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Overview
Comment:Upgrade this project to SQLite version 3.15.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1:4c92d6406ca2673d5225f24af1a1f525f439755c
User & Date: dan 2016-10-14 11:36:15
Context
2016-10-19
18:28
Upgrade gradle plugin to 2.14. check-in: a2f61e3931 user: dan tags: trunk
2016-10-14
11:36
Upgrade this project to SQLite version 3.15. check-in: 4c92d6406c user: dan tags: trunk
2016-10-10
17:53
Add a step-by-step walkthrough of using a pre-built aar file with Android Studio 2.1. check-in: 19e60f6dba user: dan tags: trunk
Changes
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Changes to sqlite3/src/main/jni/sqlite/sqlite3.c.

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7923
7924
....
7933
7934
7935
7936
7937
7938
7939
7940
7941
7942
7943
7944
7945
7946
7947
....
7969
7970
7971
7972
7973
7974
7975
7976
7977
7978
7979
7980
7981
7982
7983
....
8004
8005
8006
8007
8008
8009
8010
8011
8012
8013
8014
8015
8016
8017
8018
....
8026
8027
8028
8029
8030
8031
8032
8033
8034
8035
8036
8037
8038
8039
8040
....
8120
8121
8122
8123
8124
8125
8126
8127
8128
8129
8130
8131
8132
8133
8134
....
8156
8157
8158
8159
8160
8161
8162
8163
8164
8165
8166
8167
8168
8169
8170
....
8209
8210
8211
8212
8213
8214
8215
8216
8217
8218
8219
8220
8221
8222
8223
....
8314
8315
8316
8317
8318
8319
8320
8321
8322
8323
8324
8325
8326
8327
8328
....
8330
8331
8332
8333
8334
8335
8336
8337
8338
8339
8340
8341
8342
8343
8344
....
8362
8363
8364
8365
8366
8367
8368
8369
8370
8371
8372
8373
8374
8375
8376
....
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
8484
....
8520
8521
8522
8523
8524
8525
8526
8527
8528
8529
8530
8531
8532
8533
8534
....
8558
8559
8560
8561
8562
8563
8564
8565
8566
8567
8568
8569
8570
8571
8572
....
8575
8576
8577
8578
8579
8580
8581
8582
8583
8584
8585
8586
8587
8588
8589
....
8599
8600
8601
8602
8603
8604
8605
8606
8607
8608
8609
8610
8611
8612
8613
....
8657
8658
8659
8660
8661
8662
8663
8664
8665
8666
8667
8668
8669
8670
8671
....
8683
8684
8685
8686
8687
8688
8689
8690
8691
8692
8693
8694
8695
8696
8697
....
8895
8896
8897
8898
8899
8900
8901
8902
8903
8904
8905
8906
8907
8908
8909
....
9161
9162
9163
9164
9165
9166
9167
9168
9169
9170
9171
9172
9173
9174
9175
....
9248
9249
9250
9251
9252
9253
9254
9255
9256
9257
9258
9259
9260
9261
9262
....
9465
9466
9467
9468
9469
9470
9471
9472
9473
9474
9475
9476
9477
9478
9479
9480
9481
9482
9483
9484
....
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
9535
....
9582
9583
9584
9585
9586
9587
9588


9589
9590
9591
9592
9593
9594
9595
....
9610
9611
9612
9613
9614
9615
9616
9617
9618
9619
9620
9621
9622
9623
9624
.....
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
.....
13692
13693
13694
13695
13696
13697
13698
13699
13700
13701
13702
13703
13704
13705
13706
.....
14328
14329
14330
14331
14332
14333
14334

14335
14336
14337
14338
14339
14340
14341
.....
14892
14893
14894
14895
14896
14897
14898
14899

14900
14901

14902
14903
14904
14905
14906
14907
14908
.....
14930
14931
14932
14933
14934
14935
14936

14937
14938
14939
14940
14941
14942
14943
.....
15375
15376
15377
15378
15379
15380
15381
15382
15383
15384
15385
15386
15387
15388
15389
.....
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
15547
.....
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
15587
.....
15822
15823
15824
15825
15826
15827
15828

15829
15830
15831
15832
15833
15834
15835
.....
16107
16108
16109
16110
16111
16112
16113

16114
16115
16116
16117
16118
16119
16120
.....
16135
16136
16137
16138
16139
16140
16141
16142
16143
16144

16145
16146
16147
16148
16149
16150
16151
.....
16173
16174
16175
16176
16177
16178
16179
16180
16181
16182
16183
16184
16185
16186
16187
.....
16296
16297
16298
16299
16300
16301
16302
16303
16304
16305
16306
16307
16308
16309
16310
16311
.....
16473
16474
16475
16476
16477
16478
16479

16480
16481
16482
16483
16484
16485
16486
.....
16538
16539
16540
16541
16542
16543
16544
16545
16546
16547
16548
16549
16550
16551
16552
.....
16592
16593
16594
16595
16596
16597
16598






16599
16600
16601
16602

16603
16604
16605

16606
16607
16608
16609
16610
16611
16612
.....
16751
16752
16753
16754
16755
16756
16757
16758
16759
16760
16761
16762
16763
16764
16765
.....
16856
16857
16858
16859
16860
16861
16862





16863
16864
16865
16866
16867
16868
16869
.....
16941
16942
16943
16944
16945
16946
16947
16948
16949
16950
16951
16952
16953
16954
16955
16956
16957
16958
16959
16960
16961
16962
16963
16964
.....
17023
17024
17025
17026
17027
17028
17029
17030
17031
17032
17033
17034
17035
17036
17037
.....
17087
17088
17089
17090
17091
17092
17093
17094

17095
17096
17097
17098
17099
17100
17101
.....
17110
17111
17112
17113
17114
17115
17116
17117
17118
17119
17120
17121
17122
17123
17124
.....
17559
17560
17561
17562
17563
17564
17565
17566
17567
17568
17569
17570
17571
17572
17573
.....
17587
17588
17589
17590
17591
17592
17593
17594
17595
17596
17597
17598
17599
17600
17601
.....
17670
17671
17672
17673
17674
17675
17676
17677
17678
17679
17680
17681
17682
17683
17684
17685
17686
.....
17747
17748
17749
17750
17751
17752
17753






17754
17755
17756
17757
17758
17759
17760
.....
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
17811
.....
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
17963
.....
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
18058
.....
18297
18298
18299
18300
18301
18302
18303
18304
18305
18306
18307
18308
18309
18310
18311
.....
18322
18323
18324
18325
18326
18327
18328
18329
18330
18331
18332
18333
18334
18335
18336
.....
18339
18340
18341
18342
18343
18344
18345
18346
18347
18348
18349
18350
18351
18352
18353
.....
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
.....
44641
44642
44643
44644
44645
44646
44647
44648
44649
44650
44651
44652
44653
44654
44655
.....
52929
52930
52931
52932
52933
52934
52935
52936




52937
52938
52939
52940
52941
52942
52943
.....
52970
52971
52972
52973
52974
52975
52976














52977
52978
52979
52980
52981
52982
52983
.....
57081
57082
57083
57084
57085
57086
57087
57088
57089
57090
57091
57092
57093
57094
57095
.....
58218
58219
58220
58221
58222
58223
58224
58225
58226
58227
58228
58229
58230
58231
58232
.....
58895
58896
58897
58898
58899
58900
58901
58902
58903
58904
58905
58906
58907
58908
58909
.....
59737
59738
59739
59740
59741
59742
59743
59744


59745

59746
59747
59748
59749
59750
59751
59752
.....
64229
64230
64231
64232
64233
64234
64235
64236
64237
64238
64239
64240
64241
64242
64243
64244
.....
67930
67931
67932
67933
67934
67935
67936
67937
67938
67939
67940
67941
67942
67943
67944
67945
67946
67947
67948
67949
67950
67951
67952
67953
67954
67955
67956
67957
67958
67959
.....
67991
67992
67993
67994
67995
67996
67997
67998
67999
68000
68001
68002
68003
68004
68005
.....
68043
68044
68045
68046
68047
68048
68049
68050
68051
68052
68053
68054
68055
68056
68057
.....
68199
68200
68201
68202
68203
68204
68205
68206
68207
68208
68209
68210
68211
68212
68213
.....
68231
68232
68233
68234
68235
68236
68237
68238
68239
68240
68241
68242
68243
68244
68245
68246
68247
68248
68249
68250
68251
68252
68253


















68254
68255
68256
68257
68258
68259
68260
.....
68443
68444
68445
68446
68447
68448
68449
68450
68451
68452
68453
68454
68455
68456
68457
.....
68495
68496
68497
68498
68499
68500
68501
68502
68503
68504
68505
68506
68507
68508
68509
68510
68511
68512
68513
68514
68515
68516
68517
68518
68519
68520
68521
68522
68523
.....
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
.....
68863
68864
68865
68866
68867
68868
68869
68870
68871

68872
68873
68874
68875
68876
68877
68878
68879
68880
68881
68882
68883
68884
68885
68886
68887
68888
68889
68890
68891
68892
68893
68894
68895
.....
68941
68942
68943
68944
68945
68946
68947

68948
68949
68950
68951
68952
68953
68954
.....
69222
69223
69224
69225
69226
69227
69228
69229
69230
69231
69232
69233
69234
69235
69236
.....
69240
69241
69242
69243
69244
69245
69246
69247
69248
69249
69250
69251
69252
69253
69254
.....
69665
69666
69667
69668
69669
69670
69671
69672
69673
69674
69675
69676
69677
69678
69679
69680
69681
.....
69920
69921
69922
69923
69924
69925
69926
69927
69928
69929
69930
69931
69932
69933
69934
69935
69936
69937
.....
70047
70048
70049
70050
70051
70052
70053
70054
70055
70056
70057
70058
70059
70060
70061
.....
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
70195
.....
70197
70198
70199
70200
70201
70202
70203
70204
70205
70206
70207
70208
70209



70210
70211
70212
70213
70214





70215



70216
70217
70218
70219



70220
70221
70222
70223
70224
70225
70226
.....
70375
70376
70377
70378
70379
70380
70381
70382
70383

70384
70385
70386
70387
70388
70389
70390
.....
70538
70539
70540
70541
70542
70543
70544
70545
70546
70547
70548
70549
70550
70551
70552
70553
70554
.....
70728
70729
70730
70731
70732
70733
70734
70735
70736
70737
70738
70739
70740
70741
70742
.....
71119
71120
71121
71122
71123
71124
71125

71126
71127
71128
71129
71130
71131
71132
71133
71134
71135
71136
71137
71138
71139
71140
71141
.....
71250
71251
71252
71253
71254
71255
71256
71257
71258
71259
71260
71261
71262
71263
71264
.....
71448
71449
71450
71451
71452
71453
71454

71455
71456
71457
71458
71459
71460








71461
71462
71463
71464
71465
71466
71467
.....
71803
71804
71805
71806
71807
71808
71809















71810
71811
71812
71813
71814
71815
71816
.....
72015
72016
72017
72018
72019
72020
72021

72022
72023
72024
72025
72026
72027
72028
.....
72157
72158
72159
72160
72161
72162
72163
72164
72165
72166
72167
72168
72169
72170
72171
.....
72214
72215
72216
72217
72218
72219
72220
72221
72222
72223
72224
72225
72226
72227
72228
.....
72229
72230
72231
72232
72233
72234
72235
72236
72237
72238
72239
72240
72241
72242
72243
72244
.....
72249
72250
72251
72252
72253
72254
72255
72256
72257
72258
72259
72260
72261
72262
72263
72264
72265
72266
.....
72277
72278
72279
72280
72281
72282
72283
72284
72285
72286
72287
72288
72289
72290
72291
72292
72293
72294
72295
72296
72297
72298
72299
72300
72301
72302
72303
72304
72305
72306



72307
72308
72309
72310
72311









72312
72313
72314
72315
72316
72317
72318
72319
72320
.....
72375
72376
72377
72378
72379
72380
72381
72382
72383
72384
72385
72386
72387
72388
72389
72390
.....
72460
72461
72462
72463
72464
72465
72466
72467
72468
72469
72470
72471
72472
72473
72474
72475
72476
72477
72478
72479
72480
.....
72917
72918
72919
72920
72921
72922
72923
72924
72925
72926
72927
72928
72929
72930
72931
.....
73229
73230
73231
73232
73233
73234
73235
73236
73237
73238
73239
73240
73241
73242
73243
.....
73293
73294
73295
73296
73297
73298
73299
73300
73301
73302
73303
73304
73305
73306


73307
73308


73309
73310
73311
73312
73313
73314
73315
73316
73317
73318
73319
.....
74060
74061
74062
74063
74064
74065
74066












74067
74068
74069
74070
74071
74072
74073






















74074
74075
74076
74077
74078
74079
74080
74081
74082
74083
.....
74375
74376
74377
74378
74379
74380
74381

74382
74383
74384
74385
74386
74387
74388
74389
74390
74391
74392






74393
74394
74395
74396
74397
74398
74399
.....
74456
74457
74458
74459
74460
74461
74462
74463
74464
74465
74466
74467
74468
74469
74470
.....
74515
74516
74517
74518
74519
74520
74521

74522
74523
74524
74525
74526
74527
74528
.....
74965
74966
74967
74968
74969
74970
74971
74972
74973
74974
74975
74976
74977
74978
74979
.....
75034
75035
75036
75037
75038
75039
75040
75041
75042
75043
75044
75045
75046
75047
75048
.....
75061
75062
75063
75064
75065
75066
75067
75068
75069
75070
75071
75072
75073
75074
75075
.....
75082
75083
75084
75085
75086
75087
75088
75089
75090
75091
75092
75093
75094
75095
75096
.....
75106
75107
75108
75109
75110
75111
75112
75113
75114
75115
75116
75117
75118
75119
75120
75121
75122
75123
75124
75125
75126
75127
75128
75129
75130
75131
75132
75133
75134
75135
75136
75137
75138
75139
75140
75141
75142
75143
75144
75145
75146
75147
75148
75149
75150
75151
75152
75153
75154
75155
75156
75157
75158
75159
75160
75161
75162
75163
75164
75165
75166
75167
75168
75169
75170
.....
75196
75197
75198
75199
75200
75201
75202
75203
75204
75205
75206
75207
75208
75209
75210
.....
75219
75220
75221
75222
75223
75224
75225
75226
75227
75228
75229
75230
75231
75232
75233
.....
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
75314
75315
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
.....
75348
75349
75350
75351
75352
75353
75354
75355
75356
75357
75358
75359
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
75398
75399
75400
75401
75402
75403
75404
75405
75406
75407
75408
75409
75410
75411
75412
75413
75414
75415
75416
75417
75418
75419
75420
75421
75422
75423
75424
75425
75426
75427
75428
75429
.....
75439
75440
75441
75442
75443
75444
75445
75446
75447
75448
75449
75450
75451
75452
75453
.....
75587
75588
75589
75590
75591
75592
75593
75594
75595
75596
75597
75598
75599
75600
75601
.....
75638
75639
75640
75641
75642
75643
75644
75645
75646
75647
75648
75649
75650
75651
75652
.....
75653
75654
75655
75656
75657
75658
75659
75660
75661
75662
75663
75664
75665
75666
75667
.....
75729
75730
75731
75732
75733
75734
75735
75736
75737
75738
75739
75740
75741
75742
75743
.....
75744
75745
75746
75747
75748
75749
75750
75751
75752
75753
75754
75755
75756
75757
75758
.....
75765
75766
75767
75768
75769
75770
75771
75772
75773
75774
75775
75776
75777
75778
75779
.....
75820
75821
75822
75823
75824
75825
75826
75827
75828
75829
75830
75831
75832
75833
75834
75835
75836
75837
75838
75839
75840
75841
75842
75843
75844
75845
75846
75847
75848
75849
75850
75851
75852
.....
75892
75893
75894
75895
75896
75897
75898
75899

75900

75901
75902
75903
75904
75905
75906
75907
75908
75909
75910
75911
75912
75913
.....
75932
75933
75934
75935
75936
75937
75938


