        /* Skip over == and IS and ISNULL terms.
        ** (Also skip IN terms when doing WHERE_ORDERBY_LIMIT processing)
        */
        if( j<pLoop->u.btree.nEq
         && pLoop->nSkip==0
         && ((i = pLoop->aLTerm[j]->eOperator) & eqOpMask)!=0
        ){






          if( i & WO_ISNULL ){
            testcase( isOrderDistinct );
            isOrderDistinct = 0;
          }
          continue;  














        }

        /* Get the column number in the table (iColumn) and sort order
        ** (revIdx) for the j-th column of the index.
        */
        if( pIndex ){
          iColumn = pIndex->aiColumn[j];
................................................................................
        ){
          isOrderDistinct = 0;
        }

        /* Find the ORDER BY term that corresponds to the j-th column
        ** of the index and mark that ORDER BY term off 
        */
        bOnce = 1;
        isMatch = 0;
        for(i=0; bOnce && i<nOrderBy; i++){
          if( MASKBIT(i) & obSat ) continue;
          pOBExpr = sqlite3ExprSkipCollate(pOrderBy->a[i].pExpr);
          testcase( wctrlFlags & WHERE_GROUPBY );
          testcase( wctrlFlags & WHERE_DISTINCTBY );
          if( (wctrlFlags & (WHERE_GROUPBY|WHERE_DISTINCTBY))==0 ) bOnce = 0;
................................................................................
        pWInfo->eDistinct = WHERE_DISTINCT_ORDERED;
      }
    }else{
      pWInfo->nOBSat = pFrom->isOrdered;
      pWInfo->revMask = pFrom->revLoop;
      if( pWInfo->nOBSat<=0 ){
        pWInfo->nOBSat = 0;
        if( nLoop>0 ){
          Bitmask m = 0;
          int rc = wherePathSatisfiesOrderBy(pWInfo, pWInfo->pOrderBy, pFrom,
                      WHERE_ORDERBY_LIMIT, nLoop-1, pFrom->aLoop[nLoop-1], &m);
          if( rc==pWInfo->pOrderBy->nExpr ){
            pWInfo->bOrderedInnerLoop = 1;
            pWInfo->revMask = m;
          }
................................................................................
  ** return value. A single allocation is used to store the WhereInfo
  ** struct, the contents of WhereInfo.a[], the WhereClause structure
  ** and the WhereMaskSet structure. Since WhereClause contains an 8-byte
  ** field (type Bitmask) it must be aligned on an 8-byte boundary on
  ** some architectures. Hence the ROUND8() below.
  */
  nByteWInfo = ROUND8(sizeof(WhereInfo)+(nTabList-1)*sizeof(WhereLevel));
  pWInfo = sqlite3DbMallocZero(db, nByteWInfo + sizeof(WhereLoop));
  if( db->mallocFailed ){
    sqlite3DbFree(db, pWInfo);
    pWInfo = 0;
    goto whereBeginError;
  }
  pWInfo->aiCurOnePass[0] = pWInfo->aiCurOnePass[1] = -1;
  pWInfo->nLevel = nTabList;
  pWInfo->pParse = pParse;
  pWInfo->pTabList = pTabList;
  pWInfo->pOrderBy = pOrderBy;
  pWInfo->pDistinctSet = pDistinctSet;


  pWInfo->iBreak = pWInfo->iContinue = sqlite3VdbeMakeLabel(v);
  pWInfo->wctrlFlags = wctrlFlags;
  pWInfo->iLimit = iAuxArg;
  pWInfo->savedNQueryLoop = pParse->nQueryLoop;



  assert( pWInfo->eOnePass==ONEPASS_OFF );  /* ONEPASS defaults to OFF */
  pMaskSet = &pWInfo->sMaskSet;
  sWLB.pWInfo = pWInfo;
  sWLB.pWC = &pWInfo->sWC;
  sWLB.pNew = (WhereLoop*)(((char*)pWInfo)+nByteWInfo);
  assert( EIGHT_BYTE_ALIGNMENT(sWLB.pNew) );
  whereLoopInit(sWLB.pNew);
................................................................................
    }
    if( pLoop->wsFlags & WHERE_IN_ABLE && pLevel->u.in.nIn>0 ){
      struct InLoop *pIn;
      int j;
      sqlite3VdbeResolveLabel(v, pLevel->addrNxt);
      for(j=pLevel->u.in.nIn, pIn=&pLevel->u.in.aInLoop[j-1]; j>0; j--, pIn--){
        sqlite3VdbeJumpHere(v, pIn->addrInTop+1);

        sqlite3VdbeAddOp2(v, pIn->eEndLoopOp, pIn->iCur, pIn->addrInTop);
        VdbeCoverage(v);
        VdbeCoverageIf(v, pIn->eEndLoopOp==OP_PrevIfOpen);
        VdbeCoverageIf(v, pIn->eEndLoopOp==OP_NextIfOpen);

        sqlite3VdbeJumpHere(v, pIn->addrInTop-1);
      }
    }
    sqlite3VdbeResolveLabel(v, pLevel->addrBrk);
    if( pLevel->addrSkip ){
      sqlite3VdbeGoto(v, pLevel->addrSkip);
      VdbeComment((v, "next skip-scan on %s", pLoop->u.btree.pIndex->zName));
................................................................................
** LIMIT clause of a SELECT statement.
*/
struct LimitVal {
  Expr *pLimit;    /* The LIMIT expression.  NULL if there is no limit */
  Expr *pOffset;   /* The OFFSET expression.  NULL if there is none */
};

/*
** An instance of this structure is used to store the LIKE,
** GLOB, NOT LIKE, and NOT GLOB operators.
*/
struct LikeOp {
  Token eOperator;  /* "like" or "glob" or "regexp" */
  int bNot;         /* True if the NOT keyword is present */
};

/*
** An instance of the following structure describes the event of a
** TRIGGER.  "a" is the event type, one of TK_UPDATE, TK_INSERT,
** TK_DELETE, or TK_INSTEAD.  If the event is of the form
**
**      UPDATE ON (a,b,c)
**
** Then the "b" IdList records the list "a,b,c".
*/
struct TrigEvent { int a; IdList * b; };

/*
** An instance of this structure holds the ATTACH key and the key type.
*/
struct AttachKey { int type;  Token key; };

/*
** Disable lookaside memory allocation for objects that might be
** shared across database connections.
*/
static void disableLookaside(Parse *pParse){
  pParse->disableLookaside++;
  pParse->db->lookaside.bDisable++;
................................................................................
  }

  /* Construct a new Expr object from a single identifier.  Use the
  ** new Expr to populate pOut.  Set the span of pOut to be the identifier
  ** that created the expression.
  */
  static void spanExpr(ExprSpan *pOut, Parse *pParse, int op, Token t){

















    pOut->pExpr = sqlite3PExpr(pParse, op, 0, 0, &t);
    pOut->zStart = t.z;
    pOut->zEnd = &t.z[t.n];
  }

  /* This routine constructs a binary expression node out of two ExprSpan
  ** objects and uses the result to populate a new ExprSpan object.
  */
................................................................................
  ExprSpan yy190;
  int yy194;
  Select* yy243;
  IdList* yy254;
  With* yy285;
  struct TrigEvent yy332;
  struct LimitVal yy354;
  struct LikeOp yy392;
  struct {int value; int mask;} yy497;
} YYMINORTYPE;
#ifndef YYSTACKDEPTH
#define YYSTACKDEPTH 100
#endif
#define sqlite3ParserARG_SDECL Parse *pParse;
#define sqlite3ParserARG_PDECL ,Parse *pParse
#define sqlite3ParserARG_FETCH Parse *pParse = yypParser->pParse
#define sqlite3ParserARG_STORE yypParser->pParse = pParse
#define YYFALLBACK 1
#define YYNSTATE             443
#define YYNRULE              328
#define YY_MAX_SHIFT         442
#define YY_MIN_SHIFTREDUCE   653
#define YY_MAX_SHIFTREDUCE   980
#define YY_MIN_REDUCE        981
#define YY_MAX_REDUCE        1308
#define YY_ERROR_ACTION      1309
#define YY_ACCEPT_ACTION     1310
#define YY_NO_ACTION         1311
/************* End control #defines *******************************************/

/* Define the yytestcase() macro to be a no-op if is not already defined
** otherwise.
**
** Applications can choose to define yytestcase() in the %include section
** to a macro that can assist in verifying code coverage.  For production
................................................................................
**                                      token onto the stack and goto state N.
**
**   N between YY_MIN_SHIFTREDUCE       Shift to an arbitrary state then
**     and YY_MAX_SHIFTREDUCE           reduce by rule N-YY_MIN_SHIFTREDUCE.
**
**   N between YY_MIN_REDUCE            Reduce by rule N-YY_MIN_REDUCE
**     and YY_MAX_REDUCE

**   N == YY_ERROR_ACTION               A syntax error has occurred.
**
**   N == YY_ACCEPT_ACTION              The parser accepts its input.
**
**   N == YY_NO_ACTION                  No such action.  Denotes unused
**                                      slots in the yy_action[] table.
**
** The action table is constructed as a single large table named yy_action[].
** Given state S and lookahead X, the action is computed as
**
**      yy_action[ yy_shift_ofst[S] + X ]

**
** If the index value yy_shift_ofst[S]+X is out of range or if the value


** yy_lookahead[yy_shift_ofst[S]+X] is not equal to X or if yy_shift_ofst[S]
** is equal to YY_SHIFT_USE_DFLT, it means that the action is not in the table
** and that yy_default[S] should be used instead.  




**
** The formula above is for computing the action when the lookahead is
** a terminal symbol.  If the lookahead is a non-terminal (as occurs after
** a reduce action) then the yy_reduce_ofst[] array is used in place of
** the yy_shift_ofst[] array and YY_REDUCE_USE_DFLT is used in place of
** YY_SHIFT_USE_DFLT.
**
** The following are the tables generated in this section:
**
................................................................................
**  yy_shift_ofst[]    For each state, the offset into yy_action for
**                     shifting terminals.
**  yy_reduce_ofst[]   For each state, the offset into yy_action for
**                     shifting non-terminals after a reduce.
**  yy_default[]       Default action for each state.
**
*********** Begin parsing tables **********************************************/
#define YY_ACTTAB_COUNT (1507)
static const YYACTIONTYPE yy_action[] = {
 /*     0 */   317,  814,  341,  808,    5,  195,  195,  802,   93,   94,
 /*    10 */    84,  823,  823,  835,  838,  827,  827,   91,   91,   92,
 /*    20 */    92,   92,   92,  293,   90,   90,   90,   90,   89,   89,
 /*    30 */    88,   88,   88,   87,  341,  317,  958,  958,  807,  807,
 /*    40 */   807,  928,  344,   93,   94,   84,  823,  823,  835,  838,
 /*    50 */   827,  827,   91,   91,   92,   92,   92,   92,  328,   90,
 /*    60 */    90,   90,   90,   89,   89,   88,   88,   88,   87,  341,
 /*    70 */    89,   89,   88,   88,   88,   87,  341,  776,  958,  958,
 /*    80 */   317,   88,   88,   88,   87,  341,  777,   69,   93,   94,
 /*    90 */    84,  823,  823,  835,  838,  827,  827,   91,   91,   92,
 /*   100 */    92,   92,   92,  437,   90,   90,   90,   90,   89,   89,
 /*   110 */    88,   88,   88,   87,  341, 1310,  147,  147,    2,  317,
 /*   120 */    76,   25,   74,   49,   49,   87,  341,   93,   94,   84,
 /*   130 */   823,  823,  835,  838,  827,  827,   91,   91,   92,   92,
 /*   140 */    92,   92,   95,   90,   90,   90,   90,   89,   89,   88,
 /*   150 */    88,   88,   87,  341,  939,  939,  317,  260,  415,  400,
 /*   160 */   398,   58,  737,  737,   93,   94,   84,  823,  823,  835,
 /*   170 */   838,  827,  827,   91,   91,   92,   92,   92,   92,   57,
 /*   180 */    90,   90,   90,   90,   89,   89,   88,   88,   88,   87,
 /*   190 */   341,  317, 1253,  928,  344,  269,  940,  941,  242,   93,
 /*   200 */    94,   84,  823,  823,  835,  838,  827,  827,   91,   91,
 /*   210 */    92,   92,   92,   92,  293,   90,   90,   90,   90,   89,
 /*   220 */    89,   88,   88,   88,   87,  341,  317,  919, 1303,  793,
 /*   230 */   691, 1303,  724,  724,   93,   94,   84,  823,  823,  835,
 /*   240 */   838,  827,  827,   91,   91,   92,   92,   92,   92,  337,
 /*   250 */    90,   90,   90,   90,   89,   89,   88,   88,   88,   87,
 /*   260 */   341,  317,  114,  919, 1304,  684,  395, 1304,  124,   93,
 /*   270 */    94,   84,  823,  823,  835,  838,  827,  827,   91,   91,
 /*   280 */    92,   92,   92,   92,  683,   90,   90,   90,   90,   89,
 /*   290 */    89,   88,   88,   88,   87,  341,  317,   86,   83,  169,
 /*   300 */   801,  917,  234,  399,   93,   94,   84,  823,  823,  835,
 /*   310 */   838,  827,  827,   91,   91,   92,   92,   92,   92,  686,
 /*   320 */    90,   90,   90,   90,   89,   89,   88,   88,   88,   87,
 /*   330 */   341,  317,  436,  742,   86,   83,  169,  917,  741,   93,
 /*   340 */    94,   84,  823,  823,  835,  838,  827,  827,   91,   91,
 /*   350 */    92,   92,   92,   92,  902,   90,   90,   90,   90,   89,
 /*   360 */    89,   88,   88,   88,   87,  341,  317,  321,  434,  434,
 /*   370 */   434,    1,  722,  722,   93,   94,   84,  823,  823,  835,
 /*   380 */   838,  827,  827,   91,   91,   92,   92,   92,   92,  190,
 /*   390 */    90,   90,   90,   90,   89,   89,   88,   88,   88,   87,
 /*   400 */   341,  317,  685,  292,  939,  939,  150,  977,  310,   93,
 /*   410 */    94,   84,  823,  823,  835,  838,  827,  827,   91,   91,
 /*   420 */    92,   92,   92,   92,  437,   90,   90,   90,   90,   89,
 /*   430 */    89,   88,   88,   88,   87,  341,  926,    2,  372,  719,
 /*   440 */   698,  369,  950,  317,   49,   49,  940,  941,  719,  177,
 /*   450 */    72,   93,   94,   84,  823,  823,  835,  838,  827,  827,
 /*   460 */    91,   91,   92,   92,   92,   92,  322,   90,   90,   90,
 /*   470 */    90,   89,   89,   88,   88,   88,   87,  341,  317,  415,
 /*   480 */   405,  824,  824,  836,  839,   75,   93,   82,   84,  823,
 /*   490 */   823,  835,  838,  827,  827,   91,   91,   92,   92,   92,
 /*   500 */    92,  430,   90,   90,   90,   90,   89,   89,   88,   88,
 /*   510 */    88,   87,  341,  317,  340,  340,  340,  658,  659,  660,
 /*   520 */   333,  288,   94,   84,  823,  823,  835,  838,  827,  827,
 /*   530 */    91,   91,   92,   92,   92,   92,  437,   90,   90,   90,
 /*   540 */    90,   89,   89,   88,   88,   88,   87,  341,  317,  882,
 /*   550 */   882,  375,  828,   66,  330,  409,   49,   49,   84,  823,
 /*   560 */   823,  835,  838,  827,  827,   91,   91,   92,   92,   92,
 /*   570 */    92,  351,   90,   90,   90,   90,   89,   89,   88,   88,
 /*   580 */    88,   87,  341,   80,  432,  742,    3, 1180,  351,  350,
 /*   590 */   741,  334,  796,  939,  939,  761,   80,  432,  278,    3,
 /*   600 */   204,  161,  279,  393,  274,  392,  191,  362,  437,  277,
 /*   610 */   745,   77,   78,  272,  800,  254,  355,  243,   79,  342,
 /*   620 */   342,   86,   83,  169,   77,   78,  234,  399,   49,   49,
 /*   630 */   435,   79,  342,  342,  437,  940,  941,  186,  442,  655,
 /*   640 */   390,  387,  386,  435,  235,  213,  108,  421,  761,  351,
 /*   650 */   437,  385,  167,  732,   10,   10,  124,  124,  671,  814,
 /*   660 */   421,  439,  438,  415,  414,  802,  362,  168,  327,  124,
 /*   670 */    49,   49,  814,  219,  439,  438,  800,  186,  802,  326,
 /*   680 */   390,  387,  386,  437, 1248, 1248,   23,  939,  939,   80,
 /*   690 */   432,  385,    3,  761,  416,  876,  807,  807,  807,  809,
 /*   700 */    19,  290,  149,   49,   49,  415,  396,  260,  910,  807,
 /*   710 */   807,  807,  809,   19,  312,  237,  145,   77,   78,  746,
 /*   720 */   168,  702,  437,  149,   79,  342,  342,  114,  358,  940,
 /*   730 */   941,  302,  223,  397,  345,  313,  435,  260,  415,  417,
 /*   740 */   858,  374,   31,   31,   80,  432,  761,    3,  348,   92,
 /*   750 */    92,   92,   92,  421,   90,   90,   90,   90,   89,   89,
 /*   760 */    88,   88,   88,   87,  341,  814,  114,  439,  438,  796,
 /*   770 */   367,  802,   77,   78,  701,  796,  124, 1187,  220,   79,
 /*   780 */   342,  342,  124,  747,  734,  939,  939,  775,  404,  939,
 /*   790 */   939,  435,  254,  360,  253,  402,  895,  346,  254,  360,
 /*   800 */   253,  774,  807,  807,  807,  809,   19,  800,  421,   90,
 /*   810 */    90,   90,   90,   89,   89,   88,   88,   88,   87,  341,
 /*   820 */   814,  114,  439,  438,  939,  939,  802,  940,  941,  114,
 /*   830 */   437,  940,  941,   86,   83,  169,  192,  166,  309,  979,
 /*   840 */    70,  432,  700,    3,  382,  870,  238,   86,   83,  169,
 /*   850 */    10,   10,  361,  406,  763,  190,  222,  807,  807,  807,
 /*   860 */   809,   19,  870,  872,  329,   24,  940,  941,   77,   78,
 /*   870 */   359,  437,  335,  260,  218,   79,  342,  342,  437,  307,
 /*   880 */   306,  305,  207,  303,  339,  338,  668,  435,  339,  338,
 /*   890 */   407,   10,   10,  762,  216,  216,  939,  939,   49,   49,
 /*   900 */   437,  260,   97,  241,  421,  225,  402,  189,  188,  187,
 /*   910 */   309,  918,  980,  149,  221,  898,  814,  868,  439,  438,
 /*   920 */    10,   10,  802,  870,  915,  316,  898,  163,  162,  171,
 /*   930 */   249,  240,  322,  410,  412,  687,  687,  272,  940,  941,
 /*   940 */   239,  965,  901,  437,  226,  403,  226,  437,  963,  367,
 /*   950 */   964,  173,  248,  807,  807,  807,  809,   19,  174,  367,
 /*   960 */   899,  124,  172,   48,   48,    9,    9,   35,   35,  966,
 /*   970 */   966,  899,  363,  966,  966,  814,  900,  808,  725,  939,
 /*   980 */   939,  802,  895,  318,  980,  324,  125,  900,  726,  420,
 /*   990 */    92,   92,   92,   92,   85,   90,   90,   90,   90,   89,
 /*  1000 */    89,   88,   88,   88,   87,  341,  216,  216,  437,  946,
 /*  1010 */   349,  292,  807,  807,  807,  114,  291,  693,  402,  705,
 /*  1020 */   890,  940,  941,  437,  245,  889,  247,  437,   36,   36,
 /*  1030 */   437,  353,  391,  437,  260,  252,  260,  437,  361,  437,
 /*  1040 */   706,  437,  370,   12,   12,  224,  437,   27,   27,  437,
 /*  1050 */    37,   37,  437,   38,   38,  752,  368,   39,   39,   28,
 /*  1060 */    28,   29,   29,  215,  166,  331,   40,   40,  437,   41,
 /*  1070 */    41,  437,   42,   42,  437,  866,  246,  731,  437,  879,
 /*  1080 */   437,  256,  437,  878,  437,  267,  437,  261,   11,   11,
 /*  1090 */   437,   43,   43,  437,   99,   99,  437,  373,   44,   44,
 /*  1100 */    45,   45,   32,   32,   46,   46,   47,   47,  437,  426,
 /*  1110 */    33,   33,  776,  116,  116,  437,  117,  117,  437,  124,
 /*  1120 */   437,  777,  437,  260,  437,  957,  437,  352,  118,  118,
 /*  1130 */   437,  195,  437,  111,  437,   53,   53,  264,   34,   34,
 /*  1140 */   100,  100,   50,   50,  101,  101,  102,  102,  437,  260,
 /*  1150 */    98,   98,  115,  115,  113,  113,  437,  262,  437,  265,
 /*  1160 */   437,  943,  958,  437,  727,  437,  681,  437,  106,  106,
 /*  1170 */    68,  437,  893,  730,  437,  365,  105,  105,  103,  103,
 /*  1180 */   104,  104,  217,   52,   52,   54,   54,   51,   51,  694,
 /*  1190 */   259,   26,   26,  266,   30,   30,  677,  323,  433,  323,
 /*  1200 */   674,  423,  427,  943,  958,  114,  114,  431,  681,  865,
 /*  1210 */  1277,  233,  366,  714,  112,   20,  154,  704,  703,  810,
 /*  1220 */   914,   55,  159,  311,  798,  255,  383,  194,   68,  200,
 /*  1230 */    21,  694,  268,  114,  114,  114,  270,  711,  712,   68,
 /*  1240 */   114,  739,  770,  715,   71,  194,  861,  875,  875,  200,
 /*  1250 */   696,  865,  874,  874,  679,  699,  273,  110,  229,  419,
 /*  1260 */   768,  810,  799,  378,  748,  759,  418,  210,  294,  281,
 /*  1270 */   295,  806,  283,  682,  676,  665,  664,  666,  933,  151,
 /*  1280 */   285,    7, 1267,  308,  251,  790,  354,  244,  892,  364,
 /*  1290 */   287,  422,  300,  164,  160,  936,  974,  127,  197,  137,
 /*  1300 */   909,  907,  971,  388,  276,  863,  862,   56,  698,  325,
 /*  1310 */   148,   59,  122,   66,  356,  381,  357,  176,  152,   62,
 /*  1320 */   371,  130,  877,  181,  377,  760,  211,  182,  132,  133,
 /*  1330 */   134,  135,  258,  146,  140,  795,  787,  263,  183,  379,
 /*  1340 */   667,  394,  184,  332,  894,  314,  718,  717,  857,  716,
 /*  1350 */   696,  315,  709,  690,   65,  196,    6,  408,  289,  708,
 /*  1360 */   275,  689,  688,  948,  756,  757,  280,  282,  425,  755,
 /*  1370 */   284,  336,   73,   67,  754,  429,  411,   96,  286,  413,
 /*  1380 */   205,  934,  673,   22,  209,  440,  119,  120,  109,  206,
 /*  1390 */   208,  441,  662,  661,  656,  843,  654,  343,  158,  236,
 /*  1400 */   170,  347,  107,  227,  121,  738,  873,  298,  296,  297,
 /*  1410 */   299,  871,  794,  128,  129,  728,  230,  131,  175,  250,
 /*  1420 */   888,  136,  138,  231,  232,  139,   60,   61,  891,  178,
 /*  1430 */   179,  887,    8,   13,  180,  257,  880,  968,  194,  141,
 /*  1440 */   142,  376,  153,  670,  380,  185,  143,  277,   63,  384,
 /*  1450 */    14,  707,  271,   15,  389,   64,  319,  320,  126,  228,
 /*  1460 */   813,  812,  841,  736,  123,   16,  401,  740,    4,  769,
 /*  1470 */   165,  212,  214,  193,  144,  764,   71,   68,   17,   18,
 /*  1480 */   856,  842,  840,  897,  845,  896,  199,  198,  923,  155,
 /*  1490 */   424,  929,  924,  156,  201,  202,  428,  844,  157,  203,
 /*  1500 */   811,  680,   81, 1269, 1268,  301,  304,






};
static const YYCODETYPE yy_lookahead[] = {
 /*     0 */    19,   95,   53,   97,   22,   24,   24,  101,   27,   28,
 /*    10 */    29,   30,   31,   32,   33,   34,   35,   36,   37,   38,
 /*    20 */    39,   40,   41,  152,   43,   44,   45,   46,   47,   48,
 /*    30 */    49,   50,   51,   52,   53,   19,   55,   55,  132,  133,
 /*    40 */   134,    1,    2,   27,   28,   29,   30,   31,   32,   33,
................................................................................
 /*    50 */    34,   35,   36,   37,   38,   39,   40,   41,  187,   43,
 /*    60 */    44,   45,   46,   47,   48,   49,   50,   51,   52,   53,
 /*    70 */    47,   48,   49,   50,   51,   52,   53,   61,   97,   97,
 /*    80 */    19,   49,   50,   51,   52,   53,   70,   26,   27,   28,
 /*    90 */    29,   30,   31,   32,   33,   34,   35,   36,   37,   38,
 /*   100 */    39,   40,   41,  152,   43,   44,   45,   46,   47,   48,
 /*   110 */    49,   50,   51,   52,   53,  144,  145,  146,  147,   19,
 /*   120 */   137,   22,  139,  172,  173,   52,   53,   27,   28,   29,
 /*   130 */    30,   31,   32,   33,   34,   35,   36,   37,   38,   39,
 /*   140 */    40,   41,   81,   43,   44,   45,   46,   47,   48,   49,
 /*   150 */    50,   51,   52,   53,   55,   56,   19,  152,  207,  208,
 /*   160 */   115,   24,  117,  118,   27,   28,   29,   30,   31,   32,
 /*   170 */    33,   34,   35,   36,   37,   38,   39,   40,   41,   79,
 /*   180 */    43,   44,   45,   46,   47,   48,   49,   50,   51,   52,
 /*   190 */    53,   19,    0,    1,    2,   23,   97,   98,  193,   27,
 /*   200 */    28,   29,   30,   31,   32,   33,   34,   35,   36,   37,
 /*   210 */    38,   39,   40,   41,  152,   43,   44,   45,   46,   47,
 /*   220 */    48,   49,   50,   51,   52,   53,   19,   22,   23,  163,
 /*   230 */    23,   26,  190,  191,   27,   28,   29,   30,   31,   32,
 /*   240 */    33,   34,   35,   36,   37,   38,   39,   40,   41,  187,
 /*   250 */    43,   44,   45,   46,   47,   48,   49,   50,   51,   52,
 /*   260 */    53,   19,  196,   22,   23,   23,   49,   26,   92,   27,
 /*   270 */    28,   29,   30,   31,   32,   33,   34,   35,   36,   37,
 /*   280 */    38,   39,   40,   41,  172,   43,   44,   45,   46,   47,
 /*   290 */    48,   49,   50,   51,   52,   53,   19,  221,  222,  223,
 /*   300 */    23,   96,  119,  120,   27,   28,   29,   30,   31,   32,
 /*   310 */    33,   34,   35,   36,   37,   38,   39,   40,   41,  172,
 /*   320 */    43,   44,   45,   46,   47,   48,   49,   50,   51,   52,
 /*   330 */    53,   19,  152,  116,  221,  222,  223,   96,  121,   27,
 /*   340 */    28,   29,   30,   31,   32,   33,   34,   35,   36,   37,
 /*   350 */    38,   39,   40,   41,  241,   43,   44,   45,   46,   47,
 /*   360 */    48,   49,   50,   51,   52,   53,   19,  157,  168,  169,
 /*   370 */   170,   22,  190,  191,   27,   28,   29,   30,   31,   32,
 /*   380 */    33,   34,   35,   36,   37,   38,   39,   40,   41,   30,
 /*   390 */    43,   44,   45,   46,   47,   48,   49,   50,   51,   52,
 /*   400 */    53,   19,  172,  152,   55,   56,   24,  247,  248,   27,
 /*   410 */    28,   29,   30,   31,   32,   33,   34,   35,   36,   37,
 /*   420 */    38,   39,   40,   41,  152,   43,   44,   45,   46,   47,
 /*   430 */    48,   49,   50,   51,   52,   53,  146,  147,  228,  179,
 /*   440 */   180,  231,  185,   19,  172,  173,   97,   98,  188,   26,
 /*   450 */   138,   27,   28,   29,   30,   31,   32,   33,   34,   35,
 /*   460 */    36,   37,   38,   39,   40,   41,  107,   43,   44,   45,
 /*   470 */    46,   47,   48,   49,   50,   51,   52,   53,   19,  207,

 /*   480 */   208,   30,   31,   32,   33,  138,   27,   28,   29,   30,
 /*   490 */    31,   32,   33,   34,   35,   36,   37,   38,   39,   40,
 /*   500 */    41,  250,   43,   44,   45,   46,   47,   48,   49,   50,
 /*   510 */    51,   52,   53,   19,  168,  169,  170,    7,    8,    9,
 /*   520 */    19,  152,   28,   29,   30,   31,   32,   33,   34,   35,
 /*   530 */    36,   37,   38,   39,   40,   41,  152,   43,   44,   45,
 /*   540 */    46,   47,   48,   49,   50,   51,   52,   53,   19,  108,
 /*   550 */   109,  110,  101,  130,   53,  152,  172,  173,   29,   30,
 /*   560 */    31,   32,   33,   34,   35,   36,   37,   38,   39,   40,
 /*   570 */    41,  152,   43,   44,   45,   46,   47,   48,   49,   50,
 /*   580 */    51,   52,   53,   19,   20,  116,   22,   23,  169,  170,
 /*   590 */   121,  207,   85,   55,   56,   26,   19,   20,  101,   22,
 /*   600 */    99,  100,  101,  102,  103,  104,  105,  152,  152,  112,




 /*   610 */   210,   47,   48,  112,  152,  108,  109,  110,   54,   55,
 /*   620 */    56,  221,  222,  223,   47,   48,  119,  120,  172,  173,
 /*   630 */    66,   54,   55,   56,  152,   97,   98,   99,  148,  149,
 /*   640 */   102,  103,  104,   66,  154,   23,  156,   83,   26,  230,
 /*   650 */   152,  113,  152,  163,  172,  173,   92,   92,   21,   95,
 /*   660 */    83,   97,   98,  207,  208,  101,  152,   98,  186,   92,
 /*   670 */   172,  173,   95,  218,   97,   98,  152,   99,  101,  217,
 /*   680 */   102,  103,  104,  152,  119,  120,  196,   55,   56,   19,
 /*   690 */    20,  113,   22,  124,  163,   11,  132,  133,  134,  135,
 /*   700 */   136,  152,  152,  172,  173,  207,  208,  152,  152,  132,
 /*   710 */   133,  134,  135,  136,  164,  152,   84,   47,   48,   49,
 /*   720 */    98,  181,  152,  152,   54,   55,   56,  196,   91,   97,
 /*   730 */    98,  160,  218,  163,  244,  164,   66,  152,  207,  208,
 /*   740 */   103,  217,  172,  173,   19,   20,  124,   22,  193,   38,
 /*   750 */    39,   40,   41,   83,   43,   44,   45,   46,   47,   48,
 /*   760 */    49,   50,   51,   52,   53,   95,  196,   97,   98,   85,
 /*   770 */   152,  101,   47,   48,  181,   85,   92,  140,  193,   54,
 /*   780 */    55,   56,   92,   49,  195,   55,   56,  175,  163,   55,
 /*   790 */    56,   66,  108,  109,  110,  206,  163,  242,  108,  109,
 /*   800 */   110,  175,  132,  133,  134,  135,  136,  152,   83,   43,
 /*   810 */    44,   45,   46,   47,   48,   49,   50,   51,   52,   53,


 /*   820 */    95,  196,   97,   98,   55,   56,  101,   97,   98,  196,
 /*   830 */   152,   97,   98,  221,  222,  223,  211,  212,   22,   23,
 /*   840 */    19,   20,  181,   22,   19,  152,  152,  221,  222,  223,
 /*   850 */   172,  173,  219,   19,  124,   30,  238,  132,  133,  134,
 /*   860 */   135,  136,  169,  170,  186,  232,   97,   98,   47,   48,
 /*   870 */   237,  152,  217,  152,    5,   54,   55,   56,  152,   10,
 /*   880 */    11,   12,   13,   14,   47,   48,   17,   66,   47,   48,
 /*   890 */    56,  172,  173,  124,  194,  195,   55,   56,  172,  173,
 /*   900 */   152,  152,   22,  152,   83,  186,  206,  108,  109,  110,
 /*   910 */    22,   23,   96,  152,  193,   12,   95,  152,   97,   98,
 /*   920 */   172,  173,  101,  230,  152,  164,   12,   47,   48,   60,
 /*   930 */   152,   62,  107,  207,  186,   55,   56,  112,   97,   98,
 /*   940 */    71,  100,  193,  152,  183,  152,  185,  152,  107,  152,
 /*   950 */   109,   82,   16,  132,  133,  134,  135,  136,   89,  152,
 /*   960 */    57,   92,   93,  172,  173,  172,  173,  172,  173,  132,
 /*   970 */   133,   57,  152,  132,  133,   95,   73,   97,   75,   55,
 /*   980 */    56,  101,  163,  114,   96,  245,  246,   73,   85,   75,
 /*   990 */    38,   39,   40,   41,   42,   43,   44,   45,   46,   47,
 /*  1000 */    48,   49,   50,   51,   52,   53,  194,  195,  152,  171,
 /*  1010 */   141,  152,  132,  133,  134,  196,  225,  179,  206,   65,
 /*  1020 */   152,   97,   98,  152,   88,  152,   90,  152,  172,  173,
 /*  1030 */   152,  219,   78,  152,  152,  238,  152,  152,  219,  152,
 /*  1040 */    86,  152,  152,  172,  173,  238,  152,  172,  173,  152,
 /*  1050 */   172,  173,  152,  172,  173,  213,  237,  172,  173,  172,
 /*  1060 */   173,  172,  173,  211,  212,  111,  172,  173,  152,  172,
 /*  1070 */   173,  152,  172,  173,  152,  193,  140,  193,  152,   59,
 /*  1080 */   152,  152,  152,   63,  152,   16,  152,  152,  172,  173,
 /*  1090 */   152,  172,  173,  152,  172,  173,  152,   77,  172,  173,
 /*  1100 */   172,  173,  172,  173,  172,  173,  172,  173,  152,  250,
 /*  1110 */   172,  173,   61,  172,  173,  152,  172,  173,  152,   92,
 /*  1120 */   152,   70,  152,  152,  152,   26,  152,  100,  172,  173,
 /*  1130 */   152,   24,  152,   22,  152,  172,  173,  152,  172,  173,
 /*  1140 */   172,  173,  172,  173,  172,  173,  172,  173,  152,  152,
 /*  1150 */   172,  173,  172,  173,  172,  173,  152,   88,  152,   90,
 /*  1160 */   152,   55,   55,  152,  193,  152,   55,  152,  172,  173,
 /*  1170 */    26,  152,  163,  163,  152,   19,  172,  173,  172,  173,
 /*  1180 */   172,  173,   22,  172,  173,  172,  173,  172,  173,   55,
 /*  1190 */   193,  172,  173,  152,  172,  173,  166,  167,  166,  167,
 /*  1200 */   163,  163,  163,   97,   97,  196,  196,  163,   97,   55,
 /*  1210 */    23,  199,   56,   26,   22,   22,   24,  100,  101,   55,
 /*  1220 */    23,  209,  123,   26,   23,   23,   23,   26,   26,   26,
 /*  1230 */    37,   97,  152,  196,  196,  196,   23,    7,    8,   26,
 /*  1240 */   196,   23,   23,  152,   26,   26,   23,  132,  133,   26,
 /*  1250 */   106,   97,  132,  133,   23,  152,  152,   26,  210,  191,
 /*  1260 */   152,   97,  152,  234,  152,  152,  152,  233,  152,  210,
 /*  1270 */   152,  152,  210,  152,  152,  152,  152,  152,  152,  197,
 /*  1280 */   210,  198,  122,  150,  239,  201,  214,  214,  201,  239,
 /*  1290 */   214,  227,  200,  184,  198,  155,   67,  243,  122,   22,
 /*  1300 */   159,  159,   69,  176,  175,  175,  175,  240,  180,  159,
 /*  1310 */   220,  240,   27,  130,   18,   18,  159,  158,  220,  137,
 /*  1320 */   159,  189,  236,  158,   74,  159,  159,  158,  192,  192,
 /*  1330 */   192,  192,  235,   22,  189,  189,  201,  159,  158,  177,
 /*  1340 */   159,  107,  158,   76,  201,  177,  174,  174,  201,  174,
 /*  1350 */   106,  177,  182,  174,  107,  159,   22,  125,  159,  182,
 /*  1360 */   174,  176,  174,  174,  216,  216,  215,  215,  177,  216,
 /*  1370 */   215,   53,  137,  128,  216,  177,  127,  129,  215,  126,
 /*  1380 */    25,   13,  162,   26,    6,  161,  165,  165,  178,  153,
 /*  1390 */   153,  151,  151,  151,  151,  224,    4,    3,   22,  142,
 /*  1400 */    15,   94,   16,  178,  165,  205,   23,  202,  204,  203,
 /*  1410 */   201,   23,  120,  131,  111,   20,  226,  123,  125,   16,
 /*  1420 */     1,  123,  131,  229,  229,  111,   37,   37,   56,   64,
 /*  1430 */   122,    1,    5,   22,  107,  140,   80,   87,   26,   80,
 /*  1440 */   107,   72,   24,   20,   19,  105,   22,  112,   22,   79,
 /*  1450 */    22,   58,   23,   22,   79,   22,  249,  249,  246,   79,
 /*  1460 */    23,   23,   23,  116,   68,   22,   26,   23,   22,   56,






 /*  1470 */   122,   23,   23,   64,   22,  124,   26,   26,   64,   64,
 /*  1480 */    23,   23,   23,   23,   11,   23,   22,   26,   23,   22,
 /*  1490 */    24,    1,   23,   22,   26,  122,   24,   23,   22,  122,
 /*  1500 */    23,   23,   22,  122,  122,   23,   15,


};
#define YY_SHIFT_USE_DFLT (-95)
#define YY_SHIFT_COUNT (442)
#define YY_SHIFT_MIN   (-94)
#define YY_SHIFT_MAX   (1491)
static const short yy_shift_ofst[] = {
 /*     0 */    40,  564,  869,  577,  725,  725,  725,  725,  690,  -19,

 /*    10 */    16,   16,  100,  725,  725,  725,  725,  725,  725,  725,
 /*    20 */   841,  841,  538,  507,  684,  565,   61,  137,  172,  207,

 /*    30 */   242,  277,  312,  347,  382,  424,  424,  424,  424,  424,
 /*    40 */   424,  424,  424,  424,  424,  424,  424,  424,  424,  424,
 /*    50 */   459,  424,  494,  529,  529,  670,  725,  725,  725,  725,
 /*    60 */   725,  725,  725,  725,  725,  725,  725,  725,  725,  725,
 /*    70 */   725,  725,  725,  725,  725,  725,  725,  725,  725,  725,
 /*    80 */   725,  725,  725,  725,  821,  725,  725,  725,  725,  725,
 /*    90 */   725,  725,  725,  725,  725,  725,  725,  725,  952,  711,
 /*   100 */   711,  711,  711,  711,  766,   23,   32,  924,  637,  825,
 /*   110 */   837,  837,  924,   73,  183,  -51,  -95,  -95,  -95,  501,
 /*   120 */   501,  501,  903,  903,  632,  205,  241,  924,  924,  924,
 /*   130 */   924,  924,  924,  924,  924,  924,  924,  924,  924,  924,
 /*   140 */   924,  924,  924,  924,  924,  924,  924,  192, 1027, 1106,
 /*   150 */  1106,  183,  176,  176,  176,  176,  176,  176,  -95,  -95,
 /*   160 */   -95,  880,  -94,  -94,  578,  734,   99,  730,  769,  349,
 /*   170 */   924,  924,  924,  924,  924,  924,  924,  924,  924,  924,
 /*   180 */   924,  924,  924,  924,  924,  924,  924,  954,  954,  954,
 /*   190 */   924,  924,  622,  924,  924,  924,  -18,  924,  924,  914,
 /*   200 */   924,  924,  924,  924,  924,  924,  924,  924,  924,  924,
 /*   210 */   441, 1020, 1107, 1107, 1107,  569,   45,  217,  510,  423,
 /*   220 */   834,  834, 1156,  423, 1156, 1144, 1187,  359, 1051,  834,
 /*   230 */   -17, 1051, 1051, 1099,  469, 1192, 1229, 1176, 1176, 1233,
 /*   240 */  1233, 1176, 1277, 1285, 1183, 1296, 1296, 1296, 1296, 1176,
 /*   250 */  1297, 1183, 1277, 1285, 1285, 1183, 1176, 1297, 1182, 1250,
 /*   260 */  1176, 1176, 1297, 1311, 1176, 1297, 1176, 1297, 1311, 1234,
 /*   270 */  1234, 1234, 1267, 1311, 1234, 1244, 1234, 1267, 1234, 1234,
 /*   280 */  1232, 1247, 1232, 1247, 1232, 1247, 1232, 1247, 1176, 1334,
 /*   290 */  1176, 1235, 1311, 1318, 1318, 1311, 1248, 1253, 1245, 1249,
 /*   300 */  1183, 1355, 1357, 1368, 1368, 1378, 1378, 1378, 1378,  -95,
 /*   310 */   -95,  -95,  -95,  -95,  -95,  -95,  -95,  451,  936,  816,
 /*   320 */   888, 1069,  799, 1111, 1197, 1193, 1201, 1202, 1203, 1213,
 /*   330 */  1134, 1117, 1230,  497, 1218, 1219, 1154, 1223, 1115, 1120,
 /*   340 */  1231, 1164, 1160, 1392, 1394, 1376, 1257, 1385, 1307, 1386,
 /*   350 */  1383, 1388, 1292, 1282, 1303, 1294, 1395, 1293, 1403, 1419,
 /*   360 */  1298, 1291, 1389, 1390, 1314, 1372, 1365, 1308, 1430, 1427,
 /*   370 */  1411, 1327, 1295, 1356, 1412, 1359, 1350, 1369, 1333, 1418,
 /*   380 */  1423, 1425, 1335, 1340, 1424, 1370, 1426, 1428, 1429, 1431,
 /*   390 */  1375, 1393, 1433, 1380, 1396, 1437, 1438, 1439, 1347, 1443,
 /*   400 */  1444, 1446, 1440, 1348, 1448, 1449, 1413, 1409, 1452, 1351,
 /*   410 */  1450, 1414, 1451, 1415, 1457, 1450, 1458, 1459, 1460, 1461,
 /*   420 */  1462, 1464, 1473, 1465, 1467, 1466, 1468, 1469, 1471, 1472,
 /*   430 */  1468, 1474, 1476, 1477, 1478, 1480, 1373, 1377, 1381, 1382,
 /*   440 */  1482, 1491, 1490,







};
#define YY_REDUCE_USE_DFLT (-130)
#define YY_REDUCE_COUNT (316)
#define YY_REDUCE_MIN   (-129)
#define YY_REDUCE_MAX   (1243)
static const short yy_reduce_ofst[] = {
 /*     0 */   -29,  531,  490,  570,  -49,  272,  456,  498,  633,  400,
 /*    10 */   612,  626,  113,  482,  678,  719,  384,  726,  748,  791,
 /*    20 */   419,  693,  761,  812,  819,  625,   76,   76,   76,   76,



 /*    30 */    76,   76,   76,   76,   76,   76,   76,   76,   76,   76,
 /*    40 */    76,   76,   76,   76,   76,   76,   76,   76,   76,   76,
 /*    50 */    76,   76,   76,   76,   76,  793,  795,  856,  871,  875,
 /*    60 */   878,  881,  885,  887,  889,  894,  897,  900,  916,  919,
 /*    70 */   922,  926,  928,  930,  932,  934,  938,  941,  944,  956,
 /*    80 */   963,  966,  968,  970,  972,  974,  978,  980,  982,  996,
 /*    90 */  1004, 1006, 1008, 1011, 1013, 1015, 1019, 1022,   76,   76,
 /*   100 */    76,   76,   76,   76,   76,   76,   76,  555,  210,  260,
 /*   110 */   200,  346,  571,   76,  700,   76,   76,   76,   76,  838,
 /*   120 */   838,  838,   42,  182,  251,  160,  160,  550,    5,  455,
 /*   130 */   585,  721,  749,  882,  884,  971,  618,  462,  797,  514,
 /*   140 */   807,  524,  997, -129,  655,  859,   62,  290,   66, 1030,
 /*   150 */  1032,  589, 1009, 1010, 1037, 1038, 1039, 1044,  740,  852,
 /*   160 */  1012,  112,  147,  230,  257,  180,  369,  403,  500,  549,
 /*   170 */   556,  563,  694,  751,  765,  772,  778,  820,  868,  873,
 /*   180 */   890,  929,  935,  985, 1041, 1080, 1091,  540,  593,  661,
 /*   190 */  1103, 1104,  842, 1108, 1110, 1112, 1048, 1113, 1114, 1068,
 /*   200 */  1116, 1118, 1119,  180, 1121, 1122, 1123, 1124, 1125, 1126,
 /*   210 */  1029, 1034, 1059, 1062, 1070,  842, 1082, 1083, 1133, 1084,
 /*   220 */  1072, 1073, 1045, 1087, 1050, 1127, 1109, 1128, 1129, 1076,
 /*   230 */  1064, 1130, 1131, 1092, 1096, 1140, 1054, 1141, 1142, 1067,
 /*   240 */  1071, 1150, 1090, 1132, 1135, 1136, 1137, 1138, 1139, 1157,
 /*   250 */  1159, 1143, 1098, 1145, 1146, 1147, 1161, 1165, 1086, 1097,
 /*   260 */  1166, 1167, 1169, 1162, 1178, 1180, 1181, 1184, 1168, 1172,
 /*   270 */  1173, 1175, 1170, 1174, 1179, 1185, 1186, 1177, 1188, 1189,
 /*   280 */  1148, 1151, 1149, 1152, 1153, 1155, 1158, 1163, 1196, 1171,
 /*   290 */  1199, 1190, 1191, 1194, 1195, 1198, 1200, 1204, 1206, 1205,
 /*   300 */  1209, 1220, 1224, 1236, 1237, 1240, 1241, 1242, 1243, 1207,
 /*   310 */  1208, 1212, 1221, 1222, 1210, 1225, 1239,








};
static const YYACTIONTYPE yy_default[] = {
 /*     0 */  1258, 1248, 1248, 1248, 1180, 1180, 1180, 1180, 1248, 1077,
 /*    10 */  1106, 1106, 1232, 1309, 1309, 1309, 1309, 1309, 1309, 1179,
 /*    20 */  1309, 1309, 1309, 1309, 1248, 1081, 1112, 1309, 1309, 1309,
 /*    30 */  1309, 1309, 1309, 1309, 1309, 1231, 1233, 1120, 1119, 1214,
 /*    40 */  1093, 1117, 1110, 1114, 1181, 1175, 1176, 1174, 1178, 1182,
 /*    50 */  1309, 1113, 1144, 1159, 1143, 1309, 1309, 1309, 1309, 1309,
 /*    60 */  1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309,
 /*    70 */  1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309,
 /*    80 */  1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309,
 /*    90 */  1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1153, 1158,
 /*   100 */  1165, 1157, 1154, 1146, 1145, 1147, 1148, 1309, 1000, 1048,
 /*   110 */  1309, 1309, 1309, 1149, 1309, 1150, 1162, 1161, 1160, 1239,
 /*   120 */  1266, 1265, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309,
 /*   130 */  1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309,
 /*   140 */  1309, 1309, 1309, 1309, 1309, 1309, 1309, 1258, 1248, 1006,
 /*   150 */  1006, 1309, 1248, 1248, 1248, 1248, 1248, 1248, 1244, 1081,
 /*   160 */  1072, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309,
 /*   170 */  1309, 1236, 1234, 1309, 1195, 1309, 1309, 1309, 1309, 1309,
 /*   180 */  1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309,
 /*   190 */  1309, 1309, 1309, 1309, 1309, 1309, 1077, 1309, 1309, 1309,
 /*   200 */  1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1260,
 /*   210 */  1309, 1209, 1077, 1077, 1077, 1079, 1061, 1071,  985, 1116,
 /*   220 */  1095, 1095, 1298, 1116, 1298, 1023, 1280, 1020, 1106, 1095,
 /*   230 */  1177, 1106, 1106, 1078, 1071, 1309, 1301, 1086, 1086, 1300,
 /*   240 */  1300, 1086, 1125, 1051, 1116, 1057, 1057, 1057, 1057, 1086,
 /*   250 */   997, 1116, 1125, 1051, 1051, 1116, 1086,  997, 1213, 1295,
 /*   260 */  1086, 1086,  997, 1188, 1086,  997, 1086,  997, 1188, 1049,
 /*   270 */  1049, 1049, 1038, 1188, 1049, 1023, 1049, 1038, 1049, 1049,
 /*   280 */  1099, 1094, 1099, 1094, 1099, 1094, 1099, 1094, 1086, 1183,
 /*   290 */  1086, 1309, 1188, 1192, 1192, 1188, 1111, 1100, 1109, 1107,
 /*   300 */  1116, 1003, 1041, 1263, 1263, 1259, 1259, 1259, 1259, 1306,
 /*   310 */  1306, 1244, 1275, 1275, 1025, 1025, 1275, 1309, 1309, 1309,
 /*   320 */  1309, 1309, 1309, 1270, 1309, 1197, 1309, 1309, 1309, 1309,
 /*   330 */  1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309,
 /*   340 */  1309, 1309, 1131, 1309,  981, 1241, 1309, 1309, 1240, 1309,
 /*   350 */  1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309,
 /*   360 */  1309, 1309, 1309, 1309, 1309, 1309, 1309, 1297, 1309, 1309,
 /*   370 */  1309, 1309, 1309, 1309, 1212, 1211, 1309, 1309, 1309, 1309,
 /*   380 */  1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309,
 /*   390 */  1309, 1309, 1309, 1309, 1309, 1309, 1309, 1309, 1063, 1309,
 /*   400 */  1309, 1309, 1284, 1309, 1309, 1309, 1309, 1309, 1309, 1309,
 /*   410 */  1108, 1309, 1101, 1309, 1309, 1288, 1309, 1309, 1309, 1309,
 /*   420 */  1309, 1309, 1309, 1309, 1309, 1309, 1250, 1309, 1309, 1309,
 /*   430 */  1249, 1309, 1309, 1309, 1309, 1309, 1133, 1309, 1132, 1136,
 /*   440 */  1309,  991, 1309,









};
/********** End of lemon-generated parsing tables *****************************/

/* The next table maps tokens (terminal symbols) into fallback tokens.  
** If a construct like the following:
** 
**      %fallback ID X Y Z.
................................................................................
  "CHECK",         "REFERENCES",    "AUTOINCR",      "ON",          
  "INSERT",        "DELETE",        "UPDATE",        "SET",         
  "DEFERRABLE",    "FOREIGN",       "DROP",          "UNION",       
  "ALL",           "EXCEPT",        "INTERSECT",     "SELECT",      
  "VALUES",        "DISTINCT",      "DOT",           "FROM",        
  "JOIN",          "USING",         "ORDER",         "GROUP",       
  "HAVING",        "LIMIT",         "WHERE",         "INTO",        
  "INTEGER",       "FLOAT",         "BLOB",          "VARIABLE",    
  "CASE",          "WHEN",          "THEN",          "ELSE",        
  "INDEX",         "ALTER",         "ADD",           "error",       
  "input",         "cmdlist",       "ecmd",          "explain",     
  "cmdx",          "cmd",           "transtype",     "trans_opt",   
  "nm",            "savepoint_opt",  "create_table",  "create_table_args",
  "createkw",      "temp",          "ifnotexists",   "dbnm",        
  "columnlist",    "conslist_opt",  "table_options",  "select",      
................................................................................
 /* 132 */ "limit_opt ::= LIMIT expr OFFSET expr",
 /* 133 */ "limit_opt ::= LIMIT expr COMMA expr",
 /* 134 */ "cmd ::= with DELETE FROM fullname indexed_opt where_opt",
 /* 135 */ "where_opt ::=",
 /* 136 */ "where_opt ::= WHERE expr",
 /* 137 */ "cmd ::= with UPDATE orconf fullname indexed_opt SET setlist where_opt",
 /* 138 */ "setlist ::= setlist COMMA nm EQ expr",

 /* 139 */ "setlist ::= nm EQ expr",

 /* 140 */ "cmd ::= with insert_cmd INTO fullname idlist_opt select",
 /* 141 */ "cmd ::= with insert_cmd INTO fullname idlist_opt DEFAULT VALUES",
 /* 142 */ "insert_cmd ::= INSERT orconf",
 /* 143 */ "insert_cmd ::= REPLACE",
 /* 144 */ "idlist_opt ::=",
 /* 145 */ "idlist_opt ::= LP idlist RP",
 /* 146 */ "idlist ::= idlist COMMA nm",
 /* 147 */ "idlist ::= nm",
 /* 148 */ "expr ::= LP expr RP",
 /* 149 */ "term ::= NULL",
 /* 150 */ "expr ::= ID|INDEXED",
 /* 151 */ "expr ::= JOIN_KW",
 /* 152 */ "expr ::= nm DOT nm",
 /* 153 */ "expr ::= nm DOT nm DOT nm",
 /* 154 */ "term ::= INTEGER|FLOAT|BLOB",

 /* 155 */ "term ::= STRING",

 /* 156 */ "expr ::= VARIABLE",
 /* 157 */ "expr ::= expr COLLATE ID|STRING",
 /* 158 */ "expr ::= CAST LP expr AS typetoken RP",
 /* 159 */ "expr ::= ID|INDEXED LP distinct exprlist RP",
 /* 160 */ "expr ::= ID|INDEXED LP STAR RP",
 /* 161 */ "term ::= CTIME_KW",

 /* 162 */ "expr ::= expr AND expr",
 /* 163 */ "expr ::= expr OR expr",
 /* 164 */ "expr ::= expr LT|GT|GE|LE expr",
 /* 165 */ "expr ::= expr EQ|NE expr",
 /* 166 */ "expr ::= expr BITAND|BITOR|LSHIFT|RSHIFT expr",
 /* 167 */ "expr ::= expr PLUS|MINUS expr",
 /* 168 */ "expr ::= expr STAR|SLASH|REM expr",
 /* 169 */ "expr ::= expr CONCAT expr",
 /* 170 */ "likeop ::= LIKE_KW|MATCH",
 /* 171 */ "likeop ::= NOT LIKE_KW|MATCH",
 /* 172 */ "expr ::= expr likeop expr",
 /* 173 */ "expr ::= expr likeop expr ESCAPE expr",
 /* 174 */ "expr ::= expr ISNULL|NOTNULL",
 /* 175 */ "expr ::= expr NOT NULL",
 /* 176 */ "expr ::= expr IS expr",
 /* 177 */ "expr ::= expr IS NOT expr",
 /* 178 */ "expr ::= NOT expr",
 /* 179 */ "expr ::= BITNOT expr",
 /* 180 */ "expr ::= MINUS expr",
 /* 181 */ "expr ::= PLUS expr",
 /* 182 */ "between_op ::= BETWEEN",
 /* 183 */ "between_op ::= NOT BETWEEN",
 /* 184 */ "expr ::= expr between_op expr AND expr",
 /* 185 */ "in_op ::= IN",
 /* 186 */ "in_op ::= NOT IN",
 /* 187 */ "expr ::= expr in_op LP exprlist RP",
 /* 188 */ "expr ::= LP select RP",
 /* 189 */ "expr ::= expr in_op LP select RP",
 /* 190 */ "expr ::= expr in_op nm dbnm paren_exprlist",
 /* 191 */ "expr ::= EXISTS LP select RP",
 /* 192 */ "expr ::= CASE case_operand case_exprlist case_else END",
 /* 193 */ "case_exprlist ::= case_exprlist WHEN expr THEN expr",
 /* 194 */ "case_exprlist ::= WHEN expr THEN expr",
 /* 195 */ "case_else ::= ELSE expr",
 /* 196 */ "case_else ::=",
 /* 197 */ "case_operand ::= expr",
 /* 198 */ "case_operand ::=",
 /* 199 */ "exprlist ::=",
 /* 200 */ "nexprlist ::= nexprlist COMMA expr",
 /* 201 */ "nexprlist ::= expr",
 /* 202 */ "paren_exprlist ::=",
 /* 203 */ "paren_exprlist ::= LP exprlist RP",
 /* 204 */ "cmd ::= createkw uniqueflag INDEX ifnotexists nm dbnm ON nm LP sortlist RP where_opt",
 /* 205 */ "uniqueflag ::= UNIQUE",
 /* 206 */ "uniqueflag ::=",
 /* 207 */ "eidlist_opt ::=",
 /* 208 */ "eidlist_opt ::= LP eidlist RP",
 /* 209 */ "eidlist ::= eidlist COMMA nm collate sortorder",
 /* 210 */ "eidlist ::= nm collate sortorder",
 /* 211 */ "collate ::=",
 /* 212 */ "collate ::= COLLATE ID|STRING",
 /* 213 */ "cmd ::= DROP INDEX ifexists fullname",
 /* 214 */ "cmd ::= VACUUM",
 /* 215 */ "cmd ::= VACUUM nm",
 /* 216 */ "cmd ::= PRAGMA nm dbnm",
 /* 217 */ "cmd ::= PRAGMA nm dbnm EQ nmnum",
 /* 218 */ "cmd ::= PRAGMA nm dbnm LP nmnum RP",
 /* 219 */ "cmd ::= PRAGMA nm dbnm EQ minus_num",
 /* 220 */ "cmd ::= PRAGMA nm dbnm LP minus_num RP",
 /* 221 */ "plus_num ::= PLUS INTEGER|FLOAT",
 /* 222 */ "minus_num ::= MINUS INTEGER|FLOAT",
 /* 223 */ "cmd ::= createkw trigger_decl BEGIN trigger_cmd_list END",
 /* 224 */ "trigger_decl ::= temp TRIGGER ifnotexists nm dbnm trigger_time trigger_event ON fullname foreach_clause when_clause",
 /* 225 */ "trigger_time ::= BEFORE",
 /* 226 */ "trigger_time ::= AFTER",
 /* 227 */ "trigger_time ::= INSTEAD OF",
 /* 228 */ "trigger_time ::=",
 /* 229 */ "trigger_event ::= DELETE|INSERT",
 /* 230 */ "trigger_event ::= UPDATE",
 /* 231 */ "trigger_event ::= UPDATE OF idlist",
 /* 232 */ "when_clause ::=",
 /* 233 */ "when_clause ::= WHEN expr",
 /* 234 */ "trigger_cmd_list ::= trigger_cmd_list trigger_cmd SEMI",
 /* 235 */ "trigger_cmd_list ::= trigger_cmd SEMI",
 /* 236 */ "trnm ::= nm DOT nm",
 /* 237 */ "tridxby ::= INDEXED BY nm",
 /* 238 */ "tridxby ::= NOT INDEXED",
 /* 239 */ "trigger_cmd ::= UPDATE orconf trnm tridxby SET setlist where_opt",
 /* 240 */ "trigger_cmd ::= insert_cmd INTO trnm idlist_opt select",
 /* 241 */ "trigger_cmd ::= DELETE FROM trnm tridxby where_opt",
 /* 242 */ "trigger_cmd ::= select",
 /* 243 */ "expr ::= RAISE LP IGNORE RP",
 /* 244 */ "expr ::= RAISE LP raisetype COMMA nm RP",
 /* 245 */ "raisetype ::= ROLLBACK",
 /* 246 */ "raisetype ::= ABORT",
 /* 247 */ "raisetype ::= FAIL",
 /* 248 */ "cmd ::= DROP TRIGGER ifexists fullname",
 /* 249 */ "cmd ::= ATTACH database_kw_opt expr AS expr key_opt",
 /* 250 */ "cmd ::= DETACH database_kw_opt expr",
 /* 251 */ "key_opt ::=",
 /* 252 */ "key_opt ::= KEY expr",
 /* 253 */ "cmd ::= REINDEX",
 /* 254 */ "cmd ::= REINDEX nm dbnm",
 /* 255 */ "cmd ::= ANALYZE",
 /* 256 */ "cmd ::= ANALYZE nm dbnm",
 /* 257 */ "cmd ::= ALTER TABLE fullname RENAME TO nm",
 /* 258 */ "cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt columnname carglist",
 /* 259 */ "add_column_fullname ::= fullname",
 /* 260 */ "cmd ::= create_vtab",
 /* 261 */ "cmd ::= create_vtab LP vtabarglist RP",
 /* 262 */ "create_vtab ::= createkw VIRTUAL TABLE ifnotexists nm dbnm USING nm",
 /* 263 */ "vtabarg ::=",
 /* 264 */ "vtabargtoken ::= ANY",
 /* 265 */ "vtabargtoken ::= lp anylist RP",
 /* 266 */ "lp ::= LP",
 /* 267 */ "with ::=",
 /* 268 */ "with ::= WITH wqlist",
 /* 269 */ "with ::= WITH RECURSIVE wqlist",
 /* 270 */ "wqlist ::= nm eidlist_opt AS LP select RP",
 /* 271 */ "wqlist ::= wqlist COMMA nm eidlist_opt AS LP select RP",
 /* 272 */ "input ::= cmdlist",
 /* 273 */ "cmdlist ::= cmdlist ecmd",
 /* 274 */ "cmdlist ::= ecmd",
 /* 275 */ "ecmd ::= SEMI",
 /* 276 */ "ecmd ::= explain cmdx SEMI",
 /* 277 */ "explain ::=",
 /* 278 */ "trans_opt ::=",
 /* 279 */ "trans_opt ::= TRANSACTION",
 /* 280 */ "trans_opt ::= TRANSACTION nm",
 /* 281 */ "savepoint_opt ::= SAVEPOINT",
 /* 282 */ "savepoint_opt ::=",
 /* 283 */ "cmd ::= create_table create_table_args",
 /* 284 */ "columnlist ::= columnlist COMMA columnname carglist",
 /* 285 */ "columnlist ::= columnname carglist",
 /* 286 */ "nm ::= ID|INDEXED",
 /* 287 */ "nm ::= STRING",
 /* 288 */ "nm ::= JOIN_KW",
 /* 289 */ "typetoken ::= typename",
 /* 290 */ "typename ::= ID|STRING",
 /* 291 */ "signed ::= plus_num",
 /* 292 */ "signed ::= minus_num",
 /* 293 */ "carglist ::= carglist ccons",
 /* 294 */ "carglist ::=",
 /* 295 */ "ccons ::= NULL onconf",
 /* 296 */ "conslist_opt ::= COMMA conslist",
 /* 297 */ "conslist ::= conslist tconscomma tcons",
 /* 298 */ "conslist ::= tcons",
 /* 299 */ "tconscomma ::=",
 /* 300 */ "defer_subclause_opt ::= defer_subclause",
 /* 301 */ "resolvetype ::= raisetype",
 /* 302 */ "selectnowith ::= oneselect",
 /* 303 */ "oneselect ::= values",
 /* 304 */ "sclp ::= selcollist COMMA",
 /* 305 */ "as ::= ID|STRING",
 /* 306 */ "expr ::= term",
 /* 307 */ "exprlist ::= nexprlist",
 /* 308 */ "nmnum ::= plus_num",
 /* 309 */ "nmnum ::= nm",
 /* 310 */ "nmnum ::= ON",
 /* 311 */ "nmnum ::= DELETE",
 /* 312 */ "nmnum ::= DEFAULT",
 /* 313 */ "plus_num ::= INTEGER|FLOAT",
 /* 314 */ "foreach_clause ::=",
 /* 315 */ "foreach_clause ::= FOR EACH ROW",
 /* 316 */ "trnm ::= nm",
 /* 317 */ "tridxby ::=",
 /* 318 */ "database_kw_opt ::= DATABASE",
 /* 319 */ "database_kw_opt ::=",
 /* 320 */ "kwcolumn_opt ::=",
 /* 321 */ "kwcolumn_opt ::= COLUMNKW",
 /* 322 */ "vtabarglist ::= vtabarg",
 /* 323 */ "vtabarglist ::= vtabarglist COMMA vtabarg",
 /* 324 */ "vtabarg ::= vtabarg vtabargtoken",
 /* 325 */ "anylist ::=",
 /* 326 */ "anylist ::= anylist LP anylist RP",
 /* 327 */ "anylist ::= anylist ANY",
};
#endif /* NDEBUG */


#if YYSTACKDEPTH<=0
/*
** Try to increase the size of the parser stack.  Return the number
................................................................................
  int i;
  int stateno = pParser->yytos->stateno;
 
  if( stateno>=YY_MIN_REDUCE ) return stateno;
  assert( stateno <= YY_SHIFT_COUNT );
  do{
    i = yy_shift_ofst[stateno];
    if( i==YY_SHIFT_USE_DFLT ) return yy_default[stateno];
    assert( iLookAhead!=YYNOCODE );
    i += iLookAhead;
    if( i<0 || i>=YY_ACTTAB_COUNT || yy_lookahead[i]!=iLookAhead ){
      if( iLookAhead>0 ){
#ifdef YYFALLBACK
        YYCODETYPE iFallback;            /* Fallback token */
        if( iLookAhead<sizeof(yyFallback)/sizeof(yyFallback[0])
               && (iFallback = yyFallback[iLookAhead])!=0 ){
#ifndef NDEBUG
          if( yyTraceFILE ){
            fprintf(yyTraceFILE, "%sFALLBACK %s => %s\n",
               yyTracePrompt, yyTokenName[iLookAhead], yyTokenName[iFallback]);
          }
#endif
          assert( yyFallback[iFallback]==0 ); /* Fallback loop must terminate */
          iLookAhead = iFallback;
          continue;
        }
#endif
#ifdef YYWILDCARD
        {
          int j = i - iLookAhead + YYWILDCARD;
          if( 
#if YY_SHIFT_MIN+YYWILDCARD<0
            j>=0 &&
#endif
#if YY_SHIFT_MAX+YYWILDCARD>=YY_ACTTAB_COUNT
            j<YY_ACTTAB_COUNT &&
#endif
            yy_lookahead[j]==YYWILDCARD
          ){
#ifndef NDEBUG
            if( yyTraceFILE ){
              fprintf(yyTraceFILE, "%sWILDCARD %s => %s\n",
                 yyTracePrompt, yyTokenName[iLookAhead],
                 yyTokenName[YYWILDCARD]);
            }
#endif /* NDEBUG */
            return yy_action[j];
          }
        }
#endif /* YYWILDCARD */
      }
      return yy_default[stateno];
    }else{
      return yy_action[i];
    }
  }while(1);
}

................................................................................
  { 205, 4 },
  { 205, 4 },
  { 149, 6 },
  { 201, 0 },
  { 201, 2 },
  { 149, 8 },
  { 218, 5 },

  { 218, 3 },

  { 149, 6 },
  { 149, 7 },
  { 219, 2 },
  { 219, 1 },
  { 220, 0 },
  { 220, 3 },
  { 217, 3 },
................................................................................
  { 172, 1 },
  { 173, 1 },
  { 173, 1 },
  { 173, 3 },
  { 173, 5 },
  { 172, 1 },
  { 172, 1 },

  { 173, 1 },
  { 173, 3 },
  { 173, 6 },
  { 173, 5 },
  { 173, 4 },
  { 172, 1 },

  { 173, 3 },
  { 173, 3 },
  { 173, 3 },
  { 173, 3 },
  { 173, 3 },
  { 173, 3 },
  { 173, 3 },
................................................................................
      case 19: /* temp ::= */ yytestcase(yyruleno==19);
      case 22: /* table_options ::= */ yytestcase(yyruleno==22);
      case 42: /* autoinc ::= */ yytestcase(yyruleno==42);
      case 57: /* init_deferred_pred_opt ::= */ yytestcase(yyruleno==57);
      case 67: /* defer_subclause_opt ::= */ yytestcase(yyruleno==67);
      case 76: /* ifexists ::= */ yytestcase(yyruleno==76);
      case 90: /* distinct ::= */ yytestcase(yyruleno==90);
      case 211: /* collate ::= */ yytestcase(yyruleno==211);
{yymsp[1].minor.yy194 = 0;}
        break;
      case 17: /* ifnotexists ::= IF NOT EXISTS */
{yymsp[-2].minor.yy194 = 1;}
        break;
      case 18: /* temp ::= TEMP */
      case 43: /* autoinc ::= AUTOINCR */ yytestcase(yyruleno==43);
................................................................................
{ yymsp[-1].minor.yy194 = OE_None;     /* EV: R-33326-45252 */}
        break;
      case 55: /* defer_subclause ::= NOT DEFERRABLE init_deferred_pred_opt */
{yymsp[-2].minor.yy194 = 0;}
        break;
      case 56: /* defer_subclause ::= DEFERRABLE init_deferred_pred_opt */
      case 71: /* orconf ::= OR resolvetype */ yytestcase(yyruleno==71);
      case 142: /* insert_cmd ::= INSERT orconf */ yytestcase(yyruleno==142);
{yymsp[-1].minor.yy194 = yymsp[0].minor.yy194;}
        break;
      case 58: /* init_deferred_pred_opt ::= INITIALLY DEFERRED */
      case 75: /* ifexists ::= IF EXISTS */ yytestcase(yyruleno==75);
      case 183: /* between_op ::= NOT BETWEEN */ yytestcase(yyruleno==183);
      case 186: /* in_op ::= NOT IN */ yytestcase(yyruleno==186);
      case 212: /* collate ::= COLLATE ID|STRING */ yytestcase(yyruleno==212);
{yymsp[-1].minor.yy194 = 1;}
        break;
      case 59: /* init_deferred_pred_opt ::= INITIALLY IMMEDIATE */
{yymsp[-1].minor.yy194 = 0;}
        break;
      case 61: /* tconscomma ::= COMMA */
{pParse->constraintName.n = 0;}
................................................................................
      case 69: /* onconf ::= ON CONFLICT resolvetype */
{yymsp[-2].minor.yy194 = yymsp[0].minor.yy194;}
        break;
      case 72: /* resolvetype ::= IGNORE */
{yymsp[0].minor.yy194 = OE_Ignore;}
        break;
      case 73: /* resolvetype ::= REPLACE */
      case 143: /* insert_cmd ::= REPLACE */ yytestcase(yyruleno==143);
{yymsp[0].minor.yy194 = OE_Replace;}
        break;
      case 74: /* cmd ::= DROP TABLE ifexists fullname */
{
  sqlite3DropTable(pParse, yymsp[0].minor.yy185, 0, yymsp[-1].minor.yy194);
}
        break;
................................................................................
        break;
      case 89: /* distinct ::= ALL */
{yymsp[0].minor.yy194 = SF_All;}
        break;
      case 91: /* sclp ::= */
      case 119: /* orderby_opt ::= */ yytestcase(yyruleno==119);
      case 126: /* groupby_opt ::= */ yytestcase(yyruleno==126);
      case 199: /* exprlist ::= */ yytestcase(yyruleno==199);
      case 202: /* paren_exprlist ::= */ yytestcase(yyruleno==202);
      case 207: /* eidlist_opt ::= */ yytestcase(yyruleno==207);
{yymsp[1].minor.yy148 = 0;}
        break;
      case 92: /* selcollist ::= sclp expr as */
{
   yymsp[-2].minor.yy148 = sqlite3ExprListAppend(pParse, yymsp[-2].minor.yy148, yymsp[-1].minor.yy190.pExpr);
   if( yymsp[0].minor.yy0.n>0 ) sqlite3ExprListSetName(pParse, yymsp[-2].minor.yy148, &yymsp[0].minor.yy0, 1);
   sqlite3ExprListSetSpan(pParse,yymsp[-2].minor.yy148,&yymsp[-1].minor.yy190);
................................................................................
{
  Expr *p = sqlite3Expr(pParse->db, TK_ASTERISK, 0);
  yymsp[-1].minor.yy148 = sqlite3ExprListAppend(pParse, yymsp[-1].minor.yy148, p);
}
        break;
      case 94: /* selcollist ::= sclp nm DOT STAR */
{
  Expr *pRight = sqlite3PExpr(pParse, TK_ASTERISK, 0, 0, &yymsp[0].minor.yy0);
  Expr *pLeft = sqlite3PExpr(pParse, TK_ID, 0, 0, &yymsp[-2].minor.yy0);
  Expr *pDot = sqlite3PExpr(pParse, TK_DOT, pLeft, pRight, 0);
  yymsp[-3].minor.yy148 = sqlite3ExprListAppend(pParse,yymsp[-3].minor.yy148, pDot);
}
        break;
      case 95: /* as ::= AS nm */
      case 106: /* dbnm ::= DOT nm */ yytestcase(yyruleno==106);
      case 221: /* plus_num ::= PLUS INTEGER|FLOAT */ yytestcase(yyruleno==221);
      case 222: /* minus_num ::= MINUS INTEGER|FLOAT */ yytestcase(yyruleno==222);
{yymsp[-1].minor.yy0 = yymsp[0].minor.yy0;}
        break;
      case 97: /* from ::= */
{yymsp[1].minor.yy185 = sqlite3DbMallocZero(pParse->db, sizeof(*yymsp[1].minor.yy185));}
        break;
      case 98: /* from ::= FROM seltablist */
{
................................................................................
        break;
      case 111: /* joinop ::= JOIN_KW nm nm JOIN */
{yymsp[-3].minor.yy194 = sqlite3JoinType(pParse,&yymsp[-3].minor.yy0,&yymsp[-2].minor.yy0,&yymsp[-1].minor.yy0);/*X-overwrites-A*/}
        break;
      case 112: /* on_opt ::= ON expr */
      case 129: /* having_opt ::= HAVING expr */ yytestcase(yyruleno==129);
      case 136: /* where_opt ::= WHERE expr */ yytestcase(yyruleno==136);
      case 195: /* case_else ::= ELSE expr */ yytestcase(yyruleno==195);
{yymsp[-1].minor.yy72 = yymsp[0].minor.yy190.pExpr;}
        break;
      case 113: /* on_opt ::= */
      case 128: /* having_opt ::= */ yytestcase(yyruleno==128);
      case 135: /* where_opt ::= */ yytestcase(yyruleno==135);
      case 196: /* case_else ::= */ yytestcase(yyruleno==196);
      case 198: /* case_operand ::= */ yytestcase(yyruleno==198);
{yymsp[1].minor.yy72 = 0;}
        break;
      case 115: /* indexed_opt ::= INDEXED BY nm */
{yymsp[-2].minor.yy0 = yymsp[0].minor.yy0;}
        break;
      case 116: /* indexed_opt ::= NOT INDEXED */
{yymsp[-1].minor.yy0.z=0; yymsp[-1].minor.yy0.n=1;}
        break;
      case 117: /* using_opt ::= USING LP idlist RP */
{yymsp[-3].minor.yy254 = yymsp[-1].minor.yy254;}
        break;
      case 118: /* using_opt ::= */
      case 144: /* idlist_opt ::= */ yytestcase(yyruleno==144);
{yymsp[1].minor.yy254 = 0;}
        break;
      case 120: /* orderby_opt ::= ORDER BY sortlist */
      case 127: /* groupby_opt ::= GROUP BY nexprlist */ yytestcase(yyruleno==127);
{yymsp[-2].minor.yy148 = yymsp[0].minor.yy148;}
        break;
      case 121: /* sortlist ::= sortlist COMMA expr sortorder */
................................................................................
        break;
      case 138: /* setlist ::= setlist COMMA nm EQ expr */
{
  yymsp[-4].minor.yy148 = sqlite3ExprListAppend(pParse, yymsp[-4].minor.yy148, yymsp[0].minor.yy190.pExpr);
  sqlite3ExprListSetName(pParse, yymsp[-4].minor.yy148, &yymsp[-2].minor.yy0, 1);
}
        break;





      case 139: /* setlist ::= nm EQ expr */
{
  yylhsminor.yy148 = sqlite3ExprListAppend(pParse, 0, yymsp[0].minor.yy190.pExpr);
  sqlite3ExprListSetName(pParse, yylhsminor.yy148, &yymsp[-2].minor.yy0, 1);
}
  yymsp[-2].minor.yy148 = yylhsminor.yy148;
        break;





      case 140: /* cmd ::= with insert_cmd INTO fullname idlist_opt select */
{
  sqlite3WithPush(pParse, yymsp[-5].minor.yy285, 1);
  sqlite3Insert(pParse, yymsp[-2].minor.yy185, yymsp[0].minor.yy243, yymsp[-1].minor.yy254, yymsp[-4].minor.yy194);
}
        break;
      case 141: /* cmd ::= with insert_cmd INTO fullname idlist_opt DEFAULT VALUES */
{
  sqlite3WithPush(pParse, yymsp[-6].minor.yy285, 1);
  sqlite3Insert(pParse, yymsp[-3].minor.yy185, 0, yymsp[-2].minor.yy254, yymsp[-5].minor.yy194);
}
        break;
      case 145: /* idlist_opt ::= LP idlist RP */
{yymsp[-2].minor.yy254 = yymsp[-1].minor.yy254;}
        break;
      case 146: /* idlist ::= idlist COMMA nm */
{yymsp[-2].minor.yy254 = sqlite3IdListAppend(pParse->db,yymsp[-2].minor.yy254,&yymsp[0].minor.yy0);}
        break;
      case 147: /* idlist ::= nm */
{yymsp[0].minor.yy254 = sqlite3IdListAppend(pParse->db,0,&yymsp[0].minor.yy0); /*A-overwrites-Y*/}
        break;
      case 148: /* expr ::= LP expr RP */
{spanSet(&yymsp[-2].minor.yy190,&yymsp[-2].minor.yy0,&yymsp[0].minor.yy0); /*A-overwrites-B*/  yymsp[-2].minor.yy190.pExpr = yymsp[-1].minor.yy190.pExpr;}
        break;
      case 149: /* term ::= NULL */
      case 154: /* term ::= INTEGER|FLOAT|BLOB */ yytestcase(yyruleno==154);
      case 155: /* term ::= STRING */ yytestcase(yyruleno==155);
{spanExpr(&yymsp[0].minor.yy190,pParse,yymsp[0].major,yymsp[0].minor.yy0);/*A-overwrites-X*/}
        break;
      case 150: /* expr ::= ID|INDEXED */
      case 151: /* expr ::= JOIN_KW */ yytestcase(yyruleno==151);
{spanExpr(&yymsp[0].minor.yy190,pParse,TK_ID,yymsp[0].minor.yy0); /*A-overwrites-X*/}
        break;
      case 152: /* expr ::= nm DOT nm */
{
  Expr *temp1 = sqlite3PExpr(pParse, TK_ID, 0, 0, &yymsp[-2].minor.yy0);
  Expr *temp2 = sqlite3PExpr(pParse, TK_ID, 0, 0, &yymsp[0].minor.yy0);
  spanSet(&yymsp[-2].minor.yy190,&yymsp[-2].minor.yy0,&yymsp[0].minor.yy0); /*A-overwrites-X*/
  yymsp[-2].minor.yy190.pExpr = sqlite3PExpr(pParse, TK_DOT, temp1, temp2, 0);
}
        break;
      case 153: /* expr ::= nm DOT nm DOT nm */
{
  Expr *temp1 = sqlite3PExpr(pParse, TK_ID, 0, 0, &yymsp[-4].minor.yy0);
  Expr *temp2 = sqlite3PExpr(pParse, TK_ID, 0, 0, &yymsp[-2].minor.yy0);
  Expr *temp3 = sqlite3PExpr(pParse, TK_ID, 0, 0, &yymsp[0].minor.yy0);
  Expr *temp4 = sqlite3PExpr(pParse, TK_DOT, temp2, temp3, 0);
  spanSet(&yymsp[-4].minor.yy190,&yymsp[-4].minor.yy0,&yymsp[0].minor.yy0); /*A-overwrites-X*/
  yymsp[-4].minor.yy190.pExpr = sqlite3PExpr(pParse, TK_DOT, temp1, temp4, 0);
}
        break;









      case 156: /* expr ::= VARIABLE */
{
  if( !(yymsp[0].minor.yy0.z[0]=='#' && sqlite3Isdigit(yymsp[0].minor.yy0.z[1])) ){

    spanExpr(&yymsp[0].minor.yy190, pParse, TK_VARIABLE, yymsp[0].minor.yy0);
    sqlite3ExprAssignVarNumber(pParse, yymsp[0].minor.yy190.pExpr);
  }else{
    /* When doing a nested parse, one can include terms in an expression
    ** that look like this:   #1 #2 ...  These terms refer to registers
    ** in the virtual machine.  #N is the N-th register. */
    Token t = yymsp[0].minor.yy0; /*A-overwrites-X*/
    assert( t.n>=2 );
    spanSet(&yymsp[0].minor.yy190, &t, &t);
    if( pParse->nested==0 ){
      sqlite3ErrorMsg(pParse, "near \"%T\": syntax error", &t);
      yymsp[0].minor.yy190.pExpr = 0;
    }else{
      yymsp[0].minor.yy190.pExpr = sqlite3PExpr(pParse, TK_REGISTER, 0, 0, &t);
      if( yymsp[0].minor.yy190.pExpr ) sqlite3GetInt32(&t.z[1], &yymsp[0].minor.yy190.pExpr->iTable);
    }
  }
}
        break;
      case 157: /* expr ::= expr COLLATE ID|STRING */
{
  yymsp[-2].minor.yy190.pExpr = sqlite3ExprAddCollateToken(pParse, yymsp[-2].minor.yy190.pExpr, &yymsp[0].minor.yy0, 1);
  yymsp[-2].minor.yy190.zEnd = &yymsp[0].minor.yy0.z[yymsp[0].minor.yy0.n];
}
        break;
      case 158: /* expr ::= CAST LP expr AS typetoken RP */
{
  spanSet(&yymsp[-5].minor.yy190,&yymsp[-5].minor.yy0,&yymsp[0].minor.yy0); /*A-overwrites-X*/
  yymsp[-5].minor.yy190.pExpr = sqlite3PExpr(pParse, TK_CAST, yymsp[-3].minor.yy190.pExpr, 0, &yymsp[-1].minor.yy0);
}
        break;
      case 159: /* expr ::= ID|INDEXED LP distinct exprlist RP */
{
  if( yymsp[-1].minor.yy148 && yymsp[-1].minor.yy148->nExpr>pParse->db->aLimit[SQLITE_LIMIT_FUNCTION_ARG] ){
    sqlite3ErrorMsg(pParse, "too many arguments on function %T", &yymsp[-4].minor.yy0);
  }
  yylhsminor.yy190.pExpr = sqlite3ExprFunction(pParse, yymsp[-1].minor.yy148, &yymsp[-4].minor.yy0);
  spanSet(&yylhsminor.yy190,&yymsp[-4].minor.yy0,&yymsp[0].minor.yy0);
  if( yymsp[-2].minor.yy194==SF_Distinct && yylhsminor.yy190.pExpr ){
    yylhsminor.yy190.pExpr->flags |= EP_Distinct;
  }
}
  yymsp[-4].minor.yy190 = yylhsminor.yy190;
        break;
      case 160: /* expr ::= ID|INDEXED LP STAR RP */
{
  yylhsminor.yy190.pExpr = sqlite3ExprFunction(pParse, 0, &yymsp[-3].minor.yy0);
  spanSet(&yylhsminor.yy190,&yymsp[-3].minor.yy0,&yymsp[0].minor.yy0);
}
  yymsp[-3].minor.yy190 = yylhsminor.yy190;
        break;
      case 161: /* term ::= CTIME_KW */
{
  yylhsminor.yy190.pExpr = sqlite3ExprFunction(pParse, 0, &yymsp[0].minor.yy0);
  spanSet(&yylhsminor.yy190, &yymsp[0].minor.yy0, &yymsp[0].minor.yy0);
}
  yymsp[0].minor.yy190 = yylhsminor.yy190;
        break;













      case 162: /* expr ::= expr AND expr */
      case 163: /* expr ::= expr OR expr */ yytestcase(yyruleno==163);
      case 164: /* expr ::= expr LT|GT|GE|LE expr */ yytestcase(yyruleno==164);
      case 165: /* expr ::= expr EQ|NE expr */ yytestcase(yyruleno==165);
      case 166: /* expr ::= expr BITAND|BITOR|LSHIFT|RSHIFT expr */ yytestcase(yyruleno==166);
      case 167: /* expr ::= expr PLUS|MINUS expr */ yytestcase(yyruleno==167);
      case 168: /* expr ::= expr STAR|SLASH|REM expr */ yytestcase(yyruleno==168);
      case 169: /* expr ::= expr CONCAT expr */ yytestcase(yyruleno==169);
{spanBinaryExpr(pParse,yymsp[-1].major,&yymsp[-2].minor.yy190,&yymsp[0].minor.yy190);}
        break;
      case 170: /* likeop ::= LIKE_KW|MATCH */
{yymsp[0].minor.yy392.eOperator = yymsp[0].minor.yy0; yymsp[0].minor.yy392.bNot = 0;/*A-overwrites-X*/}

        break;
      case 171: /* likeop ::= NOT LIKE_KW|MATCH */
{yymsp[-1].minor.yy392.eOperator = yymsp[0].minor.yy0; yymsp[-1].minor.yy392.bNot = 1;}

        break;
      case 172: /* expr ::= expr likeop expr */
{
  ExprList *pList;


  pList = sqlite3ExprListAppend(pParse,0, yymsp[0].minor.yy190.pExpr);
  pList = sqlite3ExprListAppend(pParse,pList, yymsp[-2].minor.yy190.pExpr);
  yymsp[-2].minor.yy190.pExpr = sqlite3ExprFunction(pParse, pList, &yymsp[-1].minor.yy392.eOperator);
  exprNot(pParse, yymsp[-1].minor.yy392.bNot, &yymsp[-2].minor.yy190);
  yymsp[-2].minor.yy190.zEnd = yymsp[0].minor.yy190.zEnd;
  if( yymsp[-2].minor.yy190.pExpr ) yymsp[-2].minor.yy190.pExpr->flags |= EP_InfixFunc;
}
        break;
      case 173: /* expr ::= expr likeop expr ESCAPE expr */
{
  ExprList *pList;


  pList = sqlite3ExprListAppend(pParse,0, yymsp[-2].minor.yy190.pExpr);
  pList = sqlite3ExprListAppend(pParse,pList, yymsp[-4].minor.yy190.pExpr);
  pList = sqlite3ExprListAppend(pParse,pList, yymsp[0].minor.yy190.pExpr);
  yymsp[-4].minor.yy190.pExpr = sqlite3ExprFunction(pParse, pList, &yymsp[-3].minor.yy392.eOperator);
  exprNot(pParse, yymsp[-3].minor.yy392.bNot, &yymsp[-4].minor.yy190);
  yymsp[-4].minor.yy190.zEnd = yymsp[0].minor.yy190.zEnd;
  if( yymsp[-4].minor.yy190.pExpr ) yymsp[-4].minor.yy190.pExpr->flags |= EP_InfixFunc;
}
        break;
      case 174: /* expr ::= expr ISNULL|NOTNULL */
{spanUnaryPostfix(pParse,yymsp[0].major,&yymsp[-1].minor.yy190,&yymsp[0].minor.yy0);}
        break;
      case 175: /* expr ::= expr NOT NULL */
{spanUnaryPostfix(pParse,TK_NOTNULL,&yymsp[-2].minor.yy190,&yymsp[0].minor.yy0);}
        break;
      case 176: /* expr ::= expr IS expr */
{
  spanBinaryExpr(pParse,TK_IS,&yymsp[-2].minor.yy190,&yymsp[0].minor.yy190);
  binaryToUnaryIfNull(pParse, yymsp[0].minor.yy190.pExpr, yymsp[-2].minor.yy190.pExpr, TK_ISNULL);
}
        break;
      case 177: /* expr ::= expr IS NOT expr */
{
  spanBinaryExpr(pParse,TK_ISNOT,&yymsp[-3].minor.yy190,&yymsp[0].minor.yy190);
  binaryToUnaryIfNull(pParse, yymsp[0].minor.yy190.pExpr, yymsp[-3].minor.yy190.pExpr, TK_NOTNULL);
}
        break;
      case 178: /* expr ::= NOT expr */
      case 179: /* expr ::= BITNOT expr */ yytestcase(yyruleno==179);
{spanUnaryPrefix(&yymsp[-1].minor.yy190,pParse,yymsp[-1].major,&yymsp[0].minor.yy190,&yymsp[-1].minor.yy0);/*A-overwrites-B*/}
        break;
      case 180: /* expr ::= MINUS expr */
{spanUnaryPrefix(&yymsp[-1].minor.yy190,pParse,TK_UMINUS,&yymsp[0].minor.yy190,&yymsp[-1].minor.yy0);/*A-overwrites-B*/}
        break;
      case 181: /* expr ::= PLUS expr */
{spanUnaryPrefix(&yymsp[-1].minor.yy190,pParse,TK_UPLUS,&yymsp[0].minor.yy190,&yymsp[-1].minor.yy0);/*A-overwrites-B*/}
        break;
      case 182: /* between_op ::= BETWEEN */
      case 185: /* in_op ::= IN */ yytestcase(yyruleno==185);
{yymsp[0].minor.yy194 = 0;}
        break;
      case 184: /* expr ::= expr between_op expr AND expr */
{
  ExprList *pList = sqlite3ExprListAppend(pParse,0, yymsp[-2].minor.yy190.pExpr);
  pList = sqlite3ExprListAppend(pParse,pList, yymsp[0].minor.yy190.pExpr);
  yymsp[-4].minor.yy190.pExpr = sqlite3PExpr(pParse, TK_BETWEEN, yymsp[-4].minor.yy190.pExpr, 0, 0);
  if( yymsp[-4].minor.yy190.pExpr ){
    yymsp[-4].minor.yy190.pExpr->x.pList = pList;
  }else{
    sqlite3ExprListDelete(pParse->db, pList);
  } 
  exprNot(pParse, yymsp[-3].minor.yy194, &yymsp[-4].minor.yy190);
  yymsp[-4].minor.yy190.zEnd = yymsp[0].minor.yy190.zEnd;
}
        break;
      case 187: /* expr ::= expr in_op LP exprlist RP */
{
    if( yymsp[-1].minor.yy148==0 ){
      /* Expressions of the form
      **
      **      expr1 IN ()
      **      expr1 NOT IN ()
      **
................................................................................
        sqlite3ExprListDelete(pParse->db, yymsp[-1].minor.yy148);
      }
      exprNot(pParse, yymsp[-3].minor.yy194, &yymsp[-4].minor.yy190);
    }
    yymsp[-4].minor.yy190.zEnd = &yymsp[0].minor.yy0.z[yymsp[0].minor.yy0.n];
  }
        break;
      case 188: /* expr ::= LP select RP */
{
    spanSet(&yymsp[-2].minor.yy190,&yymsp[-2].minor.yy0,&yymsp[0].minor.yy0); /*A-overwrites-B*/
    yymsp[-2].minor.yy190.pExpr = sqlite3PExpr(pParse, TK_SELECT, 0, 0, 0);
    sqlite3PExprAddSelect(pParse, yymsp[-2].minor.yy190.pExpr, yymsp[-1].minor.yy243);
  }
        break;
      case 189: /* expr ::= expr in_op LP select RP */
{
    yymsp[-4].minor.yy190.pExpr = sqlite3PExpr(pParse, TK_IN, yymsp[-4].minor.yy190.pExpr, 0, 0);
    sqlite3PExprAddSelect(pParse, yymsp[-4].minor.yy190.pExpr, yymsp[-1].minor.yy243);
    exprNot(pParse, yymsp[-3].minor.yy194, &yymsp[-4].minor.yy190);
    yymsp[-4].minor.yy190.zEnd = &yymsp[0].minor.yy0.z[yymsp[0].minor.yy0.n];
  }
        break;
      case 190: /* expr ::= expr in_op nm dbnm paren_exprlist */
{
    SrcList *pSrc = sqlite3SrcListAppend(pParse->db, 0,&yymsp[-2].minor.yy0,&yymsp[-1].minor.yy0);
    Select *pSelect = sqlite3SelectNew(pParse, 0,pSrc,0,0,0,0,0,0,0);
    if( yymsp[0].minor.yy148 )  sqlite3SrcListFuncArgs(pParse, pSelect ? pSrc : 0, yymsp[0].minor.yy148);
    yymsp[-4].minor.yy190.pExpr = sqlite3PExpr(pParse, TK_IN, yymsp[-4].minor.yy190.pExpr, 0, 0);
    sqlite3PExprAddSelect(pParse, yymsp[-4].minor.yy190.pExpr, pSelect);
    exprNot(pParse, yymsp[-3].minor.yy194, &yymsp[-4].minor.yy190);
    yymsp[-4].minor.yy190.zEnd = yymsp[-1].minor.yy0.z ? &yymsp[-1].minor.yy0.z[yymsp[-1].minor.yy0.n] : &yymsp[-2].minor.yy0.z[yymsp[-2].minor.yy0.n];
  }
        break;
      case 191: /* expr ::= EXISTS LP select RP */
{
    Expr *p;
    spanSet(&yymsp[-3].minor.yy190,&yymsp[-3].minor.yy0,&yymsp[0].minor.yy0); /*A-overwrites-B*/
    p = yymsp[-3].minor.yy190.pExpr = sqlite3PExpr(pParse, TK_EXISTS, 0, 0, 0);
    sqlite3PExprAddSelect(pParse, p, yymsp[-1].minor.yy243);
  }
        break;
      case 192: /* expr ::= CASE case_operand case_exprlist case_else END */
{
  spanSet(&yymsp[-4].minor.yy190,&yymsp[-4].minor.yy0,&yymsp[0].minor.yy0);  /*A-overwrites-C*/
  yymsp[-4].minor.yy190.pExpr = sqlite3PExpr(pParse, TK_CASE, yymsp[-3].minor.yy72, 0, 0);
  if( yymsp[-4].minor.yy190.pExpr ){
    yymsp[-4].minor.yy190.pExpr->x.pList = yymsp[-1].minor.yy72 ? sqlite3ExprListAppend(pParse,yymsp[-2].minor.yy148,yymsp[-1].minor.yy72) : yymsp[-2].minor.yy148;
    sqlite3ExprSetHeightAndFlags(pParse, yymsp[-4].minor.yy190.pExpr);
  }else{
    sqlite3ExprListDelete(pParse->db, yymsp[-2].minor.yy148);
    sqlite3ExprDelete(pParse->db, yymsp[-1].minor.yy72);
  }
}
        break;
      case 193: /* case_exprlist ::= case_exprlist WHEN expr THEN expr */
{
  yymsp[-4].minor.yy148 = sqlite3ExprListAppend(pParse,yymsp[-4].minor.yy148, yymsp[-2].minor.yy190.pExpr);
  yymsp[-4].minor.yy148 = sqlite3ExprListAppend(pParse,yymsp[-4].minor.yy148, yymsp[0].minor.yy190.pExpr);
}
        break;
      case 194: /* case_exprlist ::= WHEN expr THEN expr */
{
  yymsp[-3].minor.yy148 = sqlite3ExprListAppend(pParse,0, yymsp[-2].minor.yy190.pExpr);
  yymsp[-3].minor.yy148 = sqlite3ExprListAppend(pParse,yymsp[-3].minor.yy148, yymsp[0].minor.yy190.pExpr);
}
        break;
      case 197: /* case_operand ::= expr */
{yymsp[0].minor.yy72 = yymsp[0].minor.yy190.pExpr; /*A-overwrites-X*/}
        break;
      case 200: /* nexprlist ::= nexprlist COMMA expr */
{yymsp[-2].minor.yy148 = sqlite3ExprListAppend(pParse,yymsp[-2].minor.yy148,yymsp[0].minor.yy190.pExpr);}
        break;
      case 201: /* nexprlist ::= expr */
{yymsp[0].minor.yy148 = sqlite3ExprListAppend(pParse,0,yymsp[0].minor.yy190.pExpr); /*A-overwrites-Y*/}
        break;
      case 203: /* paren_exprlist ::= LP exprlist RP */
      case 208: /* eidlist_opt ::= LP eidlist RP */ yytestcase(yyruleno==208);
{yymsp[-2].minor.yy148 = yymsp[-1].minor.yy148;}
        break;
      case 204: /* cmd ::= createkw uniqueflag INDEX ifnotexists nm dbnm ON nm LP sortlist RP where_opt */
{
  sqlite3CreateIndex(pParse, &yymsp[-7].minor.yy0, &yymsp[-6].minor.yy0, 
                     sqlite3SrcListAppend(pParse->db,0,&yymsp[-4].minor.yy0,0), yymsp[-2].minor.yy148, yymsp[-10].minor.yy194,
                      &yymsp[-11].minor.yy0, yymsp[0].minor.yy72, SQLITE_SO_ASC, yymsp[-8].minor.yy194, SQLITE_IDXTYPE_APPDEF);
}
        break;
      case 205: /* uniqueflag ::= UNIQUE */
      case 246: /* raisetype ::= ABORT */ yytestcase(yyruleno==246);
{yymsp[0].minor.yy194 = OE_Abort;}
        break;
      case 206: /* uniqueflag ::= */
{yymsp[1].minor.yy194 = OE_None;}
        break;
      case 209: /* eidlist ::= eidlist COMMA nm collate sortorder */
{
  yymsp[-4].minor.yy148 = parserAddExprIdListTerm(pParse, yymsp[-4].minor.yy148, &yymsp[-2].minor.yy0, yymsp[-1].minor.yy194, yymsp[0].minor.yy194);
}
        break;
      case 210: /* eidlist ::= nm collate sortorder */
{
  yymsp[-2].minor.yy148 = parserAddExprIdListTerm(pParse, 0, &yymsp[-2].minor.yy0, yymsp[-1].minor.yy194, yymsp[0].minor.yy194); /*A-overwrites-Y*/
}
        break;
      case 213: /* cmd ::= DROP INDEX ifexists fullname */
{sqlite3DropIndex(pParse, yymsp[0].minor.yy185, yymsp[-1].minor.yy194);}
        break;
      case 214: /* cmd ::= VACUUM */


      case 215: /* cmd ::= VACUUM nm */ yytestcase(yyruleno==215);
{sqlite3Vacuum(pParse);}
        break;
      case 216: /* cmd ::= PRAGMA nm dbnm */
{sqlite3Pragma(pParse,&yymsp[-1].minor.yy0,&yymsp[0].minor.yy0,0,0);}
        break;
      case 217: /* cmd ::= PRAGMA nm dbnm EQ nmnum */
{sqlite3Pragma(pParse,&yymsp[-3].minor.yy0,&yymsp[-2].minor.yy0,&yymsp[0].minor.yy0,0);}
        break;
      case 218: /* cmd ::= PRAGMA nm dbnm LP nmnum RP */
{sqlite3Pragma(pParse,&yymsp[-4].minor.yy0,&yymsp[-3].minor.yy0,&yymsp[-1].minor.yy0,0);}
        break;
      case 219: /* cmd ::= PRAGMA nm dbnm EQ minus_num */
{sqlite3Pragma(pParse,&yymsp[-3].minor.yy0,&yymsp[-2].minor.yy0,&yymsp[0].minor.yy0,1);}
        break;
      case 220: /* cmd ::= PRAGMA nm dbnm LP minus_num RP */
{sqlite3Pragma(pParse,&yymsp[-4].minor.yy0,&yymsp[-3].minor.yy0,&yymsp[-1].minor.yy0,1);}
        break;
      case 223: /* cmd ::= createkw trigger_decl BEGIN trigger_cmd_list END */
{
  Token all;
  all.z = yymsp[-3].minor.yy0.z;
  all.n = (int)(yymsp[0].minor.yy0.z - yymsp[-3].minor.yy0.z) + yymsp[0].minor.yy0.n;
  sqlite3FinishTrigger(pParse, yymsp[-1].minor.yy145, &all);
}
        break;
      case 224: /* trigger_decl ::= temp TRIGGER ifnotexists nm dbnm trigger_time trigger_event ON fullname foreach_clause when_clause */
{
  sqlite3BeginTrigger(pParse, &yymsp[-7].minor.yy0, &yymsp[-6].minor.yy0, yymsp[-5].minor.yy194, yymsp[-4].minor.yy332.a, yymsp[-4].minor.yy332.b, yymsp[-2].minor.yy185, yymsp[0].minor.yy72, yymsp[-10].minor.yy194, yymsp[-8].minor.yy194);
  yymsp[-10].minor.yy0 = (yymsp[-6].minor.yy0.n==0?yymsp[-7].minor.yy0:yymsp[-6].minor.yy0); /*A-overwrites-T*/
}
        break;
      case 225: /* trigger_time ::= BEFORE */
{ yymsp[0].minor.yy194 = TK_BEFORE; }
        break;
      case 226: /* trigger_time ::= AFTER */
{ yymsp[0].minor.yy194 = TK_AFTER;  }
        break;
      case 227: /* trigger_time ::= INSTEAD OF */
{ yymsp[-1].minor.yy194 = TK_INSTEAD;}
        break;
      case 228: /* trigger_time ::= */
{ yymsp[1].minor.yy194 = TK_BEFORE; }
        break;
      case 229: /* trigger_event ::= DELETE|INSERT */
      case 230: /* trigger_event ::= UPDATE */ yytestcase(yyruleno==230);
{yymsp[0].minor.yy332.a = yymsp[0].major; /*A-overwrites-X*/ yymsp[0].minor.yy332.b = 0;}
        break;
      case 231: /* trigger_event ::= UPDATE OF idlist */
{yymsp[-2].minor.yy332.a = TK_UPDATE; yymsp[-2].minor.yy332.b = yymsp[0].minor.yy254;}
        break;
      case 232: /* when_clause ::= */
      case 251: /* key_opt ::= */ yytestcase(yyruleno==251);
{ yymsp[1].minor.yy72 = 0; }
        break;
      case 233: /* when_clause ::= WHEN expr */
      case 252: /* key_opt ::= KEY expr */ yytestcase(yyruleno==252);
{ yymsp[-1].minor.yy72 = yymsp[0].minor.yy190.pExpr; }
        break;
      case 234: /* trigger_cmd_list ::= trigger_cmd_list trigger_cmd SEMI */
{
  assert( yymsp[-2].minor.yy145!=0 );
  yymsp[-2].minor.yy145->pLast->pNext = yymsp[-1].minor.yy145;
  yymsp[-2].minor.yy145->pLast = yymsp[-1].minor.yy145;
}
        break;
      case 235: /* trigger_cmd_list ::= trigger_cmd SEMI */
{ 
  assert( yymsp[-1].minor.yy145!=0 );
  yymsp[-1].minor.yy145->pLast = yymsp[-1].minor.yy145;
}
        break;
      case 236: /* trnm ::= nm DOT nm */
{
  yymsp[-2].minor.yy0 = yymsp[0].minor.yy0;
  sqlite3ErrorMsg(pParse, 
        "qualified table names are not allowed on INSERT, UPDATE, and DELETE "
        "statements within triggers");
}
        break;
      case 237: /* tridxby ::= INDEXED BY nm */
{
  sqlite3ErrorMsg(pParse,
        "the INDEXED BY clause is not allowed on UPDATE or DELETE statements "
        "within triggers");
}
        break;
      case 238: /* tridxby ::= NOT INDEXED */
{
  sqlite3ErrorMsg(pParse,
        "the NOT INDEXED clause is not allowed on UPDATE or DELETE statements "
        "within triggers");
}
        break;
      case 239: /* trigger_cmd ::= UPDATE orconf trnm tridxby SET setlist where_opt */
{yymsp[-6].minor.yy145 = sqlite3TriggerUpdateStep(pParse->db, &yymsp[-4].minor.yy0, yymsp[-1].minor.yy148, yymsp[0].minor.yy72, yymsp[-5].minor.yy194);}
        break;
      case 240: /* trigger_cmd ::= insert_cmd INTO trnm idlist_opt select */
{yymsp[-4].minor.yy145 = sqlite3TriggerInsertStep(pParse->db, &yymsp[-2].minor.yy0, yymsp[-1].minor.yy254, yymsp[0].minor.yy243, yymsp[-4].minor.yy194);/*A-overwrites-R*/}
        break;
      case 241: /* trigger_cmd ::= DELETE FROM trnm tridxby where_opt */
{yymsp[-4].minor.yy145 = sqlite3TriggerDeleteStep(pParse->db, &yymsp[-2].minor.yy0, yymsp[0].minor.yy72);}
        break;
      case 242: /* trigger_cmd ::= select */
{yymsp[0].minor.yy145 = sqlite3TriggerSelectStep(pParse->db, yymsp[0].minor.yy243); /*A-overwrites-X*/}
        break;
      case 243: /* expr ::= RAISE LP IGNORE RP */
{
  spanSet(&yymsp[-3].minor.yy190,&yymsp[-3].minor.yy0,&yymsp[0].minor.yy0);  /*A-overwrites-X*/
  yymsp[-3].minor.yy190.pExpr = sqlite3PExpr(pParse, TK_RAISE, 0, 0, 0); 
  if( yymsp[-3].minor.yy190.pExpr ){
    yymsp[-3].minor.yy190.pExpr->affinity = OE_Ignore;
  }
}
        break;
      case 244: /* expr ::= RAISE LP raisetype COMMA nm RP */
{
  spanSet(&yymsp[-5].minor.yy190,&yymsp[-5].minor.yy0,&yymsp[0].minor.yy0);  /*A-overwrites-X*/
  yymsp[-5].minor.yy190.pExpr = sqlite3PExpr(pParse, TK_RAISE, 0, 0, &yymsp[-1].minor.yy0); 
  if( yymsp[-5].minor.yy190.pExpr ) {
    yymsp[-5].minor.yy190.pExpr->affinity = (char)yymsp[-3].minor.yy194;
  }
}
        break;
      case 245: /* raisetype ::= ROLLBACK */
{yymsp[0].minor.yy194 = OE_Rollback;}
        break;
      case 247: /* raisetype ::= FAIL */
{yymsp[0].minor.yy194 = OE_Fail;}
        break;
      case 248: /* cmd ::= DROP TRIGGER ifexists fullname */
{
  sqlite3DropTrigger(pParse,yymsp[0].minor.yy185,yymsp[-1].minor.yy194);
}
        break;
      case 249: /* cmd ::= ATTACH database_kw_opt expr AS expr key_opt */
{
  sqlite3Attach(pParse, yymsp[-3].minor.yy190.pExpr, yymsp[-1].minor.yy190.pExpr, yymsp[0].minor.yy72);
}
        break;
      case 250: /* cmd ::= DETACH database_kw_opt expr */
{
  sqlite3Detach(pParse, yymsp[0].minor.yy190.pExpr);
}
        break;
      case 253: /* cmd ::= REINDEX */
{sqlite3Reindex(pParse, 0, 0);}
        break;
      case 254: /* cmd ::= REINDEX nm dbnm */
{sqlite3Reindex(pParse, &yymsp[-1].minor.yy0, &yymsp[0].minor.yy0);}
        break;
      case 255: /* cmd ::= ANALYZE */
{sqlite3Analyze(pParse, 0, 0);}
        break;
      case 256: /* cmd ::= ANALYZE nm dbnm */
{sqlite3Analyze(pParse, &yymsp[-1].minor.yy0, &yymsp[0].minor.yy0);}
        break;
      case 257: /* cmd ::= ALTER TABLE fullname RENAME TO nm */
{
  sqlite3AlterRenameTable(pParse,yymsp[-3].minor.yy185,&yymsp[0].minor.yy0);
}
        break;
      case 258: /* cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt columnname carglist */
{
  yymsp[-1].minor.yy0.n = (int)(pParse->sLastToken.z-yymsp[-1].minor.yy0.z) + pParse->sLastToken.n;
  sqlite3AlterFinishAddColumn(pParse, &yymsp[-1].minor.yy0);
}
        break;
      case 259: /* add_column_fullname ::= fullname */
{
  disableLookaside(pParse);
  sqlite3AlterBeginAddColumn(pParse, yymsp[0].minor.yy185);
}
        break;
      case 260: /* cmd ::= create_vtab */
{sqlite3VtabFinishParse(pParse,0);}
        break;
      case 261: /* cmd ::= create_vtab LP vtabarglist RP */
{sqlite3VtabFinishParse(pParse,&yymsp[0].minor.yy0);}
        break;
      case 262: /* create_vtab ::= createkw VIRTUAL TABLE ifnotexists nm dbnm USING nm */
{
    sqlite3VtabBeginParse(pParse, &yymsp[-3].minor.yy0, &yymsp[-2].minor.yy0, &yymsp[0].minor.yy0, yymsp[-4].minor.yy194);
}
        break;
      case 263: /* vtabarg ::= */
{sqlite3VtabArgInit(pParse);}
        break;
      case 264: /* vtabargtoken ::= ANY */
      case 265: /* vtabargtoken ::= lp anylist RP */ yytestcase(yyruleno==265);
      case 266: /* lp ::= LP */ yytestcase(yyruleno==266);
{sqlite3VtabArgExtend(pParse,&yymsp[0].minor.yy0);}
        break;
      case 267: /* with ::= */
{yymsp[1].minor.yy285 = 0;}
        break;
      case 268: /* with ::= WITH wqlist */
{ yymsp[-1].minor.yy285 = yymsp[0].minor.yy285; }
        break;
      case 269: /* with ::= WITH RECURSIVE wqlist */
{ yymsp[-2].minor.yy285 = yymsp[0].minor.yy285; }
        break;
      case 270: /* wqlist ::= nm eidlist_opt AS LP select RP */
{
  yymsp[-5].minor.yy285 = sqlite3WithAdd(pParse, 0, &yymsp[-5].minor.yy0, yymsp[-4].minor.yy148, yymsp[-1].minor.yy243); /*A-overwrites-X*/
}
        break;
      case 271: /* wqlist ::= wqlist COMMA nm eidlist_opt AS LP select RP */
{
  yymsp[-7].minor.yy285 = sqlite3WithAdd(pParse, yymsp[-7].minor.yy285, &yymsp[-5].minor.yy0, yymsp[-4].minor.yy148, yymsp[-1].minor.yy243);
}
        break;
      default:
      /* (272) input ::= cmdlist */ yytestcase(yyruleno==272);
      /* (273) cmdlist ::= cmdlist ecmd */ yytestcase(yyruleno==273);
      /* (274) cmdlist ::= ecmd (OPTIMIZED OUT) */ assert(yyruleno!=274);
      /* (275) ecmd ::= SEMI */ yytestcase(yyruleno==275);
      /* (276) ecmd ::= explain cmdx SEMI */ yytestcase(yyruleno==276);
      /* (277) explain ::= */ yytestcase(yyruleno==277);
      /* (278) trans_opt ::= */ yytestcase(yyruleno==278);
      /* (279) trans_opt ::= TRANSACTION */ yytestcase(yyruleno==279);
      /* (280) trans_opt ::= TRANSACTION nm */ yytestcase(yyruleno==280);
      /* (281) savepoint_opt ::= SAVEPOINT */ yytestcase(yyruleno==281);
      /* (282) savepoint_opt ::= */ yytestcase(yyruleno==282);
      /* (283) cmd ::= create_table create_table_args */ yytestcase(yyruleno==283);
      /* (284) columnlist ::= columnlist COMMA columnname carglist */ yytestcase(yyruleno==284);
      /* (285) columnlist ::= columnname carglist */ yytestcase(yyruleno==285);
      /* (286) nm ::= ID|INDEXED */ yytestcase(yyruleno==286);
      /* (287) nm ::= STRING */ yytestcase(yyruleno==287);
      /* (288) nm ::= JOIN_KW */ yytestcase(yyruleno==288);
      /* (289) typetoken ::= typename */ yytestcase(yyruleno==289);
      /* (290) typename ::= ID|STRING */ yytestcase(yyruleno==290);
      /* (291) signed ::= plus_num (OPTIMIZED OUT) */ assert(yyruleno!=291);
      /* (292) signed ::= minus_num (OPTIMIZED OUT) */ assert(yyruleno!=292);
      /* (293) carglist ::= carglist ccons */ yytestcase(yyruleno==293);
      /* (294) carglist ::= */ yytestcase(yyruleno==294);
      /* (295) ccons ::= NULL onconf */ yytestcase(yyruleno==295);
      /* (296) conslist_opt ::= COMMA conslist */ yytestcase(yyruleno==296);
      /* (297) conslist ::= conslist tconscomma tcons */ yytestcase(yyruleno==297);
      /* (298) conslist ::= tcons (OPTIMIZED OUT) */ assert(yyruleno!=298);
      /* (299) tconscomma ::= */ yytestcase(yyruleno==299);
      /* (300) defer_subclause_opt ::= defer_subclause (OPTIMIZED OUT) */ assert(yyruleno!=300);
      /* (301) resolvetype ::= raisetype (OPTIMIZED OUT) */ assert(yyruleno!=301);
      /* (302) selectnowith ::= oneselect (OPTIMIZED OUT) */ assert(yyruleno!=302);
      /* (303) oneselect ::= values */ yytestcase(yyruleno==303);
      /* (304) sclp ::= selcollist COMMA */ yytestcase(yyruleno==304);
      /* (305) as ::= ID|STRING */ yytestcase(yyruleno==305);
      /* (306) expr ::= term (OPTIMIZED OUT) */ assert(yyruleno!=306);
      /* (307) exprlist ::= nexprlist */ yytestcase(yyruleno==307);
      /* (308) nmnum ::= plus_num (OPTIMIZED OUT) */ assert(yyruleno!=308);
      /* (309) nmnum ::= nm (OPTIMIZED OUT) */ assert(yyruleno!=309);
      /* (310) nmnum ::= ON */ yytestcase(yyruleno==310);
      /* (311) nmnum ::= DELETE */ yytestcase(yyruleno==311);
      /* (312) nmnum ::= DEFAULT */ yytestcase(yyruleno==312);
      /* (313) plus_num ::= INTEGER|FLOAT */ yytestcase(yyruleno==313);
      /* (314) foreach_clause ::= */ yytestcase(yyruleno==314);
      /* (315) foreach_clause ::= FOR EACH ROW */ yytestcase(yyruleno==315);
      /* (316) trnm ::= nm */ yytestcase(yyruleno==316);
      /* (317) tridxby ::= */ yytestcase(yyruleno==317);
      /* (318) database_kw_opt ::= DATABASE */ yytestcase(yyruleno==318);
      /* (319) database_kw_opt ::= */ yytestcase(yyruleno==319);
      /* (320) kwcolumn_opt ::= */ yytestcase(yyruleno==320);
      /* (321) kwcolumn_opt ::= COLUMNKW */ yytestcase(yyruleno==321);
      /* (322) vtabarglist ::= vtabarg */ yytestcase(yyruleno==322);
      /* (323) vtabarglist ::= vtabarglist COMMA vtabarg */ yytestcase(yyruleno==323);
      /* (324) vtabarg ::= vtabarg vtabargtoken */ yytestcase(yyruleno==324);
      /* (325) anylist ::= */ yytestcase(yyruleno==325);
      /* (326) anylist ::= anylist LP anylist RP */ yytestcase(yyruleno==326);
      /* (327) anylist ::= anylist ANY */ yytestcase(yyruleno==327);
        break;
/********** End reduce actions ************************************************/
  };
  assert( yyruleno<sizeof(yyRuleInfo)/sizeof(yyRuleInfo[0]) );
  yygoto = yyRuleInfo[yyruleno].lhs;
  yysize = yyRuleInfo[yyruleno].nrhs;
  yyact = yy_find_reduce_action(yymsp[-yysize].stateno,(YYCODETYPE)yygoto);
................................................................................
          fprintf(yyTraceFILE,"%sDiscard input token %s\n",
             yyTracePrompt,yyTokenName[yymajor]);
        }
#endif
        yy_destructor(yypParser, (YYCODETYPE)yymajor, &yyminorunion);
        yymajor = YYNOCODE;
      }else{
        while( yypParser->yytos >= &yypParser->yystack
            && yymx != YYERRORSYMBOL
            && (yyact = yy_find_reduce_action(
                        yypParser->yytos->stateno,
                        YYERRORSYMBOL)) >= YY_MIN_REDUCE
        ){
          yy_pop_parser_stack(yypParser);
        }
................................................................................
    return SQLITE_NOMEM_BKPT;
  }
  assert( pParse->pNewTable==0 );
  assert( pParse->pNewTrigger==0 );
  assert( pParse->nVar==0 );
  assert( pParse->nzVar==0 );
  assert( pParse->azVar==0 );
  while( zSql[i]!=0 ){
    assert( i>=0 );

    pParse->sLastToken.z = &zSql[i];
    pParse->sLastToken.n = sqlite3GetToken((unsigned char*)&zSql[i],&tokenType);
    i += pParse->sLastToken.n;
    if( i>mxSqlLen ){
      pParse->rc = SQLITE_TOOBIG;
      break;











    }
    if( tokenType>=TK_SPACE ){
      assert( tokenType==TK_SPACE || tokenType==TK_ILLEGAL );
      if( db->u1.isInterrupted ){
        pParse->rc = SQLITE_INTERRUPT;
        break;
      }
................................................................................
      sqlite3Parser(pEngine, tokenType, pParse->sLastToken, pParse);
      lastTokenParsed = tokenType;
      if( pParse->rc!=SQLITE_OK || db->mallocFailed ) break;
    }
  }
  assert( nErr==0 );
  pParse->zTail = &zSql[i];
  if( pParse->rc==SQLITE_OK && db->mallocFailed==0 ){
    assert( zSql[i]==0 );
    if( lastTokenParsed!=TK_SEMI ){
      sqlite3Parser(pEngine, TK_SEMI, pParse->sLastToken, pParse);
    }
    if( pParse->rc==SQLITE_OK && db->mallocFailed==0 ){
      sqlite3Parser(pEngine, 0, pParse->sLastToken, pParse);
    }
  }
#ifdef YYTRACKMAXSTACKDEPTH
  sqlite3_mutex_enter(sqlite3MallocMutex());
  sqlite3StatusHighwater(SQLITE_STATUS_PARSER_STACK,
      sqlite3ParserStackPeak(pEngine)
  );
  sqlite3_mutex_leave(sqlite3MallocMutex());
#endif /* YYDEBUG */
................................................................................
** Whitespace never causes a state transition and is always ignored.
** This means that a SQL string of all whitespace is invalid.
**
** If we compile with SQLITE_OMIT_TRIGGER, all of the computation needed
** to recognize the end of a trigger can be omitted.  All we have to do
** is look for a semicolon that is not part of an string or comment.
*/
SQLITE_API int SQLITE_APICALL sqlite3_complete(const char *zSql){
  u8 state = 0;   /* Current state, using numbers defined in header comment */
  u8 token;       /* Value of the next token */

#ifndef SQLITE_OMIT_TRIGGER
  /* A complex statement machine used to detect the end of a CREATE TRIGGER
  ** statement.  This is the normal case.
  */
................................................................................

#ifndef SQLITE_OMIT_UTF16
/*
** This routine is the same as the sqlite3_complete() routine described
** above, except that the parameter is required to be UTF-16 encoded, not
** UTF-8.
*/
SQLITE_API int SQLITE_APICALL sqlite3_complete16(const void *zSql){
  sqlite3_value *pVal;
  char const *zSql8;
  int rc;

#ifndef SQLITE_OMIT_AUTOINIT
  rc = sqlite3_initialize();
  if( rc ) return rc;
................................................................................
*/
SQLITE_API const char sqlite3_version[] = SQLITE_VERSION;
#endif

/* IMPLEMENTATION-OF: R-53536-42575 The sqlite3_libversion() function returns
** a pointer to the to the sqlite3_version[] string constant. 
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_libversion(void){ return sqlite3_version; }

/* IMPLEMENTATION-OF: R-63124-39300 The sqlite3_sourceid() function returns a
** pointer to a string constant whose value is the same as the
** SQLITE_SOURCE_ID C preprocessor macro. 
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_sourceid(void){ return SQLITE_SOURCE_ID; }

/* IMPLEMENTATION-OF: R-35210-63508 The sqlite3_libversion_number() function
** returns an integer equal to SQLITE_VERSION_NUMBER.
*/
SQLITE_API int SQLITE_APICALL sqlite3_libversion_number(void){ return SQLITE_VERSION_NUMBER; }

/* IMPLEMENTATION-OF: R-20790-14025 The sqlite3_threadsafe() function returns
** zero if and only if SQLite was compiled with mutexing code omitted due to
** the SQLITE_THREADSAFE compile-time option being set to 0.
*/
SQLITE_API int SQLITE_APICALL sqlite3_threadsafe(void){ return SQLITE_THREADSAFE; }

/*
** When compiling the test fixture or with debugging enabled (on Win32),
** this variable being set to non-zero will cause OSTRACE macros to emit
** extra diagnostic information.
*/
#ifdef SQLITE_HAVE_OS_TRACE
................................................................................
**
**    *  Calls to this routine from Y must block until the outer-most
**       call by X completes.
**
**    *  Recursive calls to this routine from thread X return immediately
**       without blocking.
*/
SQLITE_API int SQLITE_APICALL sqlite3_initialize(void){
  MUTEX_LOGIC( sqlite3_mutex *pMaster; )       /* The main static mutex */
  int rc;                                      /* Result code */
#ifdef SQLITE_EXTRA_INIT
  int bRunExtraInit = 0;                       /* Extra initialization needed */
#endif

#ifdef SQLITE_OMIT_WSD
................................................................................
** Undo the effects of sqlite3_initialize().  Must not be called while
** there are outstanding database connections or memory allocations or
** while any part of SQLite is otherwise in use in any thread.  This
** routine is not threadsafe.  But it is safe to invoke this routine
** on when SQLite is already shut down.  If SQLite is already shut down
** when this routine is invoked, then this routine is a harmless no-op.
*/
SQLITE_API int SQLITE_APICALL sqlite3_shutdown(void){
#ifdef SQLITE_OMIT_WSD
  int rc = sqlite3_wsd_init(4096, 24);
  if( rc!=SQLITE_OK ){
    return rc;
  }
#endif

................................................................................
** the SQLite library at run-time.
**
** This routine should only be called when there are no outstanding
** database connections or memory allocations.  This routine is not
** threadsafe.  Failure to heed these warnings can lead to unpredictable
** behavior.
*/
SQLITE_API int SQLITE_CDECL sqlite3_config(int op, ...){
  va_list ap;
  int rc = SQLITE_OK;

  /* sqlite3_config() shall return SQLITE_MISUSE if it is invoked while
  ** the SQLite library is in use. */
  if( sqlite3GlobalConfig.isInit ) return SQLITE_MISUSE_BKPT;

................................................................................
#endif /* SQLITE_OMIT_LOOKASIDE */
  return SQLITE_OK;
}

/*
** Return the mutex associated with a database connection.
*/
SQLITE_API sqlite3_mutex *SQLITE_APICALL sqlite3_db_mutex(sqlite3 *db){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
  return db->mutex;
}

/*
** Free up as much memory as we can from the given database
** connection.
*/
SQLITE_API int SQLITE_APICALL sqlite3_db_release_memory(sqlite3 *db){
  int i;

#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
#endif
  sqlite3_mutex_enter(db->mutex);
  sqlite3BtreeEnterAll(db);
................................................................................
  return SQLITE_OK;
}

/*
** Flush any dirty pages in the pager-cache for any attached database
** to disk.
*/
SQLITE_API int SQLITE_APICALL sqlite3_db_cacheflush(sqlite3 *db){
  int i;
  int rc = SQLITE_OK;
  int bSeenBusy = 0;

#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
#endif
................................................................................
  sqlite3_mutex_leave(db->mutex);
  return ((rc==SQLITE_OK && bSeenBusy) ? SQLITE_BUSY : rc);
}

/*
** Configuration settings for an individual database connection
*/
SQLITE_API int SQLITE_CDECL sqlite3_db_config(sqlite3 *db, int op, ...){
  va_list ap;
  int rc;
  va_start(ap, op);
  switch( op ){





    case SQLITE_DBCONFIG_LOOKASIDE: {
      void *pBuf = va_arg(ap, void*); /* IMP: R-26835-10964 */
      int sz = va_arg(ap, int);       /* IMP: R-47871-25994 */
      int cnt = va_arg(ap, int);      /* IMP: R-04460-53386 */
      rc = setupLookaside(db, pBuf, sz, cnt);
      break;
    }
................................................................................
  }
  return r;
}

/*
** Return the ROWID of the most recent insert
*/
SQLITE_API sqlite_int64 SQLITE_APICALL sqlite3_last_insert_rowid(sqlite3 *db){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
  return db->lastRowid;
}

/*
** Return the number of changes in the most recent call to sqlite3_exec().
*/
SQLITE_API int SQLITE_APICALL sqlite3_changes(sqlite3 *db){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
  return db->nChange;
}

/*
** Return the number of changes since the database handle was opened.
*/
SQLITE_API int SQLITE_APICALL sqlite3_total_changes(sqlite3 *db){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
  return db->nTotalChange;
................................................................................
** connection. The sqlite3_close() version returns SQLITE_BUSY and
** leaves the connection option if there are unfinalized prepared
** statements or unfinished sqlite3_backups.  The sqlite3_close_v2()
** version forces the connection to become a zombie if there are
** unclosed resources, and arranges for deallocation when the last
** prepare statement or sqlite3_backup closes.
*/
SQLITE_API int SQLITE_APICALL sqlite3_close(sqlite3 *db){ return sqlite3Close(db,0); }
SQLITE_API int SQLITE_APICALL sqlite3_close_v2(sqlite3 *db){ return sqlite3Close(db,1); }


/*
** Close the mutex on database connection db.
**
** Furthermore, if database connection db is a zombie (meaning that there
** has been a prior call to sqlite3_close(db) or sqlite3_close_v2(db)) and
................................................................................
  return rc; 
}

/*
** This routine sets the busy callback for an Sqlite database to the
** given callback function with the given argument.
*/
SQLITE_API int SQLITE_APICALL sqlite3_busy_handler(
  sqlite3 *db,
  int (*xBusy)(void*,int),
  void *pArg
){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
#endif
................................................................................

#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
/*
** This routine sets the progress callback for an Sqlite database to the
** given callback function with the given argument. The progress callback will
** be invoked every nOps opcodes.
*/
SQLITE_API void SQLITE_APICALL sqlite3_progress_handler(
  sqlite3 *db, 
  int nOps,
  int (*xProgress)(void*), 
  void *pArg
){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ){
................................................................................
#endif


/*
** This routine installs a default busy handler that waits for the
** specified number of milliseconds before returning 0.
*/
SQLITE_API int SQLITE_APICALL sqlite3_busy_timeout(sqlite3 *db, int ms){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
#endif
  if( ms>0 ){
    sqlite3_busy_handler(db, sqliteDefaultBusyCallback, (void*)db);
    db->busyTimeout = ms;
  }else{
................................................................................
  }
  return SQLITE_OK;
}

/*
** Cause any pending operation to stop at its earliest opportunity.
*/
SQLITE_API void SQLITE_APICALL sqlite3_interrupt(sqlite3 *db){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ){
    (void)SQLITE_MISUSE_BKPT;
    return;
  }
#endif
  db->u1.isInterrupted = 1;
................................................................................
  p->nArg = (u16)nArg;
  return SQLITE_OK;
}

/*
** Create new user functions.
*/
SQLITE_API int SQLITE_APICALL sqlite3_create_function(
  sqlite3 *db,
  const char *zFunc,
  int nArg,
  int enc,
  void *p,
  void (*xSFunc)(sqlite3_context*,int,sqlite3_value **),
  void (*xStep)(sqlite3_context*,int,sqlite3_value **),
  void (*xFinal)(sqlite3_context*)
){
  return sqlite3_create_function_v2(db, zFunc, nArg, enc, p, xSFunc, xStep,
                                    xFinal, 0);
}

SQLITE_API int SQLITE_APICALL sqlite3_create_function_v2(
  sqlite3 *db,
  const char *zFunc,
  int nArg,
  int enc,
  void *p,
  void (*xSFunc)(sqlite3_context*,int,sqlite3_value **),
  void (*xStep)(sqlite3_context*,int,sqlite3_value **),
................................................................................
 out:
  rc = sqlite3ApiExit(db, rc);
  sqlite3_mutex_leave(db->mutex);
  return rc;
}

#ifndef SQLITE_OMIT_UTF16
SQLITE_API int SQLITE_APICALL sqlite3_create_function16(
  sqlite3 *db,
  const void *zFunctionName,
  int nArg,
  int eTextRep,
  void *p,
  void (*xSFunc)(sqlite3_context*,int,sqlite3_value**),
  void (*xStep)(sqlite3_context*,int,sqlite3_value**),
................................................................................
** a new one that always throws a run-time error.  
**
** When virtual tables intend to provide an overloaded function, they
** should call this routine to make sure the global function exists.
** A global function must exist in order for name resolution to work
** properly.
*/
SQLITE_API int SQLITE_APICALL sqlite3_overload_function(
  sqlite3 *db,
  const char *zName,
  int nArg
){
  int rc = SQLITE_OK;

#ifdef SQLITE_ENABLE_API_ARMOR
................................................................................
** is returned.  
**
** A NULL trace function means that no tracing is executes.  A non-NULL
** trace is a pointer to a function that is invoked at the start of each
** SQL statement.
*/
#ifndef SQLITE_OMIT_DEPRECATED
SQLITE_API void *SQLITE_APICALL sqlite3_trace(sqlite3 *db, void(*xTrace)(void*,const char*), void *pArg){
  void *pOld;

#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
................................................................................
  sqlite3_mutex_leave(db->mutex);
  return pOld;
}
#endif /* SQLITE_OMIT_DEPRECATED */

/* Register a trace callback using the version-2 interface.
*/
SQLITE_API int SQLITE_APICALL sqlite3_trace_v2(
  sqlite3 *db,                               /* Trace this connection */
  unsigned mTrace,                           /* Mask of events to be traced */
  int(*xTrace)(unsigned,void*,void*,void*),  /* Callback to invoke */
  void *pArg                                 /* Context */
){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ){
    return SQLITE_MISUSE_BKPT;
  }
#endif
  sqlite3_mutex_enter(db->mutex);


  db->mTrace = mTrace;
  db->xTrace = xTrace;
  db->pTraceArg = pArg;
  sqlite3_mutex_leave(db->mutex);
  return SQLITE_OK;
}

................................................................................
** Register a profile function.  The pArg from the previously registered 
** profile function is returned.  
**
** A NULL profile function means that no profiling is executes.  A non-NULL
** profile is a pointer to a function that is invoked at the conclusion of
** each SQL statement that is run.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_profile(
  sqlite3 *db,
  void (*xProfile)(void*,const char*,sqlite_uint64),
  void *pArg
){
  void *pOld;

#ifdef SQLITE_ENABLE_API_ARMOR
................................................................................
#endif /* SQLITE_OMIT_TRACE */

/*
** Register a function to be invoked when a transaction commits.
** If the invoked function returns non-zero, then the commit becomes a
** rollback.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_commit_hook(
  sqlite3 *db,              /* Attach the hook to this database */
  int (*xCallback)(void*),  /* Function to invoke on each commit */
  void *pArg                /* Argument to the function */
){
  void *pOld;

#ifdef SQLITE_ENABLE_API_ARMOR
................................................................................
  return pOld;
}

/*
** Register a callback to be invoked each time a row is updated,
** inserted or deleted using this database connection.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_update_hook(
  sqlite3 *db,              /* Attach the hook to this database */
  void (*xCallback)(void*,int,char const *,char const *,sqlite_int64),
  void *pArg                /* Argument to the function */
){
  void *pRet;

#ifdef SQLITE_ENABLE_API_ARMOR
................................................................................
  return pRet;
}

/*
** Register a callback to be invoked each time a transaction is rolled
** back by this database connection.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_rollback_hook(
  sqlite3 *db,              /* Attach the hook to this database */
  void (*xCallback)(void*), /* Callback function */
  void *pArg                /* Argument to the function */
){
  void *pRet;

#ifdef SQLITE_ENABLE_API_ARMOR
................................................................................
}

#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
/*
** Register a callback to be invoked each time a row is updated,
** inserted or deleted using this database connection.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_preupdate_hook(
  sqlite3 *db,              /* Attach the hook to this database */
  void(*xCallback)(         /* Callback function */
    void*,sqlite3*,int,char const*,char const*,sqlite3_int64,sqlite3_int64),
  void *pArg                /* First callback argument */
){
  void *pRet;
  sqlite3_mutex_enter(db->mutex);
................................................................................
** nFrame parameter disables automatic checkpoints entirely.
**
** The callback registered by this function replaces any existing callback
** registered using sqlite3_wal_hook(). Likewise, registering a callback
** using sqlite3_wal_hook() disables the automatic checkpoint mechanism
** configured by this function.
*/
SQLITE_API int SQLITE_APICALL sqlite3_wal_autocheckpoint(sqlite3 *db, int nFrame){
#ifdef SQLITE_OMIT_WAL
  UNUSED_PARAMETER(db);
  UNUSED_PARAMETER(nFrame);
#else
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
#endif
................................................................................
  return SQLITE_OK;
}

/*
** Register a callback to be invoked each time a transaction is written
** into the write-ahead-log by this database connection.
*/
SQLITE_API void *SQLITE_APICALL sqlite3_wal_hook(
  sqlite3 *db,                    /* Attach the hook to this db handle */
  int(*xCallback)(void *, sqlite3*, const char*, int),
  void *pArg                      /* First argument passed to xCallback() */
){
#ifndef SQLITE_OMIT_WAL
  void *pRet;
#ifdef SQLITE_ENABLE_API_ARMOR
................................................................................
  return 0;
#endif
}

/*
** Checkpoint database zDb.
*/
SQLITE_API int SQLITE_APICALL sqlite3_wal_checkpoint_v2(
  sqlite3 *db,                    /* Database handle */
  const char *zDb,                /* Name of attached database (or NULL) */
  int eMode,                      /* SQLITE_CHECKPOINT_* value */
  int *pnLog,                     /* OUT: Size of WAL log in frames */
  int *pnCkpt                     /* OUT: Total number of frames checkpointed */
){
#ifdef SQLITE_OMIT_WAL
................................................................................


/*
** Checkpoint database zDb. If zDb is NULL, or if the buffer zDb points
** to contains a zero-length string, all attached databases are 
** checkpointed.
*/
SQLITE_API int SQLITE_APICALL sqlite3_wal_checkpoint(sqlite3 *db, const char *zDb){
  /* EVIDENCE-OF: R-41613-20553 The sqlite3_wal_checkpoint(D,X) is equivalent to
  ** sqlite3_wal_checkpoint_v2(D,X,SQLITE_CHECKPOINT_PASSIVE,0,0). */
  return sqlite3_wal_checkpoint_v2(db,zDb,SQLITE_CHECKPOINT_PASSIVE,0,0);
}

#ifndef SQLITE_OMIT_WAL
/*
................................................................................
#endif
}

/*
** Return UTF-8 encoded English language explanation of the most recent
** error.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_errmsg(sqlite3 *db){
  const char *z;
  if( !db ){
    return sqlite3ErrStr(SQLITE_NOMEM_BKPT);
  }
  if( !sqlite3SafetyCheckSickOrOk(db) ){
    return sqlite3ErrStr(SQLITE_MISUSE_BKPT);
  }
................................................................................
}

#ifndef SQLITE_OMIT_UTF16
/*
** Return UTF-16 encoded English language explanation of the most recent
** error.
*/
SQLITE_API const void *SQLITE_APICALL sqlite3_errmsg16(sqlite3 *db){
  static const u16 outOfMem[] = {
    'o', 'u', 't', ' ', 'o', 'f', ' ', 'm', 'e', 'm', 'o', 'r', 'y', 0
  };
  static const u16 misuse[] = {
    'l', 'i', 'b', 'r', 'a', 'r', 'y', ' ', 
    'r', 'o', 'u', 't', 'i', 'n', 'e', ' ', 
    'c', 'a', 'l', 'l', 'e', 'd', ' ', 
................................................................................
}
#endif /* SQLITE_OMIT_UTF16 */

/*
** Return the most recent error code generated by an SQLite routine. If NULL is
** passed to this function, we assume a malloc() failed during sqlite3_open().
*/
SQLITE_API int SQLITE_APICALL sqlite3_errcode(sqlite3 *db){
  if( db && !sqlite3SafetyCheckSickOrOk(db) ){
    return SQLITE_MISUSE_BKPT;
  }
  if( !db || db->mallocFailed ){
    return SQLITE_NOMEM_BKPT;
  }
  return db->errCode & db->errMask;
}
SQLITE_API int SQLITE_APICALL sqlite3_extended_errcode(sqlite3 *db){
  if( db && !sqlite3SafetyCheckSickOrOk(db) ){
    return SQLITE_MISUSE_BKPT;
  }
  if( !db || db->mallocFailed ){
    return SQLITE_NOMEM_BKPT;
  }
  return db->errCode;
}
SQLITE_API int SQLITE_APICALL sqlite3_system_errno(sqlite3 *db){
  return db ? db->iSysErrno : 0;
}  

/*
** Return a string that describes the kind of error specified in the
** argument.  For now, this simply calls the internal sqlite3ErrStr()
** function.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_errstr(int rc){
  return sqlite3ErrStr(rc);
}

/*
** Create a new collating function for database "db".  The name is zName
** and the encoding is enc.
*/
................................................................................
** Make no changes but still report the old value if the
** new limit is negative.
**
** A new lower limit does not shrink existing constructs.
** It merely prevents new constructs that exceed the limit
** from forming.
*/
SQLITE_API int SQLITE_APICALL sqlite3_limit(sqlite3 *db, int limitId, int newLimit){
  int oldLimit;

#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ){
    (void)SQLITE_MISUSE_BKPT;
    return -1;
  }
................................................................................
  if( !db->mallocFailed ) ENC(db) = SCHEMA_ENC(db);
  sqlite3BtreeLeave(db->aDb[0].pBt);
  db->aDb[1].pSchema = sqlite3SchemaGet(db, 0);

  /* The default safety_level for the main database is FULL; for the temp
  ** database it is OFF. This matches the pager layer defaults.  
  */
  db->aDb[0].zName = "main";
  db->aDb[0].safety_level = SQLITE_DEFAULT_SYNCHRONOUS+1;
  db->aDb[1].zName = "temp";
  db->aDb[1].safety_level = PAGER_SYNCHRONOUS_OFF;

  db->magic = SQLITE_MAGIC_OPEN;
  if( db->mallocFailed ){
    goto opendb_out;
  }

  /* Register all built-in functions, but do not attempt to read the
  ** database schema yet. This is delayed until the first time the database
  ** is accessed.
  */
  sqlite3Error(db, SQLITE_OK);
  sqlite3RegisterPerConnectionBuiltinFunctions(db);











  /* Load automatic extensions - extensions that have been registered
  ** using the sqlite3_automatic_extension() API.
  */
  rc = sqlite3_errcode(db);
  if( rc==SQLITE_OK ){
    sqlite3AutoLoadExtensions(db);
    rc = sqlite3_errcode(db);
    if( rc!=SQLITE_OK ){
      goto opendb_out;
    }
  }
................................................................................
  }
#endif

#ifdef SQLITE_ENABLE_FTS3 /* automatically defined by SQLITE_ENABLE_FTS4 */
  if( !db->mallocFailed && rc==SQLITE_OK ){
    rc = sqlite3Fts3Init(db);
  }
#endif

#ifdef SQLITE_ENABLE_FTS5
  if( !db->mallocFailed && rc==SQLITE_OK ){
    rc = sqlite3Fts5Init(db);
  }
#endif

#ifdef SQLITE_ENABLE_ICU
  if( !db->mallocFailed && rc==SQLITE_OK ){
    rc = sqlite3IcuInit(db);
  }
#endif
................................................................................
  sqlite3_free(zOpen);
  return rc & 0xff;
}

/*
** Open a new database handle.
*/
SQLITE_API int SQLITE_APICALL sqlite3_open(
  const char *zFilename, 
  sqlite3 **ppDb 
){
  return openDatabase(zFilename, ppDb,
                      SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, 0);
}
SQLITE_API int SQLITE_APICALL sqlite3_open_v2(
  const char *filename,   /* Database filename (UTF-8) */
  sqlite3 **ppDb,         /* OUT: SQLite db handle */
  int flags,              /* Flags */
  const char *zVfs        /* Name of VFS module to use */
){
  return openDatabase(filename, ppDb, (unsigned int)flags, zVfs);
}

#ifndef SQLITE_OMIT_UTF16
/*
** Open a new database handle.
*/
SQLITE_API int SQLITE_APICALL sqlite3_open16(
  const void *zFilename, 
  sqlite3 **ppDb
){
  char const *zFilename8;   /* zFilename encoded in UTF-8 instead of UTF-16 */
  sqlite3_value *pVal;
  int rc;

................................................................................
  return rc & 0xff;
}
#endif /* SQLITE_OMIT_UTF16 */

/*
** Register a new collation sequence with the database handle db.
*/
SQLITE_API int SQLITE_APICALL sqlite3_create_collation(
  sqlite3* db, 
  const char *zName, 
  int enc, 
  void* pCtx,
  int(*xCompare)(void*,int,const void*,int,const void*)
){
  return sqlite3_create_collation_v2(db, zName, enc, pCtx, xCompare, 0);
}

/*
** Register a new collation sequence with the database handle db.
*/
SQLITE_API int SQLITE_APICALL sqlite3_create_collation_v2(
  sqlite3* db, 
  const char *zName, 
  int enc, 
  void* pCtx,
  int(*xCompare)(void*,int,const void*,int,const void*),
  void(*xDel)(void*)
){
................................................................................
  return rc;
}

#ifndef SQLITE_OMIT_UTF16
/*
** Register a new collation sequence with the database handle db.
*/
SQLITE_API int SQLITE_APICALL sqlite3_create_collation16(
  sqlite3* db, 
  const void *zName,
  int enc, 
  void* pCtx,
  int(*xCompare)(void*,int,const void*,int,const void*)
){
  int rc = SQLITE_OK;
................................................................................
}
#endif /* SQLITE_OMIT_UTF16 */

/*
** Register a collation sequence factory callback with the database handle
** db. Replace any previously installed collation sequence factory.
*/
SQLITE_API int SQLITE_APICALL sqlite3_collation_needed(
  sqlite3 *db, 
  void *pCollNeededArg, 
  void(*xCollNeeded)(void*,sqlite3*,int eTextRep,const char*)
){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
#endif
................................................................................
}

#ifndef SQLITE_OMIT_UTF16
/*
** Register a collation sequence factory callback with the database handle
** db. Replace any previously installed collation sequence factory.
*/
SQLITE_API int SQLITE_APICALL sqlite3_collation_needed16(
  sqlite3 *db, 
  void *pCollNeededArg, 
  void(*xCollNeeded16)(void*,sqlite3*,int eTextRep,const void*)
){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
#endif
................................................................................
#endif /* SQLITE_OMIT_UTF16 */

#ifndef SQLITE_OMIT_DEPRECATED
/*
** This function is now an anachronism. It used to be used to recover from a
** malloc() failure, but SQLite now does this automatically.
*/
SQLITE_API int SQLITE_APICALL sqlite3_global_recover(void){
  return SQLITE_OK;
}
#endif

/*
** Test to see whether or not the database connection is in autocommit
** mode.  Return TRUE if it is and FALSE if not.  Autocommit mode is on
** by default.  Autocommit is disabled by a BEGIN statement and reenabled
** by the next COMMIT or ROLLBACK.
*/
SQLITE_API int SQLITE_APICALL sqlite3_get_autocommit(sqlite3 *db){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
  return db->autoCommit;
................................................................................
/*
** This is a convenience routine that makes sure that all thread-specific
** data for this thread has been deallocated.
**
** SQLite no longer uses thread-specific data so this routine is now a
** no-op.  It is retained for historical compatibility.
*/
SQLITE_API void SQLITE_APICALL sqlite3_thread_cleanup(void){
}
#endif

/*
** Return meta information about a specific column of a database table.
** See comment in sqlite3.h (sqlite.h.in) for details.
*/
SQLITE_API int SQLITE_APICALL sqlite3_table_column_metadata(
  sqlite3 *db,                /* Connection handle */
  const char *zDbName,        /* Database name or NULL */
  const char *zTableName,     /* Table name */
  const char *zColumnName,    /* Column name */
  char const **pzDataType,    /* OUTPUT: Declared data type */
  char const **pzCollSeq,     /* OUTPUT: Collation sequence name */
  int *pNotNull,              /* OUTPUT: True if NOT NULL constraint exists */
................................................................................
  sqlite3_mutex_leave(db->mutex);
  return rc;
}

/*
** Sleep for a little while.  Return the amount of time slept.
*/
SQLITE_API int SQLITE_APICALL sqlite3_sleep(int ms){
  sqlite3_vfs *pVfs;
  int rc;
  pVfs = sqlite3_vfs_find(0);
  if( pVfs==0 ) return 0;

  /* This function works in milliseconds, but the underlying OsSleep() 
  ** API uses microseconds. Hence the 1000's.
................................................................................
  rc = (sqlite3OsSleep(pVfs, 1000*ms)/1000);
  return rc;
}

/*
** Enable or disable the extended result codes.
*/
SQLITE_API int SQLITE_APICALL sqlite3_extended_result_codes(sqlite3 *db, int onoff){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
#endif
  sqlite3_mutex_enter(db->mutex);
  db->errMask = onoff ? 0xffffffff : 0xff;
  sqlite3_mutex_leave(db->mutex);
  return SQLITE_OK;
}

/*
** Invoke the xFileControl method on a particular database.
*/
SQLITE_API int SQLITE_APICALL sqlite3_file_control(sqlite3 *db, const char *zDbName, int op, void *pArg){
  int rc = SQLITE_ERROR;
  Btree *pBtree;

#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
#endif
  sqlite3_mutex_enter(db->mutex);
................................................................................
  sqlite3_mutex_leave(db->mutex);
  return rc;
}

/*
** Interface to the testing logic.
*/
SQLITE_API int SQLITE_CDECL sqlite3_test_control(int op, ...){
  int rc = 0;
#ifdef SQLITE_OMIT_BUILTIN_TEST
  UNUSED_PARAMETER(op);
#else
  va_list ap;
  va_start(ap, op);
  switch( op ){
................................................................................
    ** that demonstrat invariants on well-formed database files.
    */
    case SQLITE_TESTCTRL_NEVER_CORRUPT: {
      sqlite3GlobalConfig.neverCorrupt = va_arg(ap, int);
      break;
    }











    /*   sqlite3_test_control(SQLITE_TESTCTRL_VDBE_COVERAGE, xCallback, ptr);
    **
    ** Set the VDBE coverage callback function to xCallback with context 
    ** pointer ptr.
    */
    case SQLITE_TESTCTRL_VDBE_COVERAGE: {
................................................................................
**
** The zFilename argument is the filename pointer passed into the xOpen()
** method of a VFS implementation.  The zParam argument is the name of the
** query parameter we seek.  This routine returns the value of the zParam
** parameter if it exists.  If the parameter does not exist, this routine
** returns a NULL pointer.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_uri_parameter(const char *zFilename, const char *zParam){
  if( zFilename==0 || zParam==0 ) return 0;
  zFilename += sqlite3Strlen30(zFilename) + 1;
  while( zFilename[0] ){
    int x = strcmp(zFilename, zParam);
    zFilename += sqlite3Strlen30(zFilename) + 1;
    if( x==0 ) return zFilename;
    zFilename += sqlite3Strlen30(zFilename) + 1;
................................................................................
  }
  return 0;
}

/*
** Return a boolean value for a query parameter.
*/
SQLITE_API int SQLITE_APICALL sqlite3_uri_boolean(const char *zFilename, const char *zParam, int bDflt){
  const char *z = sqlite3_uri_parameter(zFilename, zParam);
  bDflt = bDflt!=0;
  return z ? sqlite3GetBoolean(z, bDflt) : bDflt;
}

/*
** Return a 64-bit integer value for a query parameter.
*/
SQLITE_API sqlite3_int64 SQLITE_APICALL sqlite3_uri_int64(
  const char *zFilename,    /* Filename as passed to xOpen */
  const char *zParam,       /* URI parameter sought */
  sqlite3_int64 bDflt       /* return if parameter is missing */
){
  const char *z = sqlite3_uri_parameter(zFilename, zParam);
  sqlite3_int64 v;
  if( z && sqlite3DecOrHexToI64(z, &v)==SQLITE_OK ){
................................................................................
/*
** Return the Btree pointer identified by zDbName.  Return NULL if not found.
*/
SQLITE_PRIVATE Btree *sqlite3DbNameToBtree(sqlite3 *db, const char *zDbName){
  int i;
  for(i=0; i<db->nDb; i++){
    if( db->aDb[i].pBt
     && (zDbName==0 || sqlite3StrICmp(zDbName, db->aDb[i].zName)==0)
    ){
      return db->aDb[i].pBt;
    }
  }
  return 0;
}

/*
** Return the filename of the database associated with a database
** connection.
*/
SQLITE_API const char *SQLITE_APICALL sqlite3_db_filename(sqlite3 *db, const char *zDbName){
  Btree *pBt;
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
................................................................................
  return pBt ? sqlite3BtreeGetFilename(pBt) : 0;
}

/*
** Return 1 if database is read-only or 0 if read/write.  Return -1 if
** no such database exists.
*/
SQLITE_API int SQLITE_APICALL sqlite3_db_readonly(sqlite3 *db, const char *zDbName){
  Btree *pBt;
#ifdef SQLITE_ENABLE_API_ARMOR
  if( !sqlite3SafetyCheckOk(db) ){
    (void)SQLITE_MISUSE_BKPT;
    return -1;
  }
#endif
................................................................................
}

#ifdef SQLITE_ENABLE_SNAPSHOT
/*
** Obtain a snapshot handle for the snapshot of database zDb currently 
** being read by handle db.
*/
SQLITE_API int SQLITE_APICALL sqlite3_snapshot_get(
  sqlite3 *db, 
  const char *zDb,
  sqlite3_snapshot **ppSnapshot
){
  int rc = SQLITE_ERROR;
#ifndef SQLITE_OMIT_WAL
  int iDb;
................................................................................
#endif   /* SQLITE_OMIT_WAL */
  return rc;
}

/*
** Open a read-transaction on the snapshot idendified by pSnapshot.
*/
SQLITE_API int SQLITE_APICALL sqlite3_snapshot_open(
  sqlite3 *db, 
  const char *zDb, 
  sqlite3_snapshot *pSnapshot
){
  int rc = SQLITE_ERROR;
#ifndef SQLITE_OMIT_WAL

................................................................................
#endif   /* SQLITE_OMIT_WAL */
  return rc;
}

/*
** Free a snapshot handle obtained from sqlite3_snapshot_get().
*/
SQLITE_API void SQLITE_APICALL sqlite3_snapshot_free(sqlite3_snapshot *pSnapshot){
  sqlite3_free(pSnapshot);
}
#endif /* SQLITE_ENABLE_SNAPSHOT */

/************** End of main.c ************************************************/
/************** Begin file notify.c ******************************************/
/*
................................................................................
** Otherwise, make arrangements to invoke xNotify when pOther drops
** its locks.
**
** Each call to this routine overrides any prior callbacks registered
** on the same "db".  If xNotify==0 then any prior callbacks are immediately
** cancelled.
*/
SQLITE_API int SQLITE_APICALL sqlite3_unlock_notify(
  sqlite3 *db,
  void (*xNotify)(void **, int),
  void *pArg
){
  int rc = SQLITE_OK;

  sqlite3_mutex_enter(db->mutex);
................................................................................
#if !SQLITE_CORE
/*
** Initialize API pointer table, if required.
*/
#ifdef _WIN32
__declspec(dllexport)
#endif
SQLITE_API int SQLITE_APICALL sqlite3_fts3_init(
  sqlite3 *db, 
  char **pzErrMsg,
  const sqlite3_api_routines *pApi
){
  SQLITE_EXTENSION_INIT2(pApi)
  return sqlite3Fts3Init(db);
}
................................................................................
  memset(pCsr, 0, sizeof(RtreeCursor));
  pCsr->base.pVtab = (sqlite3_vtab*)pRtree;

  pCsr->iStrategy = idxNum;
  if( idxNum==1 ){
    /* Special case - lookup by rowid. */
    RtreeNode *pLeaf;        /* Leaf on which the required cell resides */
    RtreeSearchPoint *p;     /* Search point for the the leaf */
    i64 iRowid = sqlite3_value_int64(argv[0]);
    i64 iNode = 0;
    rc = findLeafNode(pRtree, iRowid, &pLeaf, &iNode);
    if( rc==SQLITE_OK && pLeaf!=0 ){
      p = rtreeSearchPointNew(pCsr, RTREE_ZERO, 0);
      assert( p!=0 );  /* Always returns pCsr->sPoint */
      pCsr->aNode[0] = pLeaf;
................................................................................
    }
  }
}

/*
** Register a new geometry function for use with the r-tree MATCH operator.
*/
SQLITE_API int SQLITE_APICALL sqlite3_rtree_geometry_callback(
  sqlite3 *db,                  /* Register SQL function on this connection */
  const char *zGeom,            /* Name of the new SQL function */
  int (*xGeom)(sqlite3_rtree_geometry*,int,RtreeDValue*,int*), /* Callback */
  void *pContext                /* Extra data associated with the callback */
){
  RtreeGeomCallback *pGeomCtx;      /* Context object for new user-function */

................................................................................
  );
}

/*
** Register a new 2nd-generation geometry function for use with the
** r-tree MATCH operator.
*/
SQLITE_API int SQLITE_APICALL sqlite3_rtree_query_callback(
  sqlite3 *db,                 /* Register SQL function on this connection */
  const char *zQueryFunc,      /* Name of new SQL function */
  int (*xQueryFunc)(sqlite3_rtree_query_info*), /* Callback */
  void *pContext,              /* Extra data passed into the callback */
  void (*xDestructor)(void*)   /* Destructor for the extra data */
){
  RtreeGeomCallback *pGeomCtx;      /* Context object for new user-function */
................................................................................
  );
}

#if !SQLITE_CORE
#ifdef _WIN32
__declspec(dllexport)
#endif
SQLITE_API int SQLITE_APICALL sqlite3_rtree_init(
  sqlite3 *db,
  char **pzErrMsg,
  const sqlite3_api_routines *pApi
){
  SQLITE_EXTENSION_INIT2(pApi)
  return sqlite3RtreeInit(db);
}
................................................................................
  return rc;
}

#if !SQLITE_CORE
#ifdef _WIN32
__declspec(dllexport)
#endif
SQLITE_API int SQLITE_APICALL sqlite3_icu_init(
  sqlite3 *db, 
  char **pzErrMsg,
  const sqlite3_api_routines *pApi
){
  SQLITE_EXTENSION_INIT2(pApi)
  return sqlite3IcuInit(db);
}
................................................................................
** Instead of a regular table, the RBU database may also contain virtual
** tables or view named using the data_<target> naming scheme. 
**
** Instead of the plain data_<target> naming scheme, RBU database tables 
** may also be named data<integer>_<target>, where <integer> is any sequence
** of zero or more numeric characters (0-9). This can be significant because
** tables within the RBU database are always processed in order sorted by 
** name. By judicious selection of the the <integer> portion of the names
** of the RBU tables the user can therefore control the order in which they
** are processed. This can be useful, for example, to ensure that "external
** content" FTS4 tables are updated before their underlying content tables.
**
** If the target database table is a virtual table or a table that has no
** PRIMARY KEY declaration, the data_% table must also contain a column 
** named "rbu_rowid". This column is mapped to the tables implicit primary 
................................................................................
** "vfs=..." option may be passed as the zTarget option.
**
** IMPORTANT NOTE FOR ZIPVFS USERS: The RBU extension works with all of
** SQLite's built-in VFSs, including the multiplexor VFS. However it does
** not work out of the box with zipvfs. Refer to the comment describing
** the zipvfs_create_vfs() API below for details on using RBU with zipvfs.
*/
SQLITE_API sqlite3rbu *SQLITE_APICALL sqlite3rbu_open(
  const char *zTarget, 
  const char *zRbu,
  const char *zState
);

/*
** Open an RBU handle to perform an RBU vacuum on database file zTarget.
** An RBU vacuum is similar to SQLite's built-in VACUUM command, except
** that it can be suspended and resumed like an RBU update.
**
** The second argument to this function, which may not be NULL, identifies 
** a database in which to store the state of the RBU vacuum operation if
** it is suspended. The first time sqlite3rbu_vacuum() is called, to start
** an RBU vacuum operation, the state database should either not exist or
** be empty (contain no tables). If an RBU vacuum is suspended by calling
** sqlite3rbu_close() on the RBU handle before sqlite3rbu_step() has
** returned SQLITE_DONE, the vacuum state is stored in the state database. 
** The vacuum can be resumed by calling this function to open a new RBU
** handle specifying the same target and state databases.






**
** This function does not delete the state database after an RBU vacuum
** is completed, even if it created it. However, if the call to
** sqlite3rbu_close() returns any value other than SQLITE_OK, the contents
** of the state tables within the state database are zeroed. This way,
** the next call to sqlite3rbu_vacuum() opens a handle that starts a 
** new RBU vacuum operation.
**
** As with sqlite3rbu_open(), Zipvfs users should rever to the comment
** describing the sqlite3rbu_create_vfs() API function below for 
** a description of the complications associated with using RBU with 
** zipvfs databases.
*/
SQLITE_API sqlite3rbu *SQLITE_APICALL sqlite3rbu_vacuum(
  const char *zTarget, 
  const char *zState
);

/*
** Internally, each RBU connection uses a separate SQLite database 
** connection to access the target and rbu update databases. This
................................................................................
** If an error has occurred, either while opening or stepping the RBU object,
** this function may return NULL. The error code and message may be collected
** when sqlite3rbu_close() is called.
**
** Database handles returned by this function remain valid until the next
** call to any sqlite3rbu_xxx() function other than sqlite3rbu_db().
*/
SQLITE_API sqlite3 *SQLITE_APICALL sqlite3rbu_db(sqlite3rbu*, int bRbu);

/*
** Do some work towards applying the RBU update to the target db. 
**
** Return SQLITE_DONE if the update has been completely applied, or 
** SQLITE_OK if no error occurs but there remains work to do to apply
** the RBU update. If an error does occur, some other error code is 
** returned. 
**
** Once a call to sqlite3rbu_step() has returned a value other than
** SQLITE_OK, all subsequent calls on the same RBU handle are no-ops
** that immediately return the same value.
*/
SQLITE_API int SQLITE_APICALL sqlite3rbu_step(sqlite3rbu *pRbu);

/*
** Force RBU to save its state to disk.
**
** If a power failure or application crash occurs during an update, following
** system recovery RBU may resume the update from the point at which the state
** was last saved. In other words, from the most recent successful call to 
** sqlite3rbu_close() or this function.
**
** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
*/
SQLITE_API int SQLITE_APICALL sqlite3rbu_savestate(sqlite3rbu *pRbu);

/*
** Close an RBU handle. 
**
** If the RBU update has been completely applied, mark the RBU database
** as fully applied. Otherwise, assuming no error has occurred, save the
** current state of the RBU update appliation to the RBU database.
................................................................................
** message. It is the responsibility of the caller to eventually free any 
** such buffer using sqlite3_free().
**
** Otherwise, if no error occurs, this function returns SQLITE_OK if the
** update has been partially applied, or SQLITE_DONE if it has been 
** completely applied.
*/
SQLITE_API int SQLITE_APICALL sqlite3rbu_close(sqlite3rbu *pRbu, char **pzErrmsg);

/*
** Return the total number of key-value operations (inserts, deletes or 
** updates) that have been performed on the target database since the
** current RBU update was started.
*/
SQLITE_API sqlite3_int64 SQLITE_APICALL sqlite3rbu_progress(sqlite3rbu *pRbu);

/*
** Obtain permyriadage (permyriadage is to 10000 as percentage is to 100) 
** progress indications for the two stages of an RBU update. This API may
** be useful for driving GUI progress indicators and similar.
**
** An RBU update is divided into two stages:
................................................................................
** If the rbu_count table is present and populated correctly and this
** API is called during stage 1, the *pnOne output variable is set to the
** permyriadage progress of the same stage. If the rbu_count table does
** not exist, then (*pnOne) is set to -1 during stage 1. If the rbu_count
** table exists but is not correctly populated, the value of the *pnOne
** output variable during stage 1 is undefined.
*/
SQLITE_API void SQLITE_APICALL sqlite3rbu_bp_progress(sqlite3rbu *pRbu, int *pnOne, int *pnTwo);

/*
** Obtain an indication as to the current stage of an RBU update or vacuum.
** This function always returns one of the SQLITE_RBU_STATE_XXX constants
** defined in this file. Return values should be interpreted as follows:
**
** SQLITE_RBU_STATE_OAL:
................................................................................
*/
#define SQLITE_RBU_STATE_OAL        1
#define SQLITE_RBU_STATE_MOVE       2
#define SQLITE_RBU_STATE_CHECKPOINT 3
#define SQLITE_RBU_STATE_DONE       4
#define SQLITE_RBU_STATE_ERROR      5

SQLITE_API int SQLITE_APICALL sqlite3rbu_state(sqlite3rbu *pRbu);

/*
** Create an RBU VFS named zName that accesses the underlying file-system
** via existing VFS zParent. Or, if the zParent parameter is passed NULL, 
** then the new RBU VFS uses the default system VFS to access the file-system.
** The new object is registered as a non-default VFS with SQLite before 
** returning.
................................................................................
** that does not include the RBU layer results in an error.
**
** The overhead of adding the "rbu" VFS to the system is negligible for 
** non-RBU users. There is no harm in an application accessing the 
** file-system via "rbu" all the time, even if it only uses RBU functionality 
** occasionally.
*/
SQLITE_API int SQLITE_APICALL sqlite3rbu_create_vfs(const char *zName, const char *zParent);

/*
** Deregister and destroy an RBU vfs created by an earlier call to
** sqlite3rbu_create_vfs().
**
** VFS objects are not reference counted. If a VFS object is destroyed
** before all database handles that use it have been closed, the results
** are undefined.
*/
SQLITE_API void SQLITE_APICALL sqlite3rbu_destroy_vfs(const char *zName);

#if 0
}  /* end of the 'extern "C"' block */
#endif

#endif /* _SQLITE3RBU_H */

................................................................................


/*
** Open the database handle and attach the RBU database as "rbu". If an
** error occurs, leave an error code and message in the RBU handle.
*/
static void rbuOpenDatabase(sqlite3rbu *p){
  assert( p->rc==SQLITE_OK );
  assert( p->dbMain==0 && p->dbRbu==0 );
  assert( rbuIsVacuum(p) || p->zTarget!=0 );

  /* Open the RBU database */
  p->dbRbu = rbuOpenDbhandle(p, p->zRbu, 1);

  if( p->rc==SQLITE_OK && rbuIsVacuum(p) ){
    sqlite3_file_control(p->dbRbu, "main", SQLITE_FCNTL_RBUCNT, (void*)p);




  }

  /* If using separate RBU and state databases, attach the state database to
  ** the RBU db handle now.  */
  if( p->zState ){
    rbuMPrintfExec(p, p->dbRbu, "ATTACH %Q AS stat", p->zState);
    memcpy(p->zStateDb, "stat", 4);
................................................................................
  rbuFinalize(p, pSql);
  rbuFinalize(p, pInsert);
}

/*
** Step the RBU object.
*/
SQLITE_API int SQLITE_APICALL sqlite3rbu_step(sqlite3rbu *p){
  if( p ){
    switch( p->eStage ){
      case RBU_STAGE_OAL: {
        RbuObjIter *pIter = &p->objiter;

        /* If this is an RBU vacuum operation and the state table was empty
        ** when this handle was opened, create the target database schema. */
................................................................................
  const char *zTarget, 
  const char *zRbu,
  const char *zState
){
  sqlite3rbu *p;
  size_t nTarget = zTarget ? strlen(zTarget) : 0;
  size_t nRbu = strlen(zRbu);
  size_t nState = zState ? strlen(zState) : 0;
  size_t nByte = sizeof(sqlite3rbu) + nTarget+1 + nRbu+1+ nState+1;

  p = (sqlite3rbu*)sqlite3_malloc64(nByte);
  if( p ){
    RbuState *pState = 0;

    /* Create the custom VFS. */
    memset(p, 0, sizeof(sqlite3rbu));
................................................................................
        memcpy(p->zTarget, zTarget, nTarget+1);
        pCsr += nTarget+1;
      }
      p->zRbu = pCsr;
      memcpy(p->zRbu, zRbu, nRbu+1);
      pCsr += nRbu+1;
      if( zState ){
        p->zState = pCsr;
        memcpy(p->zState, zState, nState+1);
      }
      rbuOpenDatabase(p);
    }

    if( p->rc==SQLITE_OK ){
      pState = rbuLoadState(p);
      assert( pState || p->rc!=SQLITE_OK );
................................................................................
    }

    rbuFreeState(pState);
  }

  return p;
}















/*
** Open and return a new RBU handle. 
*/
SQLITE_API sqlite3rbu *SQLITE_APICALL sqlite3rbu_open(
  const char *zTarget, 
  const char *zRbu,
  const char *zState
){

  /* TODO: Check that zTarget and zRbu are non-NULL */
  return openRbuHandle(zTarget, zRbu, zState);
}

/*
** Open a handle to begin or resume an RBU VACUUM operation.
*/
SQLITE_API sqlite3rbu *SQLITE_APICALL sqlite3rbu_vacuum(
  const char *zTarget, 
  const char *zState
){

  /* TODO: Check that both arguments are non-NULL */
  return openRbuHandle(0, zTarget, zState);
}

/*
** Return the database handle used by pRbu.
*/
SQLITE_API sqlite3 *SQLITE_APICALL sqlite3rbu_db(sqlite3rbu *pRbu, int bRbu){
  sqlite3 *db = 0;
  if( pRbu ){
    db = (bRbu ? pRbu->dbRbu : pRbu->dbMain);
  }
  return db;
}

................................................................................
    }
  }
}

/*
** Close the RBU handle.
*/
SQLITE_API int SQLITE_APICALL sqlite3rbu_close(sqlite3rbu *p, char **pzErrmsg){
  int rc;
  if( p ){

    /* Commit the transaction to the *-oal file. */
    if( p->rc==SQLITE_OK && p->eStage==RBU_STAGE_OAL ){
      p->rc = sqlite3_exec(p->dbMain, "COMMIT", 0, 0, &p->zErrmsg);
    }
................................................................................
    rbuDeleteVfs(p);
    sqlite3_free(p->aBuf);
    sqlite3_free(p->aFrame);

    rbuEditErrmsg(p);
    rc = p->rc;
    *pzErrmsg = p->zErrmsg;

    sqlite3_free(p);
  }else{
    rc = SQLITE_NOMEM;
    *pzErrmsg = 0;
  }
  return rc;
}

/*
** Return the total number of key-value operations (inserts, deletes or 
** updates) that have been performed on the target database since the
** current RBU update was started.
*/
SQLITE_API sqlite3_int64 SQLITE_APICALL sqlite3rbu_progress(sqlite3rbu *pRbu){
  return pRbu->nProgress;
}

/*
** Return permyriadage progress indications for the two main stages of
** an RBU update.
*/
SQLITE_API void SQLITE_APICALL sqlite3rbu_bp_progress(sqlite3rbu *p, int *pnOne, int *pnTwo){
  const int MAX_PROGRESS = 10000;
  switch( p->eStage ){
    case RBU_STAGE_OAL:
      if( p->nPhaseOneStep>0 ){
        *pnOne = (int)(MAX_PROGRESS * (i64)p->nProgress/(i64)p->nPhaseOneStep);
      }else{
        *pnOne = -1;
................................................................................
      assert( 0 );
  }
}

/*
** Return the current state of the RBU vacuum or update operation.
*/
SQLITE_API int SQLITE_APICALL sqlite3rbu_state(sqlite3rbu *p){
  int aRes[] = {
    0, SQLITE_RBU_STATE_OAL, SQLITE_RBU_STATE_MOVE,
    0, SQLITE_RBU_STATE_CHECKPOINT, SQLITE_RBU_STATE_DONE
  };

  assert( RBU_STAGE_OAL==1 );
  assert( RBU_STAGE_MOVE==2 );
................................................................................
         || p->eStage==RBU_STAGE_CKPT
         || p->eStage==RBU_STAGE_DONE
    );
    return aRes[p->eStage];
  }
}

SQLITE_API int SQLITE_APICALL sqlite3rbu_savestate(sqlite3rbu *p){
  int rc = p->rc;
  if( rc==SQLITE_DONE ) return SQLITE_OK;

  assert( p->eStage>=RBU_STAGE_OAL && p->eStage<=RBU_STAGE_DONE );
  if( p->eStage==RBU_STAGE_OAL ){
    assert( rc!=SQLITE_DONE );
    if( rc==SQLITE_OK ) rc = sqlite3_exec(p->dbMain, "COMMIT", 0, 0, 0);
................................................................................
  return 0;
}

/*
** Deregister and destroy an RBU vfs created by an earlier call to
** sqlite3rbu_create_vfs().
*/
SQLITE_API void SQLITE_APICALL sqlite3rbu_destroy_vfs(const char *zName){
  sqlite3_vfs *pVfs = sqlite3_vfs_find(zName);
  if( pVfs && pVfs->xOpen==rbuVfsOpen ){
    sqlite3_mutex_free(((rbu_vfs*)pVfs)->mutex);
    sqlite3_vfs_unregister(pVfs);
    sqlite3_free(pVfs);
  }
}

/*
** Create an RBU VFS named zName that accesses the underlying file-system
** via existing VFS zParent. The new object is registered as a non-default
** VFS with SQLite before returning.
*/
SQLITE_API int SQLITE_APICALL sqlite3rbu_create_vfs(const char *zName, const char *zParent){

  /* Template for VFS */
  static sqlite3_vfs vfs_template = {
    1,                            /* iVersion */
    0,                            /* szOsFile */
    0,                            /* mxPathname */
    0,                            /* pNext */
................................................................................
  pCsr->pStmt = 0;
  zMaster = pCsr->iDb==1 ? "sqlite_temp_master" : "sqlite_master";
  zSql = sqlite3_mprintf(
      "SELECT 'sqlite_master' AS name, 1 AS rootpage, 'table' AS type"
      "  UNION ALL  "
      "SELECT name, rootpage, type"
      "  FROM \"%w\".%s WHERE rootpage!=0"
      "  ORDER BY name", pTab->db->aDb[pCsr->iDb].zName, zMaster);
  if( zSql==0 ){
    return SQLITE_NOMEM_BKPT;
  }else{
    rc = sqlite3_prepare_v2(pTab->db, zSql, -1, &pCsr->pStmt, 0);
    sqlite3_free(zSql);
  }

................................................................................
      break;
    case 9:            /* pgsize */
      sqlite3_result_int(ctx, pCsr->szPage);
      break;
    default: {          /* schema */
      sqlite3 *db = sqlite3_context_db_handle(ctx);
      int iDb = pCsr->iDb;
      sqlite3_result_text(ctx, db->aDb[iDb].zName, -1, SQLITE_STATIC);
      break;
    }
  }
  return SQLITE_OK;
}

static int statRowid(sqlite3_vtab_cursor *pCursor, sqlite_int64 *pRowid){
................................................................................
      sqlite3_free(zStmt);
    }
  }

  return rc;
}

SQLITE_API int SQLITE_APICALL sqlite3session_diff(
  sqlite3_session *pSession,
  const char *zFrom,
  const char *zTbl,
  char **pzErrMsg
){
  const char *zDb = pSession->zDb;
  int rc = pSession->rc;
................................................................................
  return rc;
}

/*
** Create a session object. This session object will record changes to
** database zDb attached to connection db.
*/
SQLITE_API int SQLITE_APICALL sqlite3session_create(
  sqlite3 *db,                    /* Database handle */
  const char *zDb,                /* Name of db (e.g. "main") */
  sqlite3_session **ppSession     /* OUT: New session object */
){
  sqlite3_session *pNew;          /* Newly allocated session object */
  sqlite3_session *pOld;          /* Session object already attached to db */
  int nDb = sqlite3Strlen30(zDb); /* Length of zDb in bytes */
................................................................................
    sqlite3_free(pTab);
  }
}

/*
** Delete a session object previously allocated using sqlite3session_create().
*/
SQLITE_API void SQLITE_APICALL sqlite3session_delete(sqlite3_session *pSession){
  sqlite3 *db = pSession->db;
  sqlite3_session *pHead;
  sqlite3_session **pp;

  /* Unlink the session from the linked list of sessions attached to the
  ** database handle. Hold the db mutex while doing so.  */
  sqlite3_mutex_enter(sqlite3_db_mutex(db));
................................................................................
  /* Free the session object itself. */
  sqlite3_free(pSession);
}

/*
** Set a table filter on a Session Object.
*/
SQLITE_API void SQLITE_APICALL sqlite3session_table_filter(
  sqlite3_session *pSession, 
  int(*xFilter)(void*, const char*),
  void *pCtx                      /* First argument passed to xFilter */
){
  pSession->bAutoAttach = 1;
  pSession->pFilterCtx = pCtx;
  pSession->xTableFilter = xFilter;
................................................................................
** Attach a table to a session. All subsequent changes made to the table
** while the session object is enabled will be recorded.
**
** Only tables that have a PRIMARY KEY defined may be attached. It does
** not matter if the PRIMARY KEY is an "INTEGER PRIMARY KEY" (rowid alias)
** or not.
*/
SQLITE_API int SQLITE_APICALL sqlite3session_attach(
  sqlite3_session *pSession,      /* Session object */
  const char *zName               /* Table name */
){
  int rc = SQLITE_OK;
  sqlite3_mutex_enter(sqlite3_db_mutex(pSession->db));

  if( !zName ){
................................................................................
/*
** Obtain a changeset object containing all changes recorded by the 
** session object passed as the first argument.
**
** It is the responsibility of the caller to eventually free the buffer 
** using sqlite3_free().
*/
SQLITE_API int SQLITE_APICALL sqlite3session_changeset(
  sqlite3_session *pSession,      /* Session object */
  int *pnChangeset,               /* OUT: Size of buffer at *ppChangeset */
  void **ppChangeset              /* OUT: Buffer containing changeset */
){
  return sessionGenerateChangeset(pSession, 0, 0, 0, pnChangeset, ppChangeset);
}

/*
** Streaming version of sqlite3session_changeset().
*/
SQLITE_API int SQLITE_APICALL sqlite3session_changeset_strm(
  sqlite3_session *pSession,
  int (*xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
){
  return sessionGenerateChangeset(pSession, 0, xOutput, pOut, 0, 0);
}

/*
** Streaming version of sqlite3session_patchset().
*/
SQLITE_API int SQLITE_APICALL sqlite3session_patchset_strm(
  sqlite3_session *pSession,
  int (*xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
){
  return sessionGenerateChangeset(pSession, 1, xOutput, pOut, 0, 0);
}

................................................................................
/*
** Obtain a patchset object containing all changes recorded by the 
** session object passed as the first argument.
**
** It is the responsibility of the caller to eventually free the buffer 
** using sqlite3_free().
*/
SQLITE_API int SQLITE_APICALL sqlite3session_patchset(
  sqlite3_session *pSession,      /* Session object */
  int *pnPatchset,                /* OUT: Size of buffer at *ppChangeset */
  void **ppPatchset               /* OUT: Buffer containing changeset */
){
  return sessionGenerateChangeset(pSession, 1, 0, 0, pnPatchset, ppPatchset);
}

/*
** Enable or disable the session object passed as the first argument.
*/
SQLITE_API int SQLITE_APICALL sqlite3session_enable(sqlite3_session *pSession, int bEnable){
  int ret;
  sqlite3_mutex_enter(sqlite3_db_mutex(pSession->db));
  if( bEnable>=0 ){
    pSession->bEnable = bEnable;
  }
  ret = pSession->bEnable;
  sqlite3_mutex_leave(sqlite3_db_mutex(pSession->db));
  return ret;
}

/*
** Enable or disable the session object passed as the first argument.
*/
SQLITE_API int SQLITE_APICALL sqlite3session_indirect(sqlite3_session *pSession, int bIndirect){
  int ret;
  sqlite3_mutex_enter(sqlite3_db_mutex(pSession->db));
  if( bIndirect>=0 ){
    pSession->bIndirect = bIndirect;
  }
  ret = pSession->bIndirect;
  sqlite3_mutex_leave(sqlite3_db_mutex(pSession->db));
................................................................................
  return ret;
}

/*
** Return true if there have been no changes to monitored tables recorded
** by the session object passed as the only argument.
*/
SQLITE_API int SQLITE_APICALL sqlite3session_isempty(sqlite3_session *pSession){
  int ret = 0;
  SessionTable *pTab;

  sqlite3_mutex_enter(sqlite3_db_mutex(pSession->db));
  for(pTab=pSession->pTable; pTab && ret==0; pTab=pTab->pNext){
    ret = (pTab->nEntry>0);
  }
................................................................................
  *pp = pRet;
  return SQLITE_OK;
}

/*
** Create an iterator used to iterate through the contents of a changeset.
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_start(
  sqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
  int nChangeset,                 /* Size of buffer pChangeset in bytes */
  void *pChangeset                /* Pointer to buffer containing changeset */
){
  return sessionChangesetStart(pp, 0, 0, nChangeset, pChangeset);
}

/*
** Streaming version of sqlite3changeset_start().
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_start_strm(
  sqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
  int (*xInput)(void *pIn, void *pData, int *pnData),
  void *pIn
){
  return sessionChangesetStart(pp, xInput, pIn, 0, 0);
}

................................................................................
** Advance an iterator created by sqlite3changeset_start() to the next
** change in the changeset. This function may return SQLITE_ROW, SQLITE_DONE
** or SQLITE_CORRUPT.
**
** This function may not be called on iterators passed to a conflict handler
** callback by changeset_apply().
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_next(sqlite3_changeset_iter *p){
  return sessionChangesetNext(p, 0, 0);
}

/*
** The following function extracts information on the current change
** from a changeset iterator. It may only be called after changeset_next()
** has returned SQLITE_ROW.
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_op(
  sqlite3_changeset_iter *pIter,  /* Iterator handle */
  const char **pzTab,             /* OUT: Pointer to table name */
  int *pnCol,                     /* OUT: Number of columns in table */
  int *pOp,                       /* OUT: SQLITE_INSERT, DELETE or UPDATE */
  int *pbIndirect                 /* OUT: True if change is indirect */
){
  *pOp = pIter->op;
................................................................................

/*
** Return information regarding the PRIMARY KEY and number of columns in
** the database table affected by the change that pIter currently points
** to. This function may only be called after changeset_next() returns
** SQLITE_ROW.
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_pk(
  sqlite3_changeset_iter *pIter,  /* Iterator object */
  unsigned char **pabPK,          /* OUT: Array of boolean - true for PK cols */
  int *pnCol                      /* OUT: Number of entries in output array */
){
  *pabPK = pIter->abPK;
  if( pnCol ) *pnCol = pIter->nCol;
  return SQLITE_OK;
................................................................................
** iVal'th value in the old.* record. Or, if that particular value is not
** included in the record (because the change is an UPDATE and the field
** was not modified and is not a PK column), set *ppValue to NULL.
**
** If value iVal is out-of-range, SQLITE_RANGE is returned and *ppValue is
** not modified. Otherwise, SQLITE_OK.
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_old(
  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
  int iVal,                       /* Index of old.* value to retrieve */
  sqlite3_value **ppValue         /* OUT: Old value (or NULL pointer) */
){
  if( pIter->op!=SQLITE_UPDATE && pIter->op!=SQLITE_DELETE ){
    return SQLITE_MISUSE;
  }
................................................................................
** iVal'th value in the new.* record. Or, if that particular value is not
** included in the record (because the change is an UPDATE and the field
** was not modified), set *ppValue to NULL.
**
** If value iVal is out-of-range, SQLITE_RANGE is returned and *ppValue is
** not modified. Otherwise, SQLITE_OK.
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_new(
  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
  int iVal,                       /* Index of new.* value to retrieve */
  sqlite3_value **ppValue         /* OUT: New value (or NULL pointer) */
){
  if( pIter->op!=SQLITE_UPDATE && pIter->op!=SQLITE_INSERT ){
    return SQLITE_MISUSE;
  }
................................................................................
**
** If successful, *ppValue is set to point to an sqlite3_value structure
** containing the iVal'th value of the conflicting record.
**
** If value iVal is out-of-range or some other error occurs, an SQLite error
** code is returned. Otherwise, SQLITE_OK.
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_conflict(
  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
  int iVal,                       /* Index of conflict record value to fetch */
  sqlite3_value **ppValue         /* OUT: Value from conflicting row */
){
  if( !pIter->pConflict ){
    return SQLITE_MISUSE;
  }
................................................................................
** This function may only be called with an iterator passed to an
** SQLITE_CHANGESET_FOREIGN_KEY conflict handler callback. In this case
** it sets the output variable to the total number of known foreign key
** violations in the destination database and returns SQLITE_OK.
**
** In all other cases this function returns SQLITE_MISUSE.
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_fk_conflicts(
  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
  int *pnOut                      /* OUT: Number of FK violations */
){
  if( pIter->pConflict || pIter->apValue ){
    return SQLITE_MISUSE;
  }
  *pnOut = pIter->nCol;
................................................................................

/*
** Finalize an iterator allocated with sqlite3changeset_start().
**
** This function may not be called on iterators passed to a conflict handler
** callback by changeset_apply().
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_finalize(sqlite3_changeset_iter *p){
  int rc = SQLITE_OK;
  if( p ){
    int i;                        /* Used to iterate through p->apValue[] */
    rc = p->rc;
    if( p->apValue ){
      for(i=0; i<p->nCol*2; i++) sqlite3ValueFree(p->apValue[i]);
    }
................................................................................
  return rc;
}


/*
** Invert a changeset object.
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_invert(
  int nChangeset,                 /* Number of bytes in input */
  const void *pChangeset,         /* Input changeset */
  int *pnInverted,                /* OUT: Number of bytes in output changeset */
  void **ppInverted               /* OUT: Inverse of pChangeset */
){
  SessionInput sInput;

................................................................................

  return sessionChangesetInvert(&sInput, 0, 0, pnInverted, ppInverted);
}

/*
** Streaming version of sqlite3changeset_invert().
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_invert_strm(
  int (*xInput)(void *pIn, void *pData, int *pnData),
  void *pIn,
  int (*xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
){
  SessionInput sInput;
  int rc;
................................................................................
}

/*
** Apply the changeset passed via pChangeset/nChangeset to the main database
** attached to handle "db". Invoke the supplied conflict handler callback
** to resolve any conflicts encountered while applying the change.
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_apply(
  sqlite3 *db,                    /* Apply change to "main" db of this handle */
  int nChangeset,                 /* Size of changeset in bytes */
  void *pChangeset,               /* Changeset blob */
  int(*xFilter)(
    void *pCtx,                   /* Copy of sixth arg to _apply() */
    const char *zTab              /* Table name */
  ),
................................................................................
}

/*
** Apply the changeset passed via xInput/pIn to the main database
** attached to handle "db". Invoke the supplied conflict handler callback
** to resolve any conflicts encountered while applying the change.
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_apply_strm(
  sqlite3 *db,                    /* Apply change to "main" db of this handle */
  int (*xInput)(void *pIn, void *pData, int *pnData), /* Input function */
  void *pIn,                                          /* First arg for xInput */
  int(*xFilter)(
    void *pCtx,                   /* Copy of sixth arg to _apply() */
    const char *zTab              /* Table name */
  ),
................................................................................

  return rc;
}

/*
** Allocate a new, empty, sqlite3_changegroup.
*/
SQLITE_API int SQLITE_APICALL sqlite3changegroup_new(sqlite3_changegroup **pp){
  int rc = SQLITE_OK;             /* Return code */
  sqlite3_changegroup *p;         /* New object */
  p = (sqlite3_changegroup*)sqlite3_malloc(sizeof(sqlite3_changegroup));
  if( p==0 ){
    rc = SQLITE_NOMEM;
  }else{
    memset(p, 0, sizeof(sqlite3_changegroup));
................................................................................
  return rc;
}

/*
** Add the changeset currently stored in buffer pData, size nData bytes,
** to changeset-group p.
*/
SQLITE_API int SQLITE_APICALL sqlite3changegroup_add(sqlite3_changegroup *pGrp, int nData, void *pData){
  sqlite3_changeset_iter *pIter;  /* Iterator opened on pData/nData */
  int rc;                         /* Return code */

  rc = sqlite3changeset_start(&pIter, nData, pData);
  if( rc==SQLITE_OK ){
    rc = sessionChangesetToHash(pIter, pGrp);
  }
................................................................................
  return rc;
}

/*
** Obtain a buffer containing a changeset representing the concatenation
** of all changesets added to the group so far.
*/
SQLITE_API int SQLITE_APICALL sqlite3changegroup_output(
    sqlite3_changegroup *pGrp,
    int *pnData,
    void **ppData
){
  return sessionChangegroupOutput(pGrp, 0, 0, pnData, ppData);
}

/*
** Streaming versions of changegroup_add().
*/
SQLITE_API int SQLITE_APICALL sqlite3changegroup_add_strm(
  sqlite3_changegroup *pGrp,
  int (*xInput)(void *pIn, void *pData, int *pnData),
  void *pIn
){
  sqlite3_changeset_iter *pIter;  /* Iterator opened on pData/nData */
  int rc;                         /* Return code */

................................................................................
  sqlite3changeset_finalize(pIter);
  return rc;
}

/*
** Streaming versions of changegroup_output().
*/
SQLITE_API int SQLITE_APICALL sqlite3changegroup_output_strm(
  sqlite3_changegroup *pGrp,
  int (*xOutput)(void *pOut, const void *pData, int nData), 
  void *pOut
){
  return sessionChangegroupOutput(pGrp, xOutput, pOut, 0, 0);
}

/*
** Delete a changegroup object.
*/
SQLITE_API void SQLITE_APICALL sqlite3changegroup_delete(sqlite3_changegroup *pGrp){
  if( pGrp ){
    sessionDeleteTable(pGrp->pList);
    sqlite3_free(pGrp);
  }
}

/* 
** Combine two changesets together.
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_concat(
  int nLeft,                      /* Number of bytes in lhs input */
  void *pLeft,                    /* Lhs input changeset */
  int nRight                      /* Number of bytes in rhs input */,
  void *pRight,                   /* Rhs input changeset */
  int *pnOut,                     /* OUT: Number of bytes in output changeset */
  void **ppOut                    /* OUT: changeset (left <concat> right) */
){
................................................................................

  return rc;
}

/*
** Streaming version of sqlite3changeset_concat().
*/
SQLITE_API int SQLITE_APICALL sqlite3changeset_concat_strm(
  int (*xInputA)(void *pIn, void *pData, int *pnData),
  void *pInA,
  int (*xInputB)(void *pIn, void *pData, int *pnData),
  void *pInB,
  int (*xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
){
................................................................................
}


#ifndef SQLITE_CORE
#ifdef _WIN32
__declspec(dllexport)
#endif
SQLITE_API int SQLITE_APICALL sqlite3_json_init(
  sqlite3 *db, 
  char **pzErrMsg, 
  const sqlite3_api_routines *pApi
){
  SQLITE_EXTENSION_INIT2(pApi);
  (void)pzErrMsg;  /* Unused parameter */
  return sqlite3Json1Init(db);
................................................................................
** Applications may also register custom tokenizer types. A tokenizer 
** is registered by providing fts5 with a populated instance of the 
** following structure. All structure methods must be defined, setting
** any member of the fts5_tokenizer struct to NULL leads to undefined
** behaviour. The structure methods are expected to function as follows:
**
** xCreate:
**   This function is used to allocate and inititalize a tokenizer instance.
**   A tokenizer instance is required to actually tokenize text.
**
**   The first argument passed to this function is a copy of the (void*)
**   pointer provided by the application when the fts5_tokenizer object
**   was registered with FTS5 (the third argument to xCreateTokenizer()). 
**   The second and third arguments are an array of nul-terminated strings
**   containing the tokenizer arguments, if any, specified following the
................................................................................
*************************************************************************/

#if 0
}  /* end of the 'extern "C"' block */
#endif

#endif /* _FTS5_H */


/*
** 2014 May 31
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
................................................................................

static void sqlite3Fts5ParsePhraseFree(Fts5ExprPhrase*);
static void sqlite3Fts5ParseNearsetFree(Fts5ExprNearset*);
static void sqlite3Fts5ParseNodeFree(Fts5ExprNode*);

static void sqlite3Fts5ParseSetDistance(Fts5Parse*, Fts5ExprNearset*, Fts5Token*);
static void sqlite3Fts5ParseSetColset(Fts5Parse*, Fts5ExprNearset*, Fts5Colset*);

static void sqlite3Fts5ParseFinished(Fts5Parse *pParse, Fts5ExprNode *p);
static void sqlite3Fts5ParseNear(Fts5Parse *pParse, Fts5Token*);

/*
** End of interface to code in fts5_expr.c.
**************************************************************************/

................................................................................
#define FTS5_OR                               1
#define FTS5_AND                              2
#define FTS5_NOT                              3
#define FTS5_TERM                             4
#define FTS5_COLON                            5
#define FTS5_LP                               6
#define FTS5_RP                               7

#define FTS5_LCP                              8
#define FTS5_RCP                              9
#define FTS5_STRING                          10
#define FTS5_COMMA                           11
#define FTS5_PLUS                            12
#define FTS5_STAR                            13

/*
** 2000-05-29
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
................................................................................
**    fts5YY_NO_ACTION       The fts5yy_action[] code for no-op
*/
#ifndef INTERFACE
# define INTERFACE 1
#endif
/************* Begin control #defines *****************************************/
#define fts5YYCODETYPE unsigned char
#define fts5YYNOCODE 27
#define fts5YYACTIONTYPE unsigned char
#define sqlite3Fts5ParserFTS5TOKENTYPE Fts5Token
typedef union {
  int fts5yyinit;
  sqlite3Fts5ParserFTS5TOKENTYPE fts5yy0;
  Fts5Colset* fts5yy3;
  Fts5ExprPhrase* fts5yy11;
  Fts5ExprNode* fts5yy18;
  int fts5yy20;
  Fts5ExprNearset* fts5yy26;

} fts5YYMINORTYPE;
#ifndef fts5YYSTACKDEPTH
#define fts5YYSTACKDEPTH 100
#endif
#define sqlite3Fts5ParserARG_SDECL Fts5Parse *pParse;
#define sqlite3Fts5ParserARG_PDECL ,Fts5Parse *pParse
#define sqlite3Fts5ParserARG_FETCH Fts5Parse *pParse = fts5yypParser->pParse
#define sqlite3Fts5ParserARG_STORE fts5yypParser->pParse = pParse
#define fts5YYNSTATE             26
#define fts5YYNRULE              24
#define fts5YY_MAX_SHIFT         25
#define fts5YY_MIN_SHIFTREDUCE   40
#define fts5YY_MAX_SHIFTREDUCE   63
#define fts5YY_MIN_REDUCE        64
#define fts5YY_MAX_REDUCE        87
#define fts5YY_ERROR_ACTION      88
#define fts5YY_ACCEPT_ACTION     89
#define fts5YY_NO_ACTION         90
/************* End control #defines *******************************************/

/* Define the fts5yytestcase() macro to be a no-op if is not already defined
** otherwise.
**
** Applications can choose to define fts5yytestcase() in the %include section
** to a macro that can assist in verifying code coverage.  For production
................................................................................
**                                      token onto the stack and goto state N.
**
**   N between fts5YY_MIN_SHIFTREDUCE       Shift to an arbitrary state then
**     and fts5YY_MAX_SHIFTREDUCE           reduce by rule N-fts5YY_MIN_SHIFTREDUCE.
**
**   N between fts5YY_MIN_REDUCE            Reduce by rule N-fts5YY_MIN_REDUCE
**     and fts5YY_MAX_REDUCE

**   N == fts5YY_ERROR_ACTION               A syntax error has occurred.
**
**   N == fts5YY_ACCEPT_ACTION              The parser accepts its input.
**
**   N == fts5YY_NO_ACTION                  No such action.  Denotes unused
**                                      slots in the fts5yy_action[] table.
**
** The action table is constructed as a single large table named fts5yy_action[].
** Given state S and lookahead X, the action is computed as
**
**      fts5yy_action[ fts5yy_shift_ofst[S] + X ]

**

** If the index value fts5yy_shift_ofst[S]+X is out of range or if the value
** fts5yy_lookahead[fts5yy_shift_ofst[S]+X] is not equal to X or if fts5yy_shift_ofst[S]
** is equal to fts5YY_SHIFT_USE_DFLT, it means that the action is not in the table
** and that fts5yy_default[S] should be used instead.  




**
** The formula above is for computing the action when the lookahead is
** a terminal symbol.  If the lookahead is a non-terminal (as occurs after
** a reduce action) then the fts5yy_reduce_ofst[] array is used in place of
** the fts5yy_shift_ofst[] array and fts5YY_REDUCE_USE_DFLT is used in place of
** fts5YY_SHIFT_USE_DFLT.
**
** The following are the tables generated in this section:
**
................................................................................
**  fts5yy_shift_ofst[]    For each state, the offset into fts5yy_action for
**                     shifting terminals.
**  fts5yy_reduce_ofst[]   For each state, the offset into fts5yy_action for
**                     shifting non-terminals after a reduce.
**  fts5yy_default[]       Default action for each state.
**
*********** Begin parsing tables **********************************************/
#define fts5YY_ACTTAB_COUNT (78)
static const fts5YYACTIONTYPE fts5yy_action[] = {
 /*     0 */    89,   15,   46,    5,   48,   24,   12,   19,   23,   14,
 /*    10 */    46,    5,   48,   24,   20,   21,   23,   43,   46,    5,
 /*    20 */    48,   24,    6,   18,   23,   17,   46,    5,   48,   24,
 /*    30 */    75,    7,   23,   25,   46,    5,   48,   24,   62,   47,
 /*    40 */    23,   48,   24,    7,   11,   23,    9,    3,    4,    2,
 /*    50 */    62,   50,   52,   44,   64,    3,    4,    2,   49,    4,
 /*    60 */     2,    1,   23,   11,   16,    9,   12,    2,   10,   61,
 /*    70 */    53,   59,   62,   60,   22,   13,   55,    8,

};
static const fts5YYCODETYPE fts5yy_lookahead[] = {
 /*     0 */    15,   16,   17,   18,   19,   20,   10,   11,   23,   16,
 /*    10 */    17,   18,   19,   20,   23,   24,   23,   16,   17,   18,
 /*    20 */    19,   20,   22,   23,   23,   16,   17,   18,   19,   20,
 /*    30 */     5,    6,   23,   16,   17,   18,   19,   20,   13,   17,
 /*    40 */    23,   19,   20,    6,    8,   23,   10,    1,    2,    3,


 /*    50 */    13,    9,   10,    7,    0,    1,    2,    3,   19,    2,
 /*    60 */     3,    6,   23,    8,   21,   10,   10,    3,   10,   25,
 /*    70 */    10,   10,   13,   25,   12,   10,    7,    5,


};
#define fts5YY_SHIFT_USE_DFLT (-5)
#define fts5YY_SHIFT_COUNT (25)
#define fts5YY_SHIFT_MIN   (-4)
#define fts5YY_SHIFT_MAX   (72)
static const signed char fts5yy_shift_ofst[] = {
 /*     0 */    55,   55,   55,   55,   55,   36,   -4,   56,   58,   25,
 /*    10 */    37,   60,   59,   59,   46,   54,   42,   57,   62,   61,
 /*    20 */    62,   69,   65,   62,   72,   64,


};
#define fts5YY_REDUCE_USE_DFLT (-16)
#define fts5YY_REDUCE_COUNT (13)
#define fts5YY_REDUCE_MIN   (-15)
#define fts5YY_REDUCE_MAX   (48)
static const signed char fts5yy_reduce_ofst[] = {
 /*     0 */   -15,   -7,    1,    9,   17,   22,   -9,    0,   39,   44,

 /*    10 */    44,   43,   44,   48,
};
static const fts5YYACTIONTYPE fts5yy_default[] = {
 /*     0 */    88,   88,   88,   88,   88,   69,   82,   88,   88,   87,
 /*    10 */    87,   88,   87,   87,   88,   88,   88,   66,   80,   88,
 /*    20 */    81,   88,   88,   78,   88,   65,


};
/********** End of lemon-generated parsing tables *****************************/

/* The next table maps tokens (terminal symbols) into fallback tokens.  
** If a construct like the following:
** 
**      %fallback ID X Y Z.
................................................................................

#ifndef NDEBUG
/* For tracing shifts, the names of all terminals and nonterminals
** are required.  The following table supplies these names */
static const char *const fts5yyTokenName[] = { 
  "$",             "OR",            "AND",           "NOT",         
  "TERM",          "COLON",         "LP",            "RP",          
  "LCP",           "RCP",           "STRING",        "COMMA",       
  "PLUS",          "STAR",          "error",         "input",       
  "expr",          "cnearset",      "exprlist",      "nearset",     
  "colset",        "colsetlist",    "nearphrases",   "phrase",      
  "neardist_opt",  "star_opt",    
};
#endif /* NDEBUG */

#ifndef NDEBUG
/* For tracing reduce actions, the names of all rules are required.
*/
static const char *const fts5yyRuleName[] = {
................................................................................
 /*   3 */ "expr ::= expr NOT expr",
 /*   4 */ "expr ::= LP expr RP",
 /*   5 */ "expr ::= exprlist",
 /*   6 */ "exprlist ::= cnearset",
 /*   7 */ "exprlist ::= exprlist cnearset",
 /*   8 */ "cnearset ::= nearset",
 /*   9 */ "cnearset ::= colset COLON nearset",

 /*  10 */ "colset ::= LCP colsetlist RCP",
 /*  11 */ "colset ::= STRING",

 /*  12 */ "colsetlist ::= colsetlist STRING",
 /*  13 */ "colsetlist ::= STRING",
 /*  14 */ "nearset ::= phrase",
 /*  15 */ "nearset ::= STRING LP nearphrases neardist_opt RP",
 /*  16 */ "nearphrases ::= phrase",
 /*  17 */ "nearphrases ::= nearphrases phrase",
 /*  18 */ "neardist_opt ::=",
 /*  19 */ "neardist_opt ::= COMMA STRING",
 /*  20 */ "phrase ::= phrase PLUS STRING star_opt",
 /*  21 */ "phrase ::= STRING star_opt",
 /*  22 */ "star_opt ::= STAR",
 /*  23 */ "star_opt ::=",
};
#endif /* NDEBUG */


#if fts5YYSTACKDEPTH<=0
/*
** Try to increase the size of the parser stack.  Return the number
................................................................................
    ** being destroyed before it is finished parsing.
    **
    ** Note: during a reduce, the only symbols destroyed are those
    ** which appear on the RHS of the rule, but which are *not* used
    ** inside the C code.
    */
/********* Begin destructor definitions ***************************************/
    case 15: /* input */
{
 (void)pParse; 
}
      break;
    case 16: /* expr */
    case 17: /* cnearset */
    case 18: /* exprlist */
{
 sqlite3Fts5ParseNodeFree((fts5yypminor->fts5yy18)); 
}
      break;
    case 19: /* nearset */
    case 22: /* nearphrases */
{
 sqlite3Fts5ParseNearsetFree((fts5yypminor->fts5yy26)); 
}
      break;
    case 20: /* colset */
    case 21: /* colsetlist */
{
 sqlite3_free((fts5yypminor->fts5yy3)); 
}
      break;
    case 23: /* phrase */
{
 sqlite3Fts5ParsePhraseFree((fts5yypminor->fts5yy11)); 
}
      break;
/********* End destructor definitions *****************************************/
    default:  break;   /* If no destructor action specified: do nothing */
  }
}

................................................................................
  int i;
  int stateno = pParser->fts5yytos->stateno;
 
  if( stateno>=fts5YY_MIN_REDUCE ) return stateno;
  assert( stateno <= fts5YY_SHIFT_COUNT );
  do{
    i = fts5yy_shift_ofst[stateno];
    if( i==fts5YY_SHIFT_USE_DFLT ) return fts5yy_default[stateno];
    assert( iLookAhead!=fts5YYNOCODE );
    i += iLookAhead;
    if( i<0 || i>=fts5YY_ACTTAB_COUNT || fts5yy_lookahead[i]!=iLookAhead ){
      if( iLookAhead>0 ){
#ifdef fts5YYFALLBACK
        fts5YYCODETYPE iFallback;            /* Fallback token */
        if( iLookAhead<sizeof(fts5yyFallback)/sizeof(fts5yyFallback[0])
               && (iFallback = fts5yyFallback[iLookAhead])!=0 ){
#ifndef NDEBUG
          if( fts5yyTraceFILE ){
            fprintf(fts5yyTraceFILE, "%sFALLBACK %s => %s\n",
               fts5yyTracePrompt, fts5yyTokenName[iLookAhead], fts5yyTokenName[iFallback]);
          }
#endif
          assert( fts5yyFallback[iFallback]==0 ); /* Fallback loop must terminate */
          iLookAhead = iFallback;
          continue;
        }
#endif
#ifdef fts5YYWILDCARD
        {
          int j = i - iLookAhead + fts5YYWILDCARD;
          if( 
#if fts5YY_SHIFT_MIN+fts5YYWILDCARD<0
            j>=0 &&
#endif
#if fts5YY_SHIFT_MAX+fts5YYWILDCARD>=fts5YY_ACTTAB_COUNT
            j<fts5YY_ACTTAB_COUNT &&
#endif
            fts5yy_lookahead[j]==fts5YYWILDCARD
          ){
#ifndef NDEBUG
            if( fts5yyTraceFILE ){
              fprintf(fts5yyTraceFILE, "%sWILDCARD %s => %s\n",
                 fts5yyTracePrompt, fts5yyTokenName[iLookAhead],
                 fts5yyTokenName[fts5YYWILDCARD]);
            }
#endif /* NDEBUG */
            return fts5yy_action[j];
          }
        }
#endif /* fts5YYWILDCARD */
      }
      return fts5yy_default[stateno];
    }else{
      return fts5yy_action[i];
    }
  }while(1);
}

................................................................................
/* The following table contains information about every rule that
** is used during the reduce.
*/
static const struct {
  fts5YYCODETYPE lhs;         /* Symbol on the left-hand side of the rule */
  unsigned char nrhs;     /* Number of right-hand side symbols in the rule */
} fts5yyRuleInfo[] = {
  { 15, 1 },
  { 16, 3 },
  { 16, 3 },
  { 16, 3 },
  { 16, 3 },
  { 16, 1 },
  { 18, 1 },
  { 18, 2 },
  { 17, 1 },
  { 17, 3 },

  { 20, 3 },
  { 20, 1 },
  { 21, 2 },

  { 21, 1 },
  { 19, 1 },
  { 19, 5 },
  { 22, 1 },
  { 22, 2 },
  { 24, 0 },
  { 24, 2 },
  { 23, 4 },
  { 23, 2 },
  { 25, 1 },
  { 25, 0 },
};

static void fts5yy_accept(fts5yyParser*);  /* Forward Declaration */

/*
** Perform a reduce action and the shift that must immediately
** follow the reduce.
................................................................................
  **     { ... }           // User supplied code
  **  #line <lineno> <thisfile>
  **     break;
  */
/********** Begin reduce actions **********************************************/
        fts5YYMINORTYPE fts5yylhsminor;
      case 0: /* input ::= expr */
{ sqlite3Fts5ParseFinished(pParse, fts5yymsp[0].minor.fts5yy18); }