SQLite

Check-in [be0df0a65f]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:Merge latest trunk changes with this branch.
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | server-process-edition
Files: files | file ages | folders
SHA3-256: be0df0a65fc781fde6e94c9370b4819c703d3b270c707dd59e587a2a6f36c9f4
User & Date: dan 2017-07-19 18:54:21.843
Context
2017-07-24
19:23
Only open a db in server-mode if there is a directory named "db-journal" in the file-system and the VFS is an exclusive locking VFS. (check-in: e77d29f644 user: dan tags: server-process-edition)
2017-07-19
18:54
Merge latest trunk changes with this branch. (check-in: be0df0a65f user: dan tags: server-process-edition)
18:01
Remove some 'breakpoint' commands in test files. (check-in: d14fc621e9 user: mistachkin tags: trunk)
2017-07-14
08:15
Add simple tests for "PRAGMA freelist_format". (check-in: 98a36f4cf1 user: dan tags: server-process-edition)
Changes
Side-by-Side Diff Ignore Whitespace Patch
Changes to Makefile.in.
431
432
433
434
435
436
437

438
439
440
441
442
443
444
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445







+







  $(TOP)/ext/misc/nextchar.c \
  $(TOP)/ext/misc/percentile.c \
  $(TOP)/ext/misc/regexp.c \
  $(TOP)/ext/misc/remember.c \
  $(TOP)/ext/misc/series.c \
  $(TOP)/ext/misc/spellfix.c \
  $(TOP)/ext/misc/totype.c \
  $(TOP)/ext/misc/unionvtab.c \
  $(TOP)/ext/misc/wholenumber.c

# Source code to the library files needed by the test fixture
#
TESTSRC2 = \
  $(TOP)/src/attach.c \
  $(TOP)/src/backup.c \
480
481
482
483
484
485
486
487


488
489
490
491
492
493
494
481
482
483
484
485
486
487

488
489
490
491
492
493
494
495
496







-
+
+







  $(TOP)/ext/fts3/fts3.c \
  $(TOP)/ext/fts3/fts3_aux.c \
  $(TOP)/ext/fts3/fts3_expr.c \
  $(TOP)/ext/fts3/fts3_term.c \
  $(TOP)/ext/fts3/fts3_tokenizer.c \
  $(TOP)/ext/fts3/fts3_write.c \
  $(TOP)/ext/async/sqlite3async.c \
  $(TOP)/ext/session/sqlite3session.c 
  $(TOP)/ext/session/sqlite3session.c \
  $(TOP)/ext/misc/stmt.c 

# Header files used by all library source files.
#
HDR = \
   $(TOP)/src/btree.h \
   $(TOP)/src/btreeInt.h \
   $(TOP)/src/hash.h \
Changes to Makefile.msc.
1414
1415
1416
1417
1418
1419
1420

1421
1422
1423
1424
1425
1426
1427
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428







+







  $(TOP)\ext\misc\nextchar.c \
  $(TOP)\ext\misc\percentile.c \
  $(TOP)\ext\misc\regexp.c \
  $(TOP)\ext\misc\remember.c \
  $(TOP)\ext\misc\series.c \
  $(TOP)\ext\misc\spellfix.c \
  $(TOP)\ext\misc\totype.c \
  $(TOP)\ext\misc\unionvtab.c \
  $(TOP)\ext\misc\wholenumber.c

# Source code to the library files needed by the test fixture
# (non-amalgamation)
#
TESTSRC2 = \
  $(SRC00) \
2262
2263
2264
2265
2266
2267
2268

2269
2270
2271
2272
2273
2274
2275
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277







+







	del /Q mkkeywordhash.* keywordhash.h 2>NUL
	del /Q notasharedlib.* 2>NUL
	-rmdir /Q/S .deps 2>NUL
	-rmdir /Q/S .libs 2>NUL
	-rmdir /Q/S tsrc 2>NUL
	del /Q .target_source 2>NUL
	del /Q tclsqlite3.exe $(SQLITETCLH) $(SQLITETCLDECLSH) 2>NUL
	del /Q lsm.dll lsmtest.exe 2>NUL
	del /Q testloadext.dll 2>NUL
	del /Q testfixture.exe test.db 2>NUL
	del /Q LogEst.exe fts3view.exe rollback-test.exe showdb.exe dbdump.exe 2>NUL
	del /Q changeset.exe 2>NUL
	del /Q showjournal.exe showstat4.exe showwal.exe speedtest1.exe 2>NUL
	del /Q mptester.exe wordcount.exe rbu.exe srcck1.exe 2>NUL
	del /Q sqlite3.c sqlite3-*.c 2>NUL
Changes to README.md.
30
31
32
33
34
35
36
37



38
39
40
41
42
43
44
30
31
32
33
34
35
36

37
38
39
40
41
42
43
44
45
46







-
+
+
+







     to locate the check-in desired, click on its information page link,
     then click on the "Tarball" or "ZIP Archive" links on the information
     page.

If you do want to use Fossil to check out the source tree, 
first install Fossil version 2.0 or later.
(Source tarballs and precompiled binaries available
[here](https://www.fossil-scm.org/fossil/uv/download.html).)
[here](https://www.fossil-scm.org/fossil/uv/download.html).  Fossil is
a stand-alone program.  To install, simply download or build the single 
executable file and put that file someplace on your $PATH.)
Then run commands like this:

        mkdir ~/sqlite
        cd ~/sqlite
        fossil clone https://www.sqlite.org/src sqlite.fossil
        fossil open sqlite.fossil
    
102
103
104
105
106
107
108
109
110
111
112
113
114










115
116
117
118
119
120



121
122
123
124
125
126
127
128
104
105
106
107
108
109
110






111
112
113
114
115
116
117
118
119
120
121
122
123



124
125
126

127
128
129
130
131
132
133







-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+



-
-
-
+
+
+
-







SQLite does not require [Tcl](http://www.tcl.tk/) to run, but a Tcl installation
is required by the makefiles (including those for MSVC).  SQLite contains
a lot of generated code and Tcl is used to do much of that code generation.
The makefiles also require AWK.

## Source Code Tour

Most of the core source files are in the **src/** subdirectory.  But
src/ also contains files used to build the "testfixture" test harness;
those file all begin with "test".  And src/ contains the "shell.c" file
which is the main program for the "sqlite3.exe" command-line shell and
the "tclsqlite.c" file which implements the bindings to SQLite from the
Tcl programming language.  (Historical note:  SQLite began as a Tcl
Most of the core source files are in the **src/** subdirectory.  The
**src/** folder also contains files used to build the "testfixture" test
harness. The names of the source files used by "testfixture" all begin
with "test".
The **src/** also contains the "shell.c" file
which is the main program for the "sqlite3.exe"
[command-line shell](https://sqlite.org/cli.html) and
the "tclsqlite.c" file which implements the
[TCL bindings](https://sqlite.org/tclsqlite.html) for SQLite.
(Historical note:  SQLite began as a Tcl
extension and only later escaped to the wild as an independent library.)

Test scripts and programs are found in the **test/** subdirectory.
There are other test suites for SQLite (see
[How SQLite Is Tested](http://www.sqlite.org/testing.html))
but those other test suites are
Addtional test code is found in other source repositories.
See [How SQLite Is Tested](http://www.sqlite.org/testing.html) for
additional information.
in separate source repositories.

The **ext/** subdirectory contains code for extensions.  The
Full-text search engine is in **ext/fts3**.  The R-Tree engine is in
**ext/rtree**.  The **ext/misc** subdirectory contains a number of
smaller, single-file extensions, such as a REGEXP operator.

The **tool/** subdirectory contains various scripts and programs used
138
139
140
141
142
143
144
145

146
147
148
149
150
151
152
153
154
155
156
157


158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177







178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195

196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212

213
214
215
216
217

218
219


220
221
222
223
224
225
226
227
228
229
230

231
232
233
234
235
236
237
143
144
145
146
147
148
149

150
151
152
153
154
155
156
157
158
159
160


161
162

163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205

206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222

223
224
225
226
227

228
229

230
231
232
233
234
235
236
237
238
239
240
241

242
243
244
245
246
247
248
249







-
+










-
-
+
+
-



















+
+
+
+
+
+
+

















-
+
















-
+




-
+

-
+
+










-
+







The "target_source" make target will create a subdirectory "tsrc/" and
fill it with all the source files needed to build SQLite, both
manually-edited files and automatically-generated files.

The SQLite interface is defined by the **sqlite3.h** header file, which is
generated from src/sqlite.h.in, ./manifest.uuid, and ./VERSION.  The
[Tcl script](http://www.tcl.tk) at tool/mksqlite3h.tcl does the conversion.
The manifest.uuid file contains the SHA1 hash of the particular check-in
The manifest.uuid file contains the SHA3 hash of the particular check-in
and is used to generate the SQLITE\_SOURCE\_ID macro.  The VERSION file
contains the current SQLite version number.  The sqlite3.h header is really
just a copy of src/sqlite.h.in with the source-id and version number inserted
at just the right spots. Note that comment text in the sqlite3.h file is
used to generate much of the SQLite API documentation.  The Tcl scripts
used to generate that documentation are in a separate source repository.

The SQL language parser is **parse.c** which is generate from a grammar in
the src/parse.y file.  The conversion of "parse.y" into "parse.c" is done
by the [lemon](./doc/lemon.html) LALR(1) parser generator.  The source code
for lemon is at tool/lemon.c.  Lemon uses a
template for generating its parser.  A generic template is in tool/lempar.c,
for lemon is at tool/lemon.c.  Lemon uses the tool/lempar.c file as a
template for generating its parser.
but SQLite uses a slightly modified template found in src/lempar.c.

Lemon also generates the **parse.h** header file, at the same time it
generates parse.c. But the parse.h header file is
modified further (to add additional symbols) using the ./addopcodes.awk
AWK script.

The **opcodes.h** header file contains macros that define the numbers
corresponding to opcodes in the "VDBE" virtual machine.  The opcodes.h
file is generated by the scanning the src/vdbe.c source file.  The
AWK script at ./mkopcodeh.awk does this scan and generates opcodes.h.
A second AWK script, ./mkopcodec.awk, then scans opcodes.h to generate
the **opcodes.c** source file, which contains a reverse mapping from
opcode-number to opcode-name that is used for EXPLAIN output.

The **keywordhash.h** header file contains the definition of a hash table
that maps SQL language keywords (ex: "CREATE", "SELECT", "INDEX", etc.) into
the numeric codes used by the parse.c parser.  The keywordhash.h file is
generated by a C-language program at tool mkkeywordhash.c.

The **pragma.h** header file contains various definitions used to parse
and implement the PRAGMA statements.  The header is generated by a
script **tool/mkpragmatab.tcl**. If you want to add a new PRAGMA, edit
the **tool/mkpragmatab.tcl** file to insert the information needed by the
parser for your new PRAGMA, then run the script to regenerate the
**pragma.h** header file.

### The Amalgamation

All of the individual C source code and header files (both manually-edited
and automatically-generated) can be combined into a single big source file
**sqlite3.c** called "the amalgamation".  The amalgamation is the recommended
way of using SQLite in a larger application.  Combining all individual
source code files into a single big source code file allows the C compiler
to perform more cross-procedure analysis and generate better code.  SQLite
runs about 5% faster when compiled from the amalgamation versus when compiled
from individual source files.

The amalgamation is generated from the tool/mksqlite3c.tcl Tcl script.
First, all of the individual source files must be gathered into the tsrc/
subdirectory (using the equivalent of "make target_source") then the
tool/mksqlite3c.tcl script is run to copy them all together in just the
right order while resolving internal "#include" references.

The amalgamation source file is more than 100K lines long.  Some symbolic
The amalgamation source file is more than 200K lines long.  Some symbolic
debuggers (most notably MSVC) are unable to deal with files longer than 64K
lines.  To work around this, a separate Tcl script, tool/split-sqlite3c.tcl,
can be run on the amalgamation to break it up into a single small C file
called **sqlite3-all.c** that does #include on about five other files
named **sqlite3-1.c**, **sqlite3-2.c**, ..., **sqlite3-5.c**.  In this way,
all of the source code is contained within a single translation unit so
that the compiler can do extra cross-procedure optimization, but no
individual source file exceeds 32K lines in length.

## How It All Fits Together

SQLite is modular in design.
See the [architectural description](http://www.sqlite.org/arch.html)
for details. Other documents that are useful in
(helping to understand how SQLite works include the
[file format](http://www.sqlite.org/fileformat2.html) description,
the [virtual machine](http://www.sqlite.org/vdbe.html) that runs
the [virtual machine](http://www.sqlite.org/opcode.html) that runs
prepared statements, the description of
[how transactions work](http://www.sqlite.org/atomiccommit.html), and
the [overview of the query planner](http://www.sqlite.org/optoverview.html).

Unfortunately, years of effort have gone into optimizating SQLite, both
Years of effort have gone into optimizating SQLite, both
for small size and high performance.  And optimizations tend to result in
complex code.  So there is a lot of complexity in the SQLite implementation.
complex code.  So there is a lot of complexity in the current SQLite
implementation.  It will not be the easiest library in the world to hack.

Key files:

  *  **sqlite.h.in** - This file defines the public interface to the SQLite
     library.  Readers will need to be familiar with this interface before
     trying to understand how the library works internally.

  *  **sqliteInt.h** - this header file defines many of the data objects
     used internally by SQLite.

  *  **parse.y** - This file describes the LALR(1) grammer that SQLite uses
  *  **parse.y** - This file describes the LALR(1) grammar that SQLite uses
     to parse SQL statements, and the actions that are taken at each step
     in the parsing process.

  *  **vdbe.c** - This file implements the virtual machine that runs
     prepared statements.  There are various helper files whose names
     begin with "vdbe".  The VDBE has access to the vdbeInt.h header file
     which defines internal data objects.  The rest of SQLite interacts
256
257
258
259
260
261
262
263

264
265
266
267
268
269
270

271
272
268
269
270
271
272
273
274

275
276
277
278
279
280
281

282
283
284







-
+






-
+


     is the file that, when linked against sqlite3.a, generates the
     "sqlite3.exe" command-line shell.

  *  **tclsqlite.c** - This file implements the Tcl bindings for SQLite.  It
     is not part of the core SQLite library.  But as most of the tests in this
     repository are written in Tcl, the Tcl language bindings are important.

There are many other source files.  Each has a suscinct header comment that
There are many other source files.  Each has a succinct header comment that
describes its purpose and role within the larger system.


## Contacts

The main SQLite webpage is [http://www.sqlite.org/](http://www.sqlite.org/)
with geographically distributed backup servers at
with geographically distributed backups at
[http://www2.sqlite.org/](http://www2.sqlite.org) and
[http://www3.sqlite.org/](http://www3.sqlite.org).
Changes to ext/fts3/fts3.c.
3349
3350
3351
3352
3353
3354
3355
3356
3357

3358
3359
3360
3361
3362
3363
3364
3349
3350
3351
3352
3353
3354
3355


3356
3357
3358
3359
3360
3361
3362
3363







-
-
+








  /* The column value supplied by SQLite must be in range. */
  assert( iCol>=0 && iCol<=p->nColumn+2 );

  switch( iCol-p->nColumn ){
    case 0:
      /* The special 'table-name' column */
      sqlite3_result_blob(pCtx, &pCsr, sizeof(Fts3Cursor*), SQLITE_TRANSIENT);
      sqlite3_result_subtype(pCtx, SQLITE_BLOB);
      sqlite3_result_pointer(pCtx, pCsr, "fts3cursor");
      break;

    case 1:
      /* The docid column */
      sqlite3_result_int64(pCtx, pCsr->iPrevId);
      break;

3568
3569
3570
3571
3572
3573
3574
3575
3576
3577




3578
3579
3580
3581
3582
3583
3584
3567
3568
3569
3570
3571
3572
3573



3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584







-
-
-
+
+
+
+







*/
static int fts3FunctionArg(
  sqlite3_context *pContext,      /* SQL function call context */
  const char *zFunc,              /* Function name */
  sqlite3_value *pVal,            /* argv[0] passed to function */
  Fts3Cursor **ppCsr              /* OUT: Store cursor handle here */
){
  int rc = SQLITE_OK;
  if( sqlite3_value_subtype(pVal)==SQLITE_BLOB ){
    *ppCsr = *(Fts3Cursor**)sqlite3_value_blob(pVal);
  int rc;
  *ppCsr = (Fts3Cursor*)sqlite3_value_pointer(pVal, "fts3cursor");
  if( (*ppCsr)!=0 ){
    rc = SQLITE_OK;
  }else{
    char *zErr = sqlite3_mprintf("illegal first argument to %s", zFunc);
    sqlite3_result_error(pContext, zErr, -1);
    sqlite3_free(zErr);
    rc = SQLITE_ERROR;
  }
  return rc;
Changes to ext/fts5/fts5_main.c.
2605
2606
2607
2608
2609
2610
2611
2612

2613
2614
2615
2616
2617
2618
2619





2620
2621
2622
2623
2624
2625
2626
2627
2605
2606
2607
2608
2609
2610
2611

2612
2613
2614





2615
2616
2617
2618
2619

2620
2621
2622
2623
2624
2625
2626







-
+


-
-
-
-
-
+
+
+
+
+
-








  sqlite3_free(pGlobal);
}

static void fts5Fts5Func(
  sqlite3_context *pCtx,          /* Function call context */
  int nArg,                       /* Number of args */
  sqlite3_value **apUnused        /* Function arguments */
  sqlite3_value **apArg           /* Function arguments */
){
  Fts5Global *pGlobal = (Fts5Global*)sqlite3_user_data(pCtx);
  char buf[8];
  UNUSED_PARAM2(nArg, apUnused);
  assert( nArg==0 );
  assert( sizeof(buf)>=sizeof(pGlobal) );
  memcpy(buf, (void*)&pGlobal, sizeof(pGlobal));
  fts5_api **ppApi;
  UNUSED_PARAM(nArg);
  assert( nArg==1 );
  ppApi = (fts5_api**)sqlite3_value_pointer(apArg[0], "fts5_api_ptr");
  if( ppApi ) *ppApi = &pGlobal->api;
  sqlite3_result_blob(pCtx, buf, sizeof(pGlobal), SQLITE_TRANSIENT);
}

/*
** Implementation of fts5_source_id() function.
*/
static void fts5SourceIdFunc(
  sqlite3_context *pCtx,          /* Function call context */
2678
2679
2680
2681
2682
2683
2684
2685

2686
2687
2688
2689
2690
2691
2692
2677
2678
2679
2680
2681
2682
2683

2684
2685
2686
2687
2688
2689
2690
2691







-
+







    if( rc==SQLITE_OK ) rc = sqlite3Fts5IndexInit(db);
    if( rc==SQLITE_OK ) rc = sqlite3Fts5ExprInit(pGlobal, db);
    if( rc==SQLITE_OK ) rc = sqlite3Fts5AuxInit(&pGlobal->api);
    if( rc==SQLITE_OK ) rc = sqlite3Fts5TokenizerInit(&pGlobal->api);
    if( rc==SQLITE_OK ) rc = sqlite3Fts5VocabInit(pGlobal, db);
    if( rc==SQLITE_OK ){
      rc = sqlite3_create_function(
          db, "fts5", 0, SQLITE_UTF8, p, fts5Fts5Func, 0, 0
          db, "fts5", 1, SQLITE_UTF8, p, fts5Fts5Func, 0, 0
      );
    }
    if( rc==SQLITE_OK ){
      rc = sqlite3_create_function(
          db, "fts5_source_id", 0, SQLITE_UTF8, p, fts5SourceIdFunc, 0, 0
      );
    }
Changes to ext/fts5/fts5_tcl.c.
95
96
97
98
99
100
101
102

103
104
105
106
107
108


109
110
111
112
113
114
115
116
117
118
95
96
97
98
99
100
101

102
103
104
105
106


107
108



109
110
111
112
113
114
115







-
+




-
-
+
+
-
-
-







  int rc = f5tDbPointer(interp, pObj, &db);
  if( rc!=TCL_OK ){
    return TCL_ERROR;
  }else{
    sqlite3_stmt *pStmt = 0;
    fts5_api *pApi = 0;

    rc = sqlite3_prepare_v2(db, "SELECT fts5()", -1, &pStmt, 0);
    rc = sqlite3_prepare_v2(db, "SELECT fts5(?1)", -1, &pStmt, 0);
    if( rc!=SQLITE_OK ){
      Tcl_AppendResult(interp, "error: ", sqlite3_errmsg(db), 0);
      return TCL_ERROR;
    }

    if( SQLITE_ROW==sqlite3_step(pStmt) ){
    sqlite3_bind_pointer(pStmt, 1, (void*)&pApi, "fts5_api_ptr");
    sqlite3_step(pStmt);
      const void *pPtr = sqlite3_column_blob(pStmt, 0);
      memcpy((void*)&pApi, pPtr, sizeof(pApi));
    }

    if( sqlite3_finalize(pStmt)!=SQLITE_OK ){
      Tcl_AppendResult(interp, "error: ", sqlite3_errmsg(db), 0);
      return TCL_ERROR;
    }

    *ppDb = db;
Changes to ext/fts5/fts5_test_mi.c.
69
70
71
72
73
74
75
76

77

78

79
80
81
82
83
84
85
86
87
88
89
69
70
71
72
73
74
75

76
77
78

79




80
81
82
83
84
85
86







-
+

+
-
+
-
-
-
-







** handle (accessible using sqlite3_errcode()/errmsg()).
*/
static int fts5_api_from_db(sqlite3 *db, fts5_api **ppApi){
  sqlite3_stmt *pStmt = 0;
  int rc;

  *ppApi = 0;
  rc = sqlite3_prepare(db, "SELECT fts5()", -1, &pStmt, 0);
  rc = sqlite3_prepare(db, "SELECT fts5(?1)", -1, &pStmt, 0);
  if( rc==SQLITE_OK ){
    sqlite3_bind_pointer(pStmt, 1, (void*)ppApi, "fts5_api_ptr");
    if( SQLITE_ROW==sqlite3_step(pStmt) 
    (void)sqlite3_step(pStmt);
        && sizeof(fts5_api*)==sqlite3_column_bytes(pStmt, 0)
      ){
      memcpy(ppApi, sqlite3_column_blob(pStmt, 0), sizeof(fts5_api*));
    }
    rc = sqlite3_finalize(pStmt);
  }

  return rc;
}


418
419
420
421
422
423
424
425
415
416
417
418
419
420
421








-
  /* Register the implementation of matchinfo() */
  rc = pApi->xCreateFunction(pApi, "matchinfo", 0, fts5MatchinfoFunc, 0);

  return rc;
}

#endif /* SQLITE_ENABLE_FTS5 */

Changes to ext/fts5/test/fts5aa.test.
437
438
439
440
441
442
443
444

445
446
447
448
449
450
451
437
438
439
440
441
442
443

444
445
446
447
448
449
450
451







-
+







# exception. But since bm25() can now used the cached structure record,
# it never sees the corruption introduced by funk() and so the following 
# statement no longer fails.
#
do_catchsql_test 16.2 {
  SELECT funk(), bm25(n1), funk() FROM n1 WHERE n1 MATCH 'a+b+c+d'
} {0 {{} -1e-06 {}}}
# {1 {SQL logic error or missing database}}
# {1 {SQL logic error}}

#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 17.1 {
  CREATE VIRTUAL TABLE b2 USING fts5(x, detail=%DETAIL%);
  INSERT INTO b2 VALUES('a');
591
592
593
594
595
596
597
598
599
591
592
593
594
595
596
597









-
-
  SELECT rowid FROM t9('a*')
} {1}

}


finish_test


Changes to ext/fts5/test/fts5ab.test.
290
291
292
293
294
295
296
297
290
291
292
293
294
295
296








-
  INSERT INTO x1 VALUES($doc);
}

} ;# foreach_detail_mode...


finish_test

Changes to ext/fts5/test/fts5ac.test.
272
273
274
275
276
277
278
279
272
273
274
275
276
277
278








-
} {
  do_execsql_test 2.3.$tn {
    SELECT fts5_expr_tcl($expr, 'N $x')
  } [list $tclexpr]
}

finish_test

Changes to ext/fts5/test/fts5ad.test.
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
227
228
229
230
231
232
233

234
235
236
237
238
239
240
241
242
243








-










-
      28 {a f*} 29 {a* f*} 30 {a* fghij*}
    } {
      set res [prefix_query $prefix]
      if {$bAsc} {
        set res [lsort -integer -increasing $res]
      }
      set n [llength $res]
      if {$T==5} breakpoint 
      do_execsql_test $T.$bAsc.$tn.$n $sql $res
    }
  }

  catchsql COMMIT
}

}

finish_test

Changes to ext/fts5/test/fts5ae.test.
305
306
307
308
309
310
311
312
305
306
307
308
309
310
311








-
    SELECT fts5_test_phrasecount(t9) FROM t9 WHERE t9 MATCH $q LIMIT 1
  } $cnt
}

}

finish_test

Changes to ext/fts5/test/fts5af.test.
174
175
176
177
178
179
180
181
174
175
176
177
178
179
180








-
do_execsql_test 5.1 {
  SELECT snippet(p1, 0, '[', ']', '...', 6) FROM p1('x');
} {{[x] a a a a a...}}

} ;# foreach_detail_mode 

finish_test

Changes to ext/fts5/test/fts5ag.test.
138
139
140
141
142
143
144
145
138
139
140
141
142
143
144








-
  }
}

} ;# foreach_detail_mode


finish_test

Changes to ext/fts5/test/fts5ah.test.
163
164
165
166
167
168
169
170
163
164
165
166
167
168
169








-
} {10000}

} ;# foreach_detail_mode

#db eval {SELECT rowid, fts5_decode(rowid, block) aS r FROM t1_data} {puts $r}

finish_test

Changes to ext/fts5/test/fts5ai.test.
51
52
53
54
55
56
57
58
51
52
53
54
55
56
57








-
do_execsql_test 1.2 {
  INSERT INTO t1(t1) VALUES('integrity-check');
}
}


finish_test

Changes to ext/fts5/test/fts5aj.test.
62
63
64
65
66
67
68
69
62
63
64
65
66
67
68








-
  }
}

do_execsql_test 2.0 { INSERT INTO t1(t1) VALUES('integrity-check') }


finish_test

Changes to ext/fts5/test/fts5ak.test.
143
144
145
146
147
148
149
150
143
144
145
146
147
148
149








-
  {[a b c] [c d e]}
  {[a b c d e]}
}

}

finish_test

Changes to ext/fts5/test/fts5al.test.
73
74
75
76
77
78
79
80

81
82
83
84
85
86
87
73
74
75
76
77
78
79

80
81
82
83
84
85
86
87







-
+







  1 ""
  2 "fname"
  3 "fname(X'234ab')"
  4 "myfunc(-1.,'abc')"
} {
  do_test 2.2.$tn {
    catchsql { INSERT INTO ft1(ft1, rank) VALUES('rank', $defn) }
  } {1 {SQL logic error or missing database}}
  } {1 {SQL logic error}}
}

#-------------------------------------------------------------------------
# Assorted tests of the tcl interface for creating extension functions.
#

do_execsql_test 3.1 {
293
294
295
296
297
298
299
300
293
294
295
296
297
298
299








-
  SELECT *, rank FROM t3 WHERE t3 MATCH 'a' AND rank MATCH NULL
} {1 {parse error in rank function: }}

} ;# foreach_detail_mode


finish_test

Changes to ext/fts5/test/fts5alter.test.
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
85
86
87
88
89
90
91

92
93
94
95
96
97
98
99
100
101








-










-

do_execsql_test 3.1 {
  CREATE VIRTUAL TABLE abc USING fts5(a);
  INSERT INTO abc(rowid, a) VALUES(1, 'a');
  BEGIN;
    INSERT INTO abc(rowid, a) VALUES(2, 'a');
}
breakpoint
do_execsql_test 3.2 {
    SELECT rowid FROM abc WHERE abc MATCH 'a';
} {1 2}

do_execsql_test 3.3 {
  COMMIT;
  SELECT rowid FROM abc WHERE abc MATCH 'a';
} {1 2}

finish_test

Changes to ext/fts5/test/fts5auto.test.
338
339
340
341
342
343
344
345
338
339
340
341
342
343
344








-
} {
  do_auto_test 4.$tn yy $expr
}



finish_test

Changes to ext/fts5/test/fts5aux.test.
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
236
237
238
239
240
241
242

243
244
245
246
247
248
249







-







  4  {"a a a" "b" "a d"} {"[a] [a] [a]" "[a] d"}
  1  {"b d" "a b"}       {"[b] [d]" "[a] b"}
  2  {"d b" "a d"}       {"[d] [b]" "[a] d"}
  3  {"a a d"}           {"[a] [a] d"}
} {
  execsql { DELETE FROM x1 }
  foreach row $lRow { execsql { INSERT INTO x1 VALUES($row) } }
  breakpoint
  do_execsql_test 8.$tn {
    SELECT highlight(x1, 0, '[', ']') FROM x1 WHERE x1 MATCH 'a OR (b AND d)';
  } $res
}

#-------------------------------------------------------------------------
# Test the built-in bm25() demo.
275
276
277
278
279
280
281
282
274
275
276
277
278
279
280








-
} {
  9 10
}



finish_test

Changes to ext/fts5/test/fts5auxdata.test.
108
109
110
111
112
113
114
115
108
109
110
111
112
113
114








-
db eval { 
  SELECT aux_function_2(f1, 2, 'A'), aux_function_2(f1, 2, 'B') 
  FROM f1 WHERE f1 MATCH 'a'
  ORDER BY rowid ASC
}

finish_test

Changes to ext/fts5/test/fts5bigpl.test.
57
58
59
60
61
62
63
64
57
58
59
60
61
62
63








-
    set doc [string repeat "$t " 150000000]
    execsql { INSERT INTO t1 VALUES($doc) }
  }
  execsql { INSERT INTO t1(t1) VALUES('integrity-check') }
} {}

finish_test

Changes to ext/fts5/test/fts5bigtok.test.
60
61
62
63
64
65
66
67
68
60
61
62
63
64
65
66









-
-
    do_execsql_test 2.[string range $v 0 0] {
      SELECT rowid FROM t1($v) ORDER BY rowid DESC
    } [lsort -integer -decr $res]
  }
}

finish_test


Changes to ext/fts5/test/fts5colset.test.
80
81
82
83
84
85
86
87
88
80
81
82
83
84
85
86









-
-
  do_catchsql_test 4.1 {
    SELECT * FROM t1 WHERE rowid MATCH 'a'
  } {1 {unable to use function MATCH in the requested context}}
}


finish_test


Changes to ext/fts5/test/fts5columnsize.test.
139
140
141
142
143
144
145
146
147
148
149
150
151
139
140
141
142
143
144
145

146
147
148
149
150







-





#
do_execsql_test 4.1.1 {
  CREATE VIRTUAL TABLE t5 USING fts5(x, columnsize=0);
  INSERT INTO t5 VALUES('1 2 3 4');
  INSERT INTO t5 VALUES('2 4 6 8');
}

breakpoint
do_execsql_test 4.1.2 {
  INSERT INTO t5(t5) VALUES('integrity-check');
}

finish_test
Changes to ext/fts5/test/fts5config.test.
62
63
64
65
66
67
68
69

70
71
72
73
74
75
76
62
63
64
65
66
67
68

69
70
71
72
73
74
75
76







-
+







  5 "f1(x':;')"
  6 "f1(x'[]')"
  7 "f1(x'{}')"
  8 "f1('abc)"
} {
  do_catchsql_test 3.$tn {
    INSERT INTO t1(t1, rank) VALUES('rank', $val);
  } {1 {SQL logic error or missing database}}
  } {1 {SQL logic error}}
}

#-------------------------------------------------------------------------
# The parsing of SQL literals specified as part of 'rank' options.
#
do_execsql_test 4.0 {
  CREATE VIRTUAL TABLE zzz USING fts5(one);
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
106
107
108
109
110
111
112

113
114
115
116
117
118
119







-







#-------------------------------------------------------------------------
# Misquoting in tokenize= and other options. 
#
do_catchsql_test 5.1 {
  CREATE VIRTUAL TABLE xx USING fts5(x, tokenize="porter 'ascii");
} {1 {parse error in tokenize directive}} 

breakpoint
do_catchsql_test 5.2 {
  CREATE VIRTUAL TABLE xx USING fts5(x, [y[]);
} {0 {}}

do_catchsql_test 5.3 {
  CREATE VIRTUAL TABLE yy USING fts5(x, [y]]);
} {1 {unrecognized token: "]"}}
165
166
167
168
169
170
171
172

173
174
175

176
177
178

179
180
181
182

183
184
185

186
187
188

189
190
191
192
193
194
195

196
197
198

199
200
201
202
203
204
205
206
207
208

209
210
211
212

213
214
215

216
217
218
219
220
221
222
164
165
166
167
168
169
170

171
172
173

174
175
176

177
178
179
180

181
182
183

184
185
186

187
188
189
190
191
192
193

194
195
196

197
198
199
200
201
202
203
204
205
206

207
208
209
210

211
212
213

214
215
216
217
218
219
220
221







-
+


-
+


-
+



-
+


-
+


-
+






-
+


-
+









-
+



-
+


-
+







#   9.5.* 'hashsize' options.
#
do_execsql_test 9.0 {
  CREATE VIRTUAL TABLE abc USING fts5(a, b);
} {}
do_catchsql_test 9.1.1 {
  INSERT INTO abc(abc, rank) VALUES('pgsz', -5);
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_catchsql_test 9.1.2 {
  INSERT INTO abc(abc, rank) VALUES('pgsz', 50000000);
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_catchsql_test 9.1.3 {
  INSERT INTO abc(abc, rank) VALUES('pgsz', 66.67);
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}

do_catchsql_test 9.2.1 {
  INSERT INTO abc(abc, rank) VALUES('automerge', -5);
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_catchsql_test 9.2.2 {
  INSERT INTO abc(abc, rank) VALUES('automerge', 50000000);
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_catchsql_test 9.2.3 {
  INSERT INTO abc(abc, rank) VALUES('automerge', 66.67);
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_execsql_test 9.2.4 {
  INSERT INTO abc(abc, rank) VALUES('automerge', 1);
} {}

do_catchsql_test 9.3.1 {
  INSERT INTO abc(abc, rank) VALUES('crisismerge', -5);
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_catchsql_test 9.3.2 {
  INSERT INTO abc(abc, rank) VALUES('crisismerge', 66.67);
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_execsql_test 9.3.3 {
  INSERT INTO abc(abc, rank) VALUES('crisismerge', 1);
} {}
do_execsql_test 9.3.4 {
  INSERT INTO abc(abc, rank) VALUES('crisismerge', 50000000);
} {}

do_catchsql_test 9.4.1 {
  INSERT INTO abc(abc, rank) VALUES('nosuchoption', 1);
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}

do_catchsql_test 9.5.1 {
  INSERT INTO abc(abc, rank) VALUES('hashsize', 'not an integer');
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_catchsql_test 9.5.2 {
  INSERT INTO abc(abc, rank) VALUES('hashsize', -500000);
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_catchsql_test 9.5.3 {
  INSERT INTO abc(abc, rank) VALUES('hashsize', 500000);
} {0 {}}

#-------------------------------------------------------------------------
# Too many prefix indexes. Maximum allowed is 31.
#
241
242
243
244
245
246
247
248

249
250
251
252
253
254
255
256
257
258
259
260
261
262
263

264
265
266
267
240
241
242
243
244
245
246

247
248
249
250
251
252
253
254
255
256
257
258
259
260
261

262
263
264
265








-
+














-
+



-
} {
  set res [list 1 {malformed detail=... directive}]
  do_catchsql_test 11.$tn "CREATE VIRTUAL TABLE f1 USING fts5(x, $opt)" $res
}

do_catchsql_test 12.1 {
  INSERT INTO t1(t1, rank) VALUES('rank', NULL);;
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}

#-------------------------------------------------------------------------
# errors in the 'usermerge' option
#
do_execsql_test 13.0 {
  CREATE VIRTUAL TABLE tt USING fts5(ttt);
}
foreach {tn val} {
  1     -1
  2     4.2
  3     17
  4     1
} {
  set sql "INSERT INTO tt(tt, rank) VALUES('usermerge', $val)"
  do_catchsql_test 13.$tn $sql {1 {SQL logic error or missing database}}
  do_catchsql_test 13.$tn $sql {1 {SQL logic error}}
}

finish_test

Changes to ext/fts5/test/fts5conflict.test.
62
63
64
65
66
67
68
69
70
62
63
64
65
66
67
68









-
-
  REPLACE INTO tbl VALUES(1, '4 5 6', '3 2 1');
  DELETE FROM tbl WHERE a=100;

  INSERT INTO fts_idx(fts_idx) VALUES('integrity-check');
}

finish_test


Changes to ext/fts5/test/fts5content.test.
251
252
253
254
255
256
257
258
251
252
253
254
255
256
257








-
do_execsql_test 6.2 {
  DROP TABLE xx;
  SELECT name FROM sqlite_master;
} {}


finish_test

Changes to ext/fts5/test/fts5corrupt.test.
92
93
94
95
96
97
98
99
92
93
94
95
96
97
98