75939
75940
75941
75942
75943
75944
75945
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
75980
75981
75982
75983
75984
75985
75986
75987
75988
75989
75990
75991
75992
75993
75994
75995
75996
75997
75998
75999
76000
76001
76002
76003
76004
76005
76006
76007
76008
76009
76010
76011
.....
76061
76062
76063
76064
76065
76066
76067
76068
76069
76070
76071
76072
76073
76074
76075
76076
76077
76078
76079
76080
.....
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
76124
76125
76126
76127
76128
76129
76130
76131
76132
76133
76134
76135
76136
76137
76138
76139
76140
76141
76142
76143
76144
76145
76146
76147
76148
76149
76150
76151
76152
76153
76154
76155
.....
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
76292
76293
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
76319
76320
76321
76322
76323
.....
76326
76327
76328
76329
76330
76331
76332
76333
76334
76335
76336
76337
76338
76339
76340
76341
76342
76343
76344
76345
76346
76347
76348
76349
76350
.....
76367
76368
76369
76370
76371
76372
76373
76374
76375
76376
76377
76378
76379
76380
76381
76382
76383
76384
76385
76386
76387
76388
76389
76390
76391
.....
76396
76397
76398
76399
76400
76401
76402
76403
76404
76405
76406
76407
76408
76409
76410
76411
76412
76413
76414
76415
76416
76417
76418
76419
76420
76421
.....
76435
76436
76437
76438
76439
76440
76441
76442
76443
76444
76445
76446
76447
76448
76449
.....
76469
76470
76471
76472
76473
76474
76475
76476
76477
76478
76479
76480
76481
76482
76483
.....
76491
76492
76493
76494
76495
76496
76497
76498
76499
76500
76501
76502
76503
76504
76505
76506
76507
76508
76509
76510
76511
76512
76513
76514
76515
76516
76517
76518
76519
76520
76521
76522
76523
76524
76525
76526
76527
76528
76529
76530
76531
.....
76538
76539
76540
76541
76542
76543
76544
76545
76546
76547
76548
76549
76550
76551
76552
.....
76555
76556
76557
76558
76559
76560
76561
76562
76563
76564
76565
76566
76567
76568
76569
76570
76571
76572
76573
76574
76575
76576
76577
76578
76579
76580
76581
76582
76583
.....
76611
76612
76613
76614
76615
76616
76617
76618
76619
76620
76621
76622
76623
76624
76625
.....
76666
76667
76668
76669
76670
76671
76672
76673
76674
76675
76676
76677
76678
76679
76680
.....
76684
76685
76686
76687
76688
76689
76690
76691
76692
76693
76694
76695
76696
76697
76698
76699
76700
76701
76702
76703
76704
76705
76706
76707
76708
76709
.....
76715
76716
76717
76718
76719
76720
76721
76722
76723
76724
76725
76726
76727
76728
76729
.....
76769
76770
76771
76772
76773
76774
76775
76776
76777
76778
76779
76780
76781
76782
76783
.....
76828
76829
76830
76831
76832
76833
76834
76835
76836
76837
76838
76839
76840
76841
76842
.....
77355
77356
77357
77358
77359
77360
77361
77362
77363
77364
77365
77366
77367
77368
77369
.....
77697
77698
77699
77700
77701
77702
77703
77704
77705
77706
77707
77708
77709
77710
77711
.....
78029
78030
78031
78032
78033
78034
78035
78036
78037
78038
78039
78040
78041
78042
78043
.....
78242
78243
78244
78245
78246
78247
78248
78249
78250
78251
78252
78253
78254
78255
78256
.....
78260
78261
78262
78263
78264
78265
78266

78267
78268
78269
78270
78271

78272
78273
78274
78275
78276
78277
78278
78279
78280
78281
78282
78283
78284
78285
.....
78324
78325
78326
78327
78328
78329
78330
78331
78332
78333
78334
78335
78336
78337
78338
.....
78434
78435
78436
78437
78438
78439
78440
78441
78442
78443
78444
78445
78446
78447
78448
.....
78567
78568
78569
78570
78571
78572
78573
78574
78575
78576
78577
78578
78579
78580
78581
78582
78583
78584
78585
78586
78587
78588
78589
78590
78591
78592
78593
78594
78595
78596
78597
78598
78599
78600
78601
78602
78603
78604
78605
78606
78607
78608
78609
78610
78611
.....
78830
78831
78832
78833
78834
78835
78836
78837
78838
78839
78840
78841
78842
78843
78844
78845
78846
78847
78848
78849
78850
78851
78852
78853
78854
78855
78856
78857
78858
78859
78860
78861
78862
78863
78864
78865
78866
.....
78912
78913
78914
78915
78916
78917
78918
78919
78920
78921
78922
78923
78924
78925
78926
.....
79004
79005
79006
79007
79008
79009
79010














































79011
79012
79013
79014
79015

79016
79017
79018
79019
79020
79021
79022
79023
79024
79025
.....
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
79075
79076
79077
79078
79079
79080
79081
79082
79083
79084
79085
79086
79087
79088
79089
79090
79091
79092
79093
79094
79095
79096
79097
79098
79099
79100
79101
79102
79103
79104
79105
79106
.....
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
.....
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
79189
79190
79191
79192
79193
79194
79195
79196
79197
79198
79199
79200
79201


















79202
79203
79204
79205
79206
79207
79208
79209
79210
79211
79212
79213


















79214
79215
79216
79217
79218
79219
79220
.....
79403
79404
79405
79406
79407
79408
79409
79410
79411
79412
79413
79414
79415
79416
79417
79418
79419
79420

79421
79422

79423
79424
79425

79426
79427
79428
79429
79430
79431
79432
.....
79457
79458
79459
79460
79461
79462
79463
79464
79465
79466
79467
79468
79469
79470
79471
.....
79485
79486
79487
79488
79489
79490
79491
79492
79493
79494
79495
79496
79497
79498
79499
.....
80251
80252
80253
80254
80255
80256
80257

80258
80259
80260
80261
80262
80263
80264
80265
80266
80267
80268
80269
80270
.....
80283
80284
80285
80286
80287
80288
80289
80290
80291
80292
80293
80294
80295
80296
80297
80298
80299
80300
.....
80947
80948
80949
80950
80951
80952
80953
80954
80955
80956
80957
80958
80959
80960
80961
.....
80995
80996
80997
80998
80999
81000
81001
81002
81003
81004
81005
81006
81007
81008
81009
.....
81089
81090
81091
81092
81093
81094
81095

81096
81097
81098
81099
81100
81101
81102

81103
81104
81105
81106
81107
81108
81109
81110
81111
81112
81113
81114
81115
81116
81117
.....
81428
81429
81430
81431
81432
81433
81434
81435
81436
81437
81438
81439
81440
81441
81442
.....
81470
81471
81472
81473
81474
81475
81476
81477
81478
81479
81480
81481
81482
81483
81484
.....
81544
81545
81546
81547
81548
81549
81550
81551
81552
81553
81554
81555
81556
81557
81558
.....
81587
81588
81589
81590
81591
81592
81593
81594
81595
81596
81597
81598
81599
81600
81601
.....
81659
81660
81661
81662
81663
81664
81665
81666
81667
81668
81669
81670
81671
81672
81673
.....
82135
82136
82137
82138
82139
82140
82141
82142
82143
82144
82145
82146
82147
82148
82149
82150
82151
.....
82186
82187
82188
82189
82190
82191
82192
82193
82194
82195
82196
82197
82198
82199
82200
.....
82557
82558
82559
82560
82561
82562
82563
82564
82565
82566
82567
82568
82569
82570
82571
.....
82693
82694
82695
82696
82697
82698
82699
82700
82701
82702
82703
82704
82705
82706
82707
.....
82713
82714
82715
82716
82717
82718
82719
82720
82721
82722
82723
82724
82725
82726
82727
.....
82862
82863
82864
82865
82866
82867
82868
82869
82870
82871
82872
82873
82874
82875
82876
82877
.....
82883
82884
82885
82886
82887
82888
82889
82890
82891
82892
82893
82894
82895
82896
82897
82898
.....
82918
82919
82920
82921
82922
82923
82924
82925
82926
82927
82928
82929
82930
82931
82932
82933
82934
82935
82936
82937
82938
.....
83386
83387
83388
83389
83390
83391
83392
83393
83394
83395
83396
83397
83398
83399
83400
83401
83402
83403
83404
83405
83406
83407
83408
.....
83892
83893
83894
83895
83896
83897
83898
83899
83900
83901
83902
83903
83904
83905
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
.....
83938
83939
83940
83941
83942
83943
83944
83945
83946
83947
83948
83949
83950
83951
83952
83953
83954
83955
83956
83957
83958
83959








83960
83961
83962
83963
83964
83965
83966
83967
83968
.....
84207
84208
84209
84210
84211
84212
84213
84214
84215
84216
84217
84218
84219
84220
84221
.....
84277
84278
84279
84280
84281
84282
84283
84284
84285
84286
84287
84288
84289
84290
84291
.....
84448
84449
84450
84451
84452
84453
84454
84455
84456
84457
84458
84459
84460
84461
84462
.....
84541
84542
84543
84544
84545
84546
84547
84548
84549
84550
84551
84552
84553
84554
84555
84556
84557
84558
84559
84560
84561
84562
84563
84564
84565
84566
84567
84568
84569
84570
84571
84572
.....
84573
84574
84575
84576
84577
84578
84579
84580
84581
84582
84583
84584
84585
84586
84587
.....
87829
87830
87831
87832
87833
87834
87835
87836
87837


87838
87839
87840
87841
87842

87843
87844
87845
87846
87847
87848
87849
87850
87851
87852
87853
.....
88173
88174
88175
88176
88177
88178
88179
88180
88181
88182
88183
88184
88185
88186
88187
88188
.....
88575
88576
88577
88578
88579
88580
88581
88582
88583
88584
88585
88586
88587
88588
88589
.....
88598
88599
88600
88601
88602
88603
88604
88605
88606
88607
88608
88609
88610
88611
88612
88613
88614
88615
88616
88617
88618
88619
.....
88642
88643
88644
88645
88646
88647
88648

88649
88650
88651
88652
88653
88654
88655
88656
88657

88658
88659
88660
88661
88662
88663
88664
88665
88666
88667
88668
88669
88670

88671
88672
88673
88674
88675
88676
88677
.....
88727
88728
88729
88730
88731
88732
88733



























88734
88735
88736
88737
88738
88739
88740
.....
89469
89470
89471
89472
89473
89474
89475












89476
89477
89478
89479
89480
89481
89482
.....
89495
89496
89497
89498
89499
89500
89501

89502
89503
89504
89505
89506
89507
89508
89509
89510
89511
89512
89513
89514
89515
89516
89517
89518
89519
89520
89521
89522
89523
.....
89675
89676
89677
89678
89679
89680
89681
89682
89683
89684
89685
89686
89687
89688
89689
.....
89764
89765
89766
89767
89768
89769
89770








































































































































































































































































89771
89772
89773
89774
89775
89776
89777
.....
89900
89901
89902
89903
89904
89905
89906
89907
89908
89909
89910
89911
89912
89913
89914
.....
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
90186
90187
90188
90189
90190
90191
90192
90193
90194
90195
90196
90197
90198
90199
90200
90201
90202

90203






90204
90205
90206

90207
90208
90209
90210
90211
90212
90213
90214

90215
90216
90217
90218
90219
90220
90221
.....
90384
90385
90386
90387
90388
90389
90390
90391
90392
90393
90394
90395
90396
90397
90398
90399
90400
90401
90402
90403
90404
90405
90406
90407
90408
90409
90410
90411
90412
90413



90414

90415
90416
90417
90418
90419
90420
90421
.....
90647
90648
90649
90650
90651
90652
90653






















































90654
90655
90656
90657
90658
90659
90660
.....
91055
91056
91057
91058
91059
91060
91061
91062
91063

91064
91065
91066
91067
91068
91069
91070
.....
91079
91080
91081
91082
91083
91084
91085
91086


91087
91088
91089

91090
91091
91092
91093
91094
91095
91096
91097
91098
91099
91100
91101
91102

91103
91104
91105
91106
91107
91108
91109
.....
91111
91112
91113
91114
91115
91116
91117

91118
91119
91120
91121
91122
91123
91124
.....
91155
91156
91157
91158
91159
91160
91161
91162
91163
91164
91165
91166
91167
91168
91169
.....
91171
91172
91173
91174
91175
91176
91177
91178
91179
91180
91181
91182
91183
91184
91185
91186
91187
91188
91189
91190
91191
91192
.....
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
91265



















91266
91267




91268
91269
91270
91271











91272
91273




































91274
91275
91276
91277
91278
91279
91280
91281
91282

91283
91284
91285
91286

91287
91288

91289
91290
91291
91292
91293




91294
91295
91296
91297
91298
91299
91300
.....
91302
91303
91304
91305
91306
91307
91308
91309
91310
91311
91312
91313
91314
91315
91316
.....
91324
91325
91326
91327
91328
91329
91330






91331
91332
91333















































91334
91335
91336
91337
91338
91339
91340
.....
91353
91354
91355
91356
91357
91358
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
.....
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
91438

91439
91440
91441
91442
91443

91444
91445
91446
91447

91448
91449
91450
91451


91452
91453



91454
91455
91456
91457
91458
91459
91460
91461

91462
91463
91464
91465
91466

91467
91468
91469
91470
91471
91472
91473
.....
91515
91516
91517
91518
91519
91520
91521
91522
91523
91524




91525
91526




91527
91528
91529

91530
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
.....
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
91710


91711

91712
91713


91714
91715
91716
91717
91718
91719



91720
91721
91722
91723
91724
91725
91726
91727









91728


91729



91730
91731
91732
91733



91734
91735




91736
91737
91738



91739
91740
91741
91742
91743
91744
91745
.....
91795
91796
91797
91798
91799
91800
91801
91802
91803
91804

91805
91806
91807
91808
91809
91810
91811
91812
91813
91814
91815
91816
91817
91818
91819
91820
91821
91822
91823
91824
91825
91826
91827



91828
91829
91830
91831
91832
91833
91834
.....
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
91882
91883
91884
91885
91886
91887





91888
91889
91890
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
.....
91927
91928
91929
91930
91931
91932
91933
91934
91935
91936
91937
91938
91939
91940
91941
91942
91943
91944
91945


91946
91947
91948
91949
91950
91951
91952
91953
91954
91955
91956
91957
91958
91959
91960
91961
91962
91963
91964
91965
91966
.....
92030
92031
92032
92033
92034
92035
92036
92037
92038
92039
92040
92041
92042
92043
92044
92045
.....
92063
92064
92065
92066
92067
92068
92069
92070
92071
92072
92073
92074
92075
92076
92077
92078
92079


92080
92081

92082
92083
92084
92085
92086
92087
92088
.....
92106
92107
92108
92109
92110
92111
92112
92113
92114
92115
92116
92117
92118
92119
92120
92121
92122
92123


92124
92125
92126
92127
92128
92129
92130
































92131
92132
92133
92134
92135
92136
92137
.....
92142
92143
92144
92145
92146
92147
92148
92149
92150
92151
92152
92153
92154
92155
92156
92157
92158
.....
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
92268
92269




92270
92271
92272
92273
92274
92275
92276
92277
92278
92279
92280
92281
92282
92283
92284
92285
92286
92287
92288
92289
92290
92291
92292
92293
92294
92295
92296
92297
92298
92299
92300
92301
92302
92303
.....
92327
92328
92329
92330
92331
92332
92333

92334
92335
92336
92337

92338
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
.....
92375
92376
92377
92378
92379
92380
92381
92382
92383
92384
92385
92386
92387
92388
92389
92390
92391
92392

92393
92394
92395
92396
92397
92398
92399
.....
92434
92435
92436
92437
92438
92439
92440
92441
92442
92443
92444
92445
92446
92447
92448
92449
.....
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
.....
92546
92547
92548
92549
92550
92551
92552
92553
92554
92555
92556
92557
92558
92559
92560
92561
92562
92563
92564
92565
92566
92567
92568
92569
92570
92571
92572
92573
92574
92575
92576
92577
92578
92579
92580
92581
92582
92583
92584
92585
92586
92587
92588
.....
92633
92634
92635
92636
92637
92638
92639




92640
92641
92642
92643
92644
92645
92646
.....
92676
92677
92678
92679
92680
92681
92682
92683
92684

92685
92686
92687
92688
92689
92690
92691
.....
92711
92712
92713
92714
92715
92716
92717
92718
92719
92720
92721
92722
92723
92724
92725
.....
92956
92957
92958
92959
92960
92961
92962








92963
92964
92965
92966
92967
92968
92969
92970
92971
92972
92973
92974
92975
92976





92977
92978
92979
92980
92981
92982
92983
92984
92985
92986
92987
92988
92989
92990
92991

92992
92993
92994
92995
92996
92997
92998
92999
93000
93001
93002
93003
93004

93005
93006
93007
93008
93009
93010
93011
.....
93062
93063
93064
93065
93066
93067
93068

93069
93070
93071
93072
93073
93074
93075
.....
93094
93095
93096
93097
93098
93099
93100
93101
93102
93103
93104
93105
93106
93107
93108
93109
93110
93111
93112
93113
93114

93115
93116
93117
93118
93119
93120
93121
.....
93214
93215
93216
93217
93218
93219
93220

93221
93222
93223
93224
93225
93226
93227
.....
93244
93245
93246
93247
93248
93249
93250
93251
93252
93253
93254
93255
93256
93257
93258
.....
93260
93261
93262
93263
93264
93265
93266

93267
93268
93269
93270
93271
93272
93273
.....
93764
93765
93766
93767
93768
93769
93770
93771
93772
93773
93774
93775
93776
93777
93778
93779
93780
93781
93782
93783
93784
93785

93786
93787
93788
93789
93790
93791
93792
93793
93794
93795
93796
93797
93798




93799
93800
93801
93802
93803
93804
93805
.....
94247
94248
94249
94250
94251
94252
94253
94254
94255
94256
94257
94258
94259
94260
94261
.....
94445
94446
94447
94448
94449
94450
94451
94452
94453
94454
94455
94456
94457
94458
94459
.....
94855
94856
94857
94858
94859
94860
94861
94862
94863
94864
94865
94866
94867
94868
94869
94870
94871
94872
94873
94874
94875
94876
.....
94877
94878
94879
94880
94881
94882
94883
94884
94885
94886
94887
94888
94889
94890
94891
.....
95639
95640
95641
95642
95643
95644
95645
95646
95647
95648
95649
95650
95651
95652
95653
.....
96029
96030
96031
96032
96033
96034
96035
96036
96037
96038
96039
96040
96041
96042
96043
.....
96489
96490
96491
96492
96493
96494
96495
96496
96497
96498
96499
96500
96501
96502
96503
.....
96632
96633
96634
96635
96636
96637
96638
96639
96640
96641
96642
96643
96644
96645
96646
.....
96697
96698
96699
96700
96701
96702
96703
96704
96705
96706
96707
96708
96709
96710
96711
96712
.....
96727
96728
96729
96730
96731
96732
96733
96734
96735
96736
96737
96738
96739
96740
96741
.....
96810
96811
96812
96813
96814
96815
96816
96817
96818
96819
96820
96821
96822
96823
96824
.....
96968
96969
96970
96971
96972
96973
96974
96975
96976
96977
96978
96979
96980
96981
96982
.....
97065
97066
97067
97068
97069
97070
97071
97072
97073
97074
97075
97076
97077
97078
97079
.....
97186
97187
97188
97189
97190
97191
97192
97193
97194
97195
97196
97197
97198
97199
97200
.....
97226
97227
97228
97229
97230
97231
97232
97233
97234
97235
97236
97237
97238
97239
97240
97241
97242
.....
97529
97530
97531
97532
97533
97534
97535
97536
97537
97538
97539
97540
97541
97542
97543
97544

97545
97546
97547
97548
97549
97550
97551
.....
97556
97557
97558
97559
97560
97561
97562

97563
97564

97565
97566
97567
97568
97569
97570
97571
97572
97573
97574
97575
97576
97577
.....
97614
97615
97616
97617
97618
97619
97620
97621
97622
97623
97624
97625
97626
97627
97628
97629
97630
97631
97632
97633
97634
97635
97636
97637
.....
97643
97644
97645
97646
97647
97648
97649
97650
97651
97652
97653
97654
97655
97656
97657
97658
97659
97660
97661
97662
97663
97664
97665
97666
97667
97668
97669
97670
97671
97672
97673
97674
.....
97701
97702
97703
97704
97705
97706
97707
97708
97709
97710
97711

97712
97713
97714
97715
97716
97717
97718
.....
97778
97779
97780
97781
97782
97783
97784
97785
97786
97787
97788
97789
97790
97791
97792
.....
97806
97807
97808
97809
97810
97811
97812
97813
97814
97815
97816
97817
97818
97819
97820
.....
97875
97876
97877
97878
97879
97880
97881
97882
97883
97884
97885
97886
97887
97888
97889
97890
.....
98096
98097
98098
98099
98100
98101
98102
98103
98104
98105
98106
98107
98108
98109
98110
.....
98155
98156
98157
98158
98159
98160
98161
98162
98163
98164
98165
98166
98167
98168
98169
.....
98266
98267
98268
98269
98270
98271
98272
98273
98274
98275
98276
98277
98278
98279
98280
.....
98285
98286
98287
98288
98289
98290
98291
98292
98293
98294
98295
98296
98297
98298
98299
.....
98840
98841
98842
98843
98844
98845
98846



98847
98848
98849
98850
98851
98852
98853
.....
99378
99379
99380
99381
99382
99383
99384
99385
99386
99387
99388
99389
99390
99391
99392
.....
99393
99394
99395
99396
99397
99398
99399
99400
99401
99402
99403
99404
99405
99406
99407
99408
99409
99410
99411
99412
99413
.....
99523
99524
99525
99526
99527
99528
99529

99530

99531
99532
99533
99534
99535
99536
99537
.....
99713
99714
99715
99716
99717
99718
99719
99720
99721
99722
99723
99724
99725
99726
99727
.....
99789
99790
99791
99792
99793
99794
99795
99796
99797
99798
99799
99800
99801
99802
99803
.....
99842
99843
99844
99845
99846
99847
99848
99849
99850
99851
99852
99853
99854
99855
99856
99857
99858
99859
99860
99861
99862
99863
99864
99865
99866
99867
99868
99869
99870
.....
99910
99911
99912
99913
99914
99915
99916
99917
99918
99919
99920
99921
99922
99923
99924
......
100151
100152
100153
100154
100155
100156
100157
100158
100159
100160
100161
100162
100163
100164
100165
......
100403
100404
100405
100406
100407
100408
100409
100410
100411
100412
100413
100414
100415
100416
100417
......
100433
100434
100435
100436
100437
100438
100439
100440
100441
100442
100443
100444
100445
100446
100447
......
100748
100749
100750
100751
100752
100753
100754
100755
100756
100757
100758
100759
100760
100761
100762
......
100882
100883
100884
100885
100886
100887
100888
100889
100890
100891
100892
100893
100894
100895
100896
......
100900
100901
100902
100903
100904
100905
100906
100907
100908
100909
100910
100911
100912
100913
100914
......
101421
101422
101423
101424
101425
101426
101427
101428
101429
101430
101431
101432
101433
101434
101435
101436
101437
101438
101439
101440
101441
101442
101443
......
101445
101446
101447
101448
101449
101450
101451
101452
101453
101454
101455
101456
101457
101458
101459
......
101692
101693
101694
101695
101696
101697
101698
101699
101700
101701
101702
101703
101704
101705
101706
......
102406
102407
102408
102409
102410
102411
102412
102413
102414
102415
102416
102417
102418
102419
102420
......
102516
102517
102518
102519
102520
102521
102522
102523
102524
102525
102526
102527
102528
102529
102530
......
102593
102594
102595
102596
102597
102598
102599
102600
102601

102602
102603
102604
102605
102606
102607
102608
......
102778
102779
102780
102781
102782
102783
102784
102785
102786
102787
102788
102789
102790
102791
102792
......
103956
103957
103958
103959
103960
103961
103962
103963
103964
103965
103966
103967
103968
103969
103970
103971
103972
103973
103974
103975
103976
103977
......
105925
105926
105927
105928
105929
105930
105931
105932
105933
105934
105935
105936
105937
105938
105939
......
106296
106297
106298
106299
106300
106301
106302
106303
106304
106305
106306
106307
106308
106309
106310
106311
106312
106313
......
106665
106666
106667
106668
106669
106670
106671
106672


106673
106674
106675
106676
106677
106678
106679
......
106688
106689
106690
106691
106692
106693
106694
106695


106696
106697
106698
106699
106700
106701
106702
......
106946
106947
106948
106949
106950
106951
106952
106953
106954
106955
106956
106957
106958
106959
106960
......
106961
106962
106963
106964
106965
106966
106967
106968
106969
106970
106971
106972
106973
106974
106975
......
107011
107012
107013
107014
107015
107016
107017
107018
107019
107020

107021
107022
107023
107024
107025
107026
107027
......
108242
108243
108244
108245
108246
108247
108248




108249
108250
108251
108252
108253
108254
108255
108256
108257

108258
108259
108260
108261
108262
108263
108264
......
108641
108642
108643
108644
108645
108646
108647

108648
108649
108650
108651
108652
108653
108654
......
108682
108683
108684
108685
108686
108687
108688
108689
108690
108691
108692
108693
108694
108695
108696
......
109944
109945
109946
109947
109948
109949
109950
109951
109952
109953
109954
109955
109956
109957
109958
......
109975
109976
109977
109978
109979
109980
109981
109982
109983
109984
109985
109986
109987
109988
109989
109990
109991
109992
109993
109994
109995
109996
109997
109998
109999
110000
110001
110002
110003
110004
110005
110006
110007
110008
110009
110010
110011
......
110032
110033
110034
110035
110036
110037
110038
110039
110040
110041
110042
110043
110044
110045
110046
......
110079
110080
110081
110082
110083
110084
110085
110086
110087
110088
110089
110090
110091
110092
110093
......
110104
110105
110106
110107
110108
110109
110110
110111
110112
110113
110114
110115
110116
110117
110118
......
110142
110143
110144
110145
110146
110147
110148





110149
110150
110151
110152
110153
110154
110155
110156
110157
110158
110159
110160
110161
110162
110163
110164
110165
......
110970
110971
110972
110973
110974
110975
110976
110977
110978
110979
110980
110981
110982
110983
110984
......
111823
111824
111825
111826
111827
111828
111829
111830
111831
111832
111833
111834
111835
111836
111837
111838
111839
111840
......
112115
112116
112117
112118
112119
112120
112121
112122
112123
112124
112125
112126
112127
112128
112129
......
112554
112555
112556
112557
112558
112559
112560
112561
112562
112563
112564
112565
112566
112567
112568
112569
112570
112571
112572
112573
112574
112575
112576
......
112698
112699
112700
112701
112702
112703
112704

112705
112706
112707
112708
112709
112710
112711
112712
112713
112714
112715

112716
112717
112718
112719
112720
112721
112722
......
112732
112733
112734
112735
112736
112737
112738
112739
112740
112741
112742
112743
112744
112745
112746
......
112911
112912
112913
112914
112915
112916
112917
112918
112919
112920
112921
112922
112923
112924
112925
......
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
......
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
113228
113229
113230
113231
113232
113233
113234
113235
113236
113237
113238
113239
113240
113241
113242
113243
113244
113245
113246
113247
113248
113249
113250
113251
113252
113253
113254
113255
113256
113257
113258
113259
113260
113261
113262
113263
113264
113265
113266
113267
113268
113269
113270
113271
113272
113273
113274
113275
113276
113277
113278
113279
113280
113281
113282
113283
113284
113285
113286
113287
113288
113289
113290
113291
113292
113293
113294
113295
113296
113297
113298
......
113365
113366
113367
113368
113369
113370
113371
113372
113373
113374
113375
113376
113377
113378
113379
113380
113381
113382
113383
113384
113385
113386
113387
113388
113389
113390
113391
......
113453
113454
113455
113456
113457
113458
113459
113460
113461
113462
113463
113464
113465
113466
113467
113468
113469
113470
113471
113472
113473
113474
113475
113476
113477
113478
113479
......
113572
113573
113574
113575
113576
113577
113578
113579
113580
113581
113582
113583
113584
113585
113586
......
114143
114144
114145
114146
114147
114148
114149
114150
114151
114152
114153
114154
114155
114156
114157
114158
114159
114160
114161
114162
114163
114164
114165
114166
114167
114168
114169
114170
114171
114172
114173
114174
114175
114176
114177
114178
114179
114180
......
114376
114377
114378
114379
114380
114381
114382
114383
114384
114385
114386
114387
114388
114389
114390

114391
114392
114393

114394

114395
114396
114397
114398
114399
114400
114401
114402
......
114404
114405
114406
114407
114408
114409
114410
114411
114412
114413
114414
114415
114416

114417
114418
114419
114420
114421
114422
114423
114424
......
114512
114513
114514
114515
114516
114517
114518
114519
114520
114521
114522
114523
114524
114525
114526
......
114725
114726
114727
114728
114729
114730
114731
114732
114733
114734
114735
114736
114737
114738
114739
114740
114741
114742
114743
114744
114745
114746
114747
114748
114749
114750
114751
114752
114753
......
114767
114768
114769
114770
114771
114772
114773
114774
114775
114776
114777
114778
114779
114780
114781
114782
114783
114784
114785
114786
114787
114788
114789
114790
......
114795
114796
114797
114798
114799
114800
114801



114802

114803
114804
114805
114806
114807
114808
114809
......
114942
114943
114944
114945
114946
114947
114948
114949
114950
114951
114952
114953
114954
114955
114956
......
115297
115298
115299
115300
115301
115302
115303
115304
115305
115306
115307
115308
115309
115310
115311
......
116136
116137
116138
116139
116140
116141
116142
116143
116144
116145
116146
116147
116148
116149
116150
116151
116152
116153

116154
116155
116156
116157
116158
116159
116160
116161
......
117203
117204
117205
117206
117207
117208
117209
117210
117211

117212
117213
117214
117215
117216
117217
117218
117219
117220
117221
117222
......
117898
117899
117900
117901
117902
117903
117904
117905
117906
117907
117908
117909
117910
117911
117912
......
118381
118382
118383
118384
118385
118386
118387
118388
118389
118390
118391
118392
118393
118394
118395
118396
118397
118398
118399
118400
118401
118402
118403
118404
......
118545
118546
118547
118548
118549
118550
118551
118552
118553
118554
118555
118556
118557
118558
118559
......
119308
119309
119310
119311
119312
119313
119314
119315
119316
119317
119318
119319
119320
119321
119322
......
119377
119378
119379
119380
119381
119382
119383
119384
119385
119386
119387
119388
119389
119390
119391
......
119492
119493
119494
119495
119496
119497
119498
119499
119500
119501
119502
119503
119504
119505
119506
......
119605
119606
119607
119608
119609
119610
119611
119612
119613
119614
119615

119616
119617
119618
119619
119620
119621
119622
119623
119624
119625
......
119705
119706
119707
119708
119709
119710
119711
119712
119713
119714
119715
119716
119717
119718
119719
......
119894
119895
119896
119897
119898
119899
119900
119901
119902
119903
119904
119905
119906
119907
119908
......
119940
119941
119942
119943
119944
119945
119946
119947
119948
119949
119950
119951
119952
119953
119954
......
119956
119957
119958
119959
119960
119961
119962
119963
119964
119965
119966
119967
119968
119969
119970
......
120059
120060
120061
120062
120063
120064
120065

120066

120067
120068
120069
120070
120071
120072
120073
120074
......
120274
120275
120276
120277
120278
120279
120280
120281
120282
120283
120284
120285
120286
120287
120288
......
120747
120748
120749
120750
120751
120752
120753
120754
120755
120756
120757
120758
120759
120760
120761
......
121349
121350
121351
121352
121353
121354
121355
121356
121357
121358
121359
121360
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
121400
121401
121402
121403
121404
121405
121406
121407
121408
121409
121410
121411
121412
121413
......
121432
121433
121434
121435
121436
121437
121438
121439
121440
121441

121442
121443
121444
121445
121446
121447
121448
121449
121450
121451
121452
121453
121454
121455
121456
121457
121458
121459
121460
121461
121462
121463

121464
121465
121466
121467
121468
121469
121470
......
121474
121475
121476
121477
121478
121479
121480
121481

121482
121483
121484

121485
121486
121487
121488
121489
121490
121491
121492
......
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
......
121528
121529
121530
121531
121532
121533
121534
121535
121536
121537
121538
121539
121540
121541
121542
121543
121544
121545
121546
121547
121548
121549
121550
121551
......
121564
121565
121566
121567
121568
121569
121570

121571
121572
121573

121574

121575
121576
121577
121578
121579
121580
121581
121582
121583
121584

121585
121586
121587
121588
121589
121590
121591
121592
121593
121594

121595
121596
121597

121598
121599
121600
121601
121602
121603
121604
121605
121606
121607
121608
121609
121610
121611
121612
121613
121614
121615
121616
121617
121618
121619
121620
121621
121622
121623
121624
121625
121626
121627
121628
121629
121630
121631
121632
121633
121634
121635
......
121675
121676
121677
121678
121679
121680
121681

121682
121683
121684
121685
121686
121687
121688
......
121787
121788
121789
121790
121791
121792
121793
121794
121795
121796
121797
121798
121799
121800
121801
......
121802
121803
121804
121805
121806
121807
121808
121809
121810
121811
121812
121813
121814
121815
121816
......
122053
122054
122055
122056
122057
122058
122059
122060
122061
122062
122063
122064
122065
122066
122067
......
122117
122118
122119
122120
122121
122122
122123
122124
122125
122126
122127
122128
122129
122130
122131
......
122227
122228
122229
122230
122231
122232
122233
122234
122235
122236
122237
122238
122239
122240
122241
......
122381
122382
122383
122384
122385
122386
122387
122388
122389
122390
122391
122392
122393
122394
122395
122396
122397
122398
122399
122400
122401
122402
122403
122404
122405
......
122426
122427
122428
122429
122430
122431
122432
122433
122434
122435
122436
122437
122438
122439
122440
......
122515
122516
122517
122518
122519
122520
122521
122522
122523
122524
122525
122526
122527
122528
122529
......
122883
122884
122885
122886
122887
122888
122889
122890
122891
122892
122893
122894
122895
122896
122897
......
122901
122902
122903
122904
122905
122906
122907
122908
122909
122910
122911
122912
122913
122914
122915
......
123082
123083
123084
123085
123086
123087
123088


123089
123090
123091
123092
123093
123094
123095
......
123204
123205
123206
123207
123208
123209
123210






123211
123212

123213
123214
123215
123216
123217
123218
123219
123220
123221
123222
123223
123224
123225
123226
123227
123228
123229
123230
......
123369
123370
123371
123372
123373
123374
123375
123376
123377
123378
123379




123380

123381
123382
123383
123384
123385
123386
123387
123388

123389
123390
123391
123392
123393
123394
123395
123396
123397
123398
123399
123400
123401
......
123511
123512
123513
123514
123515
123516
123517











123518
123519
123520
123521
123522
123523
123524
123525
123526
123527
123528
123529
123530
123531
123532
123533
123534
123535
123536
123537
123538
123539
123540
123541
123542
123543
123544
123545








123546
123547
123548
123549
123550
123551
123552
......
123571
123572
123573
123574
123575
123576
123577
123578
123579

123580
123581
123582
123583
123584
123585
123586
123587
123588
123589
123590
......
123766
123767
123768
123769
123770
123771
123772
123773
123774
123775
123776
123777
123778
123779
123780
......
123822
123823
123824
123825
123826
123827
123828

























123829
123830
123831
123832
123833
123834
123835




123836
123837
123838
123839
123840
123841
123842
123843
123844
123845
......
123846
123847
123848
123849
123850
123851
123852

123853
123854
123855
123856
123857
123858
123859
123860
123861
123862
123863
123864



123865
123866
123867
123868
123869
123870
123871
123872
123873
123874
123875












123876
























































123877
123878
123879
123880
123881
123882
123883
123884
123885

123886
123887
123888
123889

123890

123891
123892
123893
123894
123895

123896
123897



123898

123899
123900

123901
123902



123903
123904






123905
123906
123907

123908
123909
123910
123911
123912
123913
123914
......
124026
124027
124028
124029
124030
124031
124032
124033
124034






124035
124036
124037
124038
124039
124040
124041
124042
......
124350
124351
124352
124353
124354
124355
124356

































124357
124358
124359
124360
124361
124362
124363
......
124446
124447
124448
124449
124450
124451
124452
124453

124454
124455
124456
124457
124458
124459
124460
......
124560
124561
124562
124563
124564
124565
124566

124567
124568
124569
124570
124571
124572
124573
......
124579
124580
124581
124582
124583
124584
124585





124586



124587
124588
124589
124590
124591
124592
124593
124594
124595
124596
124597
124598
124599
124600
124601
124602
124603
124604
124605
124606
124607
124608
124609

124610

124611
124612
124613
124614

124615

124616
124617
124618
124619
124620
124621
124622
......
124675
124676
124677
124678
124679
124680
124681


124682
124683
124684
124685
124686
124687
124688
124689
124690
124691
124692
124693
124694
124695
124696
124697
124698
124699
124700
124701
......
124721
124722
124723
124724
124725
124726
124727
124728
124729
124730
124731
124732
124733
124734
124735
124736
124737
124738
124739
124740
124741
124742
......
124746
124747
124748
124749
124750
124751
124752
124753
124754
124755
124756
124757

124758
124759
124760
124761
124762
124763
124764
124765
124766
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
124802
124803
124804
124805
124806
124807
124808
124809
124810
124811
124812
124813
124814
124815





124816
124817
124818
124819
124820
124821
124822
......
124841
124842
124843
124844
124845
124846
124847
124848
124849
124850
124851
124852
124853
124854
124855
124856
124857
124858
124859


124860
124861
124862






124863
124864
124865
124866
124867
124868

124869
124870
124871
124872
124873
124874
124875
......
124877
124878
124879
124880
124881
124882
124883
124884
124885
124886
124887
124888
124889
124890
124891
124892
......
124902
124903
124904
124905
124906
124907
124908
124909
124910
124911
124912
124913
124914
124915
124916
124917
124918
......
124981
124982
124983
124984
124985
124986
124987
124988
124989
124990
124991
124992
124993
124994
124995
......
125282
125283
125284
125285
125286
125287
125288
125289
125290
125291
125292
125293
125294
125295
125296
......
125300
125301
125302
125303
125304
125305
125306
125307
125308
125309
125310
125311
125312
125313
125314
125315
125316
125317
125318
125319
125320
......
125415
125416
125417
125418
125419
125420
125421
125422
125423
125424
125425
125426
125427
125428
125429
125430
125431
125432
125433


125434
125435
125436
125437
125438
125439
125440
125441
125442
125443
125444
125445
125446
125447
......
125628
125629
125630
125631
125632
125633
125634
125635
125636
125637
125638
125639
125640
125641
125642
......
126161
126162
126163
126164
126165
126166
126167
126168

126169
126170
126171
126172
126173
126174
126175

126176
126177
126178
126179
126180
126181
126182
126183











126184
126185
126186
126187
126188
126189
126190
126191
126192
126193
126194
126195
126196
126197
126198
126199
126200
126201
126202
126203
126204
126205
126206
......
126249
126250
126251
126252
126253
126254
126255

126256
126257
126258
126259
126260
126261
126262
......
126275
126276
126277
126278
126279
126280
126281







126282
126283
126284
126285
126286
126287
126288
126289
126290
126291
126292
126293

126294
126295
126296
126297
126298
126299
126300
......
126489
126490
126491
126492
126493
126494
126495





















































126496
126497
126498
126499
126500
126501
126502
......
126510
126511
126512
126513
126514
126515
126516
126517
126518
126519
126520
126521
126522
126523
126524
......
126613
126614
126615
126616
126617
126618
126619
126620
126621
126622
126623
126624
126625

126626
126627
126628
126629
126630
126631
126632
126633
......
126687
126688
126689
126690
126691
126692
126693
126694
126695
126696
126697
126698
126699
126700
126701
......
127353
127354
127355
127356
127357
127358
127359
127360
127361
127362
127363
127364
127365
127366
127367
......
127528
127529
127530
127531
127532
127533
127534
127535

127536
127537
127538
127539
127540
127541
127542
127543
127544

127545
127546
127547
127548
127549
127550
127551
......
127626
127627
127628
127629
127630
127631
127632









127633
127634
127635
127636
127637
127638
127639
127640

127641
127642
127643
127644
127645
127646
127647
......
127909
127910
127911
127912
127913
127914
127915
127916
127917
127918
127919
127920
127921
127922
127923
......
128086
128087
128088
128089
128090
128091
128092
128093

128094
128095
128096
128097
128098
128099
128100
......
128116
128117
128118
128119
128120
128121
128122
128123
128124
128125
128126
128127
128128
128129
128130
128131
......
128136
128137
128138
128139
128140
128141
128142

128143
128144
128145
128146
128147
128148
128149
128150
128151


128152
128153
128154
128155
128156
128157
128158
128159
128160
128161
128162
128163
128164
128165
128166


128167
128168
128169
128170
128171
128172
128173
128174
128175
......
128251
128252
128253
128254
128255
128256
128257
128258
128259
128260
128261
128262
128263
128264
128265
......
128275
128276
128277
128278
128279
128280
128281
128282
128283
128284
128285
128286
128287
128288
128289
128290
......
128365
128366
128367
128368
128369
128370
128371
128372
128373
128374





128375
128376
128377
128378
128379
128380
128381
......
128888
128889
128890
128891
128892
128893
128894


































































128895
128896
128897
128898
128899
128900
128901
......
128927
128928
128929
128930
128931
128932
128933


128934
128935
128936
128937
128938
128939
128940
128941
128942
128943


128944
128945
128946
128947
128948
128949

128950
128951
128952
128953
128954
128955
128956


128957
128958
128959
128960
128961
128962
128963
......
128993
128994
128995
128996
128997
128998
128999


129000
129001
129002
129003
129004
129005
129006
......
129009
129010
129011
129012
129013
129014
129015

129016









129017
129018
129019
129020
129021
129022
129023
129024
129025
129026
129027
129028
129029
129030
......
129036
129037
129038
129039
129040
129041
129042



129043
129044
129045
129046
129047
129048
129049
129050
129051
129052
129053
129054

129055
129056
129057
129058
129059
129060



129061
129062
129063
129064
129065
129066
129067
......
129153
129154
129155
129156
129157
129158
129159


129160
129161
129162
129163
129164
129165
129166
......
129192
129193
129194
129195
129196
129197
129198


129199
129200
129201
129202
129203
129204
129205
......
129274
129275
129276
129277
129278
129279
129280
129281
129282
129283
129284
129285
129286
129287
129288
......
129428
129429
129430
129431
129432
129433
129434


129435
129436
129437
129438
129439
129440
129441
......
129556
129557
129558
129559
129560
129561
129562

129563
129564
129565
129566
129567
129568
129569
......
129644
129645
129646
129647
129648
129649
129650

129651
129652
129653
129654
129655
129656
129657
......
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
129744
129745
129746
129747
129748
129749
129750
129751
129752
129753
......
129756
129757
129758
129759
129760
129761
129762

129763
129764
129765
129766
129767
129768
129769
129770
......
129782
129783
129784
129785
129786
129787
129788

129789
129790
129791
129792
129793
129794
129795
129796
129797
129798
129799
129800
129801

129802
129803
129804
129805
129806
129807
129808
129809

129810
129811
129812
129813
129814
129815
129816
129817
......
130103
130104
130105
130106
130107
130108
130109








130110
130111
130112
130113
130114
130115
130116
......
130139
130140
130141
130142
130143
130144
130145
130146
130147






130148
130149
130150
130151
130152
130153
130154






130155
130156
130157
130158
130159














130160
130161
130162
130163
130164
130165
130166
......
130181
130182
130183
130184
130185
130186
130187
130188
130189
130190
130191
130192
130193
130194
130195
......
130218
130219
130220
130221
130222
130223
130224
130225
130226
130227
130228
130229
130230
130231
130232
......
130673
130674
130675
130676
130677
130678
130679

130680



130681
130682
130683


130684
130685
130686

130687
130688
130689
130690
130691
130692
130693
......
130956
130957
130958
130959
130960
130961
130962
130963
130964
130965
130966
130967
130968
130969
130970
130971
130972
130973
130974


130975
130976
130977
130978



130979
130980
130981
130982
130983
130984
130985
......
131375
131376
131377
131378
131379
131380
131381

131382
131383
131384
131385

131386
131387
131388
131389
131390
131391
131392
......
131580
131581
131582
131583
131584
131585
131586
131587
131588
131589
131590
131591
131592
131593
131594
131595
131596
131597
131598
131599
131600
131601
131602
131603
131604
131605
131606
131607
131608
131609
131610
131611
131612
131613
131614
131615
131616
131617
131618
......
131651
131652
131653
131654
131655
131656
131657

















131658
131659
131660
131661
131662
131663
131664
131665
......
131814
131815
131816
131817
131818
131819
131820
131821
131822
131823
131824
131825
131826
131827
131828
131829
131830
131831
131832
131833
131834
131835
131836
131837
131838
131839
131840
131841
131842
131843
131844
131845
131846
131847
131848
......
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
......
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
132284
132285
132286
132287
132288
132289
132290
132291
132292
132293
132294
132295
132296
132297
132298
132299
132300
132301
132302
132303








132304
132305
132306
132307
132308
132309
132310
132311
132312
132313
132314
132315
132316
132317
132318
132319
132320
132321
132322
132323
132324
132325
132326
132327
132328
132329
132330
132331
132332
132333
132334
132335
132336
132337
132338
132339
132340
132341
132342
132343
132344
132345
132346
132347
132348
132349
132350









132351
132352
132353
132354
132355
132356
132357
......
132577
132578
132579
132580
132581
132582
132583
132584
132585
132586
132587
132588
132589
132590
132591
......
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
132882
132883
132884
132885
132886
132887
132888
132889
132890
132891
132892
132893
132894
132895
132896
132897
132898
132899
132900
132901
132902
132903
132904
132905
132906
132907
132908
132909
132910
132911
132912
132913
132914
132915
132916
132917
132918
132919
132920
132921
132922
132923
132924
132925
132926
132927
132928
132929
132930
132931
132932
132933
132934
132935
132936
132937
132938
132939
132940
132941
132942
132943
132944
132945
132946
132947
132948
132949
132950
132951
132952
132953
132954
132955
......
133198
133199
133200
133201
133202
133203
133204
133205
133206
133207
133208
133209
133210
133211
133212
133213
133214
133215
133216
133217
133218
133219
133220
133221
133222
133223
133224
133225
133226
133227
133228
133229
133230
133231
133232
133233
133234
133235
133236
133237
133238
133239
133240
133241
133242
133243
133244
133245
133246
133247
133248
133249
133250
133251
133252
133253
133254
133255
......
133507
133508
133509
133510
133511
133512
133513

133514

133515
133516
133517
133518
133519
133520
133521
......
133524
133525
133526
133527
133528
133529
133530

133531
133532
133533
133534
133535
133536

133537
133538
133539
133540
133541
133542
133543
......
133817
133818
133819
133820
133821
133822
133823
133824
133825
133826
133827
133828
133829
133830
133831
......
133956
133957
133958
133959
133960
133961
133962
133963
133964
133965
133966
133967
133968
133969
133970
133971
133972
133973
133974
133975
133976
133977
......
133999
134000
134001
134002
134003
134004
134005
134006
134007
134008
134009
134010
134011
134012
134013
......
134127
134128
134129
134130
134131
134132
134133
134134
134135
134136
134137
134138
134139
134140
134141
134142
134143
......
134147
134148
134149
134150
134151
134152
134153
134154
134155
134156
134157
134158
134159
134160
134161
134162
134163
134164
134165
134166
134167
134168
134169
134170
......
134239
134240
134241
134242
134243
134244
134245
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
......
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


134465
134466
134467
134468
134469
134470
134471
134472
134473
134474
134475


134476
134477
134478
134479
134480
134481
134482
134483
134484
134485
134486
134487
134488
134489
134490
134491
134492
134493
134494
134495
134496
134497
134498
134499
134500
134501
134502
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
......
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
134637
134638
134639
134640
134641
134642
134643
134644
134645
134646
134647
134648
134649
134650
134651
134652
134653
134654
134655
134656
134657
134658
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
134723
134724
134725
134726
134727
134728
134729
134730
134731
134732
134733
134734
134735
134736
134737
134738
134739
134740
134741
134742
134743
134744
134745
134746
134747
134748
134749
134750
134751
134752
134753
134754
134755
134756
134757
134758
134759
134760
134761
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
134823
134824
134825
134826
134827
134828
134829
134830
134831
134832
134833
134834
134835
134836
134837
134838
134839
134840
134841
134842
134843
134844
134845
134846
134847
134848
134849
134850
134851
134852
134853
134854
134855
134856
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
134886
134887
134888
134889
134890
134891
134892
134893
134894
134895
134896
134897
134898
134899
134900
134901
134902
134903
134904
134905
134906
134907
134908
134909
134910
134911
134912
134913
134914
134915
134916
134917
134918
134919
134920
134921
134922
134923
134924
134925
134926
134927
134928
134929
134930
134931
134932
134933
134934
134935
134936
134937
134938
134939
134940
134941
134942
134943
134944
134945
134946
134947
134948
134949
134950
134951
134952
134953
134954
134955
134956
134957
134958
134959
......
135136
135137
135138
135139
135140
135141
135142
135143
135144
135145
135146
135147
135148
135149
135150
......
136004
136005
136006
136007
136008
136009
136010
136011
136012

136013
136014
136015
136016
136017
136018











136019
136020
136021
136022
136023
136024
136025
......
136032
136033
136034
136035
136036
136037
136038
136039
136040
136041
136042
136043
136044
136045
136046
136047
136048
136049
136050
136051
136052
136053
136054
......
136208
136209
136210
136211
136212
136213
136214
136215
136216
136217
136218
136219
136220
136221
136222
......
136373
136374
136375
136376
136377
136378
136379
136380
136381
136382
136383
136384
136385
136386
136387
......
136533
136534
136535
136536
136537
136538
136539
136540
136541
136542
136543
136544
136545
136546
136547
136548
136549
136550
136551
136552
136553
136554
136555
136556
136557
136558
136559
136560
136561
136562
136563
136564
......
136623
136624
136625
136626
136627
136628
136629
136630
136631
136632
136633
136634
136635
136636
136637
......
136789
136790
136791
136792
136793
136794
136795
136796
136797
136798
136799
136800
136801
136802
136803
......
136843
136844
136845
136846
136847
136848
136849
136850
136851
136852
136853
136854
136855
136856
136857
......
137208
137209
137210
137211
137212
137213
137214
137215
137216
137217
137218
137219
137220
137221
137222
137223
137224
137225
137226
137227
137228
137229
137230
137231
137232
137233
137234
137235
137236
......
137246
137247
137248
137249
137250
137251
137252
137253
137254
137255
137256
137257
137258
137259
137260
......
137275
137276
137277
137278
137279
137280
137281
137282
137283
137284
137285
137286





137287
137288
137289
137290
137291
137292
137293
......
137396
137397
137398
137399
137400
137401
137402
137403
137404
137405
137406
137407
137408
137409
137410
137411
137412
137413
137414
137415
137416
137417
137418
137419
137420
137421
137422
137423
137424
137425
137426
137427
137428
137429
137430
137431
137432
137433
137434
137435
137436
......
137573
137574
137575
137576
137577
137578
137579
137580
137581
137582
137583
137584
137585
137586
137587
137588
......
137981
137982
137983
137984
137985
137986
137987
137988
137989
137990
137991
137992
137993
137994
137995
......
138004
138005
138006
138007
138008
138009
138010
138011
138012
138013
138014
138015
138016
138017
138018
......
138035
138036
138037
138038
138039
138040
138041
138042
138043
138044
138045
138046
138047
138048
138049
......
138051
138052
138053
138054
138055
138056
138057
138058
138059
138060
138061
138062
138063
138064
138065
......
138167
138168
138169
138170
138171
138172
138173
138174
138175
138176
138177
138178
138179
138180
138181
138182
138183
138184
138185
138186
138187
138188
138189
138190
138191
138192
138193
138194
138195
......
138224
138225
138226
138227
138228
138229
138230
138231
138232
138233
138234
138235
138236
138237
138238
......
138264
138265
138266
138267
138268
138269
138270
138271
138272
138273
138274
138275
138276
138277
138278
......
138296
138297
138298
138299
138300
138301
138302
138303
138304
138305
138306
138307
138308
138309
138310
......
138317
138318
138319
138320
138321
138322
138323
138324
138325
138326
138327
138328
138329
138330
138331
138332
138333
138334
138335


138336
138337
138338
138339
138340
138341
138342
......
138345
138346
138347
138348
138349
138350
138351
138352
138353
138354
138355
138356
138357
138358
138359
......
138373
138374
138375
138376
138377
138378
138379
138380
138381
138382
138383
138384
138385
138386
138387
......
138398
138399
138400
138401
138402
138403
138404
138405
138406
138407
138408
138409
138410
138411
138412
......
138423
138424
138425
138426
138427
138428
138429
138430
138431
138432
138433
138434
138435
138436
138437
......
138449
138450
138451
138452
138453
138454
138455
138456
138457
138458
138459
138460
138461
138462
138463
......
138498
138499
138500
138501
138502
138503
138504
138505
138506
138507
138508
138509
138510
138511
138512
......
138519
138520
138521
138522
138523
138524
138525
138526
138527
138528
138529
138530
138531
138532
138533
......
138546
138547
138548
138549
138550
138551
138552
138553
138554
138555
138556
138557
138558
138559
138560
......
138601
138602
138603
138604
138605
138606
138607
138608
138609
138610
138611
138612
138613
138614
138615
......
138692
138693
138694
138695
138696
138697
138698
138699
138700
138701
138702
138703
138704
138705
138706
......
138720
138721
138722
138723
138724
138725
138726
138727
138728
138729
138730
138731
138732
138733
138734
......
138765
138766
138767
138768
138769
138770
138771
138772
138773
138774
138775
138776
138777
138778
138779
138780
138781
138782
138783
138784
138785
138786
138787
138788
138789
138790
138791
138792
138793
138794
138795
138796
138797
138798
138799
138800
138801
138802
138803
138804
138805
138806
......
138940
138941
138942
138943
138944
138945
138946
138947
138948
138949
138950
138951
138952
138953
138954
......
139423
139424
139425
139426
139427
139428
139429
139430
139431
139432
139433
139434
139435
139436
139437
139438
139439
139440
139441
139442
139443
139444
139445










139446
139447
139448
139449
139450
139451
139452
139453
139454
139455
139456
139457
......
139470
139471
139472
139473
139474
139475
139476
139477
139478
139479
139480
139481
139482
139483
139484
139485
139486
139487
139488
139489
......
139564
139565
139566
139567
139568
139569
139570
139571
139572
139573
139574
139575
139576
139577
139578
139579
139580
139581
139582
139583
139584
139585
139586
139587
139588
139589
139590
139591
139592
139593
139594
139595
139596
139597
139598
......
139623
139624
139625
139626
139627
139628
139629
139630
139631
139632
139633
139634
139635
139636
139637
139638
139639
139640
139641
139642
139643
139644
139645
139646
139647
139648
139649
139650
......
139661
139662
139663
139664
139665
139666
139667
139668
139669
139670
139671
139672
139673
139674
139675
......
139691
139692
139693
139694
139695
139696
139697
139698
139699
139700
139701
139702
139703
139704
139705
......
139712
139713
139714
139715
139716
139717
139718
139719
139720
139721
139722
139723
139724
139725
139726
......
139734
139735
139736
139737
139738
139739
139740
139741
139742
139743
139744
139745
139746
139747
139748
139749
139750
139751
139752
139753
139754
139755
139756
139757
139758
139759
......
139802
139803
139804
139805
139806
139807
139808
139809
139810
139811
139812
139813
139814
139815
139816
139817
139818
139819
139820
139821
139822
139823
139824
......
139928
139929
139930
139931
139932
139933
139934
139935
139936
139937
139938
139939
139940
139941
139942
......
139944
139945
139946
139947
139948
139949
139950
139951
139952
139953
139954
139955
139956
139957
139958
139959
139960
139961
139962
139963
139964
139965
139966
139967
139968
139969
139970
139971
......
139997
139998
139999
140000
140001
140002
140003
140004
140005
140006
140007
140008
140009
140010
140011
......
140265
140266
140267
140268
140269
140270
140271









140272
140273
140274
140275
140276
140277
140278
......
140342
140343
140344
140345
140346
140347
140348
140349
140350
140351
140352
140353
140354
140355
140356
......
140357
140358
140359
140360
140361
140362
140363
140364
140365
140366
140367
140368
140369
140370
140371
140372
140373
140374
140375
140376
140377
140378
140379
140380
......
140386
140387
140388
140389
140390
140391
140392
140393
140394
140395
140396
140397
140398
140399
140400
140401
140402
140403
140404
140405
140406
140407
140408
140409
140410
140411
140412
......
140414
140415
140416
140417
140418
140419
140420
140421
140422
140423
140424
140425
140426
140427
140428
......
140431
140432
140433
140434
140435
140436
140437
140438
140439
140440
140441
140442
140443
140444
140445
......
140466
140467
140468
140469
140470
140471
140472
140473
140474
140475
140476
140477
140478
140479
140480
......
140503
140504
140505
140506
140507
140508
140509
140510
140511
140512
140513
140514
140515
140516
140517
......
140657
140658
140659
140660
140661
140662
140663
140664
140665
140666
140667
140668
140669
140670
140671
......
147660
147661
147662
147663
147664
147665
147666
147667
147668
147669
147670
147671
147672
147673
147674
......
161501
161502
161503
161504
161505
161506
161507
161508
161509
161510
161511
161512
161513
161514
161515
......
162971
162972
162973
162974
162975
162976
162977
162978
162979


162980
162981

162982
162983
162984
162985
162986
162987
162988
......
163461
163462
163463
163464
163465
163466
163467
163468
163469
163470
163471
163472
163473
163474
163475
......
163485
163486
163487
163488
163489
163490
163491
163492
163493
163494
163495
163496
163497
163498
163499
......
163510
163511
163512
163513
163514
163515
163516
163517
163518
163519
163520
163521
163522
163523
163524
......
164061
164062
164063
164064
164065
164066
164067
164068
164069
164070
164071
164072
164073
164074
164075
......
164537
164538
164539
164540
164541
164542
164543
164544
164545
164546
164547
164548
164549
164550
164551
......
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
164777
164778
164779
164780
164781
164782
164783
164784
164785
164786
164787
164788
......
164810
164811
164812
164813
164814
164815
164816
164817
164818
164819
164820
164821
164822
164823
164824
164825
164826
164827
164828
164829
164830
164831
164832
164833
164834
164835
164836
164837
164838
164839
164840
164841
164842
164843
164844
164845
164846
164847
164848
164849
164850
......
164856
164857
164858
164859
164860
164861
164862
164863
164864
164865
164866
164867
164868
164869
164870
164871
164872
164873
164874
164875
164876
164877
......
164905
164906
164907
164908
164909
164910
164911
164912
164913
164914
164915
164916
164917
164918
164919
......
164943
164944
164945
164946
164947
164948
164949
164950
164951
164952
164953
164954
164955
164956
164957
......
164987
164988
164989
164990
164991
164992
164993
164994
164995
164996
164997
164998
164999
165000
165001
165002
165003
165004
165005
165006
165007
165008
165009
165010
165011
......
167253
167254
167255
167256
167257
167258
167259
167260
167261
167262
167263
167264
167265
167266
167267
167268




167269
167270
167271
167272
167273
167274
167275
......
168091
168092
168093
168094
168095
168096
168097
168098
168099
168100
168101
168102
168103
168104
168105
......
168396
168397
168398
168399
168400
168401
168402
168403
168404
168405
168406
168407
168408
168409
168410
168411
......
168419
168420
168421
168422
168423
168424
168425
168426
168427
168428
168429
168430
168431
168432
168433
168434
......
168529
168530
168531
168532
168533
168534
168535














168536
168537
168538
168539
168540
168541
168542
168543
168544

168545
168546
168547
168548
168549
168550
168551
168552
168553
168554
168555

168556
168557
168558
168559
168560
168561
168562
168563
168564
168565
168566
168567
168568
168569
168570
......
168588
168589
168590
168591
168592
168593
168594
168595
168596
168597
168598
168599
168600
168601
168602
......
168626
168627
168628
168629
168630
168631
168632

168633
168634
168635
168636
168637
168638
168639
168640
168641
168642
168643
168644
168645
168646
168647
168648
168649
168650
168651
168652
168653
168654
168655
168656
168657
168658
168659
168660
168661
......
168682
168683
168684
168685
168686
168687
168688
168689
168690
168691
168692
168693
168694
168695
168696
......
168710
168711
168712
168713
168714
168715
168716
168717
168718
168719
168720
168721
168722
168723
168724
......
169537
169538
169539
169540
169541
169542
169543
169544
169545
169546
169547
169548
169549
169550
169551
169552
169553
169554
169555
169556
169557
169558
169559
169560
169561
169562
169563
169564
169565
......
170237
170238
170239
170240
170241
170242
170243
170244
170245
170246
170247
170248
170249
170250
170251
......
170291
170292
170293
170294
170295
170296
170297
170298
170299
170300
170301
170302
170303
170304
170305
......
171796
171797
171798
171799
171800
171801
171802
171803
171804
171805
171806
171807
171808
171809
171810
......
171890
171891
171892
171893
171894
171895
171896
171897
171898
171899
171900
171901
171902
171903
171904
......
171952
171953
171954
171955
171956
171957
171958
171959
171960
171961
171962
171963
171964
171965
171966
......
171981
171982
171983
171984
171985
171986
171987
171988
171989
171990
171991
171992
171993
171994
171995
......
171999
172000
172001
172002
172003
172004
172005
172006
172007
172008
172009
172010
172011
172012
172013
......
172689
172690
172691
172692
172693
172694
172695
172696
172697
172698
172699
172700
172701
172702
172703
172704
172705
172706
172707
172708
172709
172710
172711
172712
172713
172714
172715
172716
172717
172718
172719
172720
172721
172722
172723
172724
172725
......
172726
172727
172728
172729
172730
172731
172732
172733
172734
172735
172736
172737
172738
172739
172740
172741
172742
172743
172744
172745
172746
172747
172748
172749
172750
172751
172752
172753
172754
172755
172756
172757
172758
172759
172760
172761
172762
172763
172764
172765
......
172766
172767
172768
172769
172770
172771
172772
172773
172774
172775
172776
172777
172778
172779
172780
......
172816
172817
172818
172819
172820
172821
172822
172823
172824
172825
172826
172827
172828
172829
172830
172831
172832
172833
172834
172835
172836
172837
172838
172839
172840
172841
......
173248
173249
173250
173251
173252
173253
173254
173255
173256
173257
173258
173259
173260
173261
173262
173263
173264
173265
173266
173267
173268
173269
173270
173271
......
173277
173278
173279
173280
173281
173282
173283
173284
173285
173286
173287
173288
173289
173290
173291
......
173300
173301
173302
173303
173304
173305
173306
173307
173308
173309
173310
173311
173312
173313
173314
......
173328
173329
173330
173331
173332
173333
173334
173335
173336
173337
173338
173339
173340
173341
173342
......
173362
173363
173364
173365
173366
173367
173368
173369
173370
173371
173372
173373
173374
173375
173376
......
173385
173386
173387
173388
173389
173390
173391
173392
173393
173394
173395
173396
173397
173398
173399
......
173403
173404
173405
173406
173407
173408
173409
173410
173411
173412
173413
173414
173415
173416
173417
......
173577
173578
173579
173580
173581
173582
173583
173584
173585
173586
173587
173588
173589
173590
173591
......
173596
173597
173598
173599
173600
173601
173602
173603
173604
173605
173606
173607
173608
173609
173610
......
174476
174477
174478
174479
174480
174481
174482
174483
174484
174485
174486
174487
174488
174489
174490
......
174504
174505
174506
174507
174508
174509
174510
174511
174512
174513
174514
174515
174516
174517
174518
......
174839
174840
174841
174842
174843
174844
174845
174846
174847
174848
174849
174850
174851
174852
174853
......
174856
174857
174858
174859
174860
174861
174862
174863
174864
174865
174866
174867
174868
174869
174870
......
174872
174873
174874
174875
174876
174877
174878
174879
174880
174881
174882
174883
174884
174885
174886
174887
174888
174889
174890
174891
174892
174893
174894
174895
174896
174897
......
174902
174903
174904
174905
174906
174907
174908
174909
174910
174911
174912
174913
174914
174915
174916
174917
174918
174919
174920
174921
174922
174923
174924
174925
174926
174927
174928
174929
174930
174931
174932
174933
174934
174935
174936
174937
......
174952
174953
174954
174955
174956
174957
174958
174959
174960
174961
174962
174963
174964
174965
174966
......
177184
177185
177186
177187
177188
177189
177190
177191
177192
177193
177194
177195
177196
177197
177198
......
178528
178529
178530
178531
178532
178533
178534

178535
178536
178537
178538
178539
178540
178541
......
178585
178586
178587
178588
178589
178590
178591

178592
178593
178594
178595
178596
178597
178598
178599
178600
178601
178602
178603
178604
......
178704
178705
178706
178707
178708
178709
178710
178711
178712
178713
178714
178715
178716
178717
178718
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/******************************************************************************
** This file is an amalgamation of many separate C source files from SQLite
** version 3.14.1.  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        "3.14.1"
#define SQLITE_VERSION_NUMBER 3014001
#define SQLITE_SOURCE_ID      "2016-08-11 18:53:32 a12d8059770df4bca59e321c266410344242bf7b"

/*
** 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_STDCALL sqlite3_libversion(void);
SQLITE_API const char *SQLITE_STDCALL sqlite3_sourceid(void);
SQLITE_API int SQLITE_STDCALL 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_STDCALL sqlite3_compileoption_used(const char *zOptName);
SQLITE_API const char *SQLITE_STDCALL 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_STDCALL 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_STDCALL sqlite3_close(sqlite3*);
SQLITE_API int SQLITE_STDCALL 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 (*sqlite3_callback)(void*,int,char**, char**);
................................................................................
**      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_STDCALL sqlite3_exec(
  sqlite3*,                                  /* An open database */
  const char *sql,                           /* SQL to be evaluated */
  int (*callback)(void*,int,char**,char**),  /* Callback function */
  void *,                                    /* 1st argument to callback */
  char **errmsg                              /* Error msg written here */
);

................................................................................
** 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()].
*/
................................................................................
** (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_STDCALL sqlite3_initialize(void);
SQLITE_API int SQLITE_STDCALL sqlite3_shutdown(void);
SQLITE_API int SQLITE_STDCALL sqlite3_os_init(void);
SQLITE_API int SQLITE_STDCALL 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.
**
................................................................................
** 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_complete(const char *sql);
SQLITE_API int SQLITE_STDCALL 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_STDCALL sqlite3_busy_handler(sqlite3*,int(*)(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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_vmprintf(const char*, va_list);
SQLITE_API char *SQLITE_CDECL sqlite3_snprintf(int,char*,const char*, ...);
SQLITE_API char *SQLITE_STDCALL 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_STDCALL sqlite3_malloc(int);
SQLITE_API void *SQLITE_STDCALL sqlite3_malloc64(sqlite3_uint64);
SQLITE_API void *SQLITE_STDCALL sqlite3_realloc(void*, int);
SQLITE_API void *SQLITE_STDCALL sqlite3_realloc64(void*, sqlite3_uint64);
SQLITE_API void SQLITE_STDCALL sqlite3_free(void*);
SQLITE_API sqlite3_uint64 SQLITE_STDCALL 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_STDCALL sqlite3_memory_used(void);
SQLITE_API sqlite3_int64 SQLITE_STDCALL 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_STDCALL 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_STDCALL sqlite3_set_authorizer(
  sqlite3*,
  int (*xAuth)(void*,int,const char*,const char*,const char*,const char*),
  void *pUserData
);

/*
** CAPI3REF: Authorizer Return Codes
................................................................................
** 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_STDCALL sqlite3_trace(sqlite3*,
   void(*xTrace)(void*,const char*), void*);
SQLITE_API SQLITE_DEPRECATED void *SQLITE_STDCALL sqlite3_profile(sqlite3*,
   void(*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
................................................................................
** ^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_STDCALL sqlite3_trace_v2(
  sqlite3*,
  unsigned uMask,
  int(*xCallback)(unsigned,void*,void*,void*),
  void *pCtx
);

/*
................................................................................
**
** 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_STDCALL sqlite3_progress_handler(sqlite3*, int, int(*)(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_STDCALL sqlite3_open(
  const char *filename,   /* Database filename (UTF-8) */
  sqlite3 **ppDb          /* OUT: SQLite db handle */
);
SQLITE_API int SQLITE_STDCALL sqlite3_open16(
  const void *filename,   /* Database filename (UTF-16) */
  sqlite3 **ppDb          /* OUT: SQLite db handle */
);
SQLITE_API int SQLITE_STDCALL 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_STDCALL sqlite3_uri_parameter(const char *zFilename, const char *zParam);
SQLITE_API int SQLITE_STDCALL sqlite3_uri_boolean(const char *zFile, const char *zParam, int bDefault);
SQLITE_API sqlite3_int64 SQLITE_STDCALL 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_STDCALL sqlite3_errcode(sqlite3 *db);
SQLITE_API int SQLITE_STDCALL sqlite3_extended_errcode(sqlite3 *db);
SQLITE_API const char *SQLITE_STDCALL sqlite3_errmsg(sqlite3*);
SQLITE_API const void *SQLITE_STDCALL sqlite3_errmsg16(sqlite3*);
SQLITE_API const char *SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_sql(sqlite3_stmt *pStmt);
SQLITE_API char *SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_bind_blob(sqlite3_stmt*, int, const void*, int n, void(*)(void*));
SQLITE_API int SQLITE_STDCALL sqlite3_bind_blob64(sqlite3_stmt*, int, const void*, sqlite3_uint64,
                        void(*)(void*));
SQLITE_API int SQLITE_STDCALL sqlite3_bind_double(sqlite3_stmt*, int, double);
SQLITE_API int SQLITE_STDCALL sqlite3_bind_int(sqlite3_stmt*, int, int);
SQLITE_API int SQLITE_STDCALL sqlite3_bind_int64(sqlite3_stmt*, int, sqlite3_int64);
SQLITE_API int SQLITE_STDCALL sqlite3_bind_null(sqlite3_stmt*, int);
SQLITE_API int SQLITE_STDCALL sqlite3_bind_text(sqlite3_stmt*,int,const char*,int,void(*)(void*));
SQLITE_API int SQLITE_STDCALL sqlite3_bind_text16(sqlite3_stmt*, int, const void*, int, void(*)(void*));
SQLITE_API int SQLITE_STDCALL sqlite3_bind_text64(sqlite3_stmt*, int, const char*, sqlite3_uint64,
                         void(*)(void*), unsigned char encoding);
SQLITE_API int SQLITE_STDCALL sqlite3_bind_value(sqlite3_stmt*, int, const sqlite3_value*);
SQLITE_API int SQLITE_STDCALL sqlite3_bind_zeroblob(sqlite3_stmt*, int, int n);
SQLITE_API int SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_column_name(sqlite3_stmt*, int N);
SQLITE_API const void *SQLITE_STDCALL 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_STDCALL sqlite3_column_database_name(sqlite3_stmt*,int);
SQLITE_API const void *SQLITE_STDCALL sqlite3_column_database_name16(sqlite3_stmt*,int);
SQLITE_API const char *SQLITE_STDCALL sqlite3_column_table_name(sqlite3_stmt*,int);
SQLITE_API const void *SQLITE_STDCALL sqlite3_column_table_name16(sqlite3_stmt*,int);
SQLITE_API const char *SQLITE_STDCALL sqlite3_column_origin_name(sqlite3_stmt*,int);
SQLITE_API const void *SQLITE_STDCALL 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_STDCALL sqlite3_column_decltype(sqlite3_stmt*,int);
SQLITE_API const void *SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_column_blob(sqlite3_stmt*, int iCol);
SQLITE_API int SQLITE_STDCALL sqlite3_column_bytes(sqlite3_stmt*, int iCol);
SQLITE_API int SQLITE_STDCALL sqlite3_column_bytes16(sqlite3_stmt*, int iCol);
SQLITE_API double SQLITE_STDCALL sqlite3_column_double(sqlite3_stmt*, int iCol);
SQLITE_API int SQLITE_STDCALL sqlite3_column_int(sqlite3_stmt*, int iCol);
SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_column_int64(sqlite3_stmt*, int iCol);
SQLITE_API const unsigned char *SQLITE_STDCALL sqlite3_column_text(sqlite3_stmt*, int iCol);
SQLITE_API const void *SQLITE_STDCALL sqlite3_column_text16(sqlite3_stmt*, int iCol);
SQLITE_API int SQLITE_STDCALL sqlite3_column_type(sqlite3_stmt*, int iCol);
SQLITE_API sqlite3_value *SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_create_function(
  sqlite3 *db,
  const char *zFunctionName,
  int nArg,
  int eTextRep,
  void *pApp,
  void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
  void (*xStep)(sqlite3_context*,int,sqlite3_value**),
  void (*xFinal)(sqlite3_context*)
);
SQLITE_API int SQLITE_STDCALL sqlite3_create_function16(
  sqlite3 *db,
  const void *zFunctionName,
  int nArg,
  int eTextRep,
  void *pApp,
  void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
  void (*xStep)(sqlite3_context*,int,sqlite3_value**),
  void (*xFinal)(sqlite3_context*)
);
SQLITE_API int SQLITE_STDCALL sqlite3_create_function_v2(
  sqlite3 *db,
  const char *zFunctionName,
  int nArg,
  int eTextRep,
  void *pApp,
  void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
  void (*xStep)(sqlite3_context*,int,sqlite3_value**),
................................................................................
** 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_STDCALL sqlite3_aggregate_count(sqlite3_context*);
SQLITE_API SQLITE_DEPRECATED int SQLITE_STDCALL sqlite3_expired(sqlite3_stmt*);
SQLITE_API SQLITE_DEPRECATED int SQLITE_STDCALL sqlite3_transfer_bindings(sqlite3_stmt*, sqlite3_stmt*);
SQLITE_API SQLITE_DEPRECATED int SQLITE_STDCALL sqlite3_global_recover(void);
SQLITE_API SQLITE_DEPRECATED void SQLITE_STDCALL sqlite3_thread_cleanup(void);
SQLITE_API SQLITE_DEPRECATED int SQLITE_STDCALL sqlite3_memory_alarm(void(*)(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_STDCALL sqlite3_value_blob(sqlite3_value*);
SQLITE_API int SQLITE_STDCALL sqlite3_value_bytes(sqlite3_value*);
SQLITE_API int SQLITE_STDCALL sqlite3_value_bytes16(sqlite3_value*);
SQLITE_API double SQLITE_STDCALL sqlite3_value_double(sqlite3_value*);
SQLITE_API int SQLITE_STDCALL sqlite3_value_int(sqlite3_value*);
SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_value_int64(sqlite3_value*);
SQLITE_API const unsigned char *SQLITE_STDCALL sqlite3_value_text(sqlite3_value*);
SQLITE_API const void *SQLITE_STDCALL sqlite3_value_text16(sqlite3_value*);
SQLITE_API const void *SQLITE_STDCALL sqlite3_value_text16le(sqlite3_value*);
SQLITE_API const void *SQLITE_STDCALL sqlite3_value_text16be(sqlite3_value*);
SQLITE_API int SQLITE_STDCALL sqlite3_value_type(sqlite3_value*);
SQLITE_API int SQLITE_STDCALL 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_STDCALL 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_STDCALL sqlite3_value_dup(const sqlite3_value*);
SQLITE_API void SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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
................................................................................
** ^(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_STDCALL sqlite3_get_auxdata(sqlite3_context*, int N);
SQLITE_API void SQLITE_STDCALL sqlite3_set_auxdata(sqlite3_context*, int N, void*, void (*)(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
................................................................................
** [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_STDCALL sqlite3_result_blob(sqlite3_context*, const void*, int, void(*)(void*));
SQLITE_API void SQLITE_STDCALL sqlite3_result_blob64(sqlite3_context*,const void*,
                           sqlite3_uint64,void(*)(void*));
SQLITE_API void SQLITE_STDCALL sqlite3_result_double(sqlite3_context*, double);
SQLITE_API void SQLITE_STDCALL sqlite3_result_error(sqlite3_context*, const char*, int);
SQLITE_API void SQLITE_STDCALL sqlite3_result_error16(sqlite3_context*, const void*, int);
SQLITE_API void SQLITE_STDCALL sqlite3_result_error_toobig(sqlite3_context*);
SQLITE_API void SQLITE_STDCALL sqlite3_result_error_nomem(sqlite3_context*);
SQLITE_API void SQLITE_STDCALL sqlite3_result_error_code(sqlite3_context*, int);
SQLITE_API void SQLITE_STDCALL sqlite3_result_int(sqlite3_context*, int);
SQLITE_API void SQLITE_STDCALL sqlite3_result_int64(sqlite3_context*, sqlite3_int64);
SQLITE_API void SQLITE_STDCALL sqlite3_result_null(sqlite3_context*);
SQLITE_API void SQLITE_STDCALL sqlite3_result_text(sqlite3_context*, const char*, int, void(*)(void*));
SQLITE_API void SQLITE_STDCALL sqlite3_result_text64(sqlite3_context*, const char*,sqlite3_uint64,
                           void(*)(void*), unsigned char encoding);
SQLITE_API void SQLITE_STDCALL sqlite3_result_text16(sqlite3_context*, const void*, int, void(*)(void*));
SQLITE_API void SQLITE_STDCALL sqlite3_result_text16le(sqlite3_context*, const void*, int,void(*)(void*));
SQLITE_API void SQLITE_STDCALL sqlite3_result_text16be(sqlite3_context*, const void*, int,void(*)(void*));
SQLITE_API void SQLITE_STDCALL sqlite3_result_value(sqlite3_context*, sqlite3_value*);
SQLITE_API void SQLITE_STDCALL sqlite3_result_zeroblob(sqlite3_context*, int n);
SQLITE_API int SQLITE_STDCALL 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_STDCALL 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_STDCALL sqlite3_create_collation(
  sqlite3*, 
  const char *zName, 
  int eTextRep, 
  void *pArg,
  int(*xCompare)(void*,int,const void*,int,const void*)
);
SQLITE_API int SQLITE_STDCALL sqlite3_create_collation_v2(
  sqlite3*, 
  const char *zName, 
  int eTextRep, 
  void *pArg,
  int(*xCompare)(void*,int,const void*,int,const void*),
  void(*xDestroy)(void*)
);
SQLITE_API int SQLITE_STDCALL sqlite3_create_collation16(
  sqlite3*, 
  const void *zName,
  int eTextRep, 
  void *pArg,
  int(*xCompare)(void*,int,const void*,int,const void*)
);

................................................................................
** 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_STDCALL sqlite3_collation_needed(
  sqlite3*, 
  void*, 
  void(*)(void*,sqlite3*,int eTextRep,const char*)
);
SQLITE_API int SQLITE_STDCALL sqlite3_collation_needed16(
  sqlite3*, 
  void*,
  void(*)(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_STDCALL sqlite3_key(
  sqlite3 *db,                   /* Database to be rekeyed */
  const void *pKey, int nKey     /* The key */
);
SQLITE_API int SQLITE_STDCALL 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_STDCALL sqlite3_rekey(
  sqlite3 *db,                   /* Database to be rekeyed */
  const void *pKey, int nKey     /* The new key */
);
SQLITE_API int SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_commit_hook(sqlite3*, int(*)(void*), void*);
SQLITE_API void *SQLITE_STDCALL sqlite3_rollback_hook(sqlite3*, void(*)(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_STDCALL sqlite3_update_hook(
  sqlite3*, 
  void(*)(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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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
................................................................................
**     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_STDCALL 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_STDCALL 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 */
);

/*
................................................................................
**
** <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_STDCALL 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_STDCALL sqlite3_auto_extension(void(*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_STDCALL sqlite3_cancel_auto_extension(void(*xEntryPoint)(void));

/*
** CAPI3REF: Reset Automatic Extension Loading
**
** ^This interface disables all automatic extensions previously
** registered using [sqlite3_auto_extension()].
*/
SQLITE_API void SQLITE_STDCALL 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
................................................................................
** 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_STDCALL 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_STDCALL 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(*xDestroy)(void*)     /* Module destructor function */
);

................................................................................
** 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_vfs_find(const char *zVfsName);
SQLITE_API int SQLITE_STDCALL sqlite3_vfs_register(sqlite3_vfs*, int makeDflt);
SQLITE_API int SQLITE_STDCALL 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_STDCALL sqlite3_mutex_alloc(int);
SQLITE_API void SQLITE_STDCALL sqlite3_mutex_free(sqlite3_mutex*);
SQLITE_API void SQLITE_STDCALL sqlite3_mutex_enter(sqlite3_mutex*);
SQLITE_API int SQLITE_STDCALL sqlite3_mutex_try(sqlite3_mutex*);
SQLITE_API void SQLITE_STDCALL 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.
**
................................................................................
** 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_STDCALL sqlite3_mutex_held(sqlite3_mutex*);
SQLITE_API int SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag);
SQLITE_API int SQLITE_STDCALL 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_STDCALL 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_STDCALL 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.
................................................................................
** 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_STDCALL 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_STDCALL sqlite3_backup_step(sqlite3_backup *p, int nPage);
SQLITE_API int SQLITE_STDCALL sqlite3_backup_finish(sqlite3_backup *p);
SQLITE_API int SQLITE_STDCALL sqlite3_backup_remaining(sqlite3_backup *p);
SQLITE_API int SQLITE_STDCALL 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_STDCALL sqlite3_unlock_notify(
  sqlite3 *pBlocked,                          /* Waiting connection */
  void (*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_STDCALL sqlite3_stricmp(const char *, const char *);
SQLITE_API int SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_wal_hook(
  sqlite3*, 
  int(*)(void *,sqlite3*,const char*,int),
  void*
);

/*
** CAPI3REF: Configure an auto-checkpoint
................................................................................
**
** ^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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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.
**
................................................................................
** 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_STDCALL sqlite3_preupdate_hook(
  sqlite3 *db,
  void(*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_STDCALL sqlite3_preupdate_old(sqlite3 *, int, sqlite3_value **);
SQLITE_API SQLITE_EXPERIMENTAL int SQLITE_STDCALL sqlite3_preupdate_count(sqlite3 *);
SQLITE_API SQLITE_EXPERIMENTAL int SQLITE_STDCALL sqlite3_preupdate_depth(sqlite3 *);
SQLITE_API SQLITE_EXPERIMENTAL int SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_rtree_geometry_callback(
  sqlite3 *db,
  const char *zGeom,
  int (*xGeom)(sqlite3_rtree_geometry*, int, sqlite3_rtree_dbl*,int*),
  void *pContext
);


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

/*
** 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_STDCALL sqlite3_rtree_query_callback(
  sqlite3 *db,
  const char *zQueryFunc,
  int (*xQueryFunc)(sqlite3_rtree_query_info*),
  void *pContext,
  void (*xDestructor)(void*)
);

................................................................................
  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(*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 (*pp) with
................................................................................
** 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
................................................................................
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
................................................................................
#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_STDCALL sqlite3_wsd_init(int N, int J);
SQLITE_API void *SQLITE_STDCALL 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.
................................................................................
** 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag){
  sqlite3_int64 iCur = 0, iHwtr = 0;
  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 ){
................................................................................
  }
  return rc;
}

/*
** Query status information for a single database connection
*/
SQLITE_API int SQLITE_STDCALL 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 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_mutex_held(sqlite3_mutex *p){
  assert( p==0 || sqlite3GlobalConfig.mutex.xMutexHeld );
  return p==0 || sqlite3GlobalConfig.mutex.xMutexHeld(p);
}
SQLITE_API int SQLITE_STDCALL 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_STDCALL sqlite3_win32_is_nt(void); /* os_win.c */
SQLITE_API void SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_malloc(int n){
#ifndef SQLITE_OMIT_AUTOINIT
  if( sqlite3_initialize() ) return 0;
#endif
  return n<=0 ? 0 : sqlite3Malloc(n);
}
SQLITE_API void *SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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;
................................................................................
  sqlite3BeginBenignMalloc();
  if( pcache1.nInitPage>0 ){
    szBulk = pCache->szAlloc * (i64)pcache1.nInitPage;
  }else{
    szBulk = -1024 * (i64)pcache1.nInitPage;
  }
  if( szBulk > pCache->szAlloc*(i64)pCache->nMax ){
    szBulk = pCache->szAlloc*pCache->nMax;
  }
  zBulk = pCache->pBulk = sqlite3Malloc( szBulk );
  sqlite3EndBenignMalloc();
  if( zBulk ){
    int nBulk = sqlite3MallocSize(zBulk)/pCache->szAlloc;
    int i;
    for(i=0; i<nBulk; i++){
................................................................................
** 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.
................................................................................
  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_STDCALL 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_STDCALL 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 */
................................................................................
** 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_backup_pagecount(sqlite3_backup *p){
#ifdef SQLITE_ENABLE_API_ARMOR
  if( p==0 ){
    (void)SQLITE_MISUSE_BKPT;
    return 0;
  }
#endif
  return p->nPagecount;
................................................................................
/*
** 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_value_bytes(sqlite3_value *pVal){
  return sqlite3ValueBytes(pVal, SQLITE_UTF8);
}
SQLITE_API int SQLITE_STDCALL sqlite3_value_bytes16(sqlite3_value *pVal){
  return sqlite3ValueBytes(pVal, SQLITE_UTF16NATIVE);
}
SQLITE_API double SQLITE_STDCALL sqlite3_value_double(sqlite3_value *pVal){
  return sqlite3VdbeRealValue((Mem*)pVal);
}
SQLITE_API int SQLITE_STDCALL sqlite3_value_int(sqlite3_value *pVal){
  return (int)sqlite3VdbeIntValue((Mem*)pVal);
}
SQLITE_API sqlite_int64 SQLITE_STDCALL sqlite3_value_int64(sqlite3_value *pVal){
  return sqlite3VdbeIntValue((Mem*)pVal);
}
SQLITE_API unsigned int SQLITE_STDCALL sqlite3_value_subtype(sqlite3_value *pVal){
  Mem *pMem = (Mem*)pVal;
  return ((pMem->flags & MEM_Subtype) ? pMem->eSubtype : 0);
}
SQLITE_API const unsigned char *SQLITE_STDCALL sqlite3_value_text(sqlite3_value *pVal){
  return (const unsigned char *)sqlite3ValueText(pVal, SQLITE_UTF8);
}
#ifndef SQLITE_OMIT_UTF16
SQLITE_API const void *SQLITE_STDCALL sqlite3_value_text16(sqlite3_value* pVal){
  return sqlite3ValueText(pVal, SQLITE_UTF16NATIVE);
}
SQLITE_API const void *SQLITE_STDCALL sqlite3_value_text16be(sqlite3_value *pVal){
  return sqlite3ValueText(pVal, SQLITE_UTF16BE);
}
SQLITE_API const void *SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_result_double(sqlite3_context *pCtx, double rVal){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  sqlite3VdbeMemSetDouble(pCtx->pOut, rVal);
}
SQLITE_API void SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_result_int64(sqlite3_context *pCtx, i64 iVal){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  sqlite3VdbeMemSetInt64(pCtx->pOut, iVal);
}
SQLITE_API void SQLITE_STDCALL sqlite3_result_null(sqlite3_context *pCtx){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  sqlite3VdbeMemSetNull(pCtx->pOut);
}
SQLITE_API void SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_result_zeroblob(sqlite3_context *pCtx, int n){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  sqlite3VdbeMemSetZeroBlob(pCtx->pOut, n);
}
SQLITE_API int SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_column_bytes(sqlite3_stmt *pStmt, int i){
  int val = sqlite3_value_bytes( columnMem(pStmt,i) );
  columnMallocFailure(pStmt);
  return val;
}
SQLITE_API int SQLITE_STDCALL sqlite3_column_bytes16(sqlite3_stmt *pStmt, int i){
  int val = sqlite3_value_bytes16( columnMem(pStmt,i) );
  columnMallocFailure(pStmt);
  return val;
}
SQLITE_API double SQLITE_STDCALL sqlite3_column_double(sqlite3_stmt *pStmt, int i){
  double val = sqlite3_value_double( columnMem(pStmt,i) );
  columnMallocFailure(pStmt);
  return val;
}
SQLITE_API int SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_bind_int(sqlite3_stmt *p, int i, int iValue){
  return sqlite3_bind_int64(p, i, (i64)iValue);
}
SQLITE_API int SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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
................................................................................
        }
      }
      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{
................................................................................
      }

      /* 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_STDCALL 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;
................................................................................
    if( IN_DECLARE_VTAB ) zName[7]++;
  }

  /* 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_STDCALL sqlite3_strglob(const char *zGlobPattern, const char *zString){
  return patternCompare((u8*)zGlobPattern, (u8*)zString, &globInfo, '[')==0;
}

/*
** The sqlite3_strlike() interface.
*/
SQLITE_API int SQLITE_STDCALL 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.
................................................................................
  /* 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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( pTab!=0 && ALWAYS(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;
................................................................................
/*
** 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_STDCALL 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"));
................................................................................
        testcase( bRev );
        testcase( pIdx->aSortOrder[nEq]==SQLITE_SO_DESC );
        assert( (bRev & ~1)==0 );
        pLevel->iLikeRepCntr <<=1;
        pLevel->iLikeRepCntr |= bRev ^ (pIdx->aSortOrder[nEq]==SQLITE_SO_DESC);
      }
#endif
      if( pRangeStart==0
       && (j = pIdx->aiColumn[nEq])>=0 
       && pIdx->pTable->aCol[j].notNull==0
      ){
        bSeekPastNull = 1;

      }
    }
    assert( pRangeEnd==0 || (pRangeEnd->wtFlags & TERM_VNULL)==0 );

    /* If we are doing a reverse order scan on an ascending index, or
    ** a forward order scan on a descending index, interchange the 
    ** 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;
................................................................................
          }else{
            rev = revIdx ^ pOrderBy->a[i].sortOrder;
            if( rev ) *pRevMask |= MASKBIT(iLoop);
            revSet = 1;
          }
        }
        if( isMatch ){
          if( iColumn<0 ){
            testcase( distinctColumns==0 );
            distinctColumns = 1;
          }
          obSat |= MASKBIT(i);
        }else{
          /* No match found */
          if( j==0 || j<nKeyCol ){
................................................................................
        pWInfo->eDistinct = WHERE_DISTINCT_ORDERED;
      }
    }else{
      pWInfo->nOBSat = pFrom->isOrdered;
      pWInfo->revMask = pFrom->revLoop;
      if( pWInfo->nOBSat<=0 ){
        pWInfo->nOBSat = 0;

        if( nLoop>0 && (pFrom->aLoop[nLoop-1]->wsFlags & WHERE_ONEROW)==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;

          }
        }
      }
    }
    if( (pWInfo->wctrlFlags & WHERE_SORTBYGROUP)
        && pWInfo->nOBSat==pWInfo->pOrderBy->nExpr && nLoop>0
    ){
................................................................................
  ** 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_close(sqlite3 *db){ return sqlite3Close(db,0); }
SQLITE_API int SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3_open(
  const char *zFilename, 
  sqlite3 **ppDb 
){
  return openDatabase(zFilename, ppDb,
                      SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, 0);
}
SQLITE_API int SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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;
................................................................................
static int rtreeQueryStat1(sqlite3 *db, Rtree *pRtree){
  const char *zFmt = "SELECT stat FROM %Q.sqlite_stat1 WHERE tbl = '%q_rowid'";
  char *zSql;
  sqlite3_stmt *p;
  int rc;
  i64 nRow = 0;

  if( sqlite3_table_column_metadata(db,pRtree->zDb,"sqlite_stat1",
          0,0,0,0,0,0)==SQLITE_ERROR ){


    pRtree->nRowEst = RTREE_DEFAULT_ROWEST;
    return SQLITE_OK;

  }
  zSql = sqlite3_mprintf(zFmt, pRtree->zDb, pRtree->zName);
  if( zSql==0 ){
    rc = SQLITE_NOMEM;
  }else{
    rc = sqlite3_prepare_v2(db, zSql, -1, &p, 0);
    if( rc==SQLITE_OK ){
................................................................................
    }
  }
}

/*
** Register a new geometry function for use with the r-tree MATCH operator.
*/
SQLITE_API int SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3rbu_progress(sqlite3rbu *pRbu){
  return pRbu->nProgress;
}

/*
** Return permyriadage progress indications for the two main stages of
** an RBU update.
*/
SQLITE_API void SQLITE_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL 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_STDCALL sqlite3changegroup_delete(sqlite3_changegroup *pGrp){
  if( pGrp ){
    sessionDeleteTable(pGrp->pList);
    sqlite3_free(pGrp);
  }
}

/* 
** Combine two changesets together.
*/
SQLITE_API int SQLITE_STDCALL 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_STDCALL 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_STDCALL sqlite3_json_init(
  sqlite3 *db, 
  char **pzErrMsg, 
  const sqlite3_api_routines *pApi
){
  SQLITE_EXTENSION_INIT2(pApi);
  (void)pzErrMsg;  /* Unused parameter */
  return sqlite3Json1Init(db);
................................................................................

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); }
        break;
      case 1: /* expr ::= expr AND expr */
{
  fts5yylhsminor.fts5yy18 = sqlite3Fts5ParseNode(pParse, FTS5_AND, fts5yymsp[-2].minor.fts5yy18, fts5yymsp[0].minor.fts5yy18, 0);
}
  fts5yymsp[-2].minor.fts5yy18 = fts5yylhsminor.fts5yy18;
        break;
      case 2: /* expr ::= expr OR expr */
{
  fts5yylhsminor.fts5yy18 = sqlite3Fts5ParseNode(pParse, FTS5_OR, fts5yymsp[-2].minor.fts5yy18, fts5yymsp[0].minor.fts5yy18, 0);
}
  fts5yymsp[-2].minor.fts5yy18 = fts5yylhsminor.fts5yy18;
        break;
      case 3: /* expr ::= expr NOT expr */
{
  fts5yylhsminor.fts5yy18 = sqlite3Fts5ParseNode(pParse, FTS5_NOT, fts5yymsp[-2].minor.fts5yy18, fts5yymsp[0].minor.fts5yy18, 0);
}
  fts5yymsp[-2].minor.fts5yy18 = fts5yylhsminor.fts5yy18;
        break;
      case 4: /* expr ::= LP expr RP */
{fts5yymsp[-2].minor.fts5yy18 = fts5yymsp[-1].minor.fts5yy18;}
        break;
      case 5: /* expr ::= exprlist */
      case 6: /* exprlist ::= cnearset */ fts5yytestcase(fts5yyruleno==6);
{fts5yylhsminor.fts5yy18 = fts5yymsp[0].minor.fts5yy18;}
  fts5yymsp[0].minor.fts5yy18 = fts5yylhsminor.fts5yy18;
        break;
      case 7: /* exprlist ::= exprlist cnearset */
{
  fts5yylhsminor.fts5yy18 = sqlite3Fts5ParseImplicitAnd(pParse, fts5yymsp[-1].minor.fts5yy18, fts5yymsp[0].minor.fts5yy18);
}
  fts5yymsp[-1].minor.fts5yy18 = fts5yylhsminor.fts5yy18;
        break;
      case 8: /* cnearset ::= nearset */
{ 
  fts5yylhsminor.fts5yy18 = sqlite3Fts5ParseNode(pParse, FTS5_STRING, 0, 0, fts5yymsp[0].minor.fts5yy26); 
}
  fts5yymsp[0].minor.fts5yy18 = fts5yylhsminor.fts5yy18;
        break;
      case 9: /* cnearset ::= colset COLON nearset */
{ 
  sqlite3Fts5ParseSetColset(pParse, fts5yymsp[0].minor.fts5yy26, fts5yymsp[-2].minor.fts5yy3);
  fts5yylhsminor.fts5yy18 = sqlite3Fts5ParseNode(pParse, FTS5_STRING, 0, 0, fts5yymsp[0].minor.fts5yy26); 
}
  fts5yymsp[-2].minor.fts5yy18 = fts5yylhsminor.fts5yy18;
        break;





      case 10: /* colset ::= LCP colsetlist RCP */
{ fts5yymsp[-2].minor.fts5yy3 = fts5yymsp[-1].minor.fts5yy3; }
        break;
      case 11: /* colset ::= STRING */
{
  fts5yylhsminor.fts5yy3 = sqlite3Fts5ParseColset(pParse, 0, &fts5yymsp[0].minor.fts5yy0);
}
  fts5yymsp[0].minor.fts5yy3 = fts5yylhsminor.fts5yy3;
        break;






      case 12: /* colsetlist ::= colsetlist STRING */
{ 
  fts5yylhsminor.fts5yy3 = sqlite3Fts5ParseColset(pParse, fts5yymsp[-1].minor.fts5yy3, &fts5yymsp[0].minor.fts5yy0); }
  fts5yymsp[-1].minor.fts5yy3 = fts5yylhsminor.fts5yy3;
        break;
      case 13: /* colsetlist ::= STRING */
{ 
  fts5yylhsminor.fts5yy3 = sqlite3Fts5ParseColset(pParse, 0, &fts5yymsp[0].minor.fts5yy0); 
}
  fts5yymsp[0].minor.fts5yy3 = fts5yylhsminor.fts5yy3;
        break;
      case 14: /* nearset ::= phrase */
{ fts5yylhsminor.fts5yy26 = sqlite3Fts5ParseNearset(pParse, 0, fts5yymsp[0].minor.fts5yy11); }
  fts5yymsp[0].minor.fts5yy26 = fts5yylhsminor.fts5yy26;
        break;
      case 15: /* nearset ::= STRING LP nearphrases neardist_opt RP */
{
  sqlite3Fts5ParseNear(pParse, &fts5yymsp[-4].minor.fts5yy0);
  sqlite3Fts5ParseSetDistance(pParse, fts5yymsp[-2].minor.fts5yy26, &fts5yymsp[-1].minor.fts5yy0);
  fts5yylhsminor.fts5yy26 = fts5yymsp[-2].minor.fts5yy26;
}
  fts5yymsp[-4].minor.fts5yy26 = fts5yylhsminor.fts5yy26;
        break;
      case 16: /* nearphrases ::= phrase */
{ 
  fts5yylhsminor.fts5yy26 = sqlite3Fts5ParseNearset(pParse, 0, fts5yymsp[0].minor.fts5yy11); 
}
  fts5yymsp[0].minor.fts5yy26 = fts5yylhsminor.fts5yy26;
        break;
      case 17: /* nearphrases ::= nearphrases phrase */
{
  fts5yylhsminor.fts5yy26 = sqlite3Fts5ParseNearset(pParse, fts5yymsp[-1].minor.fts5yy26, fts5yymsp[0].minor.fts5yy11);
}
  fts5yymsp[-1].minor.fts5yy26 = fts5yylhsminor.fts5yy26;
        break;
      case 18: /* neardist_opt ::= */
{ fts5yymsp[1].minor.fts5yy0.p = 0; fts5yymsp[1].minor.fts5yy0.n = 0; }
        break;
      case 19: /* neardist_opt ::= COMMA STRING */
{ fts5yymsp[-1].minor.fts5yy0 = fts5yymsp[0].minor.fts5yy0; }
        break;
      case 20: /* phrase ::= phrase PLUS STRING star_opt */
{ 
  fts5yylhsminor.fts5yy11 = sqlite3Fts5ParseTerm(pParse, fts5yymsp[-3].minor.fts5yy11, &fts5yymsp[-1].minor.fts5yy0, fts5yymsp[0].minor.fts5yy20);
}
  fts5yymsp[-3].minor.fts5yy11 = fts5yylhsminor.fts5yy11;
        break;
      case 21: /* phrase ::= STRING star_opt */
{ 
  fts5yylhsminor.fts5yy11 = sqlite3Fts5ParseTerm(pParse, 0, &fts5yymsp[-1].minor.fts5yy0, fts5yymsp[0].minor.fts5yy20);
}
  fts5yymsp[-1].minor.fts5yy11 = fts5yylhsminor.fts5yy11;
        break;
      case 22: /* star_opt ::= STAR */
{ fts5yymsp[0].minor.fts5yy20 = 1; }
        break;
      case 23: /* star_opt ::= */
{ fts5yymsp[1].minor.fts5yy20 = 0; }
        break;
      default:
        break;
/********** End reduce actions ************************************************/
  };
  assert( fts5yyruleno<sizeof(fts5yyRuleInfo)/sizeof(fts5yyRuleInfo[0]) );
  fts5yygoto = fts5yyRuleInfo[fts5yyruleno].lhs;
................................................................................
          fprintf(fts5yyTraceFILE,"%sDiscard input token %s\n",
             fts5yyTracePrompt,fts5yyTokenName[fts5yymajor]);
        }
#endif
        fts5yy_destructor(fts5yypParser, (fts5YYCODETYPE)fts5yymajor, &fts5yyminorunion);
        fts5yymajor = fts5YYNOCODE;
      }else{
        while( fts5yypParser->fts5yytos >= &fts5yypParser->fts5yystack
            && fts5yymx != fts5YYERRORSYMBOL
            && (fts5yyact = fts5yy_find_reduce_action(
                        fts5yypParser->fts5yytos->stateno,
                        fts5YYERRORSYMBOL)) >= fts5YY_MIN_REDUCE
        ){
          fts5yy_pop_parser_stack(fts5yypParser);
        }
................................................................................
      rc = fts5CInstIterNext(&p->iter);
    }
  }

  if( p->iRangeEnd>0 && iPos==p->iRangeEnd ){
    fts5HighlightAppend(&rc, p, &p->zIn[p->iOff], iEndOff - p->iOff);
    p->iOff = iEndOff;
    if( iPos<p->iter.iEnd ){
      fts5HighlightAppend(&rc, p, p->zClose, -1);
    }
  }

  return rc;
}

................................................................................
  if( rc!=SQLITE_OK ){
    sqlite3_result_error_code(pCtx, rc);
  }
}
/*
** End of highlight() implementation.
**************************************************************************/

















































































































/*
** Implementation of snippet() function.
*/
static void fts5SnippetFunction(
  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
  Fts5Context *pFts,              /* First arg to pass to pApi functions */
................................................................................
  int nToken;                     /* 5th argument to snippet() */
  int nInst = 0;                  /* Number of instance matches this row */
  int i;                          /* Used to iterate through instances */
  int nPhrase;                    /* Number of phrases in query */
  unsigned char *aSeen;           /* Array of "seen instance" flags */
  int iBestCol;                   /* Column containing best snippet */
  int iBestStart = 0;             /* First token of best snippet */
  int iBestLast;                  /* Last token of best snippet */
  int nBestScore = 0;             /* Score of best snippet */
  int nColSize = 0;               /* Total size of iBestCol in tokens */



  if( nVal!=5 ){
    const char *zErr = "wrong number of arguments to function snippet()";
    sqlite3_result_error(pCtx, zErr, -1);
    return;
  }


  memset(&ctx, 0, sizeof(HighlightContext));
  iCol = sqlite3_value_int(apVal[0]);
  ctx.zOpen = (const char*)sqlite3_value_text(apVal[1]);
  ctx.zClose = (const char*)sqlite3_value_text(apVal[2]);
  zEllips = (const char*)sqlite3_value_text(apVal[3]);
  nToken = sqlite3_value_int(apVal[4]);
  iBestLast = nToken-1;

  iBestCol = (iCol>=0 ? iCol : 0);
  nPhrase = pApi->xPhraseCount(pFts);
  aSeen = sqlite3_malloc(nPhrase);
  if( aSeen==0 ){
    rc = SQLITE_NOMEM;
  }

  if( rc==SQLITE_OK ){
    rc = pApi->xInstCount(pFts, &nInst);
  }


















  for(i=0; rc==SQLITE_OK && i<nInst; i++){
    int ip, iSnippetCol, iStart;
    memset(aSeen, 0, nPhrase);
    rc = pApi->xInst(pFts, i, &ip, &iSnippetCol, &iStart);
    if( rc==SQLITE_OK && (iCol<0 || iSnippetCol==iCol) ){

      int nScore = 1000;
      int iLast = iStart - 1 + pApi->xPhraseSize(pFts, ip);
      int j;
      aSeen[ip] = 1;

      for(j=i+1; rc==SQLITE_OK && j<nInst; j++){
        int ic; int io; int iFinal;
        rc = pApi->xInst(pFts, j, &ip, &ic, &io);
        iFinal = io + pApi->xPhraseSize(pFts, ip) - 1;





        if( rc==SQLITE_OK && ic==iSnippetCol && iLast<iStart+nToken ){
          nScore += aSeen[ip] ? 1000 : 1;
          aSeen[ip] = 1;
          if( iFinal>iLast ) iLast = iFinal;




        }
      }












      if( rc==SQLITE_OK && nScore>nBestScore ){

        iBestCol = iSnippetCol;
        iBestStart = iStart;
        iBestLast = iLast;
        nBestScore = nScore;

      }
    }
  }

  if( rc==SQLITE_OK ){
    rc = pApi->xColumnSize(pFts, iBestCol, &nColSize);
  }


  if( rc==SQLITE_OK ){
    rc = pApi->xColumnText(pFts, iBestCol, &ctx.zIn, &ctx.nIn);
  }



  if( ctx.zIn ){
    if( rc==SQLITE_OK ){
      rc = fts5CInstIterInit(pApi, pFts, iBestCol, &ctx.iter);
    }

    if( (iBestStart+nToken-1)>iBestLast ){
      iBestStart -= (iBestStart+nToken-1-iBestLast) / 2;
    }
    if( iBestStart+nToken>nColSize ){
      iBestStart = nColSize - nToken;
    }
    if( iBestStart<0 ) iBestStart = 0;

    ctx.iRangeStart = iBestStart;
    ctx.iRangeEnd = iBestStart + nToken - 1;

    if( iBestStart>0 ){
      fts5HighlightAppend(&rc, &ctx, zEllips, -1);
    }







    if( rc==SQLITE_OK ){
      rc = pApi->xTokenize(pFts, ctx.zIn, ctx.nIn, (void*)&ctx,fts5HighlightCb);
    }
    if( ctx.iRangeEnd>=(nColSize-1) ){
      fts5HighlightAppend(&rc, &ctx, &ctx.zIn[ctx.iOff], ctx.nIn - ctx.iOff);
    }else{
      fts5HighlightAppend(&rc, &ctx, zEllips, -1);
    }

    if( rc==SQLITE_OK ){
      sqlite3_result_text(pCtx, (const char*)ctx.zOut, -1, SQLITE_TRANSIENT);
    }else{
      sqlite3_result_error_code(pCtx, rc);
    }
    sqlite3_free(ctx.zOut);
  }
  sqlite3_free(aSeen);

}

/************************************************************************/

/*
** The first time the bm25() function is called for a query, an instance
** of the following structure is allocated and populated.
................................................................................
    case ')':  tok = FTS5_RP;    break;
    case '{':  tok = FTS5_LCP;   break;
    case '}':  tok = FTS5_RCP;   break;
    case ':':  tok = FTS5_COLON; break;
    case ',':  tok = FTS5_COMMA; break;
    case '+':  tok = FTS5_PLUS;  break;
    case '*':  tok = FTS5_STAR;  break;

    case '\0': tok = FTS5_EOF;   break;

    case '"': {
      const char *z2;
      tok = FTS5_STRING;

      for(z2=&z[1]; 1; z2++){
................................................................................
static int fts5ExprNearInitAll(
  Fts5Expr *pExpr,
  Fts5ExprNode *pNode
){
  Fts5ExprNearset *pNear = pNode->pNear;
  int i, j;
  int rc = SQLITE_OK;


  assert( pNode->bNomatch==0 );
  for(i=0; rc==SQLITE_OK && i<pNear->nPhrase; i++){
    Fts5ExprPhrase *pPhrase = pNear->apPhrase[i];
    for(j=0; j<pPhrase->nTerm; j++){
      Fts5ExprTerm *pTerm = &pPhrase->aTerm[j];
      Fts5ExprTerm *p;
      int bEof = 1;

      for(p=pTerm; p && rc==SQLITE_OK; p=p->pSynonym){
        if( p->pIter ){
          sqlite3Fts5IterClose(p->pIter);
          p->pIter = 0;
        }
        rc = sqlite3Fts5IndexQuery(
................................................................................
        );
        assert( rc==SQLITE_OK || p->pIter==0 );
        if( p->pIter && 0==sqlite3Fts5IterEof(p->pIter) ){
          bEof = 0;
        }
      }

      if( bEof ){
        pNode->bEof = 1;
        return rc;
      }

    }
  }


  return rc;
}

/*
** If pExpr is an ASC iterator, this function returns a value with the
** same sign as:
**
................................................................................
static int sqlite3Fts5ExprClonePhrase(
  Fts5Expr *pExpr, 
  int iPhrase, 
  Fts5Expr **ppNew
){
  int rc = SQLITE_OK;             /* Return code */
  Fts5ExprPhrase *pOrig;          /* The phrase extracted from pExpr */
  int i;                          /* Used to iterate through phrase terms */
  Fts5Expr *pNew = 0;             /* Expression to return via *ppNew */
  TokenCtx sCtx = {0,0};          /* Context object for fts5ParseTokenize */

  pOrig = pExpr->apExprPhrase[iPhrase];
  pNew = (Fts5Expr*)sqlite3Fts5MallocZero(&rc, sizeof(Fts5Expr));
  if( rc==SQLITE_OK ){
    pNew->apExprPhrase = (Fts5ExprPhrase**)sqlite3Fts5MallocZero(&rc, 
................................................................................
  if( rc==SQLITE_OK ){
    pNew->pRoot->pNear = (Fts5ExprNearset*)sqlite3Fts5MallocZero(&rc, 
        sizeof(Fts5ExprNearset) + sizeof(Fts5ExprPhrase*));
  }
  if( rc==SQLITE_OK ){
    Fts5Colset *pColsetOrig = pOrig->pNode->pNear->pColset;
    if( pColsetOrig ){
      int nByte = sizeof(Fts5Colset) + pColsetOrig->nCol * sizeof(int);
      Fts5Colset *pColset = (Fts5Colset*)sqlite3Fts5MallocZero(&rc, nByte);
      if( pColset ){ 
        memcpy(pColset, pColsetOrig, nByte);
      }
      pNew->pRoot->pNear->pColset = pColset;
    }
  }



  for(i=0; rc==SQLITE_OK && i<pOrig->nTerm; i++){
    int tflags = 0;
    Fts5ExprTerm *p;
    for(p=&pOrig->aTerm[i]; p && rc==SQLITE_OK; p=p->pSynonym){
      const char *zTerm = p->zTerm;
      rc = fts5ParseTokenize((void*)&sCtx, tflags, zTerm, (int)strlen(zTerm),
          0, 0);
      tflags = FTS5_TOKEN_COLOCATED;
    }
    if( rc==SQLITE_OK ){
      sCtx.pPhrase->aTerm[i].bPrefix = pOrig->aTerm[i].bPrefix;
    }





  }

  if( rc==SQLITE_OK ){
    /* All the allocations succeeded. Put the expression object together. */
    pNew->pIndex = pExpr->pIndex;
    pNew->pConfig = pExpr->pConfig;
    pNew->nPhrase = 1;
................................................................................
    /* Check that the array is in order and contains no duplicate entries. */
    for(i=1; i<pNew->nCol; i++) assert( pNew->aiCol[i]>pNew->aiCol[i-1] );
#endif
  }

  return pNew;
}





























static Fts5Colset *sqlite3Fts5ParseColset(
  Fts5Parse *pParse,              /* Store SQLITE_NOMEM here if required */
  Fts5Colset *pColset,            /* Existing colset object */
  Fts5Token *p
){
  Fts5Colset *pRet = 0;
................................................................................
    p->nRead++;
  }

  assert( (pRet==0)==(p->rc!=SQLITE_OK) );
  return pRet;
}


/*
** Release a reference to data record returned by an earlier call to
** fts5DataRead().
*/
static void fts5DataRelease(Fts5Data *pData){
  sqlite3_free(pData);
}













static int fts5IndexPrepareStmt(
  Fts5Index *p,
  sqlite3_stmt **ppStmt,
  char *zSql
){
  if( p->rc==SQLITE_OK ){
................................................................................
  Fts5StructureSegment *pSeg = pIter->pSeg;
  fts5DataRelease(pIter->pLeaf);
  pIter->iLeafPgno++;
  if( pIter->pNextLeaf ){
    pIter->pLeaf = pIter->pNextLeaf;
    pIter->pNextLeaf = 0;
  }else if( pIter->iLeafPgno<=pSeg->pgnoLast ){
    pIter->pLeaf = fts5DataRead(p, 
        FTS5_SEGMENT_ROWID(pSeg->iSegid, pIter->iLeafPgno)
    );
  }else{
    pIter->pLeaf = 0;
  }
  pLeaf = pIter->pLeaf;

................................................................................
      if( (iOff = fts5LeafFirstRowidOff(pLeaf)) && iOff<pLeaf->szLeaf ){
        iOff += sqlite3Fts5GetVarint(&pLeaf->p[iOff], (u64*)&pIter->iRowid);
        pIter->iLeafOffset = iOff;

        if( pLeaf->nn>pLeaf->szLeaf ){
          pIter->iPgidxOff = pLeaf->szLeaf + fts5GetVarint32(
              &pLeaf->p[pLeaf->szLeaf], pIter->iEndofDoclist
              );
        }

      }
      else if( pLeaf->nn>pLeaf->szLeaf ){
        pIter->iPgidxOff = pLeaf->szLeaf + fts5GetVarint32(
            &pLeaf->p[pLeaf->szLeaf], iOff
            );
        pIter->iLeafOffset = iOff;
        pIter->iEndofDoclist = iOff;
................................................................................
      bEndOfPage = 1;
      break;
    }

    iPgidx += fts5GetVarint32(&a[iPgidx], nKeep);
    iTermOff += nKeep;
    iOff = iTermOff;






    /* Read the nKeep field of the next term. */
    fts5FastGetVarint32(a, iOff, nKeep);
  }

 search_failed:
  if( bGe==0 ){
................................................................................
    ** Fts5Iter.poslist buffer and then set the output pointer to point
    ** to this buffer.  */
    fts5BufferZero(&pIter->poslist);
    fts5SegiterPoslist(pIter->pIndex, pSeg, 0, &pIter->poslist);
    pIter->base.pData = pIter->poslist.p;
  }
}










/*
** xSetOutputs callback used by detail=col when there is a column filter
** and there are 100 or more columns. Also called as a fallback from
** fts5IterSetOutputs_Col100 if the column-list spans more than one page.
*/
static void fts5IterSetOutputs_Col(Fts5Iter *pIter, Fts5SegIter *pSeg){
................................................................................
    if( pConfig->eDetail==FTS5_DETAIL_NONE ){
      pIter->xSetOutputs = fts5IterSetOutputs_None;
    }

    else if( pIter->pColset==0 ){
      pIter->xSetOutputs = fts5IterSetOutputs_Nocolset;
    }





    else if( pConfig->eDetail==FTS5_DETAIL_FULL ){
      pIter->xSetOutputs = fts5IterSetOutputs_Full;
    }

    else{
      assert( pConfig->eDetail==FTS5_DETAIL_COLUMNS );
................................................................................
static void fts5SourceIdFunc(
  sqlite3_context *pCtx,          /* Function call context */
  int nArg,                       /* Number of args */
  sqlite3_value **apUnused        /* Function arguments */
){
  assert( nArg==0 );
  UNUSED_PARAM2(nArg, apUnused);
  sqlite3_result_text(pCtx, "fts5: 2016-08-11 18:53:32 a12d8059770df4bca59e321c266410344242bf7b", -1, SQLITE_TRANSIENT);
}

static int fts5Init(sqlite3 *db){
  static const sqlite3_module fts5Mod = {
    /* iVersion      */ 2,
    /* xCreate       */ fts5CreateMethod,
    /* xConnect      */ fts5ConnectMethod,
................................................................................
** sqlite3Fts5Init() is omitted and the two standard entry points
** sqlite3_fts_init() and sqlite3_fts5_init() defined instead.
*/
#ifndef SQLITE_CORE
#ifdef _WIN32
__declspec(dllexport)
#endif
SQLITE_API int SQLITE_STDCALL sqlite3_fts_init(
  sqlite3 *db,
  char **pzErrMsg,
  const sqlite3_api_routines *pApi
){
  SQLITE_EXTENSION_INIT2(pApi);
  (void)pzErrMsg;  /* Unused parameter */
  return fts5Init(db);
}

#ifdef _WIN32
__declspec(dllexport)
#endif
SQLITE_API int SQLITE_STDCALL sqlite3_fts5_init(
  sqlite3 *db,
  char **pzErrMsg,
  const sqlite3_api_routines *pApi
){
  SQLITE_EXTENSION_INIT2(pApi);
  (void)pzErrMsg;  /* Unused parameter */
  return fts5Init(db);
................................................................................
    }
    if( iTermLe>=0 ){
      idxNum |= FTS5_VOCAB_TERM_LE;
      pInfo->aConstraintUsage[iTermLe].argvIndex = ++nArg;
      pInfo->estimatedCost = pInfo->estimatedCost / 2;
    }
  }

  pInfo->idxNum = idxNum;












  return SQLITE_OK;
}

/*
** Implementation of xOpen method.
*/
static int fts5VocabOpenMethod(


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