-

do_catchsql_test 3.1 {
  DELETE FROM t3_content WHERE rowid = 3;
  SELECT * FROM t3 WHERE t3 MATCH 'o';
} {1 {database disk image is malformed}}

finish_test

Changes to ext/fts5/test/fts5corrupt2.test.
265
266
267
268
269
270
271
272
265
266
267
268
269
270
271








-
do_catchsql_test 6.2 {
  SELECT colsize(x5, 0) FROM x5 WHERE x5 MATCH 'a'
} {1 SQLITE_CORRUPT_VTAB}


sqlite3_fts5_may_be_corrupt 0
finish_test

Changes to ext/fts5/test/fts5corrupt3.test.
405
406
407
408
409
410
411
412
405
406
407
408
409
410
411








-
} {}
do_catchsql_test 9.2.2 {
  SELECT * FROM t1('one AND two');
} {1 {database disk image is malformed}}

sqlite3_fts5_may_be_corrupt 0
finish_test

Changes to ext/fts5/test/fts5delete.test.
47
48
49
50
51
52
53
54
47
48
49
50
51
52
53








-
  for {set i 0} {$i < 5} {incr i} {
    execsql { INSERT INTO t1(t1, rank) VALUES('merge', 1) }
    execsql { INSERT INTO t1(t1) VALUES('integrity-check') }
  }
} {}

finish_test

Changes to ext/fts5/test/fts5detail.test.
237
238
239
240
241
242
243
244
237
238
239
240
241
242
243








-
    (SELECT sum(length(block)) from t2_data) <
    (SELECT sum(length(block)) from t3_data)
} {1}



finish_test

Changes to ext/fts5/test/fts5determin.test.
59
60
61
62
63
64
65
66
67
59
60
61
62
63
64
65









-
-
  } {}

  do_determin_test 1.4
}


finish_test


Changes to ext/fts5/test/fts5dlidx.test.
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
62
63
64
65
66
67
68

69
70
71
72
73
74
75







-







        append doc " y" 
      }
    }
    execsql { INSERT INTO t1(rowid, x) VALUES($rowid, $doc) }
  }
  execsql COMMIT

  breakpoint
  do_test $tn.1 {
    execsql { INSERT INTO t1(t1) VALUES('integrity-check') }
  } {}
  
  do_fb_test $tn.3.1 { SELECT rowid FROM t1 WHERE t1 MATCH 'a AND x' } $xdoc
  do_fb_test $tn.3.2 { SELECT rowid FROM t1 WHERE t1 MATCH 'x AND a' } $xdoc
  
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
119
120
121
122
123
124
125

126
127
128
129
130
131
132







-







    INSERT INTO t1(rowid,x) SELECT i, $str FROM iii;
    COMMIT;
  }

  do_execsql_test $tn.1 {
    SELECT rowid FROM t1 WHERE t1 MATCH 'b AND a'
  } {1}
  breakpoint
  do_execsql_test $tn.2 {
    SELECT rowid FROM t1 WHERE t1 MATCH 'b AND a' ORDER BY rowid DESC
  } {1}
}

do_dlidx_test2 2.1 [expr 20] [expr 1<<57] [expr (1<<57) + 128]

193
194
195
196
197
198
199
200
191
192
193
194
195
196
197








-
}

} ;# foreach_detail_mode



finish_test

Changes to ext/fts5/test/fts5doclist.test.
40
41
42
43
44
45
46
47
40
41
42
43
44
45
46








-

do_execsql_test 1.2 {
  INSERT INTO ccc(ccc) VALUES('integrity-check');
}


finish_test

Changes to ext/fts5/test/fts5eb.test.
77
78
79
80
81
82
83
84
85
86
77
78
79
80
81
82
83










-
-
-
do_execsql_test 3.3 {
  SELECT rowid, bm25(e1) FROM e1 WHERE e1 MATCH '"/" OR "just"' ORDER BY rank;
} {1 -1e-06}



finish_test



Changes to ext/fts5/test/fts5fault1.test.
347
348
349
350
351
352
353
354
347
348
349
350
351
352
353








-
    if {$ls != "2 0"} { error "fts5_level_segs says {$ls}" }
  }
}



finish_test

Changes to ext/fts5/test/fts5fault2.test.
133
134
135
136
137
138
139
140
133
134
135
136
137
138
139








-
    );
  }
} -test {
  faultsim_test_result {0 {}}
}

finish_test

Changes to ext/fts5/test/fts5fault3.test.
106
107
108
109
110
111
112
113
106
107
108
109
110
111
112








-
} -test {
  faultsim_test_result [list 0 {}]
}



finish_test

Changes to ext/fts5/test/fts5fault4.test.
391
392
393
394
395
396
397
398
391
392
393
394
395
396
397








-
} -body {
  db eval { ALTER TABLE "tbl one" RENAME TO "tbl two" }
} -test {
  faultsim_test_result {0 {}}
}

finish_test

Changes to ext/fts5/test/fts5fault5.test.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
101
102
103
104
105
106
107

108
109
110
111
112
113
114







-







  db eval {
    SELECT term FROM tv WHERE term BETWEEN '1' AND '2';
  }
} -test {
  faultsim_test_result {0 {1 10 11 12 13 14 15 16 17 18 19 2}}
}

breakpoint
do_execsql_test 3.3.0 {
  SELECT * FROM tv2;
} {
  0 x 1 {} 1 x 1 {} 10 x 1 {} 11 x 1 {} 12 x 1 {} 13 x 1 {}        
  14 x 1 {} 15 x 1 {} 16 x 1 {} 17 x 1 {} 18 x 1 {} 19  x 1 {}     
  2 x 1 {} 3 x 1 {} 4 x 1 {} 5 x 1 {} 6 x 1 {} 7 x 1 {} 8 x 1 {}   
  9 x 1 {}
126
127
128
129
130
131
132
133
125
126
127
128
129
130
131








-
      9 x 1 {}
  ]]
}



finish_test

Changes to ext/fts5/test/fts5fault6.test.
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
276
277
278
279
280
281
282

283
284
285
286
287
288
289
290
291
292
293








-











-
  }
} -test {
  faultsim_test_result {0 1}
}

#-------------------------------------------------------------------------
catch { db close }
breakpoint
do_faultsim_test 6 -faults oom* -prep {
  sqlite_orig db test.db
  sqlite3_db_config_lookaside db 0 0 0
} -test {
  faultsim_test_result {0 {}} {1 {initialization of fts5 failed: }}
  if {$testrc==0} {
    db eval { CREATE VIRTUAL TABLE temp.t1 USING fts5(x) }
  }
  db close
}
finish_test

Changes to ext/fts5/test/fts5fault7.test.
112
113
114
115
116
117
118
119
112
113
114
115
116
117
118








-
do_faultsim_test 2.2 -faults oom-* -body {
  db eval { SELECT * FROM xy('""') }
} -test {
  faultsim_test_result {0 {}}
}

finish_test

Changes to ext/fts5/test/fts5fault8.test.
78
79
80
81
82
83
84
85
78
79
80
81
82
83
84








-
  execsql { INSERT INTO x2(x2) VALUES('optimize') }
} -test {
  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
}


finish_test

Changes to ext/fts5/test/fts5fault9.test.
149
150
151
152
153
154
155
156
149
150
151
152
153
154
155








-
  faultsim_test_result [list 0 {1 3}]
}


} ;# foreach_detail_mode...

finish_test

Changes to ext/fts5/test/fts5faultA.test.
57
58
59
60
61
62
63
64
57
58
59
60
61
62
63








-
  sqlite3 db test.db
} -body {
  execsql { SELECT rowid FROM o2('a+b+c NOT xyz') }
} -test {
  faultsim_test_result {0 {1 2}}
}
finish_test

Changes to ext/fts5/test/fts5faultB.test.
128
129
130
131
132
133
134
135
128
129
130
131
132
133
134








-
  execsql { SELECT rowid FROM t1('{a b c} : (a AND d)') }
} -test {
  faultsim_test_result {0 {2 3}}
}


finish_test

Changes to ext/fts5/test/fts5full.test.
36
37
38
39
40
41
42
43
36
37
38
39
40
41
42








-
      execsql { INSERT INTO x8 VALUES( rnddoc(5) ); }
    }
  } msg] $msg
} {1 {database or disk is full}}


finish_test

Changes to ext/fts5/test/fts5fuzz1.test.
86
87
88
89
90
91
92
93
86
87
88
89
90
91
92








-
reset_db
do_catchsql_test 4.1 {
  CREATE VIRTUAL TABLE f2 USING fts5(o, t);
  SELECT * FROM f2('(8 AND 9)`AND 10');
} {1 {fts5: syntax error near "`"}}

finish_test

Changes to ext/fts5/test/fts5hash.test.
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
117
118
119
120
121
122
123

124
125
126
127
128
129
130
131








-








-
    set hash [sqlite3_fts5_token_hash 1024 $big]
    while {1} {
      set small [random_token]
      if {[sqlite3_fts5_token_hash 1024 $small]==$hash} break
    }

    execsql { CREATE VIRTUAL TABLE t2 USING fts5(x, detail=%DETAIL%) }
breakpoint
    execsql {
      INSERT INTO t2 VALUES($small || ' ' || $big);
    }
  } {}

} ;# foreach_detail_mode

finish_test

Changes to ext/fts5/test/fts5integrity.test.
206
207
208
209
210
211
212
213
206
207
208
209
210
211
212








-
      if {$res == [lsort -integer $res2]} { incr ok }
    }
    set ok
  } {1000}
}

finish_test

Changes to ext/fts5/test/fts5lastrowid.test.
66
67
68
69
70
71
72
73
66
67
68
69
70
71
72








-
do_execsql_test 1.6 {
  INSERT INTO t1(rowid, str) SELECT rowid+10, x FROM x1;
  SELECT last_insert_rowid();
} {14}


finish_test

Changes to ext/fts5/test/fts5leftjoin.test.
37
38
39
40
41
42
43
44
45
37
38
39
40
41
42
43









-
-
} {1 1 abc 2 {} {}}

do_execsql_test 1.2 {
  SELECT * FROM t1 LEFT JOIN vt ON (vt MATCH 'abc')
} {1 abc 2 abc}

finish_test


Changes to ext/fts5/test/fts5matchinfo.test.
468
469
470
471
472
473
474
475

476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
468
469
470
471
472
473
474

475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494








-
+



















-
} ;# foreach_detail_mode

#-------------------------------------------------------------------------
# Test that a bad fts5() return is detected
#
reset_db
proc xyz {} {}
db func fts5 -argcount 0 xyz
db func fts5 -argcount 1 xyz
do_test 13.1 {
  list [catch { sqlite3_fts5_register_matchinfo db } msg] $msg
} {1 SQLITE_ERROR}

#-------------------------------------------------------------------------
# Test that an invalid matchinfo() flag is detected
#
reset_db
sqlite3_fts5_register_matchinfo db
do_execsql_test 14.1 {
  CREATE VIRTUAL TABLE x1 USING fts5(z);
  INSERT INTO x1 VALUES('a b c a b c a b c');
} {}

do_catchsql_test 14.2 {
  SELECT matchinfo(x1, 'd') FROM x1('a b c');
} {1 {unrecognized matchinfo flag: d}}

finish_test

Changes to ext/fts5/test/fts5merge.test.
237
238
239
240
241
242
243
244
237
238
239
240
241
242
243








-
do_execsql_test 6.3 {
  INSERT INTO g1(g1) VALUES('integrity-check');
}



finish_test

Changes to ext/fts5/test/fts5merge2.test.
51
52
53
54
55
56
57
58
51
52
53
54
55
56
57








-
do_execsql_test 1.2 {
  INSERT INTO t1(t1) VALUES('integrity-check');
}

}

finish_test

Changes to ext/fts5/test/fts5multiclient.test.
41
42
43
44
45
46
47
48
41
42
43
44
45
46
47








-
    sql1 { INSERT INTO t1 VALUES('a b c') }
    sql3 { INSERT INTO t1(t1) VALUES('integrity-check') }
  } {}

};# do_multiclient_test
};# foreach_detail_mode
finish_test

Changes to ext/fts5/test/fts5near.test.
64
65
66
67
68
69
70
71
64
65
66
67
68
69
70








-
do_near_test 1.23 "a b c d e f g h i" { NEAR(a+b+c+d i b+c, 4) } 0

do_near_test 1.24 "a b c d e f g h i" { NEAR(i a+b+c+d b+c, 5) } 1
do_near_test 1.25 "a b c d e f g h i" { NEAR(i a+b+c+d b+c, 4) } 0


finish_test

Changes to ext/fts5/test/fts5onepass.test.
174
175
176
177
178
179
180
181
174
175
176
177
178
179
180








-
    UPDATE ttt SET x = 'A B C' WHERE rowid = 4;
    INSERT INTO ttt(rowid, x) VALUES(6, 'd e f');
  COMMIT;
} {}
do_test 4.2.2 { fts5_level_segs ttt } {3}

finish_test

Changes to ext/fts5/test/fts5optimize.test.
102
103
104
105
106
107
108
109
102
103
104
105
106
107
108








-
  do_execsql_test 2.$tn.5 {
    INSERT INTO t1(t1) VALUES('integrity-check');
  }

  do_test 2.$tn.6 { fts5_segcount t1 } 1
}
finish_test

Changes to ext/fts5/test/fts5phrase.test.
112
113
114
115
116
117
118
119
112
113
114
115
116
117
118








-
  FROM t3('a:f+f')
} {
  31 {h *f f*} {i j g e c} {j j f c a i j} 
  50 {*f f* c} {f f b i i} {f f a j e c i}
}

finish_test

Changes to ext/fts5/test/fts5plan.test.
60
61
62
63
64
65
66
67
60
61
62
63
64
65
66








-
  0 0 0 {SCAN TABLE f1 VIRTUAL TABLE INDEX 2:}
}




finish_test

Changes to ext/fts5/test/fts5porter.test.
11799
11800
11801
11802
11803
11804
11805
11806
11799
11800
11801
11802
11803
11804
11805








-
    lindex [sqlite3_fts5_tokenize db porter $in] 0
  } $out
  incr i
}


finish_test

Changes to ext/fts5/test/fts5porter2.test.
63
64
65
66
67
68
69
70
63
64
65
66
67
68
69








-
    lindex [sqlite3_fts5_tokenize db porter $in] 0
  } $out
  incr i
}


finish_test

Changes to ext/fts5/test/fts5prefix.test.
337
338
339
340
341
342
343
344
345
337
338
339
340
341
342
343









-
-
    do_execsql_test 7.$tn {
      SELECT md5sum(id, block) FROM tt_data
    } [list $::checksum]
  }
}

finish_test


Changes to ext/fts5/test/fts5query.test.
75
76
77
78
79
80
81
82
83
75
76
77
78
79
80
81









-
-
    } {}
    incr ret
  }
}


finish_test


Changes to ext/fts5/test/fts5rank.test.
148
149
150
151
152
153
154
155
148
149
150
151
152
153
154








-
  VTest MATCH 'wrinkle in time OR a wrinkle in time' ORDER BY rank;
} {{wrinkle in time} {Bill Smith}}




finish_test

Changes to ext/fts5/test/fts5rebuild.test.
60
61
62
63
64
65
66
67
60
61
62
63
64
65
66








-
  CREATE VIRTUAL TABLE nc USING fts5(doc, content=);
}

do_catchsql_test 2.2 {
  INSERT INTO nc(nc) VALUES('rebuild');
} {1 {'rebuild' may not be used with a contentless fts5 table}}
finish_test

Changes to ext/fts5/test/fts5restart.test.
145
146
147
148
149
150
151
152
145
146
147
148
149
150
151








-
  }
  set res
} {500 400 300}



finish_test

Changes to ext/fts5/test/fts5rowid.test.
212
213
214
215
216
217
218
219
212
213
214
215
216
217
218








-
} {36}

#db eval {SELECT rowid, fts5_decode_none(rowid, block) aS r FROM x5_data} {puts $r}



finish_test

Changes to ext/fts5/test/fts5simple.test.
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
407
408
409
410
411
412
413

414
415
416
417
418
419
420







-








do_catchsql_test 19.2 {
  SELECT * FROM x1 WHERE x1 MATCH 'c0 AND (c1 AND (c2 AND (c3 AND (c4 AND (c5 AND (c6 AND (c7 AND (c8 AND (c9 AND (c10 AND (c11 AND (c12 AND (c13 AND (c14 AND (c15 AND (c16 AND (c17 AND (c18 AND (c19 AND (c20 AND (c21 AND (c22 AND (c23 AND (c24 AND (c25 AND (c26 AND (c27 AND (c28 AND (c29 AND (c30 AND (c31 AND (c32 AND (c33 AND (c34 AND (c35 AND (c36 AND (c37 AND (c38 AND (c39 AND (c40 AND (c41 AND (c42 AND (c43 AND (c44 AND (c45 AND (c46 AND (c47 AND (c48 AND (c49 AND (c50 AND (c51 AND (c52 AND (c53 AND (c54 AND (c55 AND (c56 AND (c57 AND (c58 AND (c59 AND (c60 AND (c61 AND (c62 AND (c63 AND (c64 AND (c65 AND (c66 AND (c67 AND (c68 AND (c69 AND (c70 AND (c71 AND (c72 AND (c73 AND (c74 AND (c75 AND (c76 AND (c77 AND (c78 AND (c79 AND (c80 AND (c81 AND (c82 AND (c83 AND (c84 AND (c85 AND (c86 AND (c87 AND (c88 AND (c89 AND (c90 AND (c91 AND (c92 AND (c93 AND (c94 AND (c95 AND (c96 AND (c97 AND (c98 AND (c99 AND (c100 AND (c101 AND (c102 AND (c103 AND (c104 AND (c105 AND (c106 AND (c107 AND (c108 AND (c109 AND (c110 AND (c111 AND (c112 AND (c113 AND (c114 AND (c115 AND (c116 AND (c117 AND (c118 AND (c119 AND (c120 AND (c121 AND (c122 AND (c123 AND (c124 AND (c125 AND (c126 AND (c127 AND (c128 AND (c129 AND (c130 AND (c131 AND (c132 AND (c133 AND (c134 AND (c135 AND (c136 AND (c137 AND (c138 AND (c139 AND (c140 AND (c141 AND (c142 AND (c143 AND (c144 AND (c145 AND (c146 AND (c147 AND (c148 AND (c149 AND (c150 AND (c151 AND (c152 AND (c153 AND (c154 AND (c155 AND (c156 AND (c157 AND (c158 AND (c159 AND (c160 AND (c161 AND (c162 AND (c163 AND (c164 AND (c165 AND (c166 AND (c167 AND (c168 AND (c169 AND (c170 AND (c171 AND (c172 AND (c173 AND (c174 AND (c175 AND (c176 AND (c177 AND (c178 AND (c179 AND (c180 AND (c181 AND (c182 AND (c183 AND (c184 AND (c185 AND (c186 AND (c187 AND (c188 AND (c189 AND (c190 AND (c191 AND (c192 AND (c193 AND (c194 AND (c195 AND (c196 AND (c197 AND (c198 AND (c199 AND c200)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))';
} {1 {fts5: parser stack overflow}}

#-------------------------------------------------------------------------
reset_db
breakpoint
do_execsql_test 20.0 {
  CREATE VIRTUAL TABLE x1 USING fts5(x);
  INSERT INTO x1(x1, rank) VALUES('pgsz', 32);
  INSERT INTO x1(rowid, x) VALUES(11111, 'onetwothree');
}
do_test 20.1 {
  for {set i 1} {$i <= 200} {incr i} {
Changes to ext/fts5/test/fts5simple2.test.
366
367
368
369
370
371
372
373
366
367
368
369
370
371
372








-
do_execsql_test 17.6 { 
  SELECT * FROM t2('x:b* OR y:a*') WHERE rowid>55
}

#db eval {SELECT rowid, fts5_decode_none(rowid, block) aS r FROM t2_data} {puts $r}
  
finish_test

Changes to ext/fts5/test/fts5simple3.test.
112
113
114
115
116
117
118
119
112
113
114
115
116
117
118








-
} 
do_execsql_test 4.6 {
  SELECT * FROM t2('ab + xyz');
}


finish_test

Changes to ext/fts5/test/fts5synonym.test.
417
418
419
420
421
422
423
424
417
418
419
420
421
422
423








-
do_execsql_test 7.1.2 {
  INSERT INTO t2(t2) VALUES('integrity-check');
}

} ;# foreach_detail_mode

finish_test

Changes to ext/fts5/test/fts5synonym2.test.
157
158
159
160
161
162
163
164
157
158
159
160
161
162
163








-

}

}
}

finish_test

Changes to ext/fts5/test/fts5tok1.test.
105
106
107
108
109
110
111
112

113
114
115
105
106
107
108
109
110
111

112
113
114
115







-
+



do_catchsql_test 2.0 {
  CREATE VIRTUAL TABLE tX USING fts5tokenize(nosuchtokenizer);
} {1 {vtable constructor failed: tX}}

do_catchsql_test 2.1 {
  CREATE VIRTUAL TABLE t4 USING fts5tokenize;
  SELECT * FROM t4;
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}


finish_test
Changes to ext/fts5/test/fts5tokenizer.test.
298
299
300
301
302
303
304
305
298
299
300
301
302
303
304








-

set ::flags [list]
do_execsql_test 9.5.1 { SELECT * FROM t1('"abc xyz*"'); } {}
do_test 9.5.2 { set ::flags } {query}


finish_test

Changes to ext/fts5/test/fts5unicode.test.
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
46
47
48
49
50
51
52

53
54
55
56
57
58
59
60








-








-
  CREATE VIRTUAL TABLE t1 USING fts5(x);
  CREATE VIRTUAL TABLE t2 USING fts5(x, tokenize = unicode61);
  CREATE VIRTUAL TABLE t3 USING fts5(x, tokenize = ascii);
  INSERT INTO t1 VALUES('\xC0\xC8\xCC');
  INSERT INTO t2 VALUES('\xC0\xC8\xCC');
  INSERT INTO t3 VALUES('\xC0\xC8\xCC');
"
breakpoint
do_execsql_test 2.1 "
  SELECT 't1' FROM t1 WHERE t1 MATCH '\xE0\xE8\xEC';
  SELECT 't2' FROM t2 WHERE t2 MATCH '\xE0\xE8\xEC';
  SELECT 't3' FROM t3 WHERE t3 MATCH '\xE0\xE8\xEC';
" {t1 t2}


finish_test

Changes to ext/fts5/test/fts5unicode2.test.
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
277
278
279
280
281
282
283

284
285
286
287
288
289
290







-







    INSERT INTO t9(a) VALUES('abc%88def %89ghi%90');
  }
} {0 {}}


#-------------------------------------------------------------------------

breakpoint
do_unicode_token_test3 5.1 {tokenchars {}} {
  sqlite3_reset sqlite3_column_int
} {
  sqlite3 sqlite3 
  reset reset 
  sqlite3 sqlite3 
  column column 
Changes to ext/fts5/test/fts5unicode3.test.
122
123
124
125
126
127
128
129
122
123
124
125
126
127
128








-
  }
  append str {'");}
  execsql $str
} {}


finish_test

Changes to ext/fts5/test/fts5unindexed.test.
72
73
74
75
76
77
78
79
72
73
74
75
76
77
78








-
  INSERT INTO t4(t4, rowid, a, b, c) VALUES('delete', 20, 'j k l', '', 'p q r');
  DELETE FROM x4 WHERE rowid=20;
  INSERT INTO t4(t4) VALUES('integrity-check');
} {}


finish_test

Changes to ext/fts5/test/fts5update.test.
113
114
115
116
117
118
119
120
121
113
114
115
116
117
118
119









-
-
} {}
do_execsql_test 2.2.integrity {
  INSERT INTO x2(x2) VALUES('integrity-check');
}

}
finish_test


Changes to ext/fts5/test/fts5version.test.
57
58
59
60
61
62
63
64
57
58
59
60
61
62
63








-
  db close
  sqlite3 db test.db
  catchsql { SELECT * FROM t1 WHERE t1 MATCH 'a' }
} {1 {invalid fts5 file format (found 0, expected 4) - run 'rebuild'}}


finish_test

Changes to ext/fts5/test/fts5vocab.test.
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
206
207
208
209
210
211
212

213
214
215
216
217
218
219







-







  INSERT INTO temp.t1 VALUES('1 5 3');

  INSERT INTO aux.t1 VALUES('x y z');
  INSERT INTO aux.t1 VALUES('m n o');
  INSERT INTO aux.t1 VALUES('x n z');
}

breakpoint
do_execsql_test 5.1 {
  CREATE VIRTUAL TABLE temp.vm  USING fts5vocab(main, t1, row);
  CREATE VIRTUAL TABLE temp.vt1 USING fts5vocab(t1, row);
  CREATE VIRTUAL TABLE temp.vt2 USING fts5vocab(temp, t1, row);
  CREATE VIRTUAL TABLE temp.va  USING fts5vocab(aux, t1, row);
}

Changes to ext/lsm1/Makefile.
1
2
3
4
5

6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
13





+







#
# This Makefile is designed for use with main.mk in the root directory of
# this project. After including main.mk, the users makefile should contain:
#
#    LSMDIR=$(TOP)/ext/lsm1/
#    LSMOPTS=-fPIC
#    include $(LSMDIR)/Makefile
#
# The most useful targets are [lsmtest] and [lsm.so].
#

LSMOBJ    = \
  lsm_ckpt.o \
38
39
40
41
42
43
44
45

46
47
48
49
50
51
52
53
54
55

56
39
40
41
42
43
44
45

46
47
48
49
50
51
52
53
54
55

56








-
+









-
+
-
             $(LSMDIR)/lsm-test/lsmtest_main.c $(LSMDIR)/lsm-test/lsmtest_mem.c \
             $(LSMDIR)/lsm-test/lsmtest_tdb.c $(LSMDIR)/lsm-test/lsmtest_tdb3.c \
             $(LSMDIR)/lsm-test/lsmtest_util.c $(LSMDIR)/lsm-test/lsmtest_win32.c


# all: lsm.so

LSMOPTS = -DLSM_MUTEX_PTHREADS=1 -I$(LSMDIR)
LSMOPTS += -DLSM_MUTEX_PTHREADS=1 -I$(LSMDIR)

lsm.so:	$(LSMOBJ)
	$(TCCX) -shared -o lsm.so $(LSMOBJ)

%.o:	$(LSMDIR)/%.c $(LSMHDR) sqlite3.h
	$(TCCX) $(LSMOPTS) -c $<
	
lsmtest$(EXE): $(LSMOBJ) $(LSMTESTSRC) $(LSMTESTHDR) sqlite3.o
	# $(TCPPX) -c $(TOP)/lsm-test/lsmtest_tdb2.cc
	$(TCCX) $(LSMOPTS) $(LSMTESTSRC) $(LSMOBJ) sqlite3.o -o lsmtest$(EXE) $(THREADLIB) 
	$(TCCX) $(LSMOPTS) $(LSMTESTSRC) $(LSMOBJ) sqlite3.o -o lsmtest$(EXE) $(THREADLIB)

Changes to ext/lsm1/Makefile.msc.
1
2
3


4
5
6


7
8
9
10
11
12
13
1


2
3
4


5
6
7
8
9
10
11
12
13

-
-
+
+

-
-
+
+







#
# This Makefile is designed for use with main.mk in the root directory of
# this project. After including main.mk, the users makefile should contain:
# This Makefile is designed for use with Makefile.msc in the root directory
# of this project.  The Makefile.msc should contain:
#
#    LSMDIR=$(TOP)\ext\lsm1\
#    include $(LSMDIR)\Makefile.msc
#    LSMDIR=$(TOP)\ext\lsm1
#    !INCLUDE $(LSMDIR)\Makefile.msc
#
# The most useful targets are [lsmtest.exe] and [lsm.dll].
#

LSMOBJ    = \
  lsm_ckpt.lo \
  lsm_file.lo \
35
36
37
38
39
40
41
42

43
44









45
46
47
48
49
50
51
35
36
37
38
39
40
41

42
43

44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59







-
+

-
+
+
+
+
+
+
+
+
+







             $(LSMDIR)\lsm-test\lsmtest9.c                                   \
             $(LSMDIR)\lsm-test\lsmtest_datasource.c \
             $(LSMDIR)\lsm-test\lsmtest_func.c $(LSMDIR)\lsm-test\lsmtest_io.c  \
             $(LSMDIR)\lsm-test\lsmtest_main.c $(LSMDIR)\lsm-test\lsmtest_mem.c \
             $(LSMDIR)\lsm-test\lsmtest_tdb.c $(LSMDIR)\lsm-test\lsmtest_tdb3.c \
             $(LSMDIR)\lsm-test\lsmtest_util.c $(LSMDIR)\lsm-test\lsmtest_win32.c

# all: lsm.dll
# all: lsm.dll lsmtest.exe

LSMOPTS = -DLSM_MUTEX_WIN32=1 -I$(LSMDIR)
LSMOPTS = $(NO_WARN) -DLSM_MUTEX_WIN32=1 -I$(LSMDIR)

!IF $(DEBUG)>2
LSMOPTS = $(LSMOPTS) -DLSM_DEBUG=1
!ENDIF

!IF $(MEMDEBUG)!=0
LSMOPTS = $(LSMOPTS) -DLSM_DEBUG_MEM=1
!ENDIF

lsm_ckpt.lo:	$(LSMDIR)\lsm_ckpt.c $(LSMHDR) $(SQLITE3H)
	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_ckpt.c

lsm_file.lo:	$(LSMDIR)\lsm_file.c $(LSMHDR) $(SQLITE3H)
	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_file.c

83
84
85
86
87
88
89

90
91
92



91
92
93
94
95
96
97
98
99


100
101
102







+

-
-
+
+
+
	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_varint.c

lsm_vtab.lo:	$(LSMDIR)\lsm_vtab.c $(LSMHDR) $(SQLITE3H)
	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_vtab.c

lsm.dll:	$(LSMOBJ)
	$(LD) $(LDFLAGS) $(LTLINKOPTS) $(LTLIBPATHS) /DLL /OUT:$@ $(LSMOBJ)
	copy /Y $@ $(LSMDIR)\$@

lsmtest.exe: $(LSMOBJ) $(LSMTESTSRC) $(LSMTESTHDR) $(LIBOBJS1)
	$(LTLINK) $(LSMOPTS) $(LSMTESTSRC) /link $(LSMOBJ) $(LIBOBJS1)
lsmtest.exe: $(LSMOBJ) $(LSMTESTSRC) $(LSMTESTHDR) $(LIBOBJ)
	$(LTLINK) $(LSMOPTS) $(LSMTESTSRC) /link $(LSMOBJ) $(LIBOBJ)
	copy /Y $@ $(LSMDIR)\$@
Changes to ext/lsm1/lsm-test/lsmtest.h.
1
2
3
4
5
6
7
8
9

10
11
12









13
14
15
16
17
18
19
20
21
22
23

24
25
26
27
28
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

33
34
35
36
37
38
39
40









+



+
+
+
+
+
+
+
+
+










-
+








#ifndef __WRAPPER_INT_H_
#define __WRAPPER_INT_H_

#include "lsmtest_tdb.h"
#include "sqlite3.h"
#include "lsm.h"

#include <assert.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#ifndef _WIN32
# include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <ctype.h>
#include <stdlib.h>
#include <errno.h>

#ifdef __cplusplus
extern "C" {
#endif

#ifdef _WIN32
# include "windows.h"
# define gettimeofday win32GetTimeOfDay
# define F_OK  (0)
# define sleep(sec) Sleep(1000 * (sec))
# define usleep(usec) Sleep((usec) / 1000)
# define usleep(usec) Sleep(((usec) + 999) / 1000)
# ifdef _MSC_VER
#  include <io.h>
#  define snprintf _snprintf
#  define fsync(fd) FlushFileBuffers((HANDLE)_get_osfhandle((fd)))
#  define fdatasync(fd) FlushFileBuffers((HANDLE)_get_osfhandle((fd)))
#  define __va_copy(dst,src) ((dst) = (src))
#  define ftruncate(fd,sz) ((_chsize_s((fd), (sz))==0) ? 0 : -1)
47
48
49
50
51
52
53




54
55
56
57
58
59
60
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74







+
+
+
+







#define MIN(x,y) ((x)<(y) ? (x) : (y))
#define MAX(x,y) ((x)>(y) ? (x) : (y))

#define unused_parameter(x) (void)(x)

#define TESTDB_DEFAULT_PAGE_SIZE   4096
#define TESTDB_DEFAULT_CACHE_SIZE  2048

#ifndef _O_BINARY
# define _O_BINARY (0)
#endif

/*
** Ideally, these should be in wrapper.c. But they are here instead so that 
** they can be used by the C++ database wrappers in wrapper2.cc.
*/
typedef struct DatabaseMethods DatabaseMethods;
struct TestDb {
Changes to ext/lsm1/lsm-test/lsmtest6.c.
196
197
198
199
200
201
202
203

204
205
206
207
208
209
210
196
197
198
199
200
201
202

203
204
205
206
207
208
209
210







-
+







  int nScan,
  int *pRc
){
  if( *pRc==0 ){
    int rc;
    int iScan = 0;
    lsm_cursor *pCsr;
    int (*xAdvance)(lsm_cursor *);
    int (*xAdvance)(lsm_cursor *) = 0;
    

    rc = lsm_csr_open(pDb, &pCsr);
    testOomAssertRc(pOom, rc);

    if( rc==LSM_OK ){
      if( bReverse ){
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260

261
262
263
264
265
266
267
268
269
270
271
272
273


274
275
276
277
278
279
280

281


282
283




284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303



304
305
306
307
308
309
310
236
237
238
239
240
241
242







243
244
245
246
247
248
249
250
251
252

253
254
255
256
257
258
259
260
261
262
263
264


265
266
267
268
269
270
271
272
273
274

275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299



300
301
302
303
304
305
306
307
308
309







-
-
-
-
-
-
-










-
+











-
-
+
+







+
-
+
+


+
+
+
+

















-
-
-
+
+
+







    lsm_csr_close(pCsr);
    *pRc = rc;
  }
}

#define LSMTEST6_TESTDB "testdb.lsm" 

#ifndef _WIN32
# include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

void testDeleteLsmdb(const char *zFile){
  char *zLog = testMallocPrintf("%s-log", zFile);
  char *zShm = testMallocPrintf("%s-shm", zFile);
  unlink(zFile);
  unlink(zLog);
  unlink(zShm);
  testFree(zLog);
  testFree(zShm);
}

static void copy_file(const char *zFrom, const char *zTo){
static void copy_file(const char *zFrom, const char *zTo, int isDatabase){

  if( access(zFrom, F_OK) ){
    unlink(zTo);
  }else{
    int fd1;
    int fd2;
    off_t sz;
    off_t i;
    struct stat buf;
    u8 *aBuf;

    fd1 = open(zFrom, O_RDONLY, 0644);
    fd2 = open(zTo, O_RDWR | O_CREAT, 0644);
    fd1 = open(zFrom, O_RDONLY | _O_BINARY, 0644);
    fd2 = open(zTo, O_RDWR | O_CREAT | _O_BINARY, 0644);

    fstat(fd1, &buf);
    sz = buf.st_size;
    ftruncate(fd2, sz);

    aBuf = testMalloc(4096);
    for(i=0; i<sz; i+=4096){
      int bLockPage = isDatabase && i == 0;
      int nByte = MIN(4096, sz - i);
      int nByte = MIN((bLockPage ? 4066 : 4096), sz - i);
      memset(aBuf, 0, 4096);
      read(fd1, aBuf, nByte);
      write(fd2, aBuf, nByte);
      if( bLockPage ){
        lseek(fd1, 4096, SEEK_SET);
        lseek(fd2, 4096, SEEK_SET);
      }
    }
    testFree(aBuf);

    close(fd1);
    close(fd2);
  }
}

void testCopyLsmdb(const char *zFrom, const char *zTo){
  char *zLog1 = testMallocPrintf("%s-log", zFrom);
  char *zLog2 = testMallocPrintf("%s-log", zTo);
  char *zShm1 = testMallocPrintf("%s-shm", zFrom);
  char *zShm2 = testMallocPrintf("%s-shm", zTo);

  unlink(zShm2);
  unlink(zLog2);
  unlink(zTo);
  copy_file(zFrom, zTo);
  copy_file(zLog1, zLog2);
  copy_file(zShm1, zShm2);
  copy_file(zFrom, zTo, 1);
  copy_file(zLog1, zLog2, 0);
  copy_file(zShm1, zShm2, 0);

  testFree(zLog1); testFree(zLog2); testFree(zShm1); testFree(zShm2);
}

/*
** File zFile is the path to a database. This function makes backups
** of the database file and its log as follows:
318
319
320
321
322
323
324
325
326


327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345


346
347
348
349
350
351
352
353
354
355
356
357

358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373

374
375
376
377
378
379
380
317
318
319
320
321
322
323


324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342


343
344
345
346
347
348
349
350
351
352
353
354
355

356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371

372
373
374
375
376
377
378
379







-
-
+
+

















-
-
+
+











-
+















-
+







void testSaveDb(const char *zFile, const char *zAux){
  char *zLog = testMallocPrintf("%s-%s", zFile, zAux);
  char *zFileSave = testMallocPrintf("%s-save", zFile);
  char *zLogSave = testMallocPrintf("%s-%s-save", zFile, zAux);

  unlink(zFileSave);
  unlink(zLogSave);
  copy_file(zFile, zFileSave);
  copy_file(zLog, zLogSave);
  copy_file(zFile, zFileSave, 1);
  copy_file(zLog, zLogSave, 0);

  testFree(zLog); testFree(zFileSave); testFree(zLogSave);
}

/*
** File zFile is the path to a database. This function restores
** a backup of the database made by a previous call to testSaveDb().
** Specifically, it does the equivalent of:
**
**     cp $(zFile)-save         $(zFile)
**     cp $(zFile)-save-$(zAux) $(zFile)-$(zAux)
*/
void testRestoreDb(const char *zFile, const char *zAux){
  char *zLog = testMallocPrintf("%s-%s", zFile, zAux);
  char *zFileSave = testMallocPrintf("%s-save", zFile);
  char *zLogSave = testMallocPrintf("%s-%s-save", zFile, zAux);

  copy_file(zFileSave, zFile);
  copy_file(zLogSave, zLog);
  copy_file(zFileSave, zFile, 1);
  copy_file(zLogSave, zLog, 0);

  testFree(zLog); testFree(zFileSave); testFree(zLogSave);
}


static int lsmWriteStr(lsm_db *pDb, const char *zKey, const char *zVal){
  int nKey = strlen(zKey);
  int nVal = strlen(zVal);
  return lsm_insert(pDb, (void *)zKey, nKey, (void *)zVal, nVal);
}

static void setup_delete_db(){
static void setup_delete_db(void){
  testDeleteLsmdb(LSMTEST6_TESTDB);
}

/*
** Create a small database. With the following content:
**
**    "one"   -> "one"
**    "two"   -> "four"
**    "three" -> "nine"
**    "four"  -> "sixteen"
**    "five"  -> "twentyfive"
**    "six"   -> "thirtysix"
**    "seven" -> "fourtynine"
**    "eight" -> "sixtyfour"
*/
static void setup_populate_db(){
static void setup_populate_db(void){
  const char *azStr[] = {
    "one",   "one",
    "two",   "four",
    "three", "nine",
    "four",  "sixteen",
    "five",  "twentyfive",
    "six",   "thirtysix",
408
409
410
411
412
413
414
415

416
417
418
419
420
421
422
407
408
409
410
411
412
413

414
415
416
417
418
419
420
421







-
+







** Set up a database file with the following properties:
**
**   * Page size is 1024 bytes.
**   * Block size is 64 KB.
**   * Contains 5000 key-value pairs starting at 0 from the
**     datasource returned getDatasource().
*/
static void setup_populate_db2(){
static void setup_populate_db2(void){
  Datasource *pData;
  int ii;
  int rc;
  int nBlocksize = 64*1024;
  int nPagesize = 1024;
  int nWritebuffer = 4*1024;
  lsm_db *pDb;
Changes to ext/lsm1/lsm-test/lsmtest8.c.
81
82
83
84
85
86
87
88

89
90
91
92
93
94

95

96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113

114
115
116
117
118
119

120

121
122
123
124
125
126
127
81
82
83
84
85
86
87

88
89
90
91
92
93
94
95

96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113

114
115
116
117
118
119
120
121

122
123
124
125
126
127
128
129







-
+






+
-
+

















-
+






+
-
+







  }
}

#include <stdio.h>
void testReadFile(const char *zFile, int iOff, void *pOut, int nByte, int *pRc){
  if( *pRc==0 ){
    FILE *fd;
    fd = fopen(zFile, "r");
    fd = fopen(zFile, "rb");
    if( fd==0 ){
      *pRc = 1;
    }else{
      if( 0!=fseek(fd, iOff, SEEK_SET) ){
        *pRc = 1;
      }else{
        assert( nByte>=0 );
        if( nByte!=fread(pOut, 1, nByte, fd) ){
        if( (size_t)nByte!=fread(pOut, 1, nByte, fd) ){
          *pRc = 1;
        }
      }
      fclose(fd);
    }
  }
}

void testWriteFile(
  const char *zFile, 
  int iOff, 
  void *pOut, 
  int nByte, 
  int *pRc
){
  if( *pRc==0 ){
    FILE *fd;
    fd = fopen(zFile, "r+");
    fd = fopen(zFile, "r+b");
    if( fd==0 ){
      *pRc = 1;
    }else{
      if( 0!=fseek(fd, iOff, SEEK_SET) ){
        *pRc = 1;
      }else{
        assert( nByte>=0 );
        if( nByte!=fwrite(pOut, 1, nByte, fd) ){
        if( (size_t)nByte!=fwrite(pOut, 1, nByte, fd) ){
          *pRc = 1;
        }
      }
      fclose(fd);
    }
  }
}
151
152
153
154
155
156
157

158
159
160
161
162
163






164
165

166
167
168
169
170
171
172
173







174
175
176


177
178
179
180
181
182
183






184
185
186
187
188
189
190
191
192








193
194
195
196



197
198
199
200
201





202
203
204
205
206
207
208
153
154
155
156
157
158
159
160






161
162
163
164
165
166
167

168
169







170
171
172
173
174
175
176
177


178
179
180






181
182
183
184
185
186
187








188
189
190
191
192
193
194
195
196



197
198
199
200




201
202
203
204
205
206
207
208
209
210
211
212







+
-
-
-
-
-
-
+
+
+
+
+
+

-
+

-
-
-
-
-
-
-
+
+
+
+
+
+
+

-
-
+
+

-
-
-
-
-
-
+
+
+
+
+
+

-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+

-
-
-
+
+
+

-
-
-
-
+
+
+
+
+







**    1) Check that the checksum of the database is zCksum. 
**    2) Write a few keys to the database. Then delete the same keys. 
**    3) Check that the checksum is zCksum.
**    4) Flush the db to disk and run a checkpoint. 
**    5) Check once more that the checksum is still zCksum.
*/
static void doLiveRecovery(const char *zDb, const char *zCksum, int *pRc){
  if( *pRc==LSM_OK ){
  const DatasourceDefn defn = {TEST_DATASOURCE_RANDOM, 20, 25, 100, 500};
  Datasource *pData;
  const char *zCopy = "testcopy.lsm";
  char zCksum2[TEST_CKSUM_BYTES];
  TestDb *pDb = 0;
  int rc;
    const DatasourceDefn defn = {TEST_DATASOURCE_RANDOM, 20, 25, 100, 500};
    Datasource *pData;
    const char *zCopy = "testcopy.lsm";
    char zCksum2[TEST_CKSUM_BYTES];
    TestDb *pDb = 0;
    int rc;

  pData = testDatasourceNew(&defn);
    pData = testDatasourceNew(&defn);

  testCopyLsmdb(zDb, zCopy);
  rc = tdb_lsm_open("test_no_recovery=1", zCopy, 0, &pDb);
  if( rc==0 ){
    ShmHeader *pHdr;
    lsm_db *db;
    testCksumDatabase(pDb, zCksum2);
    testCompareStr(zCksum, zCksum2, &rc);
    testCopyLsmdb(zDb, zCopy);
    rc = tdb_lsm_open("test_no_recovery=1", zCopy, 0, &pDb);
    if( rc==0 ){
      ShmHeader *pHdr;
      lsm_db *db;
      testCksumDatabase(pDb, zCksum2);
      testCompareStr(zCksum, zCksum2, &rc);

    testWriteDatasourceRange(pDb, pData, 1, 10, &rc);
    testDeleteDatasourceRange(pDb, pData, 1, 10, &rc);
      testWriteDatasourceRange(pDb, pData, 1, 10, &rc);
      testDeleteDatasourceRange(pDb, pData, 1, 10, &rc);

    /* Test that the two tree-headers are now consistent. */
    pHdr = getShmHeader(zCopy);
    if( rc==0 && memcmp(&pHdr->hdr1, &pHdr->hdr2, sizeof(pHdr->hdr1)) ){
      rc = 1;
    }
    testFree(pHdr);
      /* Test that the two tree-headers are now consistent. */
      pHdr = getShmHeader(zCopy);
      if( rc==0 && memcmp(&pHdr->hdr1, &pHdr->hdr2, sizeof(pHdr->hdr1)) ){
        rc = 1;
      }
      testFree(pHdr);

    if( rc==0 ){
      int nBuf = 64;
      db = tdb_lsm(pDb);
      lsm_config(db, LSM_CONFIG_AUTOFLUSH, &nBuf);
      lsm_begin(db, 1);
      lsm_commit(db, 0);
      rc = lsm_work(db, 0, 0, 0);
    }
      if( rc==0 ){
        int nBuf = 64;
        db = tdb_lsm(pDb);
        lsm_config(db, LSM_CONFIG_AUTOFLUSH, &nBuf);
        lsm_begin(db, 1);
        lsm_commit(db, 0);
        rc = lsm_work(db, 0, 0, 0);
      }

    testCksumDatabase(pDb, zCksum2);
    testCompareStr(zCksum, zCksum2, &rc);
  }
      testCksumDatabase(pDb, zCksum2);
      testCompareStr(zCksum, zCksum2, &rc);
    }

  testDatasourceFree(pData);
  testClose(&pDb);
  testDeleteLsmdb(zCopy);
  *pRc = rc;
    testDatasourceFree(pData);
    testClose(&pDb);
    testDeleteLsmdb(zCopy);
    *pRc = rc;
  }
}

static void doWriterCrash1(int *pRc){
  const int nWrite = 2000;
  const int nStep = 10;
  const int iWriteStart = 20000;
  int rc = 0;
Changes to ext/lsm1/lsm-test/lsmtest_io.c.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
51
52
53
54
55
56
57








58
59
60
61
62
63
64







-
-
-
-
-
-
-
-







**     $ echo "2M@6M 1492K@4M S 4096@4K S" | lsmtest io testfile.db 4096 
**     3544K written in 127 ms
**
*/

#include "lsmtest.h"

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#ifndef _WIN32
# include <unistd.h>
#endif
#include <ctype.h>

typedef struct IoContext IoContext;

struct IoContext {
  int fd;
  int nWrite;
};

151
152
153
154
155
156
157
158

159
160
161
162
163
164
165
166

167
168
169
170
171
172
173
143
144
145
146
147
148
149

150
151
152
153
154
155
156
157

158
159
160
161
162
163
164
165







-
+







-
+







  if( safe_isdigit(c) ){
    i64 iOff = 0;
    int nByte = 0;
    int rc = 0;
    int nPg;
    int iPg;

    nByte = getNextSize(z, &z, &rc);
    nByte = (int)getNextSize(z, &z, &rc);
    if( rc || *z!='@' ) goto bad_command;
    z++;
    iOff = getNextSize(z, &z, &rc);
    if( rc || (safe_isspace(*z)==0 && *z!='\0') ) goto bad_command;
    if( pzOut ) *pzOut = z;

    nPg = (nByte+pgsz-1) / pgsz;
    lseek(pCtx->fd, iOff, SEEK_SET);
    lseek(pCtx->fd, (off_t)iOff, SEEK_SET);
    for(iPg=0; iPg<nPg; iPg++){
      write(pCtx->fd, aData, pgsz);
    }
    pCtx->nWrite += nByte/1024;

    return 0;
  }
215
216
217
218
219
220
221
222

223
224
225
226
227
228
229
230

231
232
233
234
235
236
237
207
208
209
210
211
212
213

214
215
216
217
218
219
220
221

222
223
224
225
226
227
228
229







-
+







-
+







  if( nArg<2 ){
    testPrintUsage("FILE PGSZ ?CMD-1 ...?");
    return -1;
  }
  zFile = azArg[0];
  zPgsz = azArg[1];

  pgsz = getNextSize(zPgsz, 0, &rc);
  pgsz = (int)getNextSize(zPgsz, 0, &rc);
  if( pgsz<=0 ){
    testPrintError("Ridiculous page size: %d", pgsz);
    return -1;
  }
  aData = malloc(pgsz);
  memset(aData, 0x77, pgsz);

  ctx.fd = open(zFile, O_RDWR|O_CREAT, 0644);
  ctx.fd = open(zFile, O_RDWR|O_CREAT|_O_BINARY, 0644);
  if( ctx.fd<0 ){
    perror("open: ");
    return -1;
  }

  if( nArg==2 ){
    readStdin(&zStdin);
Changes to ext/lsm1/lsm-test/lsmtest_main.c.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1

2





3









4
5
6
7
8
9
10

-

-
-
-
-
-

-
-
-
-
-
-
-
-
-








#include "stdarg.h"
#include "lsmtest.h"
#include "stdio.h"
#include "assert.h"
#include "string.h"
#include "stdlib.h"

#include <sqlite3.h>

#ifndef _WIN32
# include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>


void test_failed(){ 
  assert( 0 );
  return; 
}

#define testSetError(rc) testSetErrorFunc(rc, pRc, __FILE__, __LINE__)
913
914
915
916
917
918
919
920

921
922
923
924
925
926
927
898
899
900
901
902
903
904

905
906
907
908
909
910
911
912







-
+







      pLog = fopen("/tmp/speed.log", "w");
      tdb_lsm_write_hook(pDb, do_speed_write_hook2, (void *)pLog);
#endif
  
      testTimeInit();
      for(i=0; i<nRow; i+=nStep){
        int iStep;
        int nWrite1, nWrite2;
        int nWrite1 = 0, nWrite2 = 0;
        testCaseProgress(i, nRow, testCaseNDot(), &iDot);
        if( pLsm ) lsm_info(pLsm, LSM_INFO_NWRITE, &nWrite1);
        for(iStep=0; iStep<nStep; iStep++){
          u32 aKey[4];                  /* 16-byte key */
          u32 aVal[25];                 /* 100 byte value */
          testPrngArray(i+iStep, aKey, ArraySize(aKey));
          testPrngArray(i+iStep, aVal, ArraySize(aVal));
1235
1236
1237
1238
1239
1240
1241
1242

1243
1244
1245
1246
1247
1248
1249
1220
1221
1222
1223
1224
1225
1226

1227
1228
1229
1230
1231
1232
1233
1234







-
+







  }else{
    printf("Sync after each %d blocks.\n", nSync);
  }

  printf("Preparing file... ");
  fflush(stdout);
  unlink("writer.out");
  fd = open("writer.out", O_RDWR|O_CREAT, 0664);
  fd = open("writer.out", O_RDWR|O_CREAT|_O_BINARY, 0664);
  if( fd<0 ){
    testPrintError("open(): %d - %s\n", errno, strerror(errno));
    return -1;
  }
  testTimeInit();
  for(i=0; i<nBlock; i++){
    int iPg;
Changes to ext/lsm1/lsm-test/lsmtest_mem.c.
41
42
43
44
45
46
47
48
49
50



51
52
53
54
55
56
57
41
42
43
44
45
46
47



48
49
50
51
52
53
54
55
56
57







-
-
-
+
+
+








  /* Mutex to protect pFirst and aHash */
  void (*xEnterMutex)(TmGlobal*); /* Call this to enter the mutex */
  void (*xLeaveMutex)(TmGlobal*); /* Call this to leave mutex */
  void (*xDelMutex)(TmGlobal*);   /* Call this to delete mutex */
  void *pMutex;                   /* Mutex handle */

  void *xSaveMalloc;
  void *xSaveRealloc;
  void *xSaveFree;
  void *(*xSaveMalloc)(void *, size_t);
  void *(*xSaveRealloc)(void *, void *, size_t);
  void (*xSaveFree)(void *, void *);

  /* OOM injection scheduling. If nCountdown is greater than zero when a 
  ** malloc attempt is made, it is decremented. If this means nCountdown 
  ** transitions from 1 to 0, then the allocation fails. If bPersist is true 
  ** when this happens, nCountdown is then incremented back to 1 (so that the 
  ** next attempt fails too).  
  */
179
180
181
182
183
184
185
186

187
188
189
190
191
192
193
179
180
181
182
183
184
185

186
187
188
189
190
191
192
193







-
+








static void tmFree(TmGlobal *pTm, void *p){
  if( p ){
    TmBlockHdr *pHdr;
    u8 *pUser = (u8 *)p;

    tmEnterMutex(pTm);
    pHdr = (TmBlockHdr *)&pUser[BLOCK_HDR_SIZE * -1];
    pHdr = (TmBlockHdr *)(pUser - BLOCK_HDR_SIZE);
    assert( pHdr->iForeGuard==FOREGUARD );
    assert( 0==memcmp(&pUser[pHdr->nByte], &rearguard, 4) );

    if( pHdr->pPrev ){
      assert( pHdr->pPrev->pNext==pHdr );
      pHdr->pPrev->pNext = pHdr->pNext;
    }else{
214
215
216
217
218
219
220
221

222
223
224
225
226
227
228
214
215
216
217
218
219
220

221
222
223
224
225
226
227
228







-
+







static void *tmRealloc(TmGlobal *pTm, void *p, int nByte){
  void *pNew;

  pNew = tmMalloc(pTm, nByte);
  if( pNew && p ){
    TmBlockHdr *pHdr;
    u8 *pUser = (u8 *)p;
    pHdr = (TmBlockHdr *)&pUser[BLOCK_HDR_SIZE * -1];
    pHdr = (TmBlockHdr *)(pUser - BLOCK_HDR_SIZE);
    memcpy(pNew, p, MIN(nByte, pHdr->nByte));
    tmFree(pTm, p);
  }
  return pNew;
}

static void tmMallocOom(
351
352
353
354
355
356
357
358
359
360



361
362
363
364
365
366
367
351
352
353
354
355
356
357



358
359
360
361
362
363
364
365
366
367







-
-
-
+
+
+







  pMutex->pEnv = pEnv;
  pEnv->xMutexStatic(pEnv, LSM_MUTEX_HEAP, &pMutex->pMutex);
  pGlobal->xEnterMutex = tmLsmMutexEnter;
  pGlobal->xLeaveMutex = tmLsmMutexLeave;
  pGlobal->xDelMutex = tmLsmMutexDel;
  pGlobal->pMutex = (void *)pMutex;

  pGlobal->xSaveMalloc = (void *)pEnv->xMalloc;
  pGlobal->xSaveRealloc = (void *)pEnv->xRealloc;
  pGlobal->xSaveFree = (void *)pEnv->xFree;
  pGlobal->xSaveMalloc = pEnv->xMalloc;
  pGlobal->xSaveRealloc = pEnv->xRealloc;
  pGlobal->xSaveFree = pEnv->xFree;

  /* Set up pEnv to the use the new TmGlobal */
  pEnv->pMemCtx = (void *)pGlobal;
  pEnv->xMalloc = tmLsmEnvMalloc;
  pEnv->xRealloc = tmLsmEnvRealloc;
  pEnv->xFree = tmLsmEnvFree;
}
Changes to ext/lsm1/lsm-test/lsmtest_tdb.c.
763
764
765
766
767
768
769

770

771
772
773
774
775
776
777
763
764
765
766
767
768
769
770

771
772
773
774
775
776
777
778







+
-
+







    nLib++;
  }
  zSpec = &zLib[nLib];
  while( *zSpec==' ' ) zSpec++;
  if( *zSpec=='\0' ) zSpec = 0;

  for(i=0; i<ArraySize(aLib); i++){
    if( (int)strlen(aLib[i].zName)==nLib
    if( strlen(aLib[i].zName)==nLib && 0==memcmp(zLib, aLib[i].zName, nLib) ){
        && 0==memcmp(zLib, aLib[i].zName, nLib) ){
      rc = aLib[i].xOpen(zSpec, (zDb ? zDb : aLib[i].zDefaultDb), bClear, ppDb);
      if( rc==0 ){
        (*ppDb)->zLibrary = aLib[i].zName;
      }
      break;
    }
  }
Changes to ext/lsm1/lsm-test/lsmtest_tdb3.c.
195
196
197
198
199
200
201
202

203
204
205
206
207
208


209
210

211
212
213
214


215
216
217


218
219

220
221
222
223

224
225
226
227
228

229
230
231
232
233
234
235
195
196
197
198
199
200
201

202
203
204
205
206


207
208
209

210
211
212


213
214
215


216
217
218

219
220
221
222

223
224
225
226
227

228
229
230
231
232
233
234
235







-
+




-
-
+
+

-
+


-
-
+
+

-
-
+
+

-
+



-
+




-
+







  lsm_env *pRealEnv = tdb_lsm_env();
  LsmFile *p = (LsmFile *)pFile;
  LsmDb *pDb = p->pDb;

  if( pDb->bCrashed ) return LSM_IOERR;

  if( pDb->bPrepareCrash ){
    FileData *pData = &pDb->aFile[p->bLog];
    FileData *pData2 = &pDb->aFile[p->bLog];
    int iFirst;                 
    int iLast;
    int iSector;

    iFirst = (iOff / pDb->szSector);
    iLast =  ((iOff + nData - 1) / pDb->szSector);
    iFirst = (int)(iOff / pDb->szSector);
    iLast =  (int)((iOff + nData - 1) / pDb->szSector);

    if( pData->nSector<(iLast+1) ){
    if( pData2->nSector<(iLast+1) ){
      int nNew = ( ((iLast + 1) + 63) / 64 ) * 64;
      assert( nNew>iLast );
      pData->aSector = (FileSector *)testRealloc(
          pData->aSector, nNew*sizeof(FileSector)
      pData2->aSector = (FileSector *)testRealloc(
          pData2->aSector, nNew*sizeof(FileSector)
      );
      memset(&pData->aSector[pData->nSector], 
          0, (nNew - pData->nSector) * sizeof(FileSector)
      memset(&pData2->aSector[pData2->nSector], 
          0, (nNew - pData2->nSector) * sizeof(FileSector)
      );
      pData->nSector = nNew;
      pData2->nSector = nNew;
    }

    for(iSector=iFirst; iSector<=iLast; iSector++){
      if( pData->aSector[iSector].aOld==0 ){
      if( pData2->aSector[iSector].aOld==0 ){
        u8 *aOld = (u8 *)testMalloc(pDb->szSector);
        pRealEnv->xRead(
            p->pReal, (lsm_i64)iSector*pDb->szSector, aOld, pDb->szSector
        );
        pData->aSector[iSector].aOld = aOld;
        pData2->aSector[iSector].aOld = aOld;
      }
    }
  }

  if( pDb->xWriteHook ){
    int rc;
    int nUs;
543
544
545
546
547
548
549
550
551
552



553
554
555
556
557
558
559
543
544
545
546
547
548
549



550
551
552
553
554
555
556
557
558
559







-
-
-
+
+
+







static int waitOnWorker(LsmDb *pDb){
  int rc;
  int nLimit = -1;
  int nSleep = 0;

  rc = lsm_config(pDb->db, LSM_CONFIG_AUTOFLUSH, &nLimit);
  do {
    int nOld, nNew, rc;
    rc = lsm_info(pDb->db, LSM_INFO_TREE_SIZE, &nOld, &nNew);
    if( rc!=LSM_OK ) return rc;
    int nOld, nNew, rc2;
    rc2 = lsm_info(pDb->db, LSM_INFO_TREE_SIZE, &nOld, &nNew);
    if( rc2!=LSM_OK ) return rc2;
    if( nOld==0 || nNew<(nLimit/2) ) break;
#ifdef LSM_MUTEX_PTHREADS
    mt_signal_worker(pDb, 0);
#endif
    usleep(5000);
    nSleep += 5;
  }while( 1 );
884
885
886
887
888
889
890

891

892
893
894
895
896
897
898
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900







+

+







  testPrintError("syntax error at: \"%s\"\n", z);
  return 1;
}

int tdb_lsm_config_str(TestDb *pDb, const char *zStr){
  int rc = 0;
  if( tdb_lsm(pDb) ){
#ifdef LSM_MUTEX_PTHREADS
    int i;
#endif
    LsmDb *pLsm = (LsmDb *)pDb;

    rc = test_lsm_config_str(pLsm, pLsm->db, 0, zStr, 0);
#ifdef LSM_MUTEX_PTHREADS
    for(i=0; rc==0 && i<pLsm->nWorker; i++){
      rc = test_lsm_config_str(0, pLsm->aWorker[i].pWorker, 1, zStr, 0);
    }
Changes to ext/lsm1/lsm-test/lsmtest_win32.c.
8
9
10
11
12
13
14
15
16

17
18
19
20
21
22


23
24
25
26
27





28
29
30
8
9
10
11
12
13
14

15
16
17
18
19
20


21
22





23
24
25
26
27
28
29
30







-

+




-
-
+
+
-
-
-
-
-
+
+
+
+
+



#define TICKS_UNIX_EPOCH      (116444736000000000LL)

int win32GetTimeOfDay(
  struct timeval *tp,
  void *tzp
){
  FILETIME fileTime;
  ULARGE_INTEGER largeInteger;
  ULONGLONG ticks;
  ULONGLONG unixTicks;

  unused_parameter(tzp);
  memset(&fileTime, 0, sizeof(FILETIME));
  GetSystemTimeAsFileTime(&fileTime);
  memset(&largeInteger, 0, sizeof(ULARGE_INTEGER));
  largeInteger.LowPart = fileTime.dwLowDateTime;
  ticks = (ULONGLONG)fileTime.dwHighDateTime << 32;
  ticks |= (ULONGLONG)fileTime.dwLowDateTime;
  largeInteger.HighPart = fileTime.dwHighDateTime;
  ticks = largeInteger.QuadPart - TICKS_UNIX_EPOCH;
  tp->tv_sec = (long)(ticks / TICKS_PER_SECOND);
  ticks -= ((ULONGLONG)tp->tv_sec * TICKS_PER_SECOND);
  tp->tv_usec = (long)(ticks / TICKS_PER_MICROSECOND);
  unixTicks = ticks - TICKS_UNIX_EPOCH;
  tp->tv_sec = (long)(unixTicks / TICKS_PER_SECOND);
  unixTicks -= ((ULONGLONG)tp->tv_sec * TICKS_PER_SECOND);
  tp->tv_usec = (long)(unixTicks / TICKS_PER_MICROSECOND);

  return 0;
}
#endif
Changes to ext/lsm1/lsmInt.h.
585
586
587
588
589
590
591
592

593
594
595
596
597
598
599
585
586
587
588
589
590
591

592
593
594
595
596
597
598
599







-
+







  u32 nWrite;                     /* Total number of pages written to disk */
};
#define LSM_INITIAL_SNAPSHOT_ID 11

/*
** Functions from file "lsm_ckpt.c".
*/
int lsmCheckpointWrite(lsm_db *, int, u32 *);
int lsmCheckpointWrite(lsm_db *, u32 *);
int lsmCheckpointLevels(lsm_db *, int, void **, int *);
int lsmCheckpointLoadLevels(lsm_db *pDb, void *pVal, int nVal);

int lsmCheckpointRecover(lsm_db *);
int lsmCheckpointDeserialize(lsm_db *, int, u32 *, Snapshot **);

int lsmCheckpointLoadWorker(lsm_db *pDb);
691
692
693
694
695
696
697


698
699
700
701
702
703
704
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706







+
+







/**************************************************************************
** Start of functions from "lsm_file.c".
*/
int lsmFsOpen(lsm_db *, const char *, int);
int lsmFsOpenLog(lsm_db *, int *);
void lsmFsCloseLog(lsm_db *);
void lsmFsClose(FileSystem *);

int lsmFsUnmap(FileSystem *);

int lsmFsConfigure(lsm_db *db);

int lsmFsBlockSize(FileSystem *);
void lsmFsSetBlockSize(FileSystem *, int);
int lsmFsMoveBlock(FileSystem *pFS, Segment *pSeg, int iTo, int iFrom);

Changes to ext/lsm1/lsm_ckpt.c.
218
219
220
221
222
223
224
225

226
227
228
229
230
231
232
218
219
220
221
222
223
224

225
226
227
228
229
230
231
232







-
+







**
** The value of the nCkpt parameter includes the two checksum values at
** the end of the checkpoint. They are not used as inputs to the checksum 
** calculation. The checksum is based on the array of (nCkpt-2) integers
** at aCkpt[].
*/
static void ckptChecksum(u32 *aCkpt, u32 nCkpt, u32 *piCksum1, u32 *piCksum2){
  int i;
  u32 i;
  u32 cksum1 = 1;
  u32 cksum2 = 2;

  if( nCkpt % 2 ){
    cksum1 += aCkpt[nCkpt-3] & 0x0000FFFF;
    cksum2 += aCkpt[nCkpt-3] & 0xFFFF0000;
  }
507
508
509
510
511
512
513
514

515
516
517
518
519
520
521
507
508
509
510
511
512
513

514
515
516
517
518
519
520
521







-
+







  Segment *pSegment               /* Populate this structure */
){
  assert( pSegment->iFirst==0 && pSegment->iLastPg==0 );
  assert( pSegment->nSize==0 && pSegment->iRoot==0 );
  pSegment->iFirst = ckptGobble64(aIn, piIn);
  pSegment->iLastPg = ckptGobble64(aIn, piIn);
  pSegment->iRoot = ckptGobble64(aIn, piIn);
  pSegment->nSize = ckptGobble64(aIn, piIn);
  pSegment->nSize = (int)ckptGobble64(aIn, piIn);
  assert( pSegment->iFirst );
}

static int ckptSetupMerge(lsm_db *pDb, u32 *aInt, int *piIn, Level *pLevel){
  Merge *pMerge;                  /* Allocated Merge object */
  int nInput;                     /* Number of input segments in merge */
  int iIn = *piIn;                /* Next value to read from aInt[] */
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022



1023
1024
1025
1026
1027
1028
1029
1013
1014
1015
1016
1017
1018
1019



1020
1021
1022
1023
1024
1025
1026
1027
1028
1029







-
-
-
+
+
+







    if( rc==LSM_OK && bInclFreelist ){
      nFree = aCkpt[iIn++];
      if( nFree ){
        pNew->freelist.aEntry = (FreelistEntry *)lsmMallocZeroRc(
            pDb->pEnv, sizeof(FreelistEntry)*nFree, &rc
        );
        if( rc==LSM_OK ){
          int i;
          for(i=0; i<nFree; i++){
            FreelistEntry *p = &pNew->freelist.aEntry[i];
          int j;
          for(j=0; j<nFree; j++){
            FreelistEntry *p = &pNew->freelist.aEntry[j];
            p->iBlk = aCkpt[iIn++];
            p->iId = ((i64)(aCkpt[iIn])<<32) + aCkpt[iIn+1];
            iIn += 2;
          }
          pNew->freelist.nEntry = pNew->freelist.nAlloc = nFree;
        }
      }
Changes to ext/lsm1/lsm_file.c.
536
537
538
539
540
541
542
543

544
545
546
547
548
549
550
536
537
538
539
540
541
542

543
544
545
546
547
548
549
550







-
+







  return ((i64)iReal*pFS->nPagesize <= pFS->nMapLimit);
}

/*
** Given that there are currently nHash slots in the hash table, return 
** the hash key for file iFile, page iPg.
*/
static int fsHashKey(int nHash, int iPg){
static int fsHashKey(int nHash, Pgno iPg){
  return (iPg % nHash);
}

/*
** This is a helper function for lsmFsOpen(). It opens a single file on
** disk (either the database or log file).
*/
918
919
920
921
922
923
924
925

926
927

928
929
930
931
932
933
934
918
919
920
921
922
923
924

925
926

927
928
929
930
931
932
933
934







-
+

-
+








/*
** Return the block number of the block that page iPg is located on. 
** Blocks are numbered starting from 1.
*/
static int fsPageToBlock(FileSystem *pFS, Pgno iPg){
  if( pFS->pCompress ){
    return (iPg / pFS->nBlocksize) + 1;
    return (int)((iPg / pFS->nBlocksize) + 1);
  }else{
    return 1 + ((iPg-1) / (pFS->nBlocksize / pFS->nPagesize));
    return (int)(1 + ((iPg-1) / (pFS->nBlocksize / pFS->nPagesize)));
  }
}

/*
** Return true if page iPg is the last page on its block.
**
** This function is only called in non-compressed database mode.
1145
1146
1147
1148
1149
1150
1151











1152
1153
1154
1155
1156
1157
1158
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169







+
+
+
+
+
+
+
+
+
+
+







        pFix->aData += iOff;
      }
      lsmSortedRemap(pFS->pDb);
    }
    *pRc = rc;
  }
}

/*
** If it is mapped, unmap the database file.
*/
int lsmFsUnmap(FileSystem *pFS){
  int rc = LSM_OK;
  if( pFS ){
    rc = lsmEnvRemap(pFS->pEnv, pFS->fdDb, -1, &pFS->pMap, &pFS->nMap);
  }
  return rc;
}

/*
** fsync() the database file.
*/
int lsmFsSyncDb(FileSystem *pFS, int nBlock){
  return lsmEnvSync(pFS->pEnv, pFS->fdDb);
}
1282
1283
1284
1285
1286
1287
1288
1289

1290
1291
1292
1293
1294
1295
1296
1293
1294
1295
1296
1297
1298
1299

1300
1301
1302
1303
1304
1305
1306
1307







-
+







  i64 iEob;                       /* End of block */
  int nRead;
  int rc;

  assert( pFS->pCompress );

  iEob = fsLastPageOnPagesBlock(pFS, iOff) + 1;
  nRead = LSM_MIN(iEob - iOff, nData);
  nRead = (int)LSM_MIN(iEob - iOff, nData);

  rc = lsmEnvRead(pFS->pEnv, pFS->fdDb, iOff, aData, nRead);
  if( rc==LSM_OK && nRead!=nData ){
    int iBlk;

    rc = fsBlockNext(pFS, pSeg, fsPageToBlock(pFS, iOff), &iBlk);
    if( rc==LSM_OK ){
1718
1719
1720
1721
1722
1723
1724
1725
1726


1727
1728
1729
1730
1731
1732
1733
1729
1730
1731
1732
1733
1734
1735


1736
1737
1738
1739
1740
1741
1742
1743
1744







-
-
+
+







static int fsFreeBlock(
  FileSystem *pFS,                /* File system object */
  Snapshot *pSnapshot,            /* Worker snapshot */
  Segment *pIgnore,               /* Ignore this run when searching */
  int iBlk                        /* Block number of block to free */
){
  int rc = LSM_OK;                /* Return code */
  int iFirst;                     /* First page on block iBlk */
  int iLast;                      /* Last page on block iBlk */
  Pgno iFirst;                    /* First page on block iBlk */
  Pgno iLast;                     /* Last page on block iBlk */
  Level *pLevel;                  /* Used to iterate through levels */

  int iIn;                        /* Used to iterate through append points */
  int iOut = 0;                   /* Used to output append points */
  Pgno *aApp = pSnapshot->aiAppend;

  iFirst = fsFirstPageOnBlock(pFS, iBlk);
1852
1853
1854
1855
1856
1857
1858
1859

1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870

1871
1872
1873
1874
1875
1876

1877
1878
1879
1880
1881
1882
1883
1863
1864
1865
1866
1867
1868
1869

1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880

1881
1882
1883
1884
1885
1886

1887
1888
1889
1890
1891
1892
1893
1894







-
+










-
+





-
+







  int iBlk;

  assert( pRun->nSize>0 );
  assert( 0==fsSegmentRedirects(pFS, pRun) );
  assert( nPgno>0 && 0==fsPageRedirects(pFS, pRun, aPgno[0]) );

  iBlk = fsPageToBlock(pFS, pRun->iFirst);
  pRun->nSize += (pRun->iFirst - fsFirstPageOnBlock(pFS, iBlk));
  pRun->nSize += (int)(pRun->iFirst - fsFirstPageOnBlock(pFS, iBlk));

  while( rc==LSM_OK ){
    int iNext = 0;
    Pgno iFirst = firstOnBlock(pFS, iBlk, aPgno, nPgno);
    if( iFirst ){
      pRun->iFirst = iFirst;
      break;
    }
    rc = fsBlockNext(pFS, pRun, iBlk, &iNext);
    if( rc==LSM_OK ) rc = fsFreeBlock(pFS, pSnapshot, pRun, iBlk);
    pRun->nSize -= (
    pRun->nSize -= (int)(
        1 + fsLastPageOnBlock(pFS, iBlk) - fsFirstPageOnBlock(pFS, iBlk)
    );
    iBlk = iNext;
  }

  pRun->nSize -= (pRun->iFirst - fsFirstPageOnBlock(pFS, iBlk));
  pRun->nSize -= (int)(pRun->iFirst - fsFirstPageOnBlock(pFS, iBlk));
  assert( pRun->nSize>0 );
}

/*
** This function is only used in compressed database mode.
**
** Argument iPg is the page number (byte offset) of a page within segment
2083
2084
2085
2086
2087
2088
2089
2090
2091


2092
2093

2094
2095
2096
2097
2098
2099
2100
2094
2095
2096
2097
2098
2099
2100


2101
2102
2103

2104
2105
2106
2107
2108
2109
2110
2111







-
-
+
+

-
+







  Snapshot *pSnapshot,
  Level *pLvl,
  int bDefer,
  Page **ppOut
){
  int rc = LSM_OK;
  Page *pPg = 0;
  int iApp = 0;
  int iNext = 0;
  Pgno iApp = 0;
  Pgno iNext = 0;
  Segment *p = &pLvl->lhs;
  int iPrev = p->iLastPg;
  Pgno iPrev = p->iLastPg;

  *ppOut = 0;
  assert( p->pRedirect==0 );

  if( pFS->pCompress || bDefer ){
    /* In compressed database mode the page is not assigned a page number
    ** or location in the database file at this point. This will be done
2112
2113
2114
2115
2116
2117
2118
2119
2120


2121
2122

2123
2124
2125
2126
2127
2128
2129
2123
2124
2125
2126
2127
2128
2129


2130
2131
2132

2133
2134
2135
2136
2137
2138
2139
2140







-
-
+
+

-
+







      pPg->nRef = 1;
      pFS->nOut++;
    }
  }else{
    if( iPrev==0 ){
      iApp = findAppendPoint(pFS, pLvl);
    }else if( fsIsLast(pFS, iPrev) ){
      int iNext;
      rc = fsBlockNext(pFS, 0, fsPageToBlock(pFS, iPrev), &iNext);
      int iNext2;
      rc = fsBlockNext(pFS, 0, fsPageToBlock(pFS, iPrev), &iNext2);
      if( rc!=LSM_OK ) return rc;
      iApp = fsFirstPageOnBlock(pFS, iNext);
      iApp = fsFirstPageOnBlock(pFS, iNext2);
    }else{
      iApp = iPrev + 1;
    }

    /* If this is the first page allocated, or if the page allocated is the
    ** last in the block, also allocate the next block here.  */
    if( iApp==0 || fsIsLast(pFS, iApp) ){
2453
2454
2455
2456
2457
2458
2459
2460
2461


2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480

2481
2482
2483
2484
2485
2486
2487
2464
2465
2466
2467
2468
2469
2470


2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490

2491
2492
2493
2494
2495
2496
2497
2498







-
-
+
+


















-
+







  int nData,                      /* Size of buffer aData[] in bytes */
  int *pRc                        /* IN/OUT: Error code */
){
  Pgno iRet = 0;
  int rc = *pRc;
  assert( pFS->pCompress );
  if( rc==LSM_OK ){
    int nRem;
    int nWrite;
    int nRem = 0;
    int nWrite = 0;
    Pgno iLastOnBlock;
    Pgno iApp = pSeg->iLastPg+1;

    /* If this is the first data written into the segment, find an append-point
    ** or allocate a new block.  */
    if( iApp==1 ){
      pSeg->iFirst = iApp = findAppendPoint(pFS, 0);
      if( iApp==0 ){
        int iBlk;
        rc = lsmBlockAllocate(pFS->pDb, 0, &iBlk);
        pSeg->iFirst = iApp = fsFirstPageOnBlock(pFS, iBlk);
      }
    }
    iRet = iApp;

    /* Write as much data as is possible at iApp (usually all of it). */
    iLastOnBlock = fsLastPageOnPagesBlock(pFS, iApp);
    if( rc==LSM_OK ){
      int nSpace = iLastOnBlock - iApp + 1;
      int nSpace = (int)(iLastOnBlock - iApp + 1);
      nWrite = LSM_MIN(nData, nSpace);
      nRem = nData - nWrite;
      assert( nWrite>=0 );
      if( nWrite!=0 ){
        rc = lsmEnvWrite(pFS->pEnv, pFS->fdDb, iApp, aData, nWrite);
      }
      iApp += nWrite;
2796
2797
2798
2799
2800
2801
2802
2803

2804
2805
2806
2807
2808
2809
2810
2807
2808
2809
2810
2811
2812
2813

2814
2815
2816
2817
2818
2819
2820
2821







-
+







    Pgno iLast2;
    Pgno iLast = pSeg->iLastPg;     /* Current last page of segment */
    int nPad;                       /* Bytes of padding required */
    u8 aSz[3];

    iLast2 = (1 + iLast/pFS->szSector) * pFS->szSector - 1;
    assert( fsPageToBlock(pFS, iLast)==fsPageToBlock(pFS, iLast2) );
    nPad = iLast2 - iLast;
    nPad = (int)(iLast2 - iLast);

    if( iLast2>fsLastPageOnPagesBlock(pFS, iLast) ){
      nPad -= 4;
    }
    assert( nPad>=0 );

    if( nPad>=6 ){
3253
3254
3255
3256
3257
3258
3259
3260

3261
3262
3263


3264
3265
3266
3267
3268
3269
3270
3264
3265
3266
3267
3268
3269
3270

3271
3272


3273
3274
3275
3276
3277
3278
3279
3280
3281







-
+

-
-
+
+







    ** builds, this probably means the user is running an OOM injection test.
    ** Regardless, it will not be possible to run the integrity-check at this
    ** time, so assume the database is Ok and return non-zero. */
    return 1;
  }

  for(pLevel=pWorker->pLevel; pLevel; pLevel=pLevel->pNext){
    int i;
    int j;
    checkBlocks(pFS, &pLevel->lhs, (pLevel->nRight!=0), nBlock, aUsed);
    for(i=0; i<pLevel->nRight; i++){
      checkBlocks(pFS, &pLevel->aRhs[i], 0, nBlock, aUsed);
    for(j=0; j<pLevel->nRight; j++){
      checkBlocks(pFS, &pLevel->aRhs[j], 0, nBlock, aUsed);
    }
  }

  /* Mark all blocks in the free-list as used */
  ctx.aUsed = aUsed;
  ctx.nBlock = nBlock;
  rc = lsmWalkFreelist(pDb, 0, checkFreelistCb, (void *)&ctx);
Changes to ext/lsm1/lsm_log.c.
541
542
543
544
545
546
547
548

549
550
551
552
553
554
555
541
542
543
544
545
546
547

548
549
550
551
552
553
554
555







-
+







    if( nPad ){
      u8 aPad[7] = {0,0,0,0,0,0,0};
      nPad = 8-nPad;
      if( nPad==1 ){
        aPad[0] = LSM_LOG_PAD1;
      }else{
        aPad[0] = LSM_LOG_PAD2;
        aPad[1] = (nPad-2);
        aPad[1] = (u8)(nPad-2);
      }
      rc = lsmStringBinAppend(&pLog->buf, aPad, nPad);
      if( rc!=LSM_OK ) return rc;
    }

    /* Append the JUMP record to the buffer. Then flush the buffer to disk
    ** and update the checksums. The next write to the log file (assuming
623
624
625
626
627
628
629
630

631
632
633
634
635
636
637
638
639
640
641
642
643

644
645
646
647
648
649
650
623
624
625
626
627
628
629

630
631
632
633
634
635
636
637
638
639
640
641
642

643
644
645
646
647
648
649
650







-
+












-
+







    while( nPad ){
      if( nPad==1 ){
        pLog->buf.z[pLog->buf.n++] = LSM_LOG_PAD1;
        nPad = 0;
      }else{
        int n = LSM_MIN(200, nPad-2);
        pLog->buf.z[pLog->buf.n++] = LSM_LOG_PAD2;
        pLog->buf.z[pLog->buf.n++] = n;
        pLog->buf.z[pLog->buf.n++] = (char)n;
        nPad -= 2;
        memset(&pLog->buf.z[pLog->buf.n], 0x2B, n);
        pLog->buf.n += n;
        nPad -= n;
      }
    }
  }

  /* Make sure there is room in the log-buffer to add the CKSUM or COMMIT
  ** record. Then add the first byte of it.  */
  rc = lsmStringExtend(&pLog->buf, 9);
  if( rc!=LSM_OK ) return rc;
  pLog->buf.z[pLog->buf.n++] = eType;
  pLog->buf.z[pLog->buf.n++] = (char)eType;
  memset(&pLog->buf.z[pLog->buf.n], 0, 8);

  rc = logCksumAndFlush(pDb);

  /* If this is a commit and synchronous=full, sync the log to disk. */
  if( rc==LSM_OK && eType==LSM_LOG_COMMIT && pDb->eSafety==LSM_SAFETY_FULL ){
    rc = lsmFsSyncLog(pDb->pFS);
768
769
770
771
772
773
774
775

776
777
778
779
780
781
782
768
769
770
771
772
773
774

775
776
777
778
779
780
781
782







-
+







  LogWriter *pLog;

  if( pDb->bUseLog==0 ) return;
  pLog = pDb->pLogWriter;

  assert( pMark->iOff<=pLog->iOff+pLog->buf.n );
  if( (pMark->iOff & 0xFFFFFFF8)>=pLog->iOff ){
    pLog->buf.n = pMark->iOff - pLog->iOff;
    pLog->buf.n = (int)(pMark->iOff - pLog->iOff);
    pLog->iCksumBuf = (pLog->buf.n & 0xFFFFFFF8);
  }else{
    pLog->buf.n = pMark->nBuf;
    memcpy(pLog->buf.z, pMark->aBuf, pMark->nBuf);
    pLog->iCksumBuf = 0;
    pLog->iOff = pMark->iOff - pMark->nBuf;
  }
Changes to ext/lsm1/lsm_shared.c.
93
94
95
96
97
98
99
100

101
102
103
104
105
106
107
93
94
95
96
97
98
99

100
101
102
103
104
105
106
107







-
+







#else
# define assertNotInFreelist(x,y)
#endif

/*
** Append an entry to the free-list. If (iId==-1), this is a delete.
*/
int freelistAppend(lsm_db *db, int iBlk, i64 iId){
int freelistAppend(lsm_db *db, u32 iBlk, i64 iId){
  lsm_env *pEnv = db->pEnv;
  Freelist *p;
  int i; 

  assert( iId==-1 || iId>=0 );
  p = db->bUseFreelist ? db->pFreelist : &db->pWorker->freelist;

226
227
228
229
230
231
232
233

234
235
236
237
238
239
240
226
227
228
229
230
231
232

233
234
235
236
237
238
239
240







-
+







    ** contains data. */
    ctx.nBlock = pDb->pWorker->nBlock;
    ctx.iInUse = -1;
    rc = lsmWalkFreelist(pDb, 1, dbTruncateCb, (void *)&ctx);

    /* If the last block that contains data is not already the last block in
    ** the database file, truncate the database file so that it is. */
    if( rc==LSM_OK && ctx.nBlock!=pDb->pWorker->nBlock ){
    if( rc==LSM_OK ){
      rc = lsmFsTruncateDb(
          pDb->pFS, (i64)ctx.nBlock*lsmFsBlockSize(pDb->pFS)
      );
    }
  }

  lsmFreeSnapshot(pDb->pEnv, pDb->pWorker);
248
249
250
251
252
253
254


255
256
257
258
259
260
261
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263







+
+







  if( pDb->bReadonly ){
    lsmShmLock(pDb, LSM_LOCK_DMS3, LSM_LOCK_UNLOCK, 0);
  }else{
    /* Block for an exclusive lock on DMS1. This lock serializes all calls
    ** to doDbConnect() and doDbDisconnect() across all processes.  */
    rc = lsmShmLock(pDb, LSM_LOCK_DMS1, LSM_LOCK_EXCL, 1);
    if( rc==LSM_OK ){

      lsmShmLock(pDb, LSM_LOCK_DMS2, LSM_LOCK_UNLOCK, 0);

      /* Try an exclusive lock on DMS2. If successful, this is the last
      ** connection to the database. In this case flush the contents of the
      ** in-memory tree to disk and write a checkpoint.  */
      rc = lsmShmTestLock(pDb, LSM_LOCK_DMS2, 1, LSM_LOCK_EXCL);
      if( rc==LSM_OK ){
        rc = lsmShmTestLock(pDb, LSM_LOCK_CHECKPOINTER, 1, LSM_LOCK_EXCL);
287
288
289
290
291
292
293
294

295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312

313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
289
290
291
292
293
294
295

296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329

330
331
332
333
334
335
336







-
+


















+














-







            bReadonly = 1;
            rc = LSM_OK;
          }
        }

        /* Write a checkpoint to disk. */
        if( rc==LSM_OK ){
          rc = lsmCheckpointWrite(pDb, (bReadonly==0), 0);
          rc = lsmCheckpointWrite(pDb, 0);
        }

        /* If the checkpoint was written successfully, delete the log file
        ** and, if possible, truncate the database file.  */
        if( rc==LSM_OK ){
          int bRotrans = 0;
          Database *p = pDb->pDatabase;

          /* The log file may only be deleted if there are no clients 
          ** read-only clients running rotrans transactions.  */
          rc = lsmDetectRoTrans(pDb, &bRotrans);
          if( rc==LSM_OK && bRotrans==0 ){
            lsmFsCloseAndDeleteLog(pDb->pFS);
          }

          /* The database may only be truncated if there exist no read-only
          ** clients - either connected or running rotrans transactions. */
          if( bReadonly==0 && bRotrans==0 ){
            lsmFsUnmap(pDb->pFS);
            dbTruncateFile(pDb);
            if( p->pFile && p->bMultiProc ){
              lsmEnvShmUnmap(pDb->pEnv, p->pFile, 1);
            }
          }
        }
      }
    }

    if( pDb->iRwclient>=0 ){
      lsmShmLock(pDb, LSM_LOCK_RWCLIENT(pDb->iRwclient), LSM_LOCK_UNLOCK, 0);
      pDb->iRwclient = -1;
    }

    lsmShmLock(pDb, LSM_LOCK_DMS2, LSM_LOCK_UNLOCK, 0);
    lsmShmLock(pDb, LSM_LOCK_DMS1, LSM_LOCK_UNLOCK, 0);
  }
  pDb->pShmhdr = 0;
}

static int doDbConnect(lsm_db *pDb){
  const int nUsMax = 100000;      /* Max value for nUs */
473
474
475
476
477
478
479



480


481



482
483
484
485
486
487
488
475
476
477
478
479
480
481
482
483
484
485
486
487

488
489
490
491
492
493
494
495
496
497







+
+
+

+
+
-
+
+
+







      ** attempt to take the exclusive lock on DMS2.  */
      if( rc==LSM_OK ){
        int bReadonly = (pDb->bReadonly && pDb->bMultiProc);
        rc = dbOpenSharedFd(pDb->pEnv, p, bReadonly);
      }

      if( rc==LSM_OK && p->bMultiProc==0 ){
        /* Hold an exclusive lock DMS1 while grabbing DMS2. This ensures
        ** that any ongoing call to doDbDisconnect() (even one in another
        ** process) is finished before proceeding.  */
        assert( p->bReadonly==0 );
        rc = lsmEnvLock(pDb->pEnv, p->pFile, LSM_LOCK_DMS1, LSM_LOCK_EXCL);
        if( rc==LSM_OK ){
        rc = lsmEnvLock(pDb->pEnv, p->pFile, LSM_LOCK_DMS2, LSM_LOCK_EXCL);
          rc = lsmEnvLock(pDb->pEnv, p->pFile, LSM_LOCK_DMS2, LSM_LOCK_EXCL);
          lsmEnvLock(pDb->pEnv, p->pFile, LSM_LOCK_DMS1, LSM_LOCK_UNLOCK);
        }
      }

      if( rc==LSM_OK ){
        p->pDbNext = gShared.pDatabase;
        gShared.pDatabase = p;
      }else{
        freeDatabase(pEnv, p);
556
557
558
559
560
561
562

563
564
565
566
567
568
569
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579







+







  if( p ){
    lsm_db **ppDb;

    if( pDb->pShmhdr ){
      doDbDisconnect(pDb);
    }

    lsmFsUnmap(pDb->pFS);
    lsmMutexEnter(pDb->pEnv, p->pClientMutex);
    for(ppDb=&p->pConn; *ppDb!=pDb; ppDb=&((*ppDb)->pNext));
    *ppDb = pDb->pNext;
    dbDeferClose(pDb);
    lsmMutexLeave(pDb->pEnv, p->pClientMutex);

    enterGlobalMutex(pDb->pEnv);
627
628
629
630
631
632
633

634
635
636
637
638


639
640
641
642
643
644
645
646
647
648
649

650
651
652
653
654
655
656
637
638
639
640
641
642
643
644
645
646
647


648
649
650
651
652
653
654
655
656
657
658
659

660
661
662
663
664
665
666
667







+



-
-
+
+










-
+







*/
static int walkFreelistCb(void *pCtx, int iBlk, i64 iSnapshot){
  WalkFreelistCtx *p = (WalkFreelistCtx *)pCtx;
  const int iDir = (p->bReverse ? -1 : 1);
  Freelist *pFree = p->pFreelist;

  assert( p->bDone==0 );
  assert( iBlk>=0 );
  if( pFree ){
    while( (p->iFree < pFree->nEntry) && p->iFree>=0 ){
      FreelistEntry *pEntry = &pFree->aEntry[p->iFree];
      if( (p->bReverse==0 && pEntry->iBlk>iBlk)
       || (p->bReverse!=0 && pEntry->iBlk<iBlk)
      if( (p->bReverse==0 && pEntry->iBlk>(u32)iBlk)
       || (p->bReverse!=0 && pEntry->iBlk<(u32)iBlk)
      ){
        break;
      }else{
        p->iFree += iDir;
        if( pEntry->iId>=0 
            && p->xUsr(p->pUsrctx, pEntry->iBlk, pEntry->iId) 
          ){
          p->bDone = 1;
          return 1;
        }
        if( pEntry->iBlk==iBlk ) return 0;
        if( pEntry->iBlk==(u32)iBlk ) return 0;
      }
    }
  }

  if( p->xUsr(p->pUsrctx, iBlk, iSnapshot) ){
    p->bDone = 1;
    return 1;
901
902
903
904
905
906
907
908

909
910
911
912
913
914
915
912
913
914
915
916
917
918

919
920
921
922
923
924
925
926







-
+







** database itself.
**
** The WORKER lock must not be held when this is called. This is because
** this function may indirectly call fsync(). And the WORKER lock should
** not be held that long (in case it is required by a client flushing an
** in-memory tree to disk).
*/
int lsmCheckpointWrite(lsm_db *pDb, int bTruncate, u32 *pnWrite){
int lsmCheckpointWrite(lsm_db *pDb, u32 *pnWrite){
  int rc;                         /* Return Code */
  u32 nWrite = 0;

  assert( pDb->pWorker==0 );
  assert( 1 || pDb->pClient==0 );
  assert( lsmShmAssertLock(pDb, LSM_LOCK_WORKER, LSM_LOCK_UNLOCK) );

925
926
927
928
929
930
931
932

933
934
935
936
937
938
939
936
937
938
939
940
941
942

943
944
945
946
947
948
949
950







-
+







    /* Check if this checkpoint has already been written to the database
    ** file. If so, set variable bDone to true.  */
    if( pShm->iMetaPage ){
      MetaPage *pPg;              /* Meta page */
      u8 *aData;                  /* Meta-page data buffer */
      int nData;                  /* Size of aData[] in bytes */
      i64 iCkpt;                  /* Id of checkpoint just loaded */
      i64 iDisk;                  /* Id of checkpoint already stored in db */
      i64 iDisk = 0;              /* Id of checkpoint already stored in db */
      iCkpt = lsmCheckpointId(pDb->aSnapshot, 0);
      rc = lsmFsMetaPageGet(pDb->pFS, 0, pShm->iMetaPage, &pPg);
      if( rc==LSM_OK ){
        aData = lsmFsMetaPageData(pPg, &nData);
        iDisk = lsmCheckpointId((u32 *)aData, 1);
        nWrite = lsmCheckpointNWrite((u32 *)aData, 1);
        lsmFsMetaPageRelease(pPg);
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
967
968
969
970
971
972
973




974
975
976
977
978
979
980







-
-
-
-







      }
#ifdef LSM_LOG_WORK
      lsmLogMessage(pDb, 0, "finish checkpoint %d", 
          (int)lsmCheckpointId(pDb->aSnapshot, 0)
      );
#endif
    }

    if( rc==LSM_OK && bTruncate && nBlock>0 ){
      rc = lsmFsTruncateDb(pDb->pFS, (i64)nBlock*lsmFsBlockSize(pDb->pFS));
    }
  }

  lsmShmLock(pDb, LSM_LOCK_CHECKPOINTER, LSM_LOCK_UNLOCK, 0);
  if( pnWrite && rc==LSM_OK ) *pnWrite = nWrite;
  return rc;
}

1743
1744
1745
1746
1747
1748
1749
1750




1751
1752
1753
1754
1755
1756
1757
1750
1751
1752
1753
1754
1755
1756

1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767







-
+
+
+
+







  for(i=iLock; i<(iLock+nLock); i++){
    mask |= ((u64)1 << (iLock-1));
    if( eOp==LSM_LOCK_EXCL ) mask |= ((u64)1 << (iLock+32-1));
  }

  lsmMutexEnter(db->pEnv, p->pClientMutex);
  for(pIter=p->pConn; pIter; pIter=pIter->pNext){
    if( pIter!=db && (pIter->mLock & mask) ) break;
    if( pIter!=db && (pIter->mLock & mask) ){
      assert( pIter!=db );
      break;
    }
  }

  if( pIter ){
    rc = LSM_BUSY;
  }else if( p->bMultiProc ){
    rc = lsmEnvTestLock(db->pEnv, p->pFile, iLock, nLock, eOp);
  }
1871
1872
1873
1874
1875
1876
1877
1878

1879
1880
1881
1882
1883
1884
1885
1881
1882
1883
1884
1885
1886
1887

1888
1889
1890
1891
1892
1893
1894
1895







-
+







** follows:
**
**   (eOp==LSM_LOCK_UNLOCK) -> true if db has no lock on iLock
**   (eOp==LSM_LOCK_SHARED) -> true if db has at least a SHARED lock on iLock.
**   (eOp==LSM_LOCK_EXCL)   -> true if db has an EXCLUSIVE lock on iLock.
*/
int lsmShmAssertLock(lsm_db *db, int iLock, int eOp){
  int ret;
  int ret = 0;
  int eHave;

  assert( iLock>=1 && iLock<=LSM_LOCK_READER(LSM_LOCK_NREADER-1) );
  assert( iLock<=16 );
  assert( eOp==LSM_LOCK_UNLOCK || eOp==LSM_LOCK_SHARED || eOp==LSM_LOCK_EXCL );

  eHave = shmLockType(db, iLock);
1950
1951
1952
1953
1954
1955
1956
1957

1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1960
1961
1962
1963
1964
1965
1966

1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980







-
+














int lsm_checkpoint(lsm_db *pDb, int *pnKB){
  int rc;                         /* Return code */
  u32 nWrite = 0;                 /* Number of pages checkpointed */

  /* Attempt the checkpoint. If successful, nWrite is set to the number of
  ** pages written between this and the previous checkpoint.  */
  rc = lsmCheckpointWrite(pDb, 0, &nWrite);
  rc = lsmCheckpointWrite(pDb, &nWrite);

  /* If required, calculate the output variable (KB of data checkpointed). 
  ** Set it to zero if an error occured.  */
  if( pnKB ){
    int nKB = 0;
    if( rc==LSM_OK && nWrite ){
      nKB = (((i64)nWrite * lsmFsPageSize(pDb->pFS)) + 1023) / 1024;
    }
    *pnKB = nKB;
  }

  return rc;
}
Changes to ext/lsm1/lsm_sorted.c.
658
659
660
661
662
663
664
665

666
667

668
669
670
671
672
673
674
658
659
660
661
662
663
664

665
666

667
668
669
670
671
672
673
674







-
+

-
+







}

static int btreeCursorPtr(u8 *aData, int nData, int iCell){
  int nCell;

  nCell = pageGetNRec(aData, nData);
  if( iCell>=nCell ){
    return pageGetPtr(aData, nData);
    return (int)pageGetPtr(aData, nData);
  }
  return pageGetRecordPtr(aData, nData, iCell);
  return (int)pageGetRecordPtr(aData, nData, iCell);
}

static int btreeCursorNext(BtreeCursor *pCsr){
  int rc = LSM_OK;

  BtreePg *pPg = &pCsr->aPg[pCsr->iPg];
  int nCell; 
747
748
749
750
751
752
753
754

755
756
757
758
759
760
761
747
748
749
750
751
752
753

754
755
756
757
758
759
760
761







-
+







}

static int btreeCursorFirst(BtreeCursor *pCsr){
  int rc;

  Page *pPg = 0;
  FileSystem *pFS = pCsr->pFS;
  int iPg = pCsr->pSeg->iRoot;
  int iPg = (int)pCsr->pSeg->iRoot;

  do {
    rc = lsmFsDbPageGet(pFS, pCsr->pSeg, iPg, &pPg);
    assert( (rc==LSM_OK)==(pPg!=0) );
    if( rc==LSM_OK ){
      u8 *aData;
      int nData;
775
776
777
778
779
780
781
782

783
784
785
786
787
788
789
775
776
777
778
779
780
781

782
783
784
785
786
787
788
789







-
+







        }
      }

      if( rc==LSM_OK ){
        assert( pCsr->aPg[pCsr->nDepth].iCell==0 );
        pCsr->aPg[pCsr->nDepth].pPage = pPg;
        pCsr->nDepth++;
        iPg = pageGetRecordPtr(aData, nData, 0);
        iPg = (int)pageGetRecordPtr(aData, nData, 0);
      }
    }
  }while( rc==LSM_OK );
  lsmFsPageRelease(pPg);
  pCsr->iPg = pCsr->nDepth-1;

  if( rc==LSM_OK && pCsr->nDepth ){
867
868
869
870
871
872
873
874

875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895



896
897
898
899
900
901

902
903

904
905
906
907
908



909
910
911
912
913
914
915
916
917
918
919

920
921
922
923
924
925
926
927
928
929
930


931
932
933
934
935
936
937
938


939
940
941
942
943
944
945
867
868
869
870
871
872
873

874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892



893
894
895
896
897
898
899
900

901
902

903
904
905



906
907
908
909
910
911
912
913
914
915
916
917
918

919
920
921
922
923
924
925
926
927
928


929
930
931
932
933
934
935
936


937
938
939
940
941
942
943
944
945







-
+


















-
-
-
+
+
+





-
+

-
+


-
-
-
+
+
+










-
+









-
-
+
+






-
-
+
+







    /* Populate any other aPg[] array entries */
    if( rc==LSM_OK && nDepth>1 ){
      Blob blob = {0,0,0};
      void *pSeek;
      int nSeek;
      int iTopicSeek;
      int iPg = 0;
      int iLoad = pSeg->iRoot;
      int iLoad = (int)pSeg->iRoot;
      Page *pPg = pCsr->aPg[nDepth-1].pPage;
 
      if( pageObjGetNRec(pPg)==0 ){
        /* This can happen when pPg is the right-most leaf in the b-tree.
        ** In this case, set the iTopicSeek/pSeek/nSeek key to a value
        ** greater than any real key.  */
        assert( iCell==-1 );
        iTopicSeek = 1000;
        pSeek = 0;
        nSeek = 0;
      }else{
        Pgno dummy;
        rc = pageGetBtreeKey(pSeg, pPg,
            0, &dummy, &iTopicSeek, &pSeek, &nSeek, &pCsr->blob
        );
      }

      do {
        Page *pPg;
        rc = lsmFsDbPageGet(pCsr->pFS, pSeg, iLoad, &pPg);
        assert( rc==LSM_OK || pPg==0 );
        Page *pPg2;
        rc = lsmFsDbPageGet(pCsr->pFS, pSeg, iLoad, &pPg2);
        assert( rc==LSM_OK || pPg2==0 );
        if( rc==LSM_OK ){
          u8 *aData;                  /* Buffer containing page data */
          int nData;                  /* Size of aData[] in bytes */
          int iMin;
          int iMax;
          int iCell;
          int iCell2;

          aData = fsPageData(pPg, &nData);
          aData = fsPageData(pPg2, &nData);
          assert( (pageGetFlags(aData, nData) & SEGMENT_BTREE_FLAG) );

          iLoad = pageGetPtr(aData, nData);
          iCell = pageGetNRec(aData, nData); 
          iMax = iCell-1;
          iLoad = (int)pageGetPtr(aData, nData);
          iCell2 = pageGetNRec(aData, nData); 
          iMax = iCell2-1;
          iMin = 0;

          while( iMax>=iMin ){
            int iTry = (iMin+iMax)/2;
            void *pKey; int nKey;         /* Key for cell iTry */
            int iTopic;                   /* Topic for key pKeyT/nKeyT */
            Pgno iPtr;                    /* Pointer for cell iTry */
            int res;                      /* (pSeek - pKeyT) */

            rc = pageGetBtreeKey(
                pSeg, pPg, iTry, &iPtr, &iTopic, &pKey, &nKey, &blob
                pSeg, pPg2, iTry, &iPtr, &iTopic, &pKey, &nKey, &blob
            );
            if( rc!=LSM_OK ) break;

            res = sortedKeyCompare(
                xCmp, iTopicSeek, pSeek, nSeek, iTopic, pKey, nKey
            );
            assert( res!=0 );

            if( res<0 ){
              iLoad = iPtr;
              iCell = iTry;
              iLoad = (int)iPtr;
              iCell2 = iTry;
              iMax = iTry-1;
            }else{
              iMin = iTry+1;
            }
          }

          pCsr->aPg[iPg].pPage = pPg;
          pCsr->aPg[iPg].iCell = iCell;
          pCsr->aPg[iPg].pPage = pPg2;
          pCsr->aPg[iPg].iCell = iCell2;
          iPg++;
          assert( iPg!=nDepth-1 
               || lsmFsRedirectPage(pCsr->pFS, pSeg->pRedirect, iLoad)==iLeaf
          );
        }
      }while( rc==LSM_OK && iPg<(nDepth-1) );
      sortedBlobFree(&blob);
997
998
999
1000
1001
1002
1003
1004

1005
1006
1007
1008
1009
1010
1011
997
998
999
1000
1001
1002
1003

1004
1005
1006
1007
1008
1009
1010
1011







-
+








static void segmentPtrSetPage(SegmentPtr *pPtr, Page *pNext){
  lsmFsPageRelease(pPtr->pPg);
  if( pNext ){
    int nData;
    u8 *aData = fsPageData(pNext, &nData);
    pPtr->nCell = pageGetNRec(aData, nData);
    pPtr->flags = pageGetFlags(aData, nData);
    pPtr->flags = (u16)pageGetFlags(aData, nData);
    pPtr->iPtr = pageGetPtr(aData, nData);
  }
  pPtr->pPg = pNext;
}

/*
** Load a new page into the SegmentPtr object pPtr.
1633
1634
1635
1636
1637
1638
1639
1640

1641
1642
1643
1644
1645
1646
1647
1633
1634
1635
1636
1637
1638
1639

1640
1641
1642
1643
1644
1645
1646
1647







-
+







  int iTopic,                     /* Key topic to seek to */
  void *pKey, int nKey,           /* Key to seek to */
  int eSeek,                      /* Search bias - see above */
  int *piPtr,                     /* OUT: FC pointer */
  int *pbStop
){
  int (*xCmp)(void *, int, void *, int) = pCsr->pDb->xCmp;
  int res;                        /* Result of comparison operation */
  int res = 0;                        /* Result of comparison operation */
  int rc = LSM_OK;
  int iMin;
  int iMax;
  Pgno iPtrOut = 0;

  /* If the current page contains an oversized entry, then there are no
  ** pointers to one or more of the subsequent pages in the sorted run.
1755
1756
1757
1758
1759
1760
1761
1762

1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780

1781
1782
1783
1784
1785
1786
1787
1755
1756
1757
1758
1759
1760
1761

1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779

1780
1781
1782
1783
1784
1785
1786
1787







-
+

















-
+







    ){
      assert( eSeek!=LSM_SEEK_EQ );
      rc = segmentPtrAdvance(pCsr, pPtr, eSeek==LSM_SEEK_LE);
    }
  }

  assert( rc!=LSM_OK || assertSeekResult(pCsr,pPtr,iTopic,pKey,nKey,eSeek) );
  *piPtr = iPtrOut;
  *piPtr = (int)iPtrOut;
  return rc;
}

static int seekInBtree(
  MultiCursor *pCsr,              /* Multi-cursor object */
  Segment *pSeg,                  /* Seek within this segment */
  int iTopic,
  void *pKey, int nKey,           /* Key to seek to */
  Pgno *aPg,                      /* OUT: Page numbers */
  Page **ppPg                     /* OUT: Leaf (sorted-run) page reference */
){
  int i = 0;
  int rc;
  int iPg;
  Page *pPg = 0;
  Blob blob = {0, 0, 0};

  iPg = pSeg->iRoot;
  iPg = (int)pSeg->iRoot;
  do {
    Pgno *piFirst = 0;
    if( aPg ){
      aPg[i++] = iPg;
      piFirst = &aPg[i];
    }

1795
1796
1797
1798
1799
1800
1801
1802

1803
1804
1805
1806
1807
1808
1809
1795
1796
1797
1798
1799
1800
1801

1802
1803
1804
1805
1806
1807
1808
1809







-
+







      int nRec;
      int flags;

      aData = fsPageData(pPg, &nData);
      flags = pageGetFlags(aData, nData);
      if( (flags & SEGMENT_BTREE_FLAG)==0 ) break;

      iPg = pageGetPtr(aData, nData);
      iPg = (int)pageGetPtr(aData, nData);
      nRec = pageGetNRec(aData, nData);

      iMin = 0;
      iMax = nRec-1;
      while( iMax>=iMin ){
        int iTry = (iMin+iMax)/2;
        void *pKeyT; int nKeyT;       /* Key for cell iTry */
1821
1822
1823
1824
1825
1826
1827
1828

1829
1830
1831
1832
1833
1834
1835
1821
1822
1823
1824
1825
1826
1827

1828
1829
1830
1831
1832
1833
1834
1835







-
+







          i++;
        }

        res = sortedKeyCompare(
            pCsr->pDb->xCmp, iTopic, pKey, nKey, iTopicT, pKeyT, nKeyT
        );
        if( res<0 ){
          iPg = iPtr;
          iPg = (int)iPtr;
          iMax = iTry-1;
        }else{
          iMin = iTry+1;
        }
      }
      lsmFsPageRelease(pPg);
      pPg = 0;
1862
1863
1864
1865
1866
1867
1868
1869

1870
1871
1872
1873
1874
1875
1876
1862
1863
1864
1865
1866
1867
1868

1869
1870
1871
1872
1873
1874
1875
1876







-
+







  if( pPtr->pSeg->iRoot ){
    Page *pPg;
    assert( pPtr->pSeg->iRoot!=0 );
    rc = seekInBtree(pCsr, pPtr->pSeg, iTopic, pKey, nKey, 0, &pPg);
    if( rc==LSM_OK ) segmentPtrSetPage(pPtr, pPg);
  }else{
    if( iPtr==0 ){
      iPtr = pPtr->pSeg->iFirst;
      iPtr = (int)pPtr->pSeg->iFirst;
    }
    if( rc==LSM_OK ){
      rc = segmentPtrLoadPage(pCsr->pDb->pFS, pPtr, iPtr);
    }
  }

  if( rc==LSM_OK ){
1919
1920
1921
1922
1923
1924
1925
1926

1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938

1939
1940
1941
1942
1943
1944
1945
1919
1920
1921
1922
1923
1924
1925

1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937

1938
1939
1940
1941
1942
1943
1944
1945







-
+











-
+







  }

  /* If (res<0), then key pKey/nKey is smaller than the split-key (or this
  ** is not a composite level and there is no split-key). Search the 
  ** left-hand-side of the level in this case.  */
  if( res<0 ){
    int iPtr = 0;
    if( nRhs==0 ) iPtr = *piPgno;
    if( nRhs==0 ) iPtr = (int)*piPgno;

    rc = seekInSegment(
        pCsr, &aPtr[0], iTopic, pKey, nKey, iPtr, eSeek, &iOut, &bStop
    );
    if( rc==LSM_OK && nRhs>0 && eSeek==LSM_SEEK_GE && aPtr[0].pPg==0 ){
      res = 0;
    }
  }
  
  if( res>=0 ){
    int bHit = 0;                 /* True if at least one rhs is not EOF */
    int iPtr = *piPgno;
    int iPtr = (int)*piPgno;
    int i;
    for(i=1; rc==LSM_OK && i<=nRhs && bStop==0; i++){
      SegmentPtr *pPtr = &aPtr[i];
      iOut = 0;
      rc = seekInSegment(
          pCsr, pPtr, iTopic, pKey, nKey, iPtr, eSeek, &iOut, &bStop
      );
2003
2004
2005
2006
2007
2008
2009
2010

2011
2012
2013
2014

2015
2016
2017

2018
2019
2020
2021
2022

2023
2024
2025
2026
2027
2028

2029
2030
2031
2032
2033
2034

2035
2036
2037
2038
2039
2040

2041
2042
2043
2044
2045
2046
2047
2003
2004
2005
2006
2007
2008
2009

2010
2011
2012
2013

2014
2015
2016

2017
2018
2019
2020
2021

2022
2023
2024
2025
2026
2027

2028
2029
2030
2031
2032
2033

2034
2035
2036
2037
2038
2039

2040
2041
2042
2043
2044
2045
2046
2047







-
+



-
+


-
+




-
+





-
+





-
+





-
+







    case CURSOR_DATA_SYSTEM: {
      Snapshot *pWorker = pCsr->pDb->pWorker;
      if( pWorker && (pCsr->flags & CURSOR_FLUSH_FREELIST) ){
        int nEntry = pWorker->freelist.nEntry;
        if( pCsr->iFree < (nEntry*2) ){
          FreelistEntry *aEntry = pWorker->freelist.aEntry;
          int i = nEntry - 1 - (pCsr->iFree / 2);
          u32 iKey = 0;
          u32 iKey2 = 0;

          if( (pCsr->iFree % 2) ){
            eType = LSM_END_DELETE|LSM_SYSTEMKEY;
            iKey = aEntry[i].iBlk-1;
            iKey2 = aEntry[i].iBlk-1;
          }else if( aEntry[i].iId>=0 ){
            eType = LSM_INSERT|LSM_SYSTEMKEY;
            iKey = aEntry[i].iBlk;
            iKey2 = aEntry[i].iBlk;

            /* If the in-memory entry immediately before this one was a
             ** DELETE, and the block number is one greater than the current
             ** block number, mark this entry as an "end-delete-range". */
            if( i<(nEntry-1) && aEntry[i+1].iBlk==iKey+1 && aEntry[i+1].iId<0 ){
            if( i<(nEntry-1) && aEntry[i+1].iBlk==iKey2+1 && aEntry[i+1].iId<0 ){
              eType |= LSM_END_DELETE;
            }

          }else{
            eType = LSM_START_DELETE|LSM_SYSTEMKEY;
            iKey = aEntry[i].iBlk + 1;
            iKey2 = aEntry[i].iBlk + 1;
          }

          /* If the in-memory entry immediately after this one is a
          ** DELETE, and the block number is one less than the current
          ** key, mark this entry as an "start-delete-range".  */
          if( i>0 && aEntry[i-1].iBlk==iKey-1 && aEntry[i-1].iId<0 ){
          if( i>0 && aEntry[i-1].iBlk==iKey2-1 && aEntry[i-1].iId<0 ){
            eType |= LSM_START_DELETE;
          }

          pKey = pCsr->pSystemVal;
          nKey = 4;
          lsmPutU32(pKey, ~iKey);
          lsmPutU32(pKey, ~iKey2);
        }
      }
      break;
    }

    default: {
      int iPtr = iKey - CURSOR_DATA_SEGMENT;
2613
2614
2615
2616
2617
2618
2619
2620

2621
2622
2623
2624
2625
2626
2627
2613
2614
2615
2616
2617
2618
2619

2620
2621
2622
2623
2624
2625
2626
2627







-
+







      rc = lsmMCursorLast(pCsr);
    }else{
      rc = lsmMCursorSeek(pCsr, 1, "", 0, LSM_SEEK_GE);
    }

    while( rc==LSM_OK && lsmMCursorValid(pCsr) && rtIsSystem(pCsr->eType) ){
      void *pKey; int nKey;
      void *pVal; int nVal;
      void *pVal = 0; int nVal = 0;

      rc = lsmMCursorKey(pCsr, &pKey, &nKey);
      if( rc==LSM_OK ) rc = lsmMCursorValue(pCsr, &pVal, &nVal);
      if( rc==LSM_OK && (nKey!=4 || nVal!=8) ) rc = LSM_CORRUPT_BKPT;

      if( rc==LSM_OK ){
        int iBlk;
3471
3472
3473
3474
3475
3476
3477
3478

3479
3480
3481
3482
3483
3484
3485
3471
3472
3473
3474
3475
3476
3477

3478
3479
3480
3481
3482
3483
3484
3485







-
+







  p = &pMW->hier;

  if( p->apHier==0 && pSeg->iRoot!=0 ){
    FileSystem *pFS = pMW->pDb->pFS;
    lsm_env *pEnv = pMW->pDb->pEnv;
    Page **apHier = 0;
    int nHier = 0;
    int iPg = pSeg->iRoot;
    int iPg = (int)pSeg->iRoot;

    do {
      Page *pPg = 0;
      u8 *aData;
      int nData;
      int flags;

3497
3498
3499
3500
3501
3502
3503
3504

3505
3506
3507
3508
3509
3510
3511
3497
3498
3499
3500
3501
3502
3503

3504
3505
3506
3507
3508
3509
3510
3511







-
+







          break;
        }
        apHier = apNew;
        memmove(&apHier[1], &apHier[0], sizeof(Page *) * nHier);
        nHier++;

        apHier[0] = pPg;
        iPg = pageGetPtr(aData, nData);
        iPg = (int)pageGetPtr(aData, nData);
      }else{
        lsmFsPageRelease(pPg);
        break;
      }
    }while( 1 );

    if( rc==LSM_OK ){
3616
3617
3618
3619
3620
3621
3622
3623

3624
3625

3626
3627
3628
3629
3630
3631
3632
3616
3617
3618
3619
3620
3621
3622

3623
3624

3625
3626
3627
3628
3629
3630
3631
3632







-
+

-
+








      /* If the key will fit on this page, break out of the loop here.
      ** The new entry will be written to page apHier[iLevel]. */
      pOld = p->apHier[iLevel];
      assert( lsmFsPageWritable(pOld) );
      aData = fsPageData(pOld, &nData);
      if( eType==0 ){
        nByte = 2 + 1 + lsmVarintLen32(iPtr) + lsmVarintLen32(iKeyPg);
        nByte = 2 + 1 + lsmVarintLen32((int)iPtr) + lsmVarintLen32((int)iKeyPg);
      }else{
        nByte = 2 + 1 + lsmVarintLen32(iPtr) + lsmVarintLen32(nKey) + nKey;
        nByte = 2 + 1 + lsmVarintLen32((int)iPtr) + lsmVarintLen32(nKey) + nKey;
      }
      nRec = pageGetNRec(aData, nData);
      nFree = SEGMENT_EOF(nData, nRec) - mergeWorkerPageOffset(aData, nData);
      if( nByte<=nFree ) break;

      /* Otherwise, this page is full. Set the right-hand-child pointer
      ** to iPtr and release it.  */
3659
3660
3661
3662
3663
3664
3665
3666
3667


3668
3669
3670
3671


3672
3673
3674

3675
3676
3677
3678
3679
3680
3681
3659
3660
3661
3662
3663
3664
3665


3666
3667
3668
3669


3670
3671
3672
3673

3674
3675
3676
3677
3678
3679
3680
3681







-
-
+
+


-
-
+
+


-
+







    }
  }

  /* Write the key into page apHier[iLevel]. */
  aData = fsPageData(p->apHier[iLevel], &nData);
  iOff = mergeWorkerPageOffset(aData, nData);
  nRec = pageGetNRec(aData, nData);
  lsmPutU16(&aData[SEGMENT_CELLPTR_OFFSET(nData, nRec)], iOff);
  lsmPutU16(&aData[SEGMENT_NRECORD_OFFSET(nData)], nRec+1);
  lsmPutU16(&aData[SEGMENT_CELLPTR_OFFSET(nData, nRec)], (u16)iOff);
  lsmPutU16(&aData[SEGMENT_NRECORD_OFFSET(nData)], (u16)(nRec+1));
  if( eType==0 ){
    aData[iOff++] = 0x00;
    iOff += lsmVarintPut32(&aData[iOff], iPtr);
    iOff += lsmVarintPut32(&aData[iOff], iKeyPg);
    iOff += lsmVarintPut32(&aData[iOff], (int)iPtr);
    iOff += lsmVarintPut32(&aData[iOff], (int)iKeyPg);
  }else{
    aData[iOff++] = eType;
    iOff += lsmVarintPut32(&aData[iOff], iPtr);
    iOff += lsmVarintPut32(&aData[iOff], (int)iPtr);
    iOff += lsmVarintPut32(&aData[iOff], nKey);
    memcpy(&aData[iOff], pKey, nKey);
  }

  return rc;
}

3914
3915
3916
3917
3918
3919
3920
3921

3922
3923
3924
3925
3926
3927
3928
3929
3930

3931
3932
3933
3934
3935
3936
3937
3914
3915
3916
3917
3918
3919
3920

3921
3922
3923
3924
3925
3926
3927
3928
3929

3930
3931
3932
3933
3934
3935
3936
3937







-
+








-
+







  int iFPtr = 0;                  /* Pointer value read from footer of pPg */
  MultiCursor *pCsr = pMW->pCsr;

  assert( pMW->pPage==0 );

  if( pCsr->pBtCsr ){
    rc = LSM_OK;
    iFPtr = pMW->pLevel->pNext->lhs.iFirst;
    iFPtr = (int)pMW->pLevel->pNext->lhs.iFirst;
  }else if( pCsr->nPtr>0 ){
    Segment *pSeg;
    pSeg = pCsr->aPtr[pCsr->nPtr-1].pSeg;
    rc = lsmFsDbPageGet(pMW->pDb->pFS, pSeg, pSeg->iFirst, &pPg);
    if( rc==LSM_OK ){
      u8 *aData;                    /* Buffer for page pPg */
      int nData;                    /* Size of aData[] in bytes */
      aData = fsPageData(pPg, &nData);
      iFPtr = pageGetPtr(aData, nData);
      iFPtr = (int)pageGetPtr(aData, nData);
      lsmFsPageRelease(pPg);
    }
  }

  if( rc==LSM_OK ){
    rc = mergeWorkerNextPage(pMW, iFPtr);
    if( pCsr->pPrevMergePtr ) *pCsr->pPrevMergePtr = iFPtr;
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958



3959
3960

3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976

3977
3978
3979
3980
3981
3982
3983
3949
3950
3951
3952
3953
3954
3955



3956
3957
3958
3959

3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975

3976
3977
3978
3979
3980
3981
3982
3983







-
-
-
+
+
+

-
+















-
+







  int iPtr                        /* Absolute value of page pointer, or 0 */
){
  int rc = LSM_OK;                /* Return code */
  Merge *pMerge;                  /* Persistent part of level merge state */
  int nHdr;                       /* Space required for this record header */
  Page *pPg;                      /* Page to write to */
  u8 *aData;                      /* Data buffer for page pWriter->pPage */
  int nData;                      /* Size of buffer aData[] in bytes */
  int nRec;                       /* Number of records on page pPg */
  int iFPtr;                      /* Value of pointer in footer of pPg */
  int nData = 0;                  /* Size of buffer aData[] in bytes */
  int nRec = 0;                   /* Number of records on page pPg */
  int iFPtr = 0;                  /* Value of pointer in footer of pPg */
  int iRPtr = 0;                  /* Value of pointer written into record */
  int iOff;                       /* Current write offset within page pPg */
  int iOff = 0;                   /* Current write offset within page pPg */
  Segment *pSeg;                  /* Segment being written */
  int flags = 0;                  /* If != 0, flags value for page footer */
  int bFirst = 0;                 /* True for first key of output run */

  pMerge = pMW->pLevel->pMerge;    
  pSeg = &pMW->pLevel->lhs;

  if( pSeg->iFirst==0 && pMW->pPage==0 ){
    rc = mergeWorkerFirstPage(pMW);
    bFirst = 1;
  }
  pPg = pMW->pPage;
  if( pPg ){
    aData = fsPageData(pPg, &nData);
    nRec = pageGetNRec(aData, nData);
    iFPtr = pageGetPtr(aData, nData);
    iFPtr = (int)pageGetPtr(aData, nData);
    iRPtr = iPtr - iFPtr;
  }
     
  /* Figure out how much space is required by the new record. The space
  ** required is divided into two sections: the header and the body. The
  ** header consists of the intial varint fields. The body are the blobs 
  ** of data that correspond to the key and value data. The entire header 
3995
3996
3997
3998
3999
4000
4001
4002

4003
4004
4005
4006
4007
4008
4009
3995
3996
3997
3998
3999
4000
4001

4002
4003
4004
4005
4006
4007
4008
4009







-
+







    nHdr = 1 + lsmVarintLen32(iRPtr) + lsmVarintLen32(nKey);
    if( rtIsWrite(eType) ) nHdr += lsmVarintLen32(nVal);

    /* If the entire header will not fit on page pPg, or if page pPg is 
    ** marked read-only, advance to the next page of the output run. */
    iOff = pMerge->iOutputOff;
    if( iOff<0 || pPg==0 || iOff+nHdr > SEGMENT_EOF(nData, nRec+1) ){
      iFPtr = *pMW->pCsr->pPrevMergePtr;
      iFPtr = (int)*pMW->pCsr->pPrevMergePtr;
      iRPtr = iPtr - iFPtr;
      iOff = 0;
      nRec = 0;
      rc = mergeWorkerNextPage(pMW, iFPtr);
      pPg = pMW->pPage;
    }
  }
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038



4039
4040
4041

4042
4043
4044
4045
4046
4047
4048
4029
4030
4031
4032
4033
4034
4035



4036
4037
4038
4039
4040

4041
4042
4043
4044
4045
4046
4047
4048







-
-
-
+
+
+


-
+







  }

  /* Update the output segment */
  if( rc==LSM_OK ){
    aData = fsPageData(pPg, &nData);

    /* Update the page footer. */
    lsmPutU16(&aData[SEGMENT_NRECORD_OFFSET(nData)], nRec+1);
    lsmPutU16(&aData[SEGMENT_CELLPTR_OFFSET(nData, nRec)], iOff);
    if( flags ) lsmPutU16(&aData[SEGMENT_FLAGS_OFFSET(nData)], flags);
    lsmPutU16(&aData[SEGMENT_NRECORD_OFFSET(nData)], (u16)(nRec+1));
    lsmPutU16(&aData[SEGMENT_CELLPTR_OFFSET(nData, nRec)], (u16)iOff);
    if( flags ) lsmPutU16(&aData[SEGMENT_FLAGS_OFFSET(nData)], (u16)flags);

    /* Write the entry header into the current page. */
    aData[iOff++] = eType;                                               /* 1 */
    aData[iOff++] = (u8)eType;                                           /* 1 */
    iOff += lsmVarintPut32(&aData[iOff], iRPtr);                         /* 2 */
    iOff += lsmVarintPut32(&aData[iOff], nKey);                          /* 3 */
    if( rtIsWrite(eType) ) iOff += lsmVarintPut32(&aData[iOff], nVal);   /* 4 */
    pMerge->iOutputOff = iOff;

    /* Write the key and data into the segment. */
    assert( iFPtr==pageGetPtr(aData, nData) );
4256
4257
4258
4259
4260
4261
4262
4263

4264
4265
4266
4267
4268
4269
4270
4256
4257
4258
4259
4260
4261
4262

4263
4264
4265
4266
4267
4268
4269
4270







-
+







      rc = multiCursorGetVal(pCsr, iVal, &pVal, &nVal);
      if( pVal && rc==LSM_OK ){
        assert( nVal>=0 );
        rc = sortedBlobSet(pDb->pEnv, &pCsr->val, pVal, nVal);
        pVal = pCsr->val.pData;
      }
      if( rc==LSM_OK ){
        rc = mergeWorkerWrite(pMW, eType, pKey, nKey, pVal, nVal, iPtr);
        rc = mergeWorkerWrite(pMW, eType, pKey, nKey, pVal, nVal, (int)iPtr);
      }
    }
  }

  /* Advance the cursor to the next input record (assuming one exists). */
  assert( lsmMCursorValid(pMW->pCsr) );
  if( rc==LSM_OK ) rc = lsmMCursorNext(pMW->pCsr);
4577
4578
4579
4580
4581
4582
4583
4584

4585
4586
4587
4588
4589
4590
4591
4577
4578
4579
4580
4581
4582
4583

4584
4585
4586
4587
4588
4589
4590
4591







-
+







      int i;
      for(i=0; rc==LSM_OK && i<pCsr->nPtr; i++){
        MergeInput *pInput = &pMerge->aInput[i];
        if( pInput->iPg ){
          SegmentPtr *pPtr;
          assert( pCsr->aPtr[i].pPg==0 );
          pPtr = &pCsr->aPtr[i];
          rc = segmentPtrLoadPage(pDb->pFS, pPtr, pInput->iPg);
          rc = segmentPtrLoadPage(pDb->pFS, pPtr, (int)pInput->iPg);
          if( rc==LSM_OK && pPtr->nCell>0 ){
            rc = segmentPtrLoadCell(pPtr, pInput->iCell);
          }
        }
      }

      if( rc==LSM_OK && pCsr->pBtCsr ){
5180
5181
5182
5183
5184
5185
5186
5187

5188
5189
5190
5191
5192
5193
5194
5180
5181
5182
5183
5184
5185
5186

5187
5188
5189
5190
5191
5192
5193
5194







-
+







    u32 nUnsync;
    int nPgsz;

    lsmCheckpointSynced(pDb, 0, 0, &nSync);
    nUnsync = lsmCheckpointNWrite(pDb->pShmhdr->aSnap1, 0);
    nPgsz = lsmCheckpointPgsz(pDb->pShmhdr->aSnap1);

    nMax = LSM_MIN(nMax, (pDb->nAutockpt/nPgsz) - (int)(nUnsync-nSync));
    nMax = (int)LSM_MIN(nMax, (pDb->nAutockpt/nPgsz) - (int)(nUnsync-nSync));
    if( nMax<nRem ){
      bCkpt = 1;
      nRem = LSM_MAX(nMax, 0);
    }
  }

  /* If there exists in-memory data ready to be flushed to disk, attempt
5518
5519
5520
5521
5522
5523
5524
5525

5526
5527
5528
5529
5530
5531
5532
5533
5534
5535
5536

5537
5538
5539
5540
5541
5542
5543
5518
5519
5520
5521
5522
5523
5524

5525
5526
5527
5528
5529
5530
5531
5532
5533
5534
5535

5536
5537
5538
5539
5540
5541
5542
5543







-
+










-
+







  int flags;
  u8 *aData;
  int nData;

  aData = fsPageData(pPg, &nData);

  nRec = pageGetNRec(aData, nData);
  iPtr = pageGetPtr(aData, nData);
  iPtr = (int)pageGetPtr(aData, nData);
  flags = pageGetFlags(aData, nData);

  lsmStringInit(&s, pDb->pEnv);
  lsmStringAppendf(&s,"nCell=%d iPtr=%d flags=%d {", nRec, iPtr, flags);
  if( flags&SEGMENT_BTREE_FLAG ) iPtr = 0;

  for(i=0; i<nRec; i++){
    Page *pRef = 0;               /* Pointer to page iRef */
    int iChar;
    u8 *aKey; int nKey = 0;       /* Key */
    u8 *aVal; int nVal = 0;       /* Value */
    u8 *aVal = 0; int nVal = 0;   /* Value */
    int iTopic;
    u8 *aCell;
    int iPgPtr;
    int eType;

    aCell = pageGetCell(aData, nData, i);
    eType = *aCell++;
5589
5590
5591
5592
5593
5594
5595
5596

5597
5598
5599
5600
5601
5602
5603
5589
5590
5591
5592
5593
5594
5595

5596
5597
5598
5599
5600
5601
5602
5603







-
+







  int *piPgPtr,
  u8 **paKey, int *pnKey,
  u8 **paVal, int *pnVal,
  Blob *pBlob
){
  u8 *aData; int nData;           /* Page data */
  u8 *aKey; int nKey = 0;         /* Key */
  u8 *aVal; int nVal = 0;         /* Value */
  u8 *aVal = 0; int nVal = 0;     /* Value */
  int eType;
  int iPgPtr;
  Page *pRef = 0;                 /* Pointer to page iRef */
  u8 *aCell;

  aData = fsPageData(pPg, &nData);

5695
5696
5697
5698
5699
5700
5701
5702

5703
5704
5705
5706
5707
5708
5709


5710
5711
5712
5713
5714
5715

5716
5717
5718
5719
5720
5721
5722
5695
5696
5697
5698
5699
5700
5701

5702
5703
5704
5705
5706
5707


5708
5709
5710
5711
5712
5713
5714

5715
5716
5717
5718
5719
5720
5721
5722







-
+





-
-
+
+





-
+








  if( rc==LSM_OK ){
    Blob blob = {0, 0, 0, 0};
    int nKeyWidth = 0;
    LsmString str;
    int nRec;
    int iPtr;
    int flags;
    int flags2;
    int iCell;
    u8 *aData; int nData;         /* Page data and size thereof */

    aData = fsPageData(pPg, &nData);
    nRec = pageGetNRec(aData, nData);
    iPtr = pageGetPtr(aData, nData);
    flags = pageGetFlags(aData, nData);
    iPtr = (int)pageGetPtr(aData, nData);
    flags2 = pageGetFlags(aData, nData);

    lsmStringInit(&str, pDb->pEnv);
    lsmStringAppendf(&str, "Page : %lld  (%d bytes)\n", iPg, nData);
    lsmStringAppendf(&str, "nRec : %d\n", nRec);
    lsmStringAppendf(&str, "iPtr : %d\n", iPtr);
    lsmStringAppendf(&str, "flags: %04x\n", flags);
    lsmStringAppendf(&str, "flags: %04x\n", flags2);
    lsmStringAppendf(&str, "\n");

    for(iCell=0; iCell<nRec; iCell++){
      int nKey;
      infoCellDump(
          pDb, pSeg, bIndirect, pPg, iCell, 0, 0, 0, &nKey, 0, 0, &blob
      );
5731
5732
5733
5734
5735
5736
5737
5738

5739
5740
5741
5742
5743
5744
5745
5731
5732
5733
5734
5735
5736
5737

5738
5739
5740
5741
5742
5743
5744
5745







-
+







      int eType;
      Pgno iAbsPtr;
      char zFlags[8];

      infoCellDump(pDb, pSeg, bIndirect, pPg, iCell, &eType, &iPgPtr,
          &aKey, &nKey, &aVal, &nVal, &blob
      );
      iAbsPtr = iPgPtr + ((flags & SEGMENT_BTREE_FLAG) ? 0 : iPtr);
      iAbsPtr = iPgPtr + ((flags2 & SEGMENT_BTREE_FLAG) ? 0 : iPtr);

      lsmFlagsToString(eType, zFlags);
      lsmStringAppendf(&str, "%s %d (%s) ", 
          zFlags, iAbsPtr, (rtTopic(eType) ? "sys" : "usr")
      );
      infoAppendBlob(&str, bHex, aKey, nKey); 
      if( nVal>0 && bValues ){
Changes to ext/lsm1/lsm_tree.c.
274
275
276
277
278
279
280

281
282

283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303

304
305
306
307
308
309
310
274
275
276
277
278
279
280
281
282

283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303

304
305
306
307
308
309
310
311







+

-
+




















-
+








/*
** The pointer passed as the first argument points to an interior node,
** not a leaf. This function returns the offset of the iCell'th child
** sub-tree of the node.
*/
static u32 getChildPtr(TreeNode *p, int iVersion, int iCell){
  assert( iVersion>=0 );
  assert( iCell>=0 && iCell<=array_size(p->aiChildPtr) );
  if( p->iV2 && p->iV2<=iVersion && iCell==p->iV2Child ) return p->iV2Ptr;
  if( p->iV2 && p->iV2<=(u32)iVersion && iCell==p->iV2Child ) return p->iV2Ptr;
  return p->aiChildPtr[iCell];
}

/*
** Given an offset within the *-shm file, return the associated chunk number.
*/
static int treeOffsetToChunk(u32 iOff){
  assert( LSM_SHM_CHUNK_SIZE==(1<<15) );
  return (int)(iOff>>15);
}

#define treeShmptrUnsafe(pDb, iPtr) \
(&((u8*)((pDb)->apShm[(iPtr)>>15]))[(iPtr) & (LSM_SHM_CHUNK_SIZE-1)])

/*
** Return a pointer to the mapped memory location associated with *-shm 
** file offset iPtr.
*/
static void *treeShmptr(lsm_db *pDb, u32 iPtr){

  assert( (iPtr>>15)<pDb->nShm );
  assert( (iPtr>>15)<(u32)pDb->nShm );
  assert( pDb->apShm[iPtr>>15] );

  return iPtr ? treeShmptrUnsafe(pDb, iPtr) : 0;
}

static ShmChunk * treeShmChunk(lsm_db *pDb, int iChunk){
  return (ShmChunk *)(pDb->apShm[iChunk]);
515
516
517
518
519
520
521
522

523
524
525
526
527
528
529
516
517
518
519
520
521
522

523
524
525
526
527
528
529
530







-
+







    printf("% 6d %.*sleaf%.*s: %s\n", 
        iNode, nPath, zPath, 20-nPath-4, zSpace, s.z
    );
    lsmStringClear(&s);
  }else{
    for(i=0; i<4 && nHeight>0; i++){
      u32 iPtr = getChildPtr(pNode, pDb->treehdr.root.iTransId, i);
      zPath[nPath] = i+'0';
      zPath[nPath] = (char)(i+'0');
      zPath[nPath+1] = '/';

      if( iPtr ){
        dump_node_contents(pDb, iPtr, zPath, nPath+2, nHeight-1);
      }
      if( i!=3 && pNode->aiKeyPtr[i] ){
        TreeKey *pKey = treeShmkey(pDb, pNode->aiKeyPtr[i], TKV_LOADKEY,&b,&rc);
640
641
642
643
644
645
646
647

648
649
650
651
652
653
654
641
642
643
644
645
646
647

648
649
650
651
652
653
654
655







-
+







      iWrite = (iWrite + 3) & ~0x0003;
      assert( (iWrite % 4)==0 );
    }

    assert( iWrite );
    iChunk = treeOffsetToChunk(iWrite-1);
    iEof = (iChunk+1) * CHUNK_SIZE;
    assert( iEof>=iWrite && (iEof-iWrite)<CHUNK_SIZE );
    assert( iEof>=iWrite && (iEof-iWrite)<(u32)CHUNK_SIZE );
    if( (iWrite+nByte)>iEof ){
      ShmChunk *pHdr;           /* Header of chunk just finished (iChunk) */
      ShmChunk *pFirst;         /* Header of chunk treehdr.iFirst */
      ShmChunk *pNext;          /* Header of new chunk */
      int iNext = 0;            /* Next chunk */
      int rc = LSM_OK;

753
754
755
756
757
758
759
760

761
762
763
764
765
766
767
754
755
756
757
758
759
760

761
762
763
764
765
766
767
768







-
+







    while( nRem>0 ){
      u8 *aAlloc;
      int nAlloc;
      u32 iWrite;

      iWrite = (pDb->treehdr.iWrite & (LSM_SHM_CHUNK_SIZE-1));
      iWrite = LSM_MAX(iWrite, LSM_SHM_CHUNK_HDR);
      nAlloc = LSM_MIN((LSM_SHM_CHUNK_SIZE-iWrite), nRem);
      nAlloc = LSM_MIN((LSM_SHM_CHUNK_SIZE-iWrite), (u32)nRem);

      aAlloc = treeShmptr(pDb, treeShmalloc(pDb, 0, nAlloc, pRc));
      if( aAlloc==0 ) break;
      memcpy(aAlloc, &a[n-nRem], nAlloc);
      nRem -= nAlloc;
    }
    a = pVal;
1205
1206
1207
1208
1209
1210
1211
1212

1213
1214
1215
1216
1217
1218
1219
1206
1207
1208
1209
1210
1211
1212

1213
1214
1215
1216
1217
1218
1219
1220







-
+







      }
    }else{
      p = 0;
    }
    nVisit++;
  }

  if( rc==LSM_OK && nVisit!=db->treehdr.nChunk-1 ){
  if( rc==LSM_OK && (u32)nVisit!=db->treehdr.nChunk-1 ){
    rc = LSM_CORRUPT_BKPT;
  }
  return rc;
}

/*
** Iterate through the current in-memory tree. If there are any v2-pointers
1255
1256
1257
1258
1259
1260
1261
1262

1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282

1283
1284
1285
1286
1287
1288
1289
1290

1291
1292
1293
1294

1295
1296
1297
1298
1299
1300
1301
1256
1257
1258
1259
1260
1261
1262

1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282

1283
1284
1285
1286
1287
1288
1289
1290

1291
1292
1293
1294

1295
1296
1297
1298
1299
1300
1301
1302







-
+



















-
+







-
+



-
+







  int i;
  ShmChunk *p;
  ShmChunk *pMin = 0;
  u32 iMin = 0;

  /* Iterate through all shm chunks. Find the smallest shm-id present in
  ** the shared-memory region. */
  for(i=1; rc==LSM_OK && i<db->treehdr.nChunk; i++){
  for(i=1; rc==LSM_OK && (u32)i<db->treehdr.nChunk; i++){
    p = treeShmChunkRc(db, i, &rc);
    if( p && (pMin==0 || shm_sequence_ge(pMin->iShmid, p->iShmid)) ){
      pMin = p;
      iMin = i;
    }
  }

  /* Fix the shm-id values on any chunks with a shm-id greater than or 
  ** equal to treehdr.iNextShmid. Then do a merge-sort of all chunks to 
  ** fix the ShmChunk.iNext pointers.
  */
  if( rc==LSM_OK ){
    int nSort;
    int nByte;
    u32 iPrevShmid;
    ShmChunkLoc *aSort;

    /* Allocate space for a merge sort. */
    nSort = 1;
    while( nSort < (db->treehdr.nChunk-1) ) nSort = nSort * 2;
    while( (u32)nSort < (db->treehdr.nChunk-1) ) nSort = nSort * 2;
    nByte = sizeof(ShmChunkLoc) * nSort * 2;
    aSort = lsmMallocZeroRc(db->pEnv, nByte, &rc);
    iPrevShmid = pMin->iShmid;

    /* Fix all shm-ids, if required. */
    if( rc==LSM_OK ){
      iPrevShmid = pMin->iShmid-1;
      for(i=1; i<db->treehdr.nChunk; i++){
      for(i=1; (u32)i<db->treehdr.nChunk; i++){
        p = treeShmChunk(db, i);
        aSort[i-1].pShm = p;
        aSort[i-1].iLoc = i;
        if( i!=db->treehdr.iFirst ){
        if( (u32)i!=db->treehdr.iFirst ){
          if( shm_sequence_ge(p->iShmid, db->treehdr.iNextShmid) ){
            p->iShmid = iPrevShmid--;
          }
        }
      }
      if( iMin!=db->treehdr.iFirst ){
        p = treeShmChunk(db, db->treehdr.iFirst);
1371
1372
1373
1374
1375
1376
1377
1378

1379
1380
1381
1382
1383
1384
1385
1372
1373
1374
1375
1376
1377
1378

1379
1380
1381
1382
1383
1384
1385
1386







-
+







    TreeRoot *p = &db->treehdr.root;
    TreeNode *pNew;
    u32 iNew;
    TreeNode *pNode = pCsr->apTreeNode[pCsr->iNode];
    int iCell = pCsr->aiCell[pCsr->iNode];

    /* Create a copy of this node */
    if( (pCsr->iNode>0 && pCsr->iNode==(p->nHeight-1)) ){
    if( (pCsr->iNode>0 && (u32)pCsr->iNode==(p->nHeight-1)) ){
      pNew = copyTreeLeaf(db, (TreeLeaf *)pNode, &iNew, pRc);
    }else{
      pNew = copyTreeNode(db, pNode, &iNew, pRc);
    }

    if( pNew ){
      /* Modify the value in the new version */
1394
1395
1396
1397
1398
1399
1400
1401

1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422

1423
1424
1425
1426
1427
1428
1429
1395
1396
1397
1398
1399
1400
1401

1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422

1423
1424
1425
1426
1427
1428
1429
1430







-
+




















-
+







}

static int treeNextIsEndDelete(lsm_db *db, TreeCursor *pCsr){
  int iNode = pCsr->iNode;
  int iCell = pCsr->aiCell[iNode]+1;

  /* Cursor currently points to a leaf node. */
  assert( pCsr->iNode==(db->treehdr.root.nHeight-1) );
  assert( (u32)pCsr->iNode==(db->treehdr.root.nHeight-1) );

  while( iNode>=0 ){
    TreeNode *pNode = pCsr->apTreeNode[iNode];
    if( iCell<3 && pNode->aiKeyPtr[iCell] ){
      int rc = LSM_OK;
      TreeKey *pKey = treeShmptr(db, pNode->aiKeyPtr[iCell]);
      assert( rc==LSM_OK );
      return ((pKey->flags & LSM_END_DELETE) ? 1 : 0);
    }
    iNode--;
    iCell = pCsr->aiCell[iNode];
  }

  return 0;
}

static int treePrevIsStartDelete(lsm_db *db, TreeCursor *pCsr){
  int iNode = pCsr->iNode;

  /* Cursor currently points to a leaf node. */
  assert( pCsr->iNode==(db->treehdr.root.nHeight-1) );
  assert( (u32)pCsr->iNode==(db->treehdr.root.nHeight-1) );

  while( iNode>=0 ){
    TreeNode *pNode = pCsr->apTreeNode[iNode];
    int iCell = pCsr->aiCell[iNode]-1;
    if( iCell>=0 && pNode->aiKeyPtr[iCell] ){
      int rc = LSM_OK;
      TreeKey *pKey = treeShmptr(db, pNode->aiKeyPtr[iCell]);
1446
1447
1448
1449
1450
1451
1452
1453

1454
1455
1456
1457
1458
1459
1460
1447
1448
1449
1450
1451
1452
1453

1454
1455
1456
1457
1458
1459
1460
1461







-
+







  int nVal                        /* Bytes in value data (or -ve for delete) */
){
  int rc = LSM_OK;                /* Return Code */
  TreeKey *pTreeKey;              /* New key-value being inserted */
  u32 iTreeKey;
  TreeRoot *p = &pDb->treehdr.root;
  TreeCursor csr;                 /* Cursor to seek to pKey/nKey */
  int res;                        /* Result of seek operation on csr */
  int res = 0;                    /* Result of seek operation on csr */

  assert( nVal>=0 || pVal==0 );
  assert_tree_looks_ok(LSM_OK, pTree);
  assert( flags==LSM_INSERT       || flags==LSM_POINT_DELETE 
       || flags==LSM_START_DELETE || flags==LSM_END_DELETE 
  );
  assert( (flags & LSM_CONTIGUOUS)==0 );
1593
1594
1595
1596
1597
1598
1599
1600

1601
1602

1603
1604
1605
1606
1607
1608
1609
1594
1595
1596
1597
1598
1599
1600

1601
1602

1603
1604
1605
1606
1607
1608
1609
1610







-
+

-
+







  int iSlot = pCsr->aiCell[pCsr->iNode];
  int bLeaf;
  int rc = LSM_OK;

  assert( pNode->aiKeyPtr[1] );
  assert( pNode->aiKeyPtr[iSlot] );
  assert( iSlot==0 || iSlot==1 || iSlot==2 );
  assert( (pCsr->iNode==(db->treehdr.root.nHeight-1))==(iNewptr==0) );
  assert( ((u32)pCsr->iNode==(db->treehdr.root.nHeight-1))==(iNewptr==0) );

  bLeaf = (pCsr->iNode==(p->nHeight-1) && p->nHeight>1);
  bLeaf = ((u32)pCsr->iNode==(p->nHeight-1) && p->nHeight>1);
  
  if( pNode->aiKeyPtr[0] || pNode->aiKeyPtr[2] ){
    /* There are currently at least 2 keys on this node. So just create
    ** a new copy of the node with one of the keys removed. If the node
    ** happens to be the root node of the tree, allocate an entire 
    ** TreeNode structure instead of just a TreeLeaf.  */
    TreeNode *pNew;
1760
1761
1762
1763
1764
1765
1766
1767

1768
1769
1770
1771
1772
1773
1774
1761
1762
1763
1764
1765
1766
1767

1768
1769
1770
1771
1772
1773
1774
1775







-
+







          }
        }
      }
      if( iDir==-1 ){
        iPSlot--;
        pNew1->aiKeyPtr[iKOut++] = pParent->aiKeyPtr[iPSlot];
        if( bLeaf==0 ) pNew1->aiChildPtr[iPOut++] = iNewptr;
        pCsr->aiCell[pCsr->iNode] = iPSlot;
        pCsr->aiCell[pCsr->iNode] = (u8)iPSlot;
      }

      rc = treeDeleteEntry(db, pCsr, iNew1);
    }
  }

  return rc;
1835
1836
1837
1838
1839
1840
1841
1842

1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857

1858
1859
1860
1861
1862
1863
1864
1836
1837
1838
1839
1840
1841
1842

1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857

1858
1859
1860
1861
1862
1863
1864
1865







-
+














-
+







    bDone = 1;
    if( lsmTreeCursorValid(&csr) ){
      lsmTreeCursorKey(&csr, 0, &pDel, &nDel);
      if( treeKeycmp(pDel, nDel, pKey2, nKey2)<0 ) bDone = 0;
    }

    if( bDone==0 ){
      if( csr.iNode==(p->nHeight-1) ){
      if( (u32)csr.iNode==(p->nHeight-1) ){
        /* The element to delete already lies on a leaf node */
        rc = treeDeleteEntry(db, &csr, 0);
      }else{
        /* 1. Overwrite the current key with a copy of the next key in the 
        **    tree (key N).
        **
        ** 2. Seek to key N (cursor will stop at the internal node copy of
        **    N). Move to the next key (original copy of N). Delete
        **    this entry. 
        */
        u32 iKey;
        TreeKey *pKey;
        int iNode = csr.iNode;
        lsmTreeCursorNext(&csr);
        assert( csr.iNode==(p->nHeight-1) );
        assert( (u32)csr.iNode==(p->nHeight-1) );

        iKey = csr.apTreeNode[csr.iNode]->aiKeyPtr[csr.aiCell[csr.iNode]];
        lsmTreeCursorPrev(&csr);

        treeOverwriteKey(db, &csr, iKey, &rc);
        pKey = treeShmkey(db, iKey, TKV_LOADKEY, &blob, &rc);
        if( pKey ){
2024
2025
2026
2027
2028
2029
2030
2031

2032
2033
2034
2035
2036
2037
2038

2039
2040
2041
2042
2043

2044
2045
2046
2047
2048
2049
2050
2025
2026
2027
2028
2029
2030
2031

2032
2033
2034
2035
2036
2037
2038

2039
2040
2041
2042
2043

2044
2045
2046
2047
2048
2049
2050
2051







-
+






-
+




-
+







        pTreeKey = (TreeKey*)treeShmptrUnsafe(pDb, iTreeKey);
        if( !(pTreeKey->flags & LSM_CONTIGUOUS) ){
          pTreeKey = treeShmkey(pDb, iTreeKey, TKV_LOADKEY, &b, &rc);
          if( rc ) break;
        }
        res = treeKeycmp((void *)&pTreeKey[1], pTreeKey->nKey, pKey, nKey);
        if( res==0 ){
          pCsr->aiCell[iNode] = iTest;
          pCsr->aiCell[iNode] = (u8)iTest;
          break;
        }
      }else{
        iTest = 1;
      }

      if( iNode<(pRoot->nHeight-1) ){
      if( (u32)iNode<(pRoot->nHeight-1) ){
        iNodePtr = getChildPtr(pNode, pRoot->iTransId, iTest + (res<0));
      }else{
        iNodePtr = 0;
      }
      pCsr->aiCell[iNode] = iTest + (iNodePtr && (res<0));
      pCsr->aiCell[iNode] = (u8)(iTest + (iNodePtr && (res<0)));
    }

    *pRes = res;
    pCsr->iNode = iNode;
    tblobFree(pDb, &b);
  }

2163
2164
2165
2166
2167
2168
2169
2170

2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182

2183
2184
2185
2186
2187
2188
2189
2164
2165
2166
2167
2168
2169
2170

2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182

2183
2184
2185
2186
2187
2188
2189
2190







-
+











-
+







      u32 iNodePtr;
      pCsr->iNode++;
      iNodePtr = getChildPtr(pNode, pRoot->iTransId, iCell);
      pNode = (TreeNode *)treeShmptr(pDb, iNodePtr);
      if( rc!=LSM_OK ) break;
      pCsr->apTreeNode[pCsr->iNode] = pNode;
      iCell = 1 + (pNode->aiKeyPtr[2]!=0) + (pCsr->iNode < iLeaf);
      pCsr->aiCell[pCsr->iNode] = iCell;
      pCsr->aiCell[pCsr->iNode] = (u8)iCell;
    }while( pCsr->iNode < iLeaf );
  }

  /* Otherwise, the next key is found by following pointer up the tree until
  ** there is a key immediately to the left of the pointer followed to reach
  ** the sub-tree containing the current key. */
  else{
    do {
      iCell = pCsr->aiCell[pCsr->iNode]-1;
      if( iCell>=0 && pCsr->apTreeNode[pCsr->iNode]->aiKeyPtr[iCell] ) break;
    }while( (--pCsr->iNode)>=0 );
    pCsr->aiCell[pCsr->iNode] = iCell;
    pCsr->aiCell[pCsr->iNode] = (u8)iCell;
  }

#ifndef NDEBUG
  if( pCsr->iNode>=0 ){
    TreeKey *pK2 = csrGetKey(pCsr, &pCsr->blob, &rc);
    assert( rc || treeKeycmp(TKV_KEY(pK2),pK2->nKey,TKV_KEY(pK1),pK1->nKey)<0 );
  }
2220
2221
2222
2223
2224
2225
2226
2227

2228
2229
2230
2231
2232

2233
2234
2235
2236
2237
2238
2239
2221
2222
2223
2224
2225
2226
2227

2228
2229
2230
2231
2232

2233
2234
2235
2236
2237
2238
2239
2240







-
+




-
+







      iCell = ((pNode->aiKeyPtr[2]==0) ? 2 : 3);
    }else{
      iCell = ((pNode->aiKeyPtr[0]==0) ? 1 : 0);
    }
    pCsr->iNode++;
    pCsr->apTreeNode[pCsr->iNode] = pNode;

    if( pCsr->iNode<pRoot->nHeight-1 ){
    if( (u32)pCsr->iNode<pRoot->nHeight-1 ){
      iNodePtr = getChildPtr(pNode, pRoot->iTransId, iCell);
    }else{
      iNodePtr = 0;
    }
    pCsr->aiCell[pCsr->iNode] = iCell - (iNodePtr==0 && bLast);
    pCsr->aiCell[pCsr->iNode] = (u8)(iCell - (iNodePtr==0 && bLast));
  }

  return rc;
}

int lsmTreeCursorFlags(TreeCursor *pCsr){
  int flags = 0;
Changes to ext/lsm1/lsm_varint.c.
172
173
174
175
176
177
178
179

180
181
182
183
184
185
186
172
173
174
175
176
177
178

179
180
181
182
183
184
185
186







-
+







  }
  if( z[0]==250 ){
    *piVal = (z[1]<<16) + (z[2]<<8) + z[3];
    return 4;
  }

  ret = lsmSqlite4GetVarint64(z, &i);
  *piVal = i;
  *piVal = (int)i;
  return ret;
}

int lsmVarintLen32(int n){
  u8 aData[9];
  return lsmVarintPut32(aData, n);
}
Changes to ext/lsm1/lsm_vtab.c.
40
41
42
43
44
45
46

















47
48
49
50
51
52
53
54
55
56
57
58
59
60

61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77


78


79
80
81
82
83
84
85
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97

98
99
100
101
102
103
104
105
106







+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+














+

















+
+
-
+
+







struct lsm1_cursor {
  sqlite3_vtab_cursor base;  /* Base class - must be first */
  lsm_cursor *pLsmCur;       /* The LSM cursor */
  u8 isDesc;                 /* 0: scan forward.  1: scan reverse */
  u8 atEof;                  /* True if the scan is complete */
  u8 bUnique;                /* True if no more than one row of output */
};

/* Dequote the string */
static void lsm1Dequote(char *z){
  int j;
  char cQuote = z[0];
  size_t i, n;

  if( cQuote!='\'' && cQuote!='"' ) return;
  n = strlen(z);
  if( n<2 || z[n-1]!=z[0] ) return;
  for(i=1, j=0; i<n-1; i++){
    if( z[i]==cQuote && z[i+1]==cQuote ) i++;
    z[j++] = z[i];
  }
  z[j] = 0;
}


/*
** The lsm1Connect() method is invoked to create a new
** lsm1_vtab that describes the virtual table.
*/
static int lsm1Connect(
  sqlite3 *db,
  void *pAux,
  int argc, const char *const*argv,
  sqlite3_vtab **ppVtab,
  char **pzErr
){
  lsm1_vtab *pNew;
  int rc;
  char *zFilename;

  if( argc!=4 || argv[3]==0 || argv[3][0]==0 ){
    *pzErr = sqlite3_mprintf("filename argument missing");
    return SQLITE_ERROR;
  }
  *ppVtab = sqlite3_malloc( sizeof(*pNew) );
  pNew = (lsm1_vtab*)*ppVtab;
  if( pNew==0 ){
    return SQLITE_NOMEM;
  }
  memset(pNew, 0, sizeof(*pNew));
  rc = lsm_new(0, &pNew->pDb);
  if( rc ){
    *pzErr = sqlite3_mprintf("lsm_new failed with error code %d",  rc);
    rc = SQLITE_ERROR;
    goto connect_failed;
  }
  zFilename = sqlite3_mprintf("%s", argv[3]);
  lsm1Dequote(zFilename);
  rc = lsm_open(pNew->pDb, argv[3]);
  rc = lsm_open(pNew->pDb, zFilename);
  sqlite3_free(zFilename);
  if( rc ){
    *pzErr = sqlite3_mprintf("lsm_open failed with %d", rc);
    rc = SQLITE_ERROR;
    goto connect_failed;
  }

/* Column numbers */
153
154
155
156
157
158
159
160

161
162
163
164
165
166
167
174
175
176
177
178
179
180

181
182
183
184
185
186
187
188







-
+









/*
** Advance a lsm1_cursor to its next row of output.
*/
static int lsm1Next(sqlite3_vtab_cursor *cur){
  lsm1_cursor *pCur = (lsm1_cursor*)cur;
  int rc;
  int rc = LSM_OK;
  if( pCur->bUnique ){
    pCur->atEof = 1;
  }else{
    if( pCur->isDesc ){
      rc = lsm_csr_prev(pCur->pLsmCur);
    }else{
      rc = lsm_csr_next(pCur->pLsmCur);
364
365
366
367
368
369
370
371

372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388

389
390
391
392
393
394
395
385
386
387
388
389
390
391

392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408

409
410
411
412
413
414
415
416







-
+
















-
+







        pVal = (const void*)sqlite3_value_text(pValue);
        if( pVal==0 ) return SQLITE_NOMEM;
      }
      if( nVal+1>nSpace ){
        pSpace = sqlite3_malloc( nVal+1 );
        if( pSpace==0 ) return SQLITE_NOMEM;
      }
      pSpace[0] = eType;
      pSpace[0] = (unsigned char)eType;
      memcpy(&pSpace[1], pVal, nVal);
      *ppKey = pSpace;
      *pnKey = nVal+1;
      break;
    }
    case SQLITE_INTEGER: {
      sqlite3_int64 iVal = sqlite3_value_int64(pValue);
      sqlite3_uint64 uVal;
      if( iVal<0 ){
        if( iVal==0xffffffffffffffffLL ) return SQLITE_ERROR;
        uVal = *(sqlite3_uint64*)&iVal;
        eType = LSM1_TYPE_NEGATIVE;
      }else{
        uVal = iVal;
        eType = LSM1_TYPE_POSITIVE;
      }
      pSpace[0] = eType;
      pSpace[0] = (unsigned char)eType;
      *ppKey = pSpace;
      *pnKey = 1 + lsm1PutVarint64(&pSpace[1], uVal);
    }
  }
  return SQLITE_OK;
}

591
592
593
594
595
596
597

598
599
600

601
602
603
604
605
606
607
612
613
614
615
616
617
618
619
620
621

622
623
624
625
626
627
628
629







+


-
+







  sqlite3_vtab *pVTab,
  int argc,
  sqlite3_value **argv,
  sqlite_int64 *pRowid
){
  lsm1_vtab *p = (lsm1_vtab*)pVTab;
  const void *pKey;
  void *pFree = 0;
  int nKey;
  int eType;
  int rc;
  int rc = LSM_OK;
  sqlite3_value *pValue;
  const unsigned char *pVal;
  unsigned char *pData;
  int nVal;
  unsigned char pSpace[100];

  if( argc==1 ){
625
626
627
628
629
630
631

632
633
634
635
636
637
638
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661







+







    nKey = sqlite3_value_bytes(argv[2+LSM1_COLUMN_BLOBKEY]);
  }else{
    /* Use a key encoding that sorts in lexicographical order */
    rc = lsm1EncodeKey(argv[2+LSM1_COLUMN_KEY],
                       (unsigned char**)&pKey,&nKey,
                       pSpace,sizeof(pSpace));
    if( rc ) return rc;
    if( pKey!=(const void*)pSpace ) pFree = (void*)pKey;
  }
  if( sqlite3_value_type(argv[2+LSM1_COLUMN_BLOBVALUE])==SQLITE_BLOB ){
    pVal = sqlite3_value_blob(argv[2+LSM1_COLUMN_BLOBVALUE]);
    nVal = sqlite3_value_bytes(argv[2+LSM1_COLUMN_BLOBVALUE]);
    rc = lsm_insert(p->pDb, pKey, nKey, pVal, nVal);
  }else{
    pValue = argv[2+LSM1_COLUMN_VALUE];
650
651
652
653
654
655
656
657

658
659
660
661
662
663
664
673
674
675
676
677
678
679

680
681
682
683
684
685
686
687







-
+







          pVal = (unsigned char*)sqlite3_value_blob(pValue);
        }
        nVal = sqlite3_value_bytes(pValue);
        pData = sqlite3_malloc( nVal+1 );
        if( pData==0 ){
          rc = SQLITE_NOMEM;
        }else{
          pData[0] = eType;
          pData[0] = (unsigned char)eType;
          memcpy(&pData[1], pVal, nVal);
          rc = lsm_insert(p->pDb, pKey, nKey, pData, nVal+1);
          sqlite3_free(pData);
        }
        break;
      }
      case SQLITE_INTEGER:
673
674
675
676
677
678
679
680

681
682
683
684
685
686

687
688
689
690
691
692
693
696
697
698
699
700
701
702

703
704
705
706
707
708

709
710
711
712
713
714
715
716







-
+





-
+







          assert( sizeof(r)==sizeof(x) );
          memcpy(&x, &r, sizeof(r));
        }
        for(i=8; x>0 && i>=1; i--){
          aVal[i] = x & 0xff;
          x >>= 8;
        }
        aVal[i] = eType;
        aVal[i] = (unsigned char)eType;
        rc = lsm_insert(p->pDb, pKey, nKey, &aVal[i], 9-i);
        break;
      }
    }
  }
  if( pKey!=(const void*)pSpace ) sqlite3_free((void*)pKey);
  sqlite3_free(pFree);
  return rc==LSM_OK ? SQLITE_OK : SQLITE_ERROR;
}      

/* Begin a transaction
*/
static int lsm1Begin(sqlite3_vtab *pVtab){
  lsm1_vtab *p = (lsm1_vtab*)pVtab;
Changes to ext/lsm1/lsm_win32.c.
43
44
45
46
47
48
49
50

51
52
53


54
55

56
57
58
59
60
61
62
43
44
45
46
47
48
49

50
51


52
53
54

55
56
57
58
59
60
61
62







-
+

-
-
+
+

-
+







  LPVOID pMap;                    /* Pointer to mapping of file fd */
  size_t nMap;                    /* Size of mapping at pMap in bytes */
  int nShm;                       /* Number of entries in ahShm[]/apShm[] */
  LPHANDLE ahShm;                 /* Array of handles for shared mappings */
  LPVOID *apShm;                  /* Array of 32K shared memory segments */
};

static char *win32ShmFile(Win32File *p){
static char *win32ShmFile(Win32File *pWin32File){
  char *zShm;
  int nName = strlen(p->zName);
  zShm = (char *)lsmMallocZero(p->pEnv, nName+4+1);
  int nName = strlen(pWin32File->zName);
  zShm = (char *)lsmMallocZero(pWin32File->pEnv, nName+4+1);
  if( zShm ){
    memcpy(zShm, p->zName, nName);
    memcpy(zShm, pWin32File->zName, nName);
    memcpy(&zShm[nName], "-shm", 5);
  }
  return zShm;
}

static int win32Sleep(int us){
  Sleep((us + 999) / 1000);
375
376
377
378
379
380
381












382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400



401
402
403

404
405
406
407
408
409
410
411
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407





408
409
410



411

412
413
414
415
416
417
418







+
+
+
+
+
+
+
+
+
+
+
+














-
-
-
-
-
+
+
+
-
-
-
+
-








  return rc;
}

static int lsmWin32OsSectorSize(lsm_file *pFile){
  return 512;
}

static void win32Unmap(Win32File *pWin32File){
  if( pWin32File->pMap!=NULL ){
    UnmapViewOfFile(pWin32File->pMap);
    pWin32File->pMap = NULL;
    pWin32File->nMap = 0;
  }
  if( pWin32File->hMap!=NULL ){
    CloseHandle(pWin32File->hMap);
    pWin32File->hMap = NULL;
  }
}

static int lsmWin32OsRemap(
  lsm_file *pFile,
  lsm_i64 iMin,
  void **ppOut,
  lsm_i64 *pnOut
){
  Win32File *pWin32File = (Win32File *)pFile;

  /* If the file is between 0 and 2MB in size, extend it in chunks of 256K.
  ** Thereafter, in chunks of 1MB at a time.  */
  const int aIncrSz[] = {256*1024, 1024*1024};
  int nIncrSz = aIncrSz[iMin>(2*1024*1024)];

  if( pWin32File->pMap!=NULL ){
    UnmapViewOfFile(pWin32File->pMap);
    *ppOut = pWin32File->pMap = NULL;
    *pnOut = pWin32File->nMap = 0;
  }
  *ppOut = NULL;
  *pnOut = 0;

  if( pWin32File->hMap!=NULL ){
    CloseHandle(pWin32File->hMap);
    pWin32File->hMap = NULL;
  win32Unmap(pWin32File);
  }
  if( iMin>=0 ){
    LARGE_INTEGER fileSize;
    DWORD dwSizeHigh;
    DWORD dwSizeLow;
    HANDLE hMap;
    LPVOID pMap;
    memset(&fileSize, 0, sizeof(LARGE_INTEGER));
576
577
578
579
580
581
582
583
584






585
586
587
588
589
590

591
592
593
594

595
596
597
598

599
600
601
602
603
604
605
606

607
608
609
610
611
612
613

614
615

616
617

618
619
620
621
622
623
624
625
626
627
628
629
630





631
632
633
634
635

636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
583
584
585
586
587
588
589


590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605

606
607
608
609

610
611
612
613
614
615
616
617

618
619
620
621
622
623
624

625
626

627


628






629






630
631
632
633
634





635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650

651
652
653
654
655
656
657







-
-
+
+
+
+
+
+






+



-
+



-
+







-
+






-
+

-
+
-
-
+
-
-
-
-
-
-

-
-
-
-
-
-
+
+
+
+
+
-
-
-
-
-
+















-







}

#if !defined(win32IsLockBusy)
#define win32IsLockBusy(a) (((a)==ERROR_LOCK_VIOLATION) || \
                            ((a)==ERROR_IO_PENDING))
#endif

static int lsmWin32OsLock(lsm_file *pFile, int iLock, int eType){
  Win32File *pWin32File = (Win32File *)pFile;
static int win32LockFile(
  Win32File *pWin32File,
  int iLock,
  int nLock,
  int eType
){
  OVERLAPPED ovlp;

  assert( LSM_LOCK_UNLOCK==0 );
  assert( LSM_LOCK_SHARED==1 );
  assert( LSM_LOCK_EXCL==2 );
  assert( eType>=LSM_LOCK_UNLOCK && eType<=LSM_LOCK_EXCL );
  assert( nLock>=0 );
  assert( iLock>0 && iLock<=32 );

  memset(&ovlp, 0, sizeof(OVERLAPPED));
  ovlp.Offset = (4096-iLock);
  ovlp.Offset = (4096-iLock-nLock+1);
  if( eType>LSM_LOCK_UNLOCK ){
    DWORD flags = LOCKFILE_FAIL_IMMEDIATELY;
    if( eType>=LSM_LOCK_EXCL ) flags |= LOCKFILE_EXCLUSIVE_LOCK;
    if( !LockFileEx(pWin32File->hFile, flags, 0, 1, 0, &ovlp) ){
    if( !LockFileEx(pWin32File->hFile, flags, 0, (DWORD)nLock, 0, &ovlp) ){
      if( win32IsLockBusy(GetLastError()) ){
        return LSM_BUSY;
      }else{
        return LSM_IOERR_BKPT;
      }
    }
  }else{
    if( !UnlockFileEx(pWin32File->hFile, 0, 1, 0, &ovlp) ){
    if( !UnlockFileEx(pWin32File->hFile, 0, (DWORD)nLock, 0, &ovlp) ){
      return LSM_IOERR_BKPT;
    }
  }
  return LSM_OK;
}

static int lsmWin32OsTestLock(lsm_file *pFile, int iLock, int nLock, int eType){
static int lsmWin32OsLock(lsm_file *pFile, int iLock, int eType){
  Win32File *pWin32File = (Win32File *)pFile;
  DWORD flags = LOCKFILE_FAIL_IMMEDIATELY;
  return win32LockFile(pWin32File, iLock, 1, eType);
  OVERLAPPED ovlp;

}
  assert( LSM_LOCK_UNLOCK==0 );
  assert( LSM_LOCK_SHARED==1 );
  assert( LSM_LOCK_EXCL==2 );
  assert( eType==LSM_LOCK_SHARED || eType==LSM_LOCK_EXCL );
  assert( nLock>=0 );
  assert( iLock>0 && iLock<=32 );

  if( eType>=LSM_LOCK_EXCL ) flags |= LOCKFILE_EXCLUSIVE_LOCK;
  memset(&ovlp, 0, sizeof(OVERLAPPED));
  ovlp.Offset = (4096-iLock-nLock+1);
  if( !LockFileEx(pWin32File->hFile, flags, 0, (DWORD)nLock, 0, &ovlp) ){
    if( win32IsLockBusy(GetLastError()) ){
      return LSM_BUSY;
static int lsmWin32OsTestLock(lsm_file *pFile, int iLock, int nLock, int eType){
  int rc;
  Win32File *pWin32File = (Win32File *)pFile;
  rc = win32LockFile(pWin32File, iLock, nLock, eType);
  if( rc!=LSM_OK ) return rc;
    }else{
      return LSM_IOERR_BKPT;
    }
  }
  UnlockFileEx(pWin32File->hFile, 0, (DWORD)nLock, 0, &ovlp);
  win32LockFile(pWin32File, iLock, nLock, LSM_LOCK_UNLOCK);
  return LSM_OK;
}

static int lsmWin32OsShmMap(lsm_file *pFile, int iChunk, int sz, void **ppShm){
  int rc;
  Win32File *pWin32File = (Win32File *)pFile;
  int iOffset = iChunk * sz;
  int iOffsetShift = iOffset % pWin32File->sysInfo.dwAllocationGranularity;
  int nNew = iChunk + 1;
  lsm_i64 nReq = nNew * sz;

  *ppShm = NULL;
  assert( sz>=0 );
  assert( sz==LSM_SHM_CHUNK_SIZE );
  if( iChunk>=pWin32File->nShm ){
    int i;
    LPHANDLE ahNew;
    LPVOID *apNew;
    LARGE_INTEGER fileSize;

    /* If the shared-memory file has not been opened, open it now. */
    if( pWin32File->hShmFile==NULL ){
      char *zShm = win32ShmFile(pWin32File);
674
675
676
677
678
679
680
681

682
683
684
685
686
687
688
689


690
691
692
693
694
695
696
697
698
699
700
673
674
675
676
677
678
679

680
681
682
683
684
685
686


687
688




689
690
691
692
693
694
695







-
+






-
-
+
+
-
-
-
-







    if( fileSize.QuadPart<nReq ){
      rc = win32Truncate(pWin32File->hShmFile, nReq);
      if( rc!=LSM_OK ){
        return rc;
      }
    }

    ahNew = (LPHANDLE)lsmMallocZero(pWin32File->pEnv, sizeof(LPHANDLE) * nNew);
    ahNew = (LPHANDLE)lsmMallocZero(pWin32File->pEnv, sizeof(HANDLE) * nNew);
    if( !ahNew ) return LSM_NOMEM_BKPT;
    apNew = (LPVOID *)lsmMallocZero(pWin32File->pEnv, sizeof(LPVOID) * nNew);
    if( !apNew ){
      lsmFree(pWin32File->pEnv, ahNew);
      return LSM_NOMEM_BKPT;
    }
    memcpy(ahNew, pWin32File->ahShm, pWin32File->nShm);
    memcpy(apNew, pWin32File->apShm, pWin32File->nShm);
    memcpy(ahNew, pWin32File->ahShm, sizeof(HANDLE) * pWin32File->nShm);
    memcpy(apNew, pWin32File->apShm, sizeof(LPVOID) * pWin32File->nShm);
    for(i=pWin32File->nShm; i<nNew; i++){
      ahNew[i] = NULL;
      apNew[i] = NULL;
    }
    lsmFree(pWin32File->pEnv, pWin32File->ahShm);
    pWin32File->ahShm = ahNew;
    lsmFree(pWin32File->pEnv, pWin32File->apShm);
    pWin32File->apShm = apNew;
    pWin32File->nShm = nNew;
  }

759
760
761
762
763
764
765
766
767
768
769

770
771
772
773
774
775
776
777
778
779
780
781
754
755
756
757
758
759
760




761





762
763
764
765
766
767
768







-
-
-
-
+
-
-
-
-
-








#define MX_CLOSE_ATTEMPT 3
static int lsmWin32OsClose(lsm_file *pFile){
  int rc;
  int nRetry = 0;
  Win32File *pWin32File = (Win32File *)pFile;
  lsmWin32OsShmUnmap(pFile, 0);
  if( pWin32File->pMap!=NULL ){
    UnmapViewOfFile(pWin32File->pMap);
    pWin32File->pMap = NULL;
    pWin32File->nMap = 0;
  win32Unmap(pWin32File);
  }
  if( pWin32File->hMap!=NULL ){
    CloseHandle(pWin32File->hMap);
    pWin32File->hMap = NULL;
  }
  do{
    if( pWin32File->hFile==NULL ){
      rc = LSM_IOERR_BKPT;
      break;
    }
    rc = CloseHandle(pWin32File->hFile);
    if( rc ){
952
953
954
955
956
957
958
959

960
961
962
963
964
965
966
939
940
941
942
943
944
945

946
947
948
949
950
951
952
953







-
+







}
static int lsmWin32OsMutexNotHeld(lsm_mutex *p){
  Win32Mutex *pMutex = (Win32Mutex *)p;
  return pMutex ? pMutex->owner!=GetCurrentThreadId() : 1;
}
#endif
/*
** End of pthreads mutex implementation.
** End of Win32 mutex implementation.
*************************************************************************/
#else
/*************************************************************************
** Noop mutex implementation
*/
typedef struct NoopMutex NoopMutex;
struct NoopMutex {
Added ext/lsm1/test/lsm1_common.tcl.






































1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
# 2014 Dec 19
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
#

if {![info exists testdir]} {
  set testdir [file join [file dirname [info script]] .. .. .. test]
}
source $testdir/tester.tcl

# Check if the lsm1 extension has been compiled.
if {$::tcl_platform(platform) == "windows"} {
  set lsm1 lsm.dll
} else {
  set lsm1 lsm.so
}

if {[file exists [file join .. $lsm1]]} {
  proc return_if_no_lsm1 {} {}
} else {
  proc return_if_no_lsm1 {} {
    finish_test
    return -code return
  }
  return
}

proc load_lsm1_vtab {db} {
  db enable_load_extension 1
  db eval {SELECT load_extension('../lsm')}
}
Added ext/lsm1/test/lsm1_simple.test.
























































1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
# 2017 July 14
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#*************************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script is testing the lsm1 virtual table module.
#

source [file join [file dirname [info script]] lsm1_common.tcl]
set testprefix lsm1_simple
return_if_no_lsm1
load_lsm1_vtab db

forcedelete testlsm.db

do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE x1 USING lsm1(testlsm.db);
  PRAGMA table_info(x1);
} {
  0 key       {} 0 {} 0 
  1 blobkey   {} 0 {} 0 
  2 value     {} 0 {} 0 
  3 blobvalue {} 0 {} 0
}

do_execsql_test 1.1 {
  INSERT INTO x1(blobkey, blobvalue) VALUES(x'abcd', x'1234');
  SELECT quote(blobkey), quote(blobvalue) FROM x1;
} {X'ABCD' X'1234'}

do_catchsql_test 1.2 {
  UPDATE x1 SET blobvalue = x'7890' WHERE blobkey = x'abcd';
} {1 {cannot UPDATE}}

do_catchsql_test 1.3 {
  DELETE FROM x1 WHERE blobkey = x'abcd'
} {1 {cannot DELETE}}

do_test 1.4 {
  lsort [glob testlsm.db*]
} {testlsm.db testlsm.db-log testlsm.db-shm}

db close
do_test 1.5 {
  lsort [glob testlsm.db*]
} {testlsm.db}

finish_test


Changes to ext/misc/carray.c.
13
14
15
16
17
18
19
20
21








22
23
24
25
26
27


28
29
30
31
32
33
34
13
14
15
16
17
18
19


20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42







-
-
+
+
+
+
+
+
+
+






+
+







** This file demonstrates how to create a table-valued-function that
** returns the values in a C-language array.
** Examples:
**
**      SELECT * FROM carray($ptr,5)
**
** The query above returns 5 integers contained in a C-language array
** at the address $ptr.  $ptr is a pointer to the array of integers that
** has been cast to an integer.
** at the address $ptr.  $ptr is a pointer to the array of integers.
** The pointer value must be assigned to $ptr using the
** sqlite3_bind_pointer() interface with a pointer type of "carray".
** For example:
**
**    static int aX[] = { 53, 9, 17, 2231, 4, 99 };
**    int i = sqlite3_bind_parameter_index(pStmt, "$ptr");
**    sqlite3_bind_value(pStmt, i, aX, "carray");
**
** There is an optional third parameter to determine the datatype of
** the C-language array.  Allowed values of the third parameter are
** 'int32', 'int64', 'double', 'char*'.  Example:
**
**      SELECT * FROM carray($ptr,10,'char*');
**
** The default value of the third parameter is 'int32'.
**
** HOW IT WORKS
**
** The carray "function" is really a virtual table with the
** following schema:
**
**     CREATE TABLE carray(
69
70
71
72
73
74
75
76

77
78
79
80
81
82
83
77
78
79
80
81
82
83

84
85
86
87
88
89
90
91







-
+







** serve as the underlying representation of a cursor that scans
** over rows of the result
*/
typedef struct carray_cursor carray_cursor;
struct carray_cursor {
  sqlite3_vtab_cursor base;  /* Base class - must be first */
  sqlite3_int64 iRowid;      /* The rowid */
  sqlite3_int64 iPtr;        /* Pointer to array of values */
  void *pPtr;                /* Pointer to the array of values */
  sqlite3_int64 iCnt;        /* Number of integers in the array */
  unsigned char eType;       /* One of the CARRAY_type values */
};

/*
** The carrayConnect() method is invoked to create a new
** carray_vtab that describes the carray virtual table.
163
164
165
166
167
168
169
170

171
172
173
174
175
176
177
178
179

180
181
182
183
184

185
186
187
188
189

190
191
192
193
194

195
196
197
198
199
200
201
171
172
173
174
175
176
177

178
179
180
181
182
183
184
185
186

187
188
189
190
191

192
193
194
195
196

197
198
199
200
201

202
203
204
205
206
207
208
209







-
+








-
+




-
+




-
+




-
+







  sqlite3_vtab_cursor *cur,   /* The cursor */
  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
  int i                       /* Which column to return */
){
  carray_cursor *pCur = (carray_cursor*)cur;
  sqlite3_int64 x = 0;
  switch( i ){
    case CARRAY_COLUMN_POINTER:   x = pCur->iPtr;   break;
    case CARRAY_COLUMN_POINTER:   return SQLITE_OK;
    case CARRAY_COLUMN_COUNT:     x = pCur->iCnt;   break;
    case CARRAY_COLUMN_CTYPE: {
      sqlite3_result_text(ctx, azType[pCur->eType], -1, SQLITE_STATIC);
      return SQLITE_OK;
    }
    default: {
      switch( pCur->eType ){
        case CARRAY_INT32: {
          int *p = (int*)pCur->iPtr;
          int *p = (int*)pCur->pPtr;
          sqlite3_result_int(ctx, p[pCur->iRowid-1]);
          return SQLITE_OK;
        }
        case CARRAY_INT64: {
          sqlite3_int64 *p = (sqlite3_int64*)pCur->iPtr;
          sqlite3_int64 *p = (sqlite3_int64*)pCur->pPtr;
          sqlite3_result_int64(ctx, p[pCur->iRowid-1]);
          return SQLITE_OK;
        }
        case CARRAY_DOUBLE: {
          double *p = (double*)pCur->iPtr;
          double *p = (double*)pCur->pPtr;
          sqlite3_result_double(ctx, p[pCur->iRowid-1]);
          return SQLITE_OK;
        }
        case CARRAY_TEXT: {
          const char **p = (const char**)pCur->iPtr;
          const char **p = (const char**)pCur->pPtr;
          sqlite3_result_text(ctx, p[pCur->iRowid-1], -1, SQLITE_TRANSIENT);
          return SQLITE_OK;
        }
      }
    }
  }
  sqlite3_result_int64(ctx, x);
228
229
230
231
232
233
234
235
236


237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254

255
256
257
258
259
260
261
236
237
238
239
240
241
242


243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261

262
263
264
265
266
267
268
269







-
-
+
+

















-
+







static int carrayFilter(
  sqlite3_vtab_cursor *pVtabCursor, 
  int idxNum, const char *idxStr,
  int argc, sqlite3_value **argv
){
  carray_cursor *pCur = (carray_cursor *)pVtabCursor;
  if( idxNum ){
    pCur->iPtr = sqlite3_value_int64(argv[0]);
    pCur->iCnt = sqlite3_value_int64(argv[1]);
    pCur->pPtr = sqlite3_value_pointer(argv[0], "carray");
    pCur->iCnt = pCur->pPtr ? sqlite3_value_int64(argv[1]) : 0;
    if( idxNum<3 ){
      pCur->eType = CARRAY_INT32;
    }else{
      unsigned char i;
      const char *zType = (const char*)sqlite3_value_text(argv[2]);
      for(i=0; i<sizeof(azType)/sizeof(azType[0]); i++){
        if( sqlite3_stricmp(zType, azType[i])==0 ) break;
      }
      if( i>=sizeof(azType)/sizeof(azType[0]) ){
        pVtabCursor->pVtab->zErrMsg = sqlite3_mprintf(
          "unknown datatype: %Q", zType);
        return SQLITE_ERROR;
      }else{
        pCur->eType = i;
      }
    }
  }else{
    pCur->iPtr = 0;
    pCur->pPtr = 0;
    pCur->iCnt = 0;
  }
  pCur->iRowid = 1;
  return SQLITE_OK;
}

/*
341
342
343
344
345
346
347




























348
349
350
351
352
353
354
355
356
357
358
359
360
361





362


363
364
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402

403
404
405
406







+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+














+
+
+
+
+
-
+
+


  0,                         /* xSync */
  0,                         /* xCommit */
  0,                         /* xRollback */
  0,                         /* xFindMethod */
  0,                         /* xRename */
};

/*
** For testing purpose in the TCL test harness, we need a method for
** setting the pointer value.  The inttoptr(X) SQL function accomplishes
** this.  Tcl script will bind an integer to X and the inttoptr() SQL
** function will use sqlite3_result_pointer() to convert that integer into
** a pointer.
**
** This is for testing on TCL only.
*/
#ifdef SQLITE_TEST
static void inttoptrFunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  void *p;
  sqlite3_int64 i64;
  i64 = sqlite3_value_int64(argv[0]);
  if( sizeof(i64)==sizeof(p) ){
    memcpy(&p, &i64, sizeof(p));
  }else{
    int i32 = i64 & 0xffffffff;
    memcpy(&p, &i32, sizeof(p));
  }
  sqlite3_result_pointer(context, p, "carray");
}
#endif /* SQLITE_TEST */

#endif /* SQLITE_OMIT_VIRTUALTABLE */

#ifdef _WIN32
__declspec(dllexport)
#endif
int sqlite3_carray_init(
  sqlite3 *db, 
  char **pzErrMsg, 
  const sqlite3_api_routines *pApi
){
  int rc = SQLITE_OK;
  SQLITE_EXTENSION_INIT2(pApi);
#ifndef SQLITE_OMIT_VIRTUALTABLE
  rc = sqlite3_create_module(db, "carray", &carrayModule, 0);
#ifdef SQLITE_TEST
  if( rc==SQLITE_OK ){
    rc = sqlite3_create_function(db, "inttoptr", 1, SQLITE_UTF8, 0,
                                 inttoptrFunc, 0, 0);
  }
#endif
#endif /* SQLITE_TEST */
#endif /* SQLITE_OMIT_VIRTUALTABLE */
  return rc;
}
Added ext/misc/completion.c.











































































































































































































































































































































































































































































































































1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
/*
** 2017-07-10
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
**
** This file implements an eponymous virtual table that returns suggested
** completions for a partial SQL input.
**
** Suggested usage:
**
**     SELECT DISTINCT candidate COLLATE nocase
**       FROM completion($prefix,$wholeline)
**      ORDER BY 1;
**
** The two query parameters are optional.  $prefix is the text of the
** current word being typed and that is to be completed.  $wholeline is
** the complete input line, used for context.
**
** The raw completion() table might return the same candidate multiple
** times, for example if the same column name is used to two or more
** tables.  And the candidates are returned in an arbitrary order.  Hence,
** the DISTINCT and ORDER BY are recommended.
**
** This virtual table operates at the speed of human typing, and so there
** is no attempt to make it fast.  Even a slow implementation will be much
** faster than any human can type.
**
*/
#include "sqlite3ext.h"
SQLITE_EXTENSION_INIT1
#include <assert.h>
#include <string.h>
#include <ctype.h>

#ifndef SQLITE_OMIT_VIRTUALTABLE

/* completion_vtab is a subclass of sqlite3_vtab which will
** serve as the underlying representation of a completion virtual table
*/
typedef struct completion_vtab completion_vtab;
struct completion_vtab {
  sqlite3_vtab base;  /* Base class - must be first */
  sqlite3 *db;        /* Database connection for this completion vtab */
};

/* completion_cursor is a subclass of sqlite3_vtab_cursor which will
** serve as the underlying representation of a cursor that scans
** over rows of the result
*/
typedef struct completion_cursor completion_cursor;
struct completion_cursor {
  sqlite3_vtab_cursor base;  /* Base class - must be first */
  sqlite3 *db;               /* Database connection for this cursor */
  int nPrefix, nLine;        /* Number of bytes in zPrefix and zLine */
  char *zPrefix;             /* The prefix for the word we want to complete */
  char *zLine;               /* The whole that we want to complete */
  const char *zCurrentRow;   /* Current output row */
  sqlite3_stmt *pStmt;       /* Current statement */
  sqlite3_int64 iRowid;      /* The rowid */
  int ePhase;                /* Current phase */
  int j;                     /* inter-phase counter */
};

/* Values for ePhase:
*/
#define COMPLETION_FIRST_PHASE   1
#define COMPLETION_KEYWORDS      1
#define COMPLETION_PRAGMAS       2
#define COMPLETION_FUNCTIONS     3
#define COMPLETION_COLLATIONS    4
#define COMPLETION_INDEXES       5
#define COMPLETION_TRIGGERS      6
#define COMPLETION_DATABASES     7
#define COMPLETION_TABLES        8
#define COMPLETION_COLUMNS       9
#define COMPLETION_MODULES       10
#define COMPLETION_EOF           11

/*
** The completionConnect() method is invoked to create a new
** completion_vtab that describes the completion virtual table.
**
** Think of this routine as the constructor for completion_vtab objects.
**
** All this routine needs to do is:
**
**    (1) Allocate the completion_vtab object and initialize all fields.
**
**    (2) Tell SQLite (via the sqlite3_declare_vtab() interface) what the
**        result set of queries against completion will look like.
*/
static int completionConnect(
  sqlite3 *db,
  void *pAux,
  int argc, const char *const*argv,
  sqlite3_vtab **ppVtab,
  char **pzErr
){
  completion_vtab *pNew;
  int rc;

  (void)(pAux);    /* Unused parameter */
  (void)(argc);    /* Unused parameter */
  (void)(argv);    /* Unused parameter */
  (void)(pzErr);   /* Unused parameter */

/* Column numbers */
#define COMPLETION_COLUMN_CANDIDATE 0  /* Suggested completion of the input */
#define COMPLETION_COLUMN_PREFIX    1  /* Prefix of the word to be completed */
#define COMPLETION_COLUMN_WHOLELINE 2  /* Entire line seen so far */
#define COMPLETION_COLUMN_PHASE     3  /* ePhase - used for debugging only */

  rc = sqlite3_declare_vtab(db,
      "CREATE TABLE x("
      "  candidate TEXT,"
      "  prefix TEXT HIDDEN,"
      "  wholeline TEXT HIDDEN,"
      "  phase INT HIDDEN"        /* Used for debugging only */
      ")");
  if( rc==SQLITE_OK ){
    pNew = sqlite3_malloc( sizeof(*pNew) );
    *ppVtab = (sqlite3_vtab*)pNew;
    if( pNew==0 ) return SQLITE_NOMEM;
    memset(pNew, 0, sizeof(*pNew));
    pNew->db = db;
  }
  return rc;
}

/*
** This method is the destructor for completion_cursor objects.
*/
static int completionDisconnect(sqlite3_vtab *pVtab){
  sqlite3_free(pVtab);
  return SQLITE_OK;
}

/*
** Constructor for a new completion_cursor object.
*/
static int completionOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
  completion_cursor *pCur;
  pCur = sqlite3_malloc( sizeof(*pCur) );
  if( pCur==0 ) return SQLITE_NOMEM;
  memset(pCur, 0, sizeof(*pCur));
  pCur->db = ((completion_vtab*)p)->db;
  *ppCursor = &pCur->base;
  return SQLITE_OK;
}

/*
** Reset the completion_cursor.
*/
static void completionCursorReset(completion_cursor *pCur){
  sqlite3_free(pCur->zPrefix);   pCur->zPrefix = 0;  pCur->nPrefix = 0;
  sqlite3_free(pCur->zLine);     pCur->zLine = 0;    pCur->nLine = 0;
  sqlite3_finalize(pCur->pStmt); pCur->pStmt = 0;
  pCur->j = 0;
}

/*
** Destructor for a completion_cursor.
*/
static int completionClose(sqlite3_vtab_cursor *cur){
  completionCursorReset((completion_cursor*)cur);
  sqlite3_free(cur);
  return SQLITE_OK;
}

/*
** All SQL keywords understood by SQLite
*/
static const char *completionKwrds[] = {
  "ABORT", "ACTION", "ADD", "AFTER", "ALL", "ALTER", "ANALYZE", "AND", "AS",
  "ASC", "ATTACH", "AUTOINCREMENT", "BEFORE", "BEGIN", "BETWEEN", "BY",
  "CASCADE", "CASE", "CAST", "CHECK", "COLLATE", "COLUMN", "COMMIT",
  "CONFLICT", "CONSTRAINT", "CREATE", "CROSS", "CURRENT_DATE",
  "CURRENT_TIME", "CURRENT_TIMESTAMP", "DATABASE", "DEFAULT", "DEFERRABLE",
  "DEFERRED", "DELETE", "DESC", "DETACH", "DISTINCT", "DROP", "EACH",
  "ELSE", "END", "ESCAPE", "EXCEPT", "EXCLUSIVE", "EXISTS", "EXPLAIN",
  "FAIL", "FOR", "FOREIGN", "FROM", "FULL", "GLOB", "GROUP", "HAVING", "IF",
  "IGNORE", "IMMEDIATE", "IN", "INDEX", "INDEXED", "INITIALLY", "INNER",
  "INSERT", "INSTEAD", "INTERSECT", "INTO", "IS", "ISNULL", "JOIN", "KEY",
  "LEFT", "LIKE", "LIMIT", "MATCH", "NATURAL", "NO", "NOT", "NOTNULL",
  "NULL", "OF", "OFFSET", "ON", "OR", "ORDER", "OUTER", "PLAN", "PRAGMA",
  "PRIMARY", "QUERY", "RAISE", "RECURSIVE", "REFERENCES", "REGEXP",
  "REINDEX", "RELEASE", "RENAME", "REPLACE", "RESTRICT", "RIGHT",
  "ROLLBACK", "ROW", "SAVEPOINT", "SELECT", "SET", "TABLE", "TEMP",
  "TEMPORARY", "THEN", "TO", "TRANSACTION", "TRIGGER", "UNION", "UNIQUE",
  "UPDATE", "USING", "VACUUM", "VALUES", "VIEW", "VIRTUAL", "WHEN", "WHERE",
  "WITH", "WITHOUT",
};
#define completionKwCount \
   (int)(sizeof(completionKwrds)/sizeof(completionKwrds[0]))

/*
** Advance a completion_cursor to its next row of output.
**
** The ->ePhase, ->j, and ->pStmt fields of the completion_cursor object
** record the current state of the scan.  This routine sets ->zCurrentRow
** to the current row of output and then returns.  If no more rows remain,
** then ->ePhase is set to COMPLETION_EOF which will signal the virtual
** table that has reached the end of its scan.
**
** The current implementation just lists potential identifiers and
** keywords and filters them by zPrefix.  Future enhancements should
** take zLine into account to try to restrict the set of identifiers and
** keywords based on what would be legal at the current point of input.
*/
static int completionNext(sqlite3_vtab_cursor *cur){
  completion_cursor *pCur = (completion_cursor*)cur;
  int eNextPhase = 0;  /* Next phase to try if current phase reaches end */
  int iCol = -1;       /* If >=0, step pCur->pStmt and use the i-th column */
  pCur->iRowid++;
  while( pCur->ePhase!=COMPLETION_EOF ){
    switch( pCur->ePhase ){
      case COMPLETION_KEYWORDS: {
        if( pCur->j >= completionKwCount ){
          pCur->zCurrentRow = 0;
          pCur->ePhase = COMPLETION_DATABASES;
        }else{
          pCur->zCurrentRow = completionKwrds[pCur->j++];
        }
        iCol = -1;
        break;
      }
      case COMPLETION_DATABASES: {
        if( pCur->pStmt==0 ){
          sqlite3_prepare_v2(pCur->db, "PRAGMA database_list", -1,
                             &pCur->pStmt, 0);
        }
        iCol = 1;
        eNextPhase = COMPLETION_TABLES;
        break;
      }
      case COMPLETION_TABLES: {
        if( pCur->pStmt==0 ){
          sqlite3_stmt *pS2;
          char *zSql = 0;
          const char *zSep = "";
          sqlite3_prepare_v2(pCur->db, "PRAGMA database_list", -1, &pS2, 0);
          while( sqlite3_step(pS2)==SQLITE_ROW ){
            const char *zDb = (const char*)sqlite3_column_text(pS2, 1);
            zSql = sqlite3_mprintf(
               "%z%s"
               "SELECT name FROM \"%w\".sqlite_master"
               " WHERE type='table'",
               zSql, zSep, zDb
            );
            if( zSql==0 ) return SQLITE_NOMEM;
            zSep = " UNION ";
          }
          sqlite3_finalize(pS2);
          sqlite3_prepare_v2(pCur->db, zSql, -1, &pCur->pStmt, 0);
          sqlite3_free(zSql);
        }
        iCol = 0;
        eNextPhase = COMPLETION_COLUMNS;
        break;
      }
      case COMPLETION_COLUMNS: {
        if( pCur->pStmt==0 ){
          sqlite3_stmt *pS2;
          char *zSql = 0;
          const char *zSep = "";
          sqlite3_prepare_v2(pCur->db, "PRAGMA database_list", -1, &pS2, 0);
          while( sqlite3_step(pS2)==SQLITE_ROW ){
            const char *zDb = (const char*)sqlite3_column_text(pS2, 1);
            zSql = sqlite3_mprintf(
               "%z%s"
               "SELECT pti.name FROM \"%w\".sqlite_master AS sm"
                       " JOIN pragma_table_info(sm.name,%Q) AS pti"
               " WHERE sm.type='table'",
               zSql, zSep, zDb, zDb
            );
            if( zSql==0 ) return SQLITE_NOMEM;
            zSep = " UNION ";
          }
          sqlite3_finalize(pS2);
          sqlite3_prepare_v2(pCur->db, zSql, -1, &pCur->pStmt, 0);
          sqlite3_free(zSql);
        }
        iCol = 0;
        eNextPhase = COMPLETION_EOF;
        break;
      }
    }
    if( iCol<0 ){
      /* This case is when the phase presets zCurrentRow */
      if( pCur->zCurrentRow==0 ) continue;
    }else{
      if( sqlite3_step(pCur->pStmt)==SQLITE_ROW ){
        /* Extract the next row of content */
        pCur->zCurrentRow = (const char*)sqlite3_column_text(pCur->pStmt, iCol);
      }else{
        /* When all rows are finished, advance to the next phase */
        sqlite3_finalize(pCur->pStmt);
        pCur->pStmt = 0;
        pCur->ePhase = eNextPhase;
        continue;
      }
    }
    if( pCur->nPrefix==0 ) break;
    if( sqlite3_strnicmp(pCur->zPrefix, pCur->zCurrentRow, pCur->nPrefix)==0 ){
      break;
    }
  }

  return SQLITE_OK;
}

/*
** Return values of columns for the row at which the completion_cursor
** is currently pointing.
*/
static int completionColumn(
  sqlite3_vtab_cursor *cur,   /* The cursor */
  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
  int i                       /* Which column to return */
){
  completion_cursor *pCur = (completion_cursor*)cur;
  switch( i ){
    case COMPLETION_COLUMN_CANDIDATE: {
      sqlite3_result_text(ctx, pCur->zCurrentRow, -1, SQLITE_TRANSIENT);
      break;
    }
    case COMPLETION_COLUMN_PREFIX: {
      sqlite3_result_text(ctx, pCur->zPrefix, -1, SQLITE_TRANSIENT);
      break;
    }
    case COMPLETION_COLUMN_WHOLELINE: {
      sqlite3_result_text(ctx, pCur->zLine, -1, SQLITE_TRANSIENT);
      break;
    }
    case COMPLETION_COLUMN_PHASE: {
      sqlite3_result_int(ctx, pCur->ePhase);
      break;
    }
  }
  return SQLITE_OK;
}

/*
** Return the rowid for the current row.  In this implementation, the
** rowid is the same as the output value.
*/
static int completionRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
  completion_cursor *pCur = (completion_cursor*)cur;
  *pRowid = pCur->iRowid;
  return SQLITE_OK;
}

/*
** Return TRUE if the cursor has been moved off of the last
** row of output.
*/
static int completionEof(sqlite3_vtab_cursor *cur){
  completion_cursor *pCur = (completion_cursor*)cur;
  return pCur->ePhase >= COMPLETION_EOF;
}

/*
** This method is called to "rewind" the completion_cursor object back
** to the first row of output.  This method is always called at least
** once prior to any call to completionColumn() or completionRowid() or 
** completionEof().
*/
static int completionFilter(
  sqlite3_vtab_cursor *pVtabCursor, 
  int idxNum, const char *idxStr,
  int argc, sqlite3_value **argv
){
  completion_cursor *pCur = (completion_cursor *)pVtabCursor;
  int iArg = 0;
  (void)(idxStr);   /* Unused parameter */
  (void)(argc);     /* Unused parameter */
  completionCursorReset(pCur);
  if( idxNum & 1 ){
    pCur->nPrefix = sqlite3_value_bytes(argv[iArg]);
    if( pCur->nPrefix>0 ){
      pCur->zPrefix = sqlite3_mprintf("%s", sqlite3_value_text(argv[iArg]));
      if( pCur->zPrefix==0 ) return SQLITE_NOMEM;
    }
    iArg++;
  }
  if( idxNum & 2 ){
    pCur->nLine = sqlite3_value_bytes(argv[iArg]);
    if( pCur->nLine>0 ){
      pCur->zLine = sqlite3_mprintf("%s", sqlite3_value_text(argv[iArg]));
      if( pCur->zLine==0 ) return SQLITE_NOMEM;
    }
    iArg++;
  }
  if( pCur->zLine!=0 && pCur->zPrefix==0 ){
    int i = pCur->nLine;
    while( i>0 && (isalnum(pCur->zLine[i-1]) || pCur->zLine[i-1]=='_') ){
      i--;
    }
    pCur->nPrefix = pCur->nLine - i;
    if( pCur->nPrefix>0 ){
      pCur->zPrefix = sqlite3_mprintf("%.*s", pCur->nPrefix, pCur->zLine + i);
      if( pCur->zPrefix==0 ) return SQLITE_NOMEM;
    }
  }
  pCur->iRowid = 0;
  pCur->ePhase = COMPLETION_FIRST_PHASE;
  return completionNext(pVtabCursor);
}

/*
** SQLite will invoke this method one or more times while planning a query
** that uses the completion virtual table.  This routine needs to create
** a query plan for each invocation and compute an estimated cost for that
** plan.
**
** There are two hidden parameters that act as arguments to the table-valued
** function:  "prefix" and "wholeline".  Bit 0 of idxNum is set if "prefix"
** is available and bit 1 is set if "wholeline" is available.
*/
static int completionBestIndex(
  sqlite3_vtab *tab,
  sqlite3_index_info *pIdxInfo
){
  int i;                 /* Loop over constraints */
  int idxNum = 0;        /* The query plan bitmask */
  int prefixIdx = -1;    /* Index of the start= constraint, or -1 if none */
  int wholelineIdx = -1; /* Index of the stop= constraint, or -1 if none */
  int nArg = 0;          /* Number of arguments that completeFilter() expects */
  const struct sqlite3_index_constraint *pConstraint;

  (void)(tab);    /* Unused parameter */
  pConstraint = pIdxInfo->aConstraint;
  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
    if( pConstraint->usable==0 ) continue;
    if( pConstraint->op!=SQLITE_INDEX_CONSTRAINT_EQ ) continue;
    switch( pConstraint->iColumn ){
      case COMPLETION_COLUMN_PREFIX:
        prefixIdx = i;
        idxNum |= 1;
        break;
      case COMPLETION_COLUMN_WHOLELINE:
        wholelineIdx = i;
        idxNum |= 2;
        break;
    }
  }
  if( prefixIdx>=0 ){
    pIdxInfo->aConstraintUsage[prefixIdx].argvIndex = ++nArg;
    pIdxInfo->aConstraintUsage[prefixIdx].omit = 1;
  }
  if( wholelineIdx>=0 ){
    pIdxInfo->aConstraintUsage[wholelineIdx].argvIndex = ++nArg;
    pIdxInfo->aConstraintUsage[wholelineIdx].omit = 1;
  }
  pIdxInfo->idxNum = idxNum;
  pIdxInfo->estimatedCost = (double)5000 - 1000*nArg;
  pIdxInfo->estimatedRows = 500 - 100*nArg;
  return SQLITE_OK;
}

/*
** This following structure defines all the methods for the 
** completion virtual table.
*/
static sqlite3_module completionModule = {
  0,                         /* iVersion */
  0,                         /* xCreate */
  completionConnect,         /* xConnect */
  completionBestIndex,       /* xBestIndex */
  completionDisconnect,      /* xDisconnect */
  0,                         /* xDestroy */
  completionOpen,            /* xOpen - open a cursor */
  completionClose,           /* xClose - close a cursor */
  completionFilter,          /* xFilter - configure scan constraints */
  completionNext,            /* xNext - advance a cursor */
  completionEof,             /* xEof - check for end of scan */
  completionColumn,          /* xColumn - read data */
  completionRowid,           /* xRowid - read data */
  0,                         /* xUpdate */
  0,                         /* xBegin */
  0,                         /* xSync */
  0,                         /* xCommit */
  0,                         /* xRollback */
  0,                         /* xFindMethod */
  0,                         /* xRename */
  0,                         /* xSavepoint */
  0,                         /* xRelease */
  0                          /* xRollbackTo */
};

#endif /* SQLITE_OMIT_VIRTUALTABLE */

int sqlite3CompletionVtabInit(sqlite3 *db){
  int rc = SQLITE_OK;
#ifndef SQLITE_OMIT_VIRTUALTABLE
  rc = sqlite3_create_module(db, "completion", &completionModule, 0);
#endif
  return rc;
}

#ifdef _WIN32
__declspec(dllexport)
#endif
int sqlite3_completion_init(
  sqlite3 *db, 
  char **pzErrMsg, 
  const sqlite3_api_routines *pApi
){
  int rc = SQLITE_OK;
  SQLITE_EXTENSION_INIT2(pApi);
  (void)(pzErrMsg);  /* Unused parameter */
#ifndef SQLITE_OMIT_VIRTUALTABLE
  rc = sqlite3CompletionVtabInit(db);
#endif
  return rc;
}
Changes to ext/misc/fileio.c.
28
29
30
31
32
33
34

35
36
37
38
39
40
41
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42







+







  sqlite3_value **argv
){
  const char *zName;
  FILE *in;
  long nIn;
  void *pBuf;

  (void)(argc);  /* Unused parameter */
  zName = (const char*)sqlite3_value_text(argv[0]);
  if( zName==0 ) return;
  in = fopen(zName, "rb");
  if( in==0 ) return;
  fseek(in, 0, SEEK_END);
  nIn = ftell(in);
  rewind(in);
60
61
62
63
64
65
66

67
68
69
70
71
72
73
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75







+







  sqlite3_value **argv
){
  FILE *out;
  const char *z;
  sqlite3_int64 rc;
  const char *zFile;

  (void)(argc);  /* Unused parameter */
  zFile = (const char*)sqlite3_value_text(argv[0]);
  if( zFile==0 ) return;
  out = fopen(zFile, "wb");
  if( out==0 ) return;
  z = (const char*)sqlite3_value_blob(argv[1]);
  if( z==0 ){
    rc = 0;
Changes to ext/misc/remember.c.
17
18
19
20
21
22
23
24


25
26



27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47

48
49
50
51


52
53
54
55
56
57
58
17
18
19
20
21
22
23

24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

51
52
53


54
55
56
57
58
59
60
61
62







-
+
+


+
+
+




















-
+


-
-
+
+







**
** This allows, for example, a counter to incremented and the original
** value retrieved, atomically, using a single statement:
**
**    UPDATE counterTab SET cnt=remember(cnt,$PTR)+1 WHERE id=$ID
**
** Prepare the above statement once.  Then to use it, bind the address
** of the output variable to $PTR and the id of the counter to $ID and
** of the output variable to $PTR using sqlite3_bind_pointer() with a
** pointer type of "carray" and bind the id of the counter to $ID and
** run the prepared statement.
**
** This implementation of the remember() function uses a "carray"
** pointer so that it can share pointers with the carray() extension.
**
** One can imagine doing similar things with floating-point values and
** strings, but this demonstration extension will stick to using just
** integers.
*/
#include "sqlite3ext.h"
SQLITE_EXTENSION_INIT1
#include <assert.h>

/*
**      remember(V,PTR)
**
** Return the integer value V.  Also save the value of V in a
** C-language variable whose address is PTR.
*/
static void rememberFunc(
  sqlite3_context *pCtx,
  int argc,
  sqlite3_value **argv
){
  sqlite3_int64 v;
  sqlite3_int64 ptr;
  sqlite3_int64 *ptr;
  assert( argc==2 );
  v = sqlite3_value_int64(argv[0]);
  ptr = sqlite3_value_int64(argv[1]);
  *((sqlite3_int64*)ptr) = v;
  ptr = sqlite3_value_pointer(argv[1], "carray");
  if( ptr ) *ptr = v;
  sqlite3_result_int64(pCtx, v);
}

#ifdef _WIN32
__declspec(dllexport)
#endif
int sqlite3_remember_init(
Changes to ext/misc/stmt.c.
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
25
26
27
28
29
30
31

















32
33
34
35
36
37
38







-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-







#include "sqlite3ext.h"
#endif
SQLITE_EXTENSION_INIT1
#include <assert.h>
#include <string.h>

#ifndef SQLITE_OMIT_VIRTUALTABLE

/*
** The following macros are used to cast pointers to integers.
** The way you do this varies from one compiler
** to the next, so we have developed the following set of #if statements
** to generate appropriate macros for a wide range of compilers.
*/
#if defined(__PTRDIFF_TYPE__)  /* This case should work for GCC */
# define SQLITE_PTR_TO_INT64(X)  ((sqlite3_int64)(__PTRDIFF_TYPE__)(X))
#elif !defined(__GNUC__)       /* Works for compilers other than LLVM */
# define SQLITE_PTR_TO_INT64(X)  ((sqlite3_int64)(((char*)X)-(char*)0))
#elif defined(HAVE_STDINT_H)   /* Use this case if we have ANSI headers */
# define SQLITE_PTR_TO_INT64(X)  ((sqlite3_int64)(intptr_t)(X))
#else                          /* Generates a warning - but it always works */
# define SQLITE_PTR_TO_INT64(X)  ((sqlite3_int64)(X))
#endif


/* stmt_vtab is a subclass of sqlite3_vtab which will
** serve as the underlying representation of a stmt virtual table
*/
typedef struct stmt_vtab stmt_vtab;
struct stmt_vtab {
  sqlite3_vtab base;  /* Base class - must be first */
66
67
68
69
70
71
72
73

74
75
76
77
78
79
80
81
82

83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106











107
108
109
110

111
112
113
114
115
116
117
49
50
51
52
53
54
55

56
57
58
59
60
61
62
63
64

65
66
67
68
69
70
71
72
73
74
75
76
77












78
79
80
81
82
83
84
85
86
87
88
89
90
91

92
93
94
95
96
97
98
99







-
+








-
+












-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+



-
+







  sqlite3 *db;               /* Database connection for this cursor */
  sqlite3_stmt *pStmt;       /* Statement cursor is currently pointing at */
  sqlite3_int64 iRowid;      /* The rowid */
};

/*
** The stmtConnect() method is invoked to create a new
** stmt_vtab that describes the generate_stmt virtual table.
** stmt_vtab that describes the stmt virtual table.
**
** Think of this routine as the constructor for stmt_vtab objects.
**
** All this routine needs to do is:
**
**    (1) Allocate the stmt_vtab object and initialize all fields.
**
**    (2) Tell SQLite (via the sqlite3_declare_vtab() interface) what the
**        result set of queries against generate_stmt will look like.
**        result set of queries against stmt will look like.
*/
static int stmtConnect(
  sqlite3 *db,
  void *pAux,
  int argc, const char *const*argv,
  sqlite3_vtab **ppVtab,
  char **pzErr
){
  stmt_vtab *pNew;
  int rc;

/* Column numbers */
#define STMT_COLUMN_PTR     0   /* Numeric value of the statement pointer */
#define STMT_COLUMN_SQL     1   /* SQL for the statement */
#define STMT_COLUMN_NCOL    2   /* Number of result columns */
#define STMT_COLUMN_RO      3   /* True if read-only */
#define STMT_COLUMN_BUSY    4   /* True if currently busy */
#define STMT_COLUMN_NSCAN   5   /* SQLITE_STMTSTATUS_FULLSCAN_STEP */
#define STMT_COLUMN_NSORT   6   /* SQLITE_STMTSTATUS_SORT */
#define STMT_COLUMN_NAIDX   7   /* SQLITE_STMTSTATUS_AUTOINDEX */
#define STMT_COLUMN_NSTEP   8   /* SQLITE_STMTSTATUS_VM_STEP */
#define STMT_COLUMN_REPREP  9   /* SQLITE_STMTSTATUS_REPREPARE */
#define STMT_COLUMN_RUN    10   /* SQLITE_STMTSTATUS_RUN */
#define STMT_COLUMN_MEM    11   /* SQLITE_STMTSTATUS_MEMUSED */
#define STMT_COLUMN_SQL     0   /* SQL for the statement */
#define STMT_COLUMN_NCOL    1   /* Number of result columns */
#define STMT_COLUMN_RO      2   /* True if read-only */
#define STMT_COLUMN_BUSY    3   /* True if currently busy */
#define STMT_COLUMN_NSCAN   4   /* SQLITE_STMTSTATUS_FULLSCAN_STEP */
#define STMT_COLUMN_NSORT   5   /* SQLITE_STMTSTATUS_SORT */
#define STMT_COLUMN_NAIDX   6   /* SQLITE_STMTSTATUS_AUTOINDEX */
#define STMT_COLUMN_NSTEP   7   /* SQLITE_STMTSTATUS_VM_STEP */
#define STMT_COLUMN_REPREP  8   /* SQLITE_STMTSTATUS_REPREPARE */
#define STMT_COLUMN_RUN     9   /* SQLITE_STMTSTATUS_RUN */
#define STMT_COLUMN_MEM    10   /* SQLITE_STMTSTATUS_MEMUSED */


  rc = sqlite3_declare_vtab(db,
     "CREATE TABLE x(ptr,sql,ncol,ro,busy,nscan,nsort,naidx,nstep,"
     "CREATE TABLE x(sql,ncol,ro,busy,nscan,nsort,naidx,nstep,"
                    "reprep,run,mem)");
  if( rc==SQLITE_OK ){
    pNew = sqlite3_malloc( sizeof(*pNew) );
    *ppVtab = (sqlite3_vtab*)pNew;
    if( pNew==0 ) return SQLITE_NOMEM;
    memset(pNew, 0, sizeof(*pNew));
    pNew->db = db;
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
148
149
150
151
152
153
154




155
156
157
158
159
160
161







-
-
-
-







static int stmtColumn(
  sqlite3_vtab_cursor *cur,   /* The cursor */
  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
  int i                       /* Which column to return */
){
  stmt_cursor *pCur = (stmt_cursor*)cur;
  switch( i ){
    case STMT_COLUMN_PTR: {
      sqlite3_result_int64(ctx, SQLITE_PTR_TO_INT64(pCur->pStmt));
      break;
    }
    case STMT_COLUMN_SQL: {
      sqlite3_result_text(ctx, sqlite3_sql(pCur->pStmt), -1, SQLITE_TRANSIENT);
      break;
    }
    case STMT_COLUMN_NCOL: {
      sqlite3_result_int(ctx, sqlite3_column_count(pCur->pStmt));
      break;
243
244
245
246
247
248
249
250

251
252
253
254
255
256
257
258
259
260
261
262
263
264
265

266
267
268
269
270
271
272
221
222
223
224
225
226
227

228
229
230
231
232
233
234
235
236
237
238
239
240
241
242

243
244
245
246
247
248
249
250







-
+














-
+







  pCur->pStmt = 0;
  pCur->iRowid = 0;
  return stmtNext(pVtabCursor);
}

/*
** SQLite will invoke this method one or more times while planning a query
** that uses the generate_stmt virtual table.  This routine needs to create
** that uses the stmt virtual table.  This routine needs to create
** a query plan for each invocation and compute an estimated cost for that
** plan.
*/
static int stmtBestIndex(
  sqlite3_vtab *tab,
  sqlite3_index_info *pIdxInfo
){
  pIdxInfo->estimatedCost = (double)500;
  pIdxInfo->estimatedRows = 500;
  return SQLITE_OK;
}

/*
** This following structure defines all the methods for the 
** generate_stmt virtual table.
** stmt virtual table.
*/
static sqlite3_module stmtModule = {
  0,                         /* iVersion */
  0,                         /* xCreate */
  stmtConnect,               /* xConnect */
  stmtBestIndex,             /* xBestIndex */
  stmtDisconnect,            /* xDisconnect */
281
282
283
284
285
286
287



288
289
290
291
292
293
294
295

296
297
298
299
300
301
302
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275

276
277
278
279
280
281
282
283







+
+
+







-
+







  0,                         /* xUpdate */
  0,                         /* xBegin */
  0,                         /* xSync */
  0,                         /* xCommit */
  0,                         /* xRollback */
  0,                         /* xFindMethod */
  0,                         /* xRename */
  0,                         /* xSavepoint */
  0,                         /* xRelease */
  0,                         /* xRollbackTo */
};

#endif /* SQLITE_OMIT_VIRTUALTABLE */

int sqlite3StmtVtabInit(sqlite3 *db){
  int rc = SQLITE_OK;
#ifndef SQLITE_OMIT_VIRTUALTABLE
  rc = sqlite3_create_module(db, "stmt", &stmtModule, 0);
  rc = sqlite3_create_module(db, "sqlite_stmt", &stmtModule, 0);
#endif
  return rc;
}

#ifndef SQLITE_CORE
#ifdef _WIN32
__declspec(dllexport)
Added ext/misc/unionvtab.c.















































































































































































































































































































































































































































































































































































































































































































































































































































1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
/*
** 2017 July 15
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
**
** This file contains the implementation of the "unionvtab" virtual
** table. This module provides read-only access to multiple tables, 
** possibly in multiple database files, via a single database object.
** The source tables must have the following characteristics:
**
**   * They must all be rowid tables (not VIRTUAL or WITHOUT ROWID
**     tables or views).
**
**   * Each table must have the same set of columns, declared in
**     the same order and with the same declared types.
**
**   * The tables must not feature a user-defined column named "_rowid_".
**
**   * Each table must contain a distinct range of rowid values.
**
** A "unionvtab" virtual table is created as follows:
**
**   CREATE VIRTUAL TABLE <name> USING unionvtab(<sql statement>);
**
** The implementation evalutes <sql statement> whenever a unionvtab virtual
** table is created or opened. It should return one row for each source
** database table. The four columns required of each row are:
**
**   1. The name of the database containing the table ("main" or "temp" or
**      the name of an attached database). Or NULL to indicate that all
**      databases should be searched for the table in the usual fashion.
**
**   2. The name of the database table.
**
**   3. The smallest rowid in the range of rowids that may be stored in the
**      database table (an integer).
**
**   4. The largest rowid in the range of rowids that may be stored in the
**      database table (an integer).
**
*/

#include "sqlite3ext.h"
SQLITE_EXTENSION_INIT1
#include <assert.h>
#include <string.h>

#ifndef SQLITE_OMIT_VIRTUALTABLE

/*
** Largest and smallest possible 64-bit signed integers. These macros
** copied from sqliteInt.h.
*/
#ifndef LARGEST_INT64
# define LARGEST_INT64  (0xffffffff|(((sqlite3_int64)0x7fffffff)<<32))
#endif
#ifndef SMALLEST_INT64
# define SMALLEST_INT64 (((sqlite3_int64)-1) - LARGEST_INT64)
#endif

typedef struct UnionCsr UnionCsr;
typedef struct UnionTab UnionTab;
typedef struct UnionSrc UnionSrc;

/*
** Each source table (row returned by the initialization query) is 
** represented by an instance of the following structure stored in the
** UnionTab.aSrc[] array.
*/
struct UnionSrc {
  char *zDb;                      /* Database containing source table */
  char *zTab;                     /* Source table name */
  sqlite3_int64 iMin;             /* Minimum rowid */
  sqlite3_int64 iMax;             /* Maximum rowid */
};

/*
** Virtual table  type for union vtab.
*/
struct UnionTab {
  sqlite3_vtab base;              /* Base class - must be first */
  sqlite3 *db;                    /* Database handle */
  int iPK;                        /* INTEGER PRIMARY KEY column, or -1 */
  int nSrc;                       /* Number of elements in the aSrc[] array */
  UnionSrc *aSrc;                 /* Array of source tables, sorted by rowid */
};

/*
** Virtual table cursor type for union vtab.
*/
struct UnionCsr {
  sqlite3_vtab_cursor base;       /* Base class - must be first */
  sqlite3_stmt *pStmt;            /* SQL statement to run */
};

/*
** If *pRc is other than SQLITE_OK when this function is called, it
** always returns NULL. Otherwise, it attempts to allocate and return
** a pointer to nByte bytes of zeroed memory. If the memory allocation
** is attempted but fails, NULL is returned and *pRc is set to 
** SQLITE_NOMEM.
*/
static void *unionMalloc(int *pRc, int nByte){
  void *pRet;
  assert( nByte>0 );
  if( *pRc==SQLITE_OK ){
    pRet = sqlite3_malloc(nByte);
    if( pRet ){
      memset(pRet, 0, nByte);
    }else{
      *pRc = SQLITE_NOMEM;
    }
  }else{
    pRet = 0;
  }
  return pRet;
}

/*
** If *pRc is other than SQLITE_OK when this function is called, it
** always returns NULL. Otherwise, it attempts to allocate and return
** a copy of the nul-terminated string passed as the second argument.
** If the allocation is attempted but fails, NULL is returned and *pRc is 
** set to SQLITE_NOMEM.
*/
static char *unionStrdup(int *pRc, const char *zIn){
  char *zRet = 0;
  if( zIn ){
    int nByte = (int)strlen(zIn) + 1;
    zRet = unionMalloc(pRc, nByte);
    if( zRet ){
      memcpy(zRet, zIn, nByte);
    }
  }
  return zRet;
}

/*
** If the first character of the string passed as the only argument to this
** function is one of the 4 that may be used as an open quote character
** in SQL, this function assumes that the input is a well-formed quoted SQL 
** string. In this case the string is dequoted in place.
**
** If the first character of the input is not an open quote, then this
** function is a no-op.
*/
static void unionDequote(char *z){
  if( z ){
    char q = z[0];

    /* Set stack variable q to the close-quote character */
    if( q=='[' || q=='\'' || q=='"' || q=='`' ){
      int iIn = 1;
      int iOut = 0;
      if( q=='[' ) q = ']';  
      while( z[iIn] ){
        if( z[iIn]==q ){
          if( z[iIn+1]!=q ){
            /* Character iIn was the close quote. */
            iIn++;
            break;
          }else{
            /* Character iIn and iIn+1 form an escaped quote character. Skip
            ** the input cursor past both and copy a single quote character 
            ** to the output buffer. */
            iIn += 2;
            z[iOut++] = q;
          }
        }else{
          z[iOut++] = z[iIn++];
        }
      }
      z[iOut] = '\0';
    }
  }
}

/*
** This function is a no-op if *pRc is set to other than SQLITE_OK when it
** is called. NULL is returned in this case.
**
** Otherwise, the SQL statement passed as the third argument is prepared
** against the database handle passed as the second. If the statement is
** successfully prepared, a pointer to the new statement handle is 
** returned. It is the responsibility of the caller to eventually free the
** statement by calling sqlite3_finalize(). Alternatively, if statement
** compilation fails, NULL is returned, *pRc is set to an SQLite error
** code and *pzErr may be set to an error message buffer allocated by
** sqlite3_malloc().
*/
static sqlite3_stmt *unionPrepare(
  int *pRc,                       /* IN/OUT: Error code */
  sqlite3 *db,                    /* Database handle */
  const char *zSql,               /* SQL statement to prepare */
  char **pzErr                    /* OUT: Error message */
){
  sqlite3_stmt *pRet = 0;
  if( *pRc==SQLITE_OK ){
    int rc = sqlite3_prepare_v2(db, zSql, -1, &pRet, 0);
    if( rc!=SQLITE_OK ){
      *pzErr = sqlite3_mprintf("sql error: %s", sqlite3_errmsg(db));
      *pRc = rc;
    }
  }
  return pRet;
}

/*
** Like unionPrepare(), except prepare the results of vprintf(zFmt, ...)
** instead of a constant SQL string.
*/
static sqlite3_stmt *unionPreparePrintf(
  int *pRc,                       /* IN/OUT: Error code */
  char **pzErr,                   /* OUT: Error message */
  sqlite3 *db,                    /* Database handle */
  const char *zFmt,               /* printf() format string */
  ...                             /* Trailing printf args */
){
  sqlite3_stmt *pRet = 0;
  char *zSql;
  va_list ap;
  va_start(ap, zFmt);

  zSql = sqlite3_vmprintf(zFmt, ap);
  if( *pRc==SQLITE_OK ){
    if( zSql==0 ){
      *pRc = SQLITE_NOMEM;
    }else{
      pRet = unionPrepare(pRc, db, zSql, pzErr);
    }
  }
  sqlite3_free(zSql);

  va_end(ap);
  return pRet;
}


/*
** Call sqlite3_reset() on SQL statement pStmt. If *pRc is set to 
** SQLITE_OK when this function is called, then it is set to the
** value returned by sqlite3_reset() before this function exits.
** In this case, *pzErr may be set to point to an error message
** buffer allocated by sqlite3_malloc().
*/
static void unionReset(int *pRc, sqlite3_stmt *pStmt, char **pzErr){
  int rc = sqlite3_reset(pStmt);
  if( *pRc==SQLITE_OK ){
    *pRc = rc;
    if( rc ){
      *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(sqlite3_db_handle(pStmt)));
    }
  }
}

/*
** Call sqlite3_finalize() on SQL statement pStmt. If *pRc is set to 
** SQLITE_OK when this function is called, then it is set to the
** value returned by sqlite3_finalize() before this function exits.
*/
static void unionFinalize(int *pRc, sqlite3_stmt *pStmt){
  int rc = sqlite3_finalize(pStmt);
  if( *pRc==SQLITE_OK ) *pRc = rc;
}

/*
** xDisconnect method.
*/
static int unionDisconnect(sqlite3_vtab *pVtab){
  if( pVtab ){
    UnionTab *pTab = (UnionTab*)pVtab;
    int i;
    for(i=0; i<pTab->nSrc; i++){
      sqlite3_free(pTab->aSrc[i].zDb);
      sqlite3_free(pTab->aSrc[i].zTab);
    }
    sqlite3_free(pTab->aSrc);
    sqlite3_free(pTab);
  }
  return SQLITE_OK;
}

/*
** This function is a no-op if *pRc is other than SQLITE_OK when it is
** called. In this case it returns NULL.
**
** Otherwise, this function checks that the source table passed as the
** second argument (a) exists, (b) is not a view and (c) has a column 
** named "_rowid_" of type "integer" that is the primary key.
** If this is not the case, *pRc is set to SQLITE_ERROR and NULL is
** returned.
**
** Finally, if the source table passes the checks above, a nul-terminated
** string describing the column names and types belonging to the source
** table is returned. Tables with the same set of column names and types 
** cause this function to return identical strings. Is is the responsibility
** of the caller to free the returned string using sqlite3_free() when
** it is no longer required.
*/
static char *unionSourceToStr(
  int *pRc,                       /* IN/OUT: Error code */
  sqlite3 *db,                    /* Database handle */
  UnionSrc *pSrc,                 /* Source table to test */
  sqlite3_stmt *pStmt,
  char **pzErr                    /* OUT: Error message */
){
  char *zRet = 0;
  if( *pRc==SQLITE_OK ){
    int bPk = 0;
    const char *zType = 0;
    int rc;

    sqlite3_table_column_metadata(
        db, pSrc->zDb, pSrc->zTab, "_rowid_", &zType, 0, 0, &bPk, 0
    );
    rc = sqlite3_errcode(db);
    if( rc==SQLITE_ERROR 
     || (rc==SQLITE_OK && (!bPk || sqlite3_stricmp("integer", zType)))
    ){
      rc = SQLITE_ERROR;
      *pzErr = sqlite3_mprintf("no such rowid table: %s%s%s",
          (pSrc->zDb ? pSrc->zDb : ""),
          (pSrc->zDb ? "." : ""),
          pSrc->zTab
      );
    }

    if( rc==SQLITE_OK ){
      sqlite3_bind_text(pStmt, 1, pSrc->zTab, -1, SQLITE_STATIC);
      sqlite3_bind_text(pStmt, 2, pSrc->zDb, -1, SQLITE_STATIC);
      if( SQLITE_ROW==sqlite3_step(pStmt) ){
        zRet = unionStrdup(&rc, (const char*)sqlite3_column_text(pStmt, 0));
      }
      unionReset(&rc, pStmt, pzErr);
    }

    *pRc = rc;
  }

  return zRet;
}

/*
** Check that all configured source tables exist and have the same column
** names and datatypes. If this is not the case, or if some other error
** occurs, return an SQLite error code. In this case *pzErr may be set
** to point to an error message buffer allocated by sqlite3_mprintf().
** Or, if no problems regarding the source tables are detected and no
** other error occurs, SQLITE_OK is returned.
*/
static int unionSourceCheck(UnionTab *pTab, char **pzErr){
  const char *zSql = 
      "SELECT group_concat(quote(name) || '.' || quote(type)) "
      "FROM pragma_table_info(?, ?)";
  int rc = SQLITE_OK;

  if( pTab->nSrc==0 ){
    *pzErr = sqlite3_mprintf("no source tables configured");
    rc = SQLITE_ERROR;
  }else{
    sqlite3_stmt *pStmt = 0;
    char *z0 = 0;
    int i;

    pStmt = unionPrepare(&rc, pTab->db, zSql, pzErr);
    if( rc==SQLITE_OK ){
      z0 = unionSourceToStr(&rc, pTab->db, &pTab->aSrc[0], pStmt, pzErr);
    }
    for(i=1; i<pTab->nSrc; i++){
      char *z = unionSourceToStr(&rc, pTab->db, &pTab->aSrc[i], pStmt, pzErr);
      if( rc==SQLITE_OK && sqlite3_stricmp(z, z0) ){
        *pzErr = sqlite3_mprintf("source table schema mismatch");
        rc = SQLITE_ERROR;
      }
      sqlite3_free(z);
    }

    unionFinalize(&rc, pStmt);
    sqlite3_free(z0);
  }
  return rc;
}

/* 
** xConnect/xCreate method.
**
** The argv[] array contains the following:
**
**   argv[0]   -> module name  ("unionvtab")
**   argv[1]   -> database name
**   argv[2]   -> table name
**   argv[3]   -> SQL statement
*/
static int unionConnect(
  sqlite3 *db,
  void *pAux,
  int argc, const char *const*argv,
  sqlite3_vtab **ppVtab,
  char **pzErr
){
  UnionTab *pTab = 0;
  int rc = SQLITE_OK;

  (void)pAux;   /* Suppress harmless 'unused parameter' warning */
  if( sqlite3_stricmp("temp", argv[1]) ){
    /* unionvtab tables may only be created in the temp schema */
    *pzErr = sqlite3_mprintf("unionvtab tables must be created in TEMP schema");
    rc = SQLITE_ERROR;
  }else if( argc!=4 ){
    *pzErr = sqlite3_mprintf("wrong number of arguments for unionvtab");
    rc = SQLITE_ERROR;
  }else{
    int nAlloc = 0;               /* Allocated size of pTab->aSrc[] */
    sqlite3_stmt *pStmt = 0;      /* Argument statement */
    char *zArg = unionStrdup(&rc, argv[3]);      /* Copy of argument to CVT */

    /* Prepare the SQL statement. Instead of executing it directly, sort
    ** the results by the "minimum rowid" field. This makes it easier to
    ** check that there are no rowid range overlaps between source tables 
    ** and that the UnionTab.aSrc[] array is always sorted by rowid.  */
    unionDequote(zArg);
    pStmt = unionPreparePrintf(&rc, pzErr, db, 
        "SELECT * FROM (%z) ORDER BY 3", zArg
    );

    /* Allocate the UnionTab structure */
    pTab = unionMalloc(&rc, sizeof(UnionTab));

    /* Iterate through the rows returned by the SQL statement specified
    ** as an argument to the CREATE VIRTUAL TABLE statement. */
    while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
      const char *zDb = (const char*)sqlite3_column_text(pStmt, 0);
      const char *zTab = (const char*)sqlite3_column_text(pStmt, 1);
      sqlite3_int64 iMin = sqlite3_column_int64(pStmt, 2);
      sqlite3_int64 iMax = sqlite3_column_int64(pStmt, 3);
      UnionSrc *pSrc;

      /* Grow the pTab->aSrc[] array if required. */
      if( nAlloc<=pTab->nSrc ){
        int nNew = nAlloc ? nAlloc*2 : 8;
        UnionSrc *aNew = (UnionSrc*)sqlite3_realloc(
            pTab->aSrc, nNew*sizeof(UnionSrc)
        );
        if( aNew==0 ){
          rc = SQLITE_NOMEM;
          break;
        }else{
          memset(&aNew[pTab->nSrc], 0, (nNew-pTab->nSrc)*sizeof(UnionSrc));
          pTab->aSrc = aNew;
          nAlloc = nNew;
        }
      }

      /* Check for problems with the specified range of rowids */
      if( iMax<iMin || (pTab->nSrc>0 && iMin<=pTab->aSrc[pTab->nSrc-1].iMax) ){
        *pzErr = sqlite3_mprintf("rowid range mismatch error");
        rc = SQLITE_ERROR;
      }

      pSrc = &pTab->aSrc[pTab->nSrc++];
      pSrc->zDb = unionStrdup(&rc, zDb);
      pSrc->zTab = unionStrdup(&rc, zTab);
      pSrc->iMin = iMin;
      pSrc->iMax = iMax;
    }
    unionFinalize(&rc, pStmt);
    pStmt = 0;

    /* Verify that all source tables exist and have compatible schemas. */
    if( rc==SQLITE_OK ){
      pTab->db = db;
      rc = unionSourceCheck(pTab, pzErr);
    }

    /* Compose a CREATE TABLE statement and pass it to declare_vtab() */
    if( rc==SQLITE_OK ){
      pStmt = unionPreparePrintf(&rc, pzErr, db, "SELECT "
          "'CREATE TABLE xyz('"
          "    || group_concat(quote(name) || ' ' || type, ', ')"
          "    || ')',"
          "max((cid+1) * (type='INTEGER' COLLATE nocase AND pk=1))-1 "
          "FROM pragma_table_info(%Q, ?)", 
          pTab->aSrc[0].zTab, pTab->aSrc[0].zDb
      );
    }
    if( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
      const char *zDecl = (const char*)sqlite3_column_text(pStmt, 0);
      rc = sqlite3_declare_vtab(db, zDecl);
      pTab->iPK = sqlite3_column_int(pStmt, 1);
    }

    unionFinalize(&rc, pStmt);
  }

  if( rc!=SQLITE_OK ){
    unionDisconnect((sqlite3_vtab*)pTab);
    pTab = 0;
  }

  *ppVtab = (sqlite3_vtab*)pTab;
  return rc;
}


/*
** xOpen
*/
static int unionOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
  UnionCsr *pCsr;
  int rc = SQLITE_OK;
  (void)p;  /* Suppress harmless warning */
  pCsr = (UnionCsr*)unionMalloc(&rc, sizeof(UnionCsr));
  *ppCursor = &pCsr->base;
  return rc;
}

/*
** xClose
*/
static int unionClose(sqlite3_vtab_cursor *cur){
  UnionCsr *pCsr = (UnionCsr*)cur;
  sqlite3_finalize(pCsr->pStmt);
  sqlite3_free(pCsr);
  return SQLITE_OK;
}


/*
** xNext
*/
static int unionNext(sqlite3_vtab_cursor *cur){
  UnionCsr *pCsr = (UnionCsr*)cur;
  int rc;
  assert( pCsr->pStmt );
  if( sqlite3_step(pCsr->pStmt)!=SQLITE_ROW ){
    rc = sqlite3_finalize(pCsr->pStmt);
    pCsr->pStmt = 0;
  }else{
    rc = SQLITE_OK;
  }
  return rc;
}

/*
** xColumn
*/
static int unionColumn(
  sqlite3_vtab_cursor *cur,
  sqlite3_context *ctx,
  int i
){
  UnionCsr *pCsr = (UnionCsr*)cur;
  sqlite3_result_value(ctx, sqlite3_column_value(pCsr->pStmt, i+1));
  return SQLITE_OK;
}

/*
** xRowid
*/
static int unionRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
  UnionCsr *pCsr = (UnionCsr*)cur;
  *pRowid = sqlite3_column_int64(pCsr->pStmt, 0);
  return SQLITE_OK;
}

/*
** xEof
*/
static int unionEof(sqlite3_vtab_cursor *cur){
  UnionCsr *pCsr = (UnionCsr*)cur;
  return pCsr->pStmt==0;
}

/*
** xFilter
*/
static int unionFilter(
  sqlite3_vtab_cursor *pVtabCursor, 
  int idxNum, const char *idxStr,
  int argc, sqlite3_value **argv
){
  UnionTab *pTab = (UnionTab*)(pVtabCursor->pVtab);
  UnionCsr *pCsr = (UnionCsr*)pVtabCursor;
  int rc = SQLITE_OK;
  int i;
  char *zSql = 0;
  int bZero = 0;

  sqlite3_int64 iMin = SMALLEST_INT64;
  sqlite3_int64 iMax = LARGEST_INT64;

  assert( idxNum==0 
       || idxNum==SQLITE_INDEX_CONSTRAINT_EQ
       || idxNum==SQLITE_INDEX_CONSTRAINT_LE
       || idxNum==SQLITE_INDEX_CONSTRAINT_GE
       || idxNum==SQLITE_INDEX_CONSTRAINT_LT
       || idxNum==SQLITE_INDEX_CONSTRAINT_GT
       || idxNum==(SQLITE_INDEX_CONSTRAINT_GE|SQLITE_INDEX_CONSTRAINT_LE)
  );

  (void)idxStr;  /* Suppress harmless warning */
  
  if( idxNum==SQLITE_INDEX_CONSTRAINT_EQ ){
    assert( argc==1 );
    iMin = iMax = sqlite3_value_int64(argv[0]);
  }else{

    if( idxNum & (SQLITE_INDEX_CONSTRAINT_LE|SQLITE_INDEX_CONSTRAINT_LT) ){
      assert( argc>=1 );
      iMax = sqlite3_value_int64(argv[0]);
      if( idxNum & SQLITE_INDEX_CONSTRAINT_LT ){
        if( iMax==SMALLEST_INT64 ){
          bZero = 1;
        }else{
          iMax--;
        }
      }
    }

    if( idxNum & (SQLITE_INDEX_CONSTRAINT_GE|SQLITE_INDEX_CONSTRAINT_GT) ){
      assert( argc>=1 );
      iMin = sqlite3_value_int64(argv[argc-1]);
      if( idxNum & SQLITE_INDEX_CONSTRAINT_GT ){
        if( iMin==LARGEST_INT64 ){
          bZero = 1;
        }else{
          iMin++;
        }
      }
    }
  }

  sqlite3_finalize(pCsr->pStmt);
  pCsr->pStmt = 0;
  if( bZero ){
    return SQLITE_OK;
  }

  for(i=0; i<pTab->nSrc; i++){
    UnionSrc *pSrc = &pTab->aSrc[i];
    if( iMin>pSrc->iMax || iMax<pSrc->iMin ){
      continue;
    }

    zSql = sqlite3_mprintf("%z%sSELECT rowid, * FROM %s%q%s%Q"
        , zSql
        , (zSql ? " UNION ALL " : "")
        , (pSrc->zDb ? "'" : "")
        , (pSrc->zDb ? pSrc->zDb : "")
        , (pSrc->zDb ? "'." : "")
        , pSrc->zTab
    );
    if( zSql==0 ){
      rc = SQLITE_NOMEM;
      break;
    }

    if( iMin==iMax ){
      zSql = sqlite3_mprintf("%z WHERE rowid=%lld", zSql, iMin);
    }else{
      const char *zWhere = "WHERE";
      if( iMin!=SMALLEST_INT64 && iMin>pSrc->iMin ){
        zSql = sqlite3_mprintf("%z WHERE rowid>=%lld", zSql, iMin);
        zWhere = "AND";
      }
      if( iMax!=LARGEST_INT64 && iMax<pSrc->iMax ){
        zSql = sqlite3_mprintf("%z %s rowid<=%lld", zSql, zWhere, iMax);
      }
    }
  }


  if( zSql==0 ) return rc;
  pCsr->pStmt = unionPrepare(&rc, pTab->db, zSql, &pTab->base.zErrMsg);
  sqlite3_free(zSql);
  if( rc!=SQLITE_OK ) return rc;
  return unionNext(pVtabCursor);
}

/*
** xBestIndex.
**
** This implementation searches for constraints on the rowid field. EQ, 
** LE, LT, GE and GT are handled.
**
** If there is an EQ comparison, then idxNum is set to INDEX_CONSTRAINT_EQ.
** In this case the only argument passed to xFilter is the rhs of the ==
** operator.
**
** Otherwise, if an LE or LT constraint is found, then the INDEX_CONSTRAINT_LE
** or INDEX_CONSTRAINT_LT (but not both) bit is set in idxNum. The first
** argument to xFilter is the rhs of the <= or < operator.  Similarly, if 
** an GE or GT constraint is found, then the INDEX_CONSTRAINT_GE or
** INDEX_CONSTRAINT_GT bit is set in idxNum. The rhs of the >= or > operator
** is passed as either the first or second argument to xFilter, depending
** on whether or not there is also a LT|LE constraint.
*/
static int unionBestIndex(
  sqlite3_vtab *tab,
  sqlite3_index_info *pIdxInfo
){
  UnionTab *pTab = (UnionTab*)tab;
  int iEq = -1;
  int iLt = -1;
  int iGt = -1;
  int i;

  for(i=0; i<pIdxInfo->nConstraint; i++){
    struct sqlite3_index_constraint *p = &pIdxInfo->aConstraint[i];
    if( p->usable && (p->iColumn<0 || p->iColumn==pTab->iPK) ){
      switch( p->op ){
        case SQLITE_INDEX_CONSTRAINT_EQ:
          iEq = i;
          break;
        case SQLITE_INDEX_CONSTRAINT_LE:
        case SQLITE_INDEX_CONSTRAINT_LT:
          iLt = i;
          break;
        case SQLITE_INDEX_CONSTRAINT_GE:
        case SQLITE_INDEX_CONSTRAINT_GT:
          iGt = i;
          break;
      }
    }
  }

  if( iEq>=0 ){
    pIdxInfo->estimatedRows = 1;
    pIdxInfo->idxFlags = SQLITE_INDEX_SCAN_UNIQUE;
    pIdxInfo->estimatedCost = 3.0;
    pIdxInfo->idxNum = SQLITE_INDEX_CONSTRAINT_EQ;
    pIdxInfo->aConstraintUsage[iEq].argvIndex = 1;
    pIdxInfo->aConstraintUsage[iEq].omit = 1;
  }else{
    int iCons = 1;
    int idxNum = 0;
    sqlite3_int64 nRow = 1000000;
    if( iLt>=0 ){
      nRow = nRow / 2;
      pIdxInfo->aConstraintUsage[iLt].argvIndex = iCons++;
      pIdxInfo->aConstraintUsage[iLt].omit = 1;
      idxNum |= pIdxInfo->aConstraint[iLt].op;
    }
    if( iGt>=0 ){
      nRow = nRow / 2;
      pIdxInfo->aConstraintUsage[iGt].argvIndex = iCons++;
      pIdxInfo->aConstraintUsage[iGt].omit = 1;
      idxNum |= pIdxInfo->aConstraint[iGt].op;
    }
    pIdxInfo->estimatedRows = nRow;
    pIdxInfo->estimatedCost = 3.0 * (double)nRow;
    pIdxInfo->idxNum = idxNum;
  }

  return SQLITE_OK;
}

/*
** Register the unionvtab virtual table module with database handle db.
*/
static int createUnionVtab(sqlite3 *db){
  static sqlite3_module unionModule = {
    0,                            /* iVersion */
    unionConnect,
    unionConnect,
    unionBestIndex,               /* xBestIndex - query planner */
    unionDisconnect, 
    unionDisconnect,
    unionOpen,                    /* xOpen - open a cursor */
    unionClose,                   /* xClose - close a cursor */
    unionFilter,                  /* xFilter - configure scan constraints */
    unionNext,                    /* xNext - advance a cursor */
    unionEof,                     /* xEof - check for end of scan */
    unionColumn,                  /* xColumn - read data */
    unionRowid,                   /* xRowid - read data */
    0,                            /* xUpdate */
    0,                            /* xBegin */
    0,                            /* xSync */
    0,                            /* xCommit */
    0,                            /* xRollback */
    0,                            /* xFindMethod */
    0,                            /* xRename */
    0,                            /* xSavepoint */
    0,                            /* xRelease */
    0                             /* xRollbackTo */
  };

  return sqlite3_create_module(db, "unionvtab", &unionModule, 0);
}

#endif /* SQLITE_OMIT_VIRTUALTABLE */

#ifdef _WIN32
__declspec(dllexport)
#endif
int sqlite3_unionvtab_init(
  sqlite3 *db, 
  char **pzErrMsg, 
  const sqlite3_api_routines *pApi
){
  int rc = SQLITE_OK;
  SQLITE_EXTENSION_INIT2(pApi);
  (void)pzErrMsg;  /* Suppress harmless warning */
#ifndef SQLITE_OMIT_VIRTUALTABLE
  rc = createUnionVtab(db);
#endif
  return rc;
}
Changes to ext/rbu/rbuA.test.
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
66
67
68
69
70
71
72

73
74
75
76
77
78
79







-







  rbu close
} {SQLITE_OK}

do_test 2.1 {
  sqlite3 db test.db
  db eval {PRAGMA journal_mode = wal}
  db close
  breakpoint
  sqlite3rbu rbu test.db rbu.db
  rbu step
} {SQLITE_ERROR}

do_test 2.2 {
  list [catch { rbu close } msg] $msg
} {1 {SQLITE_ERROR - cannot update wal mode database}}
Changes to ext/rbu/rbucrash.test.
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
49
50
51
52
53
54
55

56
57
58
59
60
61
62







-







# update using many calls to sqlite3rbu_step() on a single rbu handle
# as required to apply it using a series of rbu handles, on each of 
# which sqlite3rbu_step() is called once.
#
do_test 1.1 {
  db_restore
  sqlite3rbu rbu test.db test.db2
  breakpoint
  set nStep 0
  while {[rbu step]=="SQLITE_OK"} { incr nStep }
  rbu close
} {SQLITE_DONE}
set rbu_num_steps $nStep
do_test 1.2 {
  db_restore
Changes to ext/rtree/rtree1.test.
334
335
336
337
338
339
340
341

342
343
344
345
346
347
348
349
350
351

352
353
354
355
356
357
358
334
335
336
337
338
339
340

341
342
343
344
345
346
347
348
349
350

351
352
353
354
355
356
357
358







-
+









-
+








# An error midway through a rename operation.
do_test rtree-7.2.1 {
  execsql { 
    CREATE TABLE t4_node(a);
  }
  catchsql { ALTER TABLE "abc 123" RENAME TO t4 }
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_test rtree-7.2.2 {
  execsql_intout { SELECT * FROM "abc 123" }
} {1 2 3 4 5 6 7}
do_test rtree-7.2.3 {
  execsql { 
    DROP TABLE t4_node;
    CREATE TABLE t4_rowid(a);
  }
  catchsql { ALTER TABLE "abc 123" RENAME TO t4 }
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_test rtree-7.2.4 {
  db close
  sqlite3 db test.db
  execsql_intout { SELECT * FROM "abc 123" }
} {1 2 3 4 5 6 7}
do_test rtree-7.2.5 {
  execsql { DROP TABLE t4_rowid }
600
601
602
603
604
605
606
607
608
609
610
611
612
613
600
601
602
603
604
605
606

607
608
609
610
611
612







-






  CREATE VIRTUAL TABLE rt USING rtree(id, x1,x2, y1,y2);
  CREATE TEMP TABLE t13(a, b, c);
}
do_execsql_test 15.1 {
  BEGIN;
  INSERT INTO rt VALUES(1,2,3,4,5);
}
breakpoint
do_execsql_test 15.2 {
  DROP TABLE t13;
  COMMIT;
}

finish_test
Changes to ext/rtree/rtree8.test.
125
126
127
128
129
130
131
132

133
134
135
136
137
138
139
125
126
127
128
129
130
131

132
133
134
135
136
137
138
139







-
+







#-------------------------------------------------------------------------
# Test that trying to use the MATCH operator with the r-tree module does
# not confuse it. 
#
populate_t1 10
do_catchsql_test rtree8-3.1 { 
  SELECT * FROM t1 WHERE x1 MATCH '1234'
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}

#-------------------------------------------------------------------------
# Test a couple of invalid arguments to rtreedepth().
#
do_catchsql_test rtree8-4.1 {
  SELECT rtreedepth('hello world')
} {1 {Invalid argument to rtreedepth()}}
Changes to ext/rtree/rtree9.test.
65
66
67
68
69
70
71
72

73
74
75
76

77
78
79
80
81
82

83
84
85
86
87
88
89
65
66
67
68
69
70
71

72
73
74
75

76
77
78
79
80
81

82
83
84
85
86
87
88
89







-
+



-
+





-
+







do_execsql_test rtree9-3.3 {
  SELECT id FROM rt32 WHERE id MATCH cube(5.5, 5.5, 5.5, 1, 1, 1) ORDER BY id;
} {555 556 565 566 655 656 665 666}


do_catchsql_test rtree9-4.1 {
  SELECT id FROM rt32 WHERE id MATCH cube(5.5, 5.5, 1, 1, 1) ORDER BY id;
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
for {set x 2} {$x<200} {incr x 2} {
  do_catchsql_test rtree9-4.2.[expr $x/2] {
    SELECT id FROM rt WHERE id MATCH randomblob($x)
  } {1 {SQL logic error or missing database}}
  } {1 {SQL logic error}}
}
do_catchsql_test rtree9-4.3 {
  SELECT id FROM rt WHERE id MATCH CAST( 
    (cube(5.5, 5.5, 5.5, 1, 1, 1) || X'1234567812345678') AS blob 
  )
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}


#-------------------------------------------------------------------------
# Test the example 2d "circle" geometry callback.
#
register_circle_geom db

Changes to ext/rtree/rtreeD.test.
49
50
51
52
53
54
55
56
57
49
50
51
52
53
54
55









-
-

  do_test 1.$tn.4 {
    list [catch { sql2 { SELECT * FROM rt } } msg] $msg
  } {1 {database is locked}}
}

finish_test


Changes to ext/session/session1.test.
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
532
533
534
535
536
537
538

539
540
541
542
543
544
545







-







  sqlite3session S db main
  S attach $tblname
  execsql " 
    INSERT INTO $tblname VALUES('uvw', 'abc');
    DELETE FROM $tblname WHERE a = 'xyz';
  "
} {}
breakpoint
do_changeset_test $tn.10.1.2 S "
  {INSERT $tblname 0 X. {} {t uvw t abc}}
  {DELETE $tblname 0 X. {t xyz t def} {}}
"
do_test $tn.10.1.4 { S delete } {}

#---------------------------------------------------------------
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
572
573
574
575
576
577
578

579
580
581
582
583
584
585







-







  sqlite3session S db main
  S attach $tblname
  execsql " 
    INSERT INTO $tblname VALUES('uvw', 'abc');
    DELETE FROM $tblname WHERE a = 'xyz';
  "
} {}
breakpoint
do_changeset_test $tn.10.1.2 S "
  {INSERT $tblname 0 X. {} {t uvw t abc}}
  {DELETE $tblname 0 X. {t xyz t def} {}}
"
do_test $tn.10.1.4 { S delete } {}

#-------------------------------------------------------------------------
Changes to ext/session/sessionE.test.
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
38
39
40
41
42
43
44

45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63

64
65
66
67
68
69
70







-



















-







do_execsql_test 1.0 {
  CREATE TABLE t1(a, b);
  CREATE TABLE t2(a PRIMARY KEY, b);
}
do_test 1.1 {
  sqlite3session S db main
  S attach *
  breakpoint
  execsql {
    INSERT INTO t1 VALUES(1, 2);
    INSERT INTO t2 VALUES(1, 2);
  }
} {}
do_changeset_test 1.2 S {
  {INSERT t2 0 X. {} {i 1 i 2}}
}
S delete

reset_db
do_execsql_test 2.0 {
  CREATE TABLE t1(a, b);
  CREATE TABLE t2(a PRIMARY KEY, b);
}
do_test 2.1 {
  sqlite3session S db main
  S attach t1
  S attach t2
  breakpoint
  execsql {
    INSERT INTO t1 VALUES(3, 4);
    INSERT INTO t2 VALUES(3, 4);
    INSERT INTO t1 VALUES(5, 6);
    INSERT INTO t2 VALUES(5, 6);
  }
} {}
Changes to main.mk.
340
341
342
343
344
345
346

347
348
349
350
351
352
353
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354







+







  $(TOP)/ext/misc/nextchar.c \
  $(TOP)/ext/misc/percentile.c \
  $(TOP)/ext/misc/regexp.c \
  $(TOP)/ext/misc/remember.c \
  $(TOP)/ext/misc/series.c \
  $(TOP)/ext/misc/spellfix.c \
  $(TOP)/ext/misc/totype.c \
  $(TOP)/ext/misc/unionvtab.c \
  $(TOP)/ext/misc/wholenumber.c \
  $(TOP)/ext/misc/vfslog.c \
  $(TOP)/ext/fts5/fts5_tcl.c \
  $(TOP)/ext/fts5/fts5_test_mi.c \
  $(TOP)/ext/fts5/fts5_test_tok.c 


Changes to src/btree.c.
1645
1646
1647
1648
1649
1650
1651
1652

1653
1654
1655
1656
1657
1658
1659
1645
1646
1647
1648
1649
1650
1651

1652
1653
1654
1655
1656
1657
1658
1659







-
+







  assert( CORRUPT_DB || iEnd <= pPage->pBt->usableSize );
  assert( sqlite3_mutex_held(pPage->pBt->mutex) );
  assert( iSize>=4 );   /* Minimum cell size is 4 */
  assert( iStart<=iLast );

  /* Overwrite deleted information with zeros when the secure_delete
  ** option is enabled */
  if( pPage->pBt->btsFlags & BTS_SECURE_DELETE ){
  if( pPage->pBt->btsFlags & BTS_FAST_SECURE ){
    memset(&data[iStart], 0, iSize);
  }

  /* The list of freeblocks must be in ascending order.  Find the 
  ** spot on the list where iStart should be inserted.
  */
  hdr = pPage->hdrOffset;
1936
1937
1938
1939
1940
1941
1942
1943

1944
1945
1946
1947
1948
1949
1950
1936
1937
1938
1939
1940
1941
1942

1943
1944
1945
1946
1947
1948
1949
1950







-
+







  u16 first;

  assert( sqlite3PagerPagenumber(pPage->pDbPage)==pPage->pgno );
  assert( sqlite3PagerGetExtra(pPage->pDbPage) == (void*)pPage );
  assert( sqlite3PagerGetData(pPage->pDbPage) == data );
  assert( sqlite3PagerIswriteable(pPage->pDbPage) );
  assert( sqlite3_mutex_held(pBt->mutex) );
  if( pBt->btsFlags & BTS_SECURE_DELETE ){
  if( pBt->btsFlags & BTS_FAST_SECURE ){
    memset(&data[hdr], 0, pBt->usableSize - hdr);
  }
  data[hdr] = (char)flags;
  first = hdr + ((flags&PTF_LEAF)==0 ? 12 : 8);
  memset(&data[hdr+1], 0, 4);
  data[hdr+7] = 0;
  put2byte(&data[hdr+5], pBt->usableSize);
2359
2360
2361
2362
2363
2364
2365
2366

2367


2368
2369
2370
2371
2372
2373
2374
2359
2360
2361
2362
2363
2364
2365

2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376







-
+

+
+







    pBt->db = db;
    sqlite3PagerSetBusyhandler(pBt->pPager, btreeInvokeBusyHandler, pBt);
    p->pBt = pBt;
  
    pBt->pCursor = 0;
    pBt->pPage1 = 0;
    if( sqlite3PagerIsreadonly(pBt->pPager) ) pBt->btsFlags |= BTS_READ_ONLY;
#ifdef SQLITE_SECURE_DELETE
#if defined(SQLITE_SECURE_DELETE)
    pBt->btsFlags |= BTS_SECURE_DELETE;
#elif defined(SQLITE_FAST_SECURE_DELETE)
    pBt->btsFlags |= BTS_OVERWRITE;
#endif
    /* EVIDENCE-OF: R-51873-39618 The page size for a database file is
    ** determined by the 2-byte integer located at an offset of 16 bytes from
    ** the beginning of the database file. */
    pBt->pageSize = (zDbHeader[16]<<8) | (zDbHeader[17]<<16);
    if( pBt->pageSize<512 || pBt->pageSize>SQLITE_MAX_PAGE_SIZE
         || ((pBt->pageSize-1)&pBt->pageSize)!=0 ){
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
















2818
2819
2820
2821
2822


2823
2824
2825
2826
2827




2828
2829
2830
2831
2832
2833
2834
2810
2811
2812
2813
2814
2815
2816



2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840




2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851







-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+





+
+

-
-
-
-
+
+
+
+







  sqlite3BtreeEnter(p);
  n = sqlite3PagerMaxPageCount(p->pBt->pPager, mxPage);
  sqlite3BtreeLeave(p);
  return n;
}

/*
** Set the BTS_SECURE_DELETE flag if newFlag is 0 or 1.  If newFlag is -1,
** then make no changes.  Always return the value of the BTS_SECURE_DELETE
** setting after the change.
** Change the values for the BTS_SECURE_DELETE and BTS_OVERWRITE flags:
**
**    newFlag==0       Both BTS_SECURE_DELETE and BTS_OVERWRITE are cleared
**    newFlag==1       BTS_SECURE_DELETE set and BTS_OVERWRITE is cleared
**    newFlag==2       BTS_SECURE_DELETE cleared and BTS_OVERWRITE is set
**    newFlag==(-1)    No changes
**
** This routine acts as a query if newFlag is less than zero
**
** With BTS_OVERWRITE set, deleted content is overwritten by zeros, but
** freelist leaf pages are not written back to the database.  Thus in-page
** deleted content is cleared, but freelist deleted content is not.
**
** With BTS_SECURE_DELETE, operation is like BTS_OVERWRITE with the addition
** that freelist leaf pages are written back into the database, increasing
** the amount of disk I/O.
*/
int sqlite3BtreeSecureDelete(Btree *p, int newFlag){
  int b;
  if( p==0 ) return 0;
  sqlite3BtreeEnter(p);
  assert( BTS_OVERWRITE==BTS_SECURE_DELETE*2 );
  assert( BTS_FAST_SECURE==(BTS_OVERWRITE|BTS_SECURE_DELETE) );
  if( newFlag>=0 ){
    p->pBt->btsFlags &= ~BTS_SECURE_DELETE;
    if( newFlag ) p->pBt->btsFlags |= BTS_SECURE_DELETE;
  } 
  b = (p->pBt->btsFlags & BTS_SECURE_DELETE)!=0;
    p->pBt->btsFlags &= ~BTS_FAST_SECURE;
    p->pBt->btsFlags |= BTS_SECURE_DELETE*newFlag;
  }
  b = (p->pBt->btsFlags & BTS_FAST_SECURE)/BTS_SECURE_DELETE;
  sqlite3BtreeLeave(p);
  return b;
}

/*
** Change the 'auto-vacuum' property of the database. If the 'autoVacuum'
** parameter is non-zero, then auto-vacuum mode is enabled. If zero, it
5446
5447
5448
5449
5450
5451
5452
5453
5454
5455
5456





5457
5458

5459
5460
5461
5462
5463
5464
5465
5466
5467
5468
5469
5470
5471
5472
5463
5464
5465
5466
5467
5468
5469




5470
5471
5472
5473
5474
5475

5476
5477
5478
5479
5480
5481
5482

5483
5484
5485
5486
5487
5488
5489







-
-
-
-
+
+
+
+
+

-
+






-







**
** The main entry point is sqlite3BtreeNext().  That routine is optimized
** for the common case of merely incrementing the cell counter BtCursor.aiIdx
** to the next cell on the current page.  The (slower) btreeNext() helper
** routine is called when it is necessary to move to a different page or
** to restore the cursor.
**
** If bit 0x01 of the flags argument is 1, then the cursor corresponds to
** an SQL index and this routine could have been skipped if the SQL index
** had been a unique index.  The flags argument is a hint to the implement.
** SQLite btree implementation does not use this hint, but COMDB2 does.
** If bit 0x01 of the F argument in sqlite3BtreeNext(C,F) is 1, then the
** cursor corresponds to an SQL index and this routine could have been
** skipped if the SQL index had been a unique index.  The F argument
** is a hint to the implement.  SQLite btree implementation does not use
** this hint, but COMDB2 does.
*/
static SQLITE_NOINLINE int btreeNext(BtCursor *pCur, int flags){
static SQLITE_NOINLINE int btreeNext(BtCursor *pCur){
  int rc;
  int idx;
  MemPage *pPage;

  assert( cursorOwnsBtShared(pCur) );
  assert( pCur->skipNext==0 || pCur->eState!=CURSOR_VALID );
  assert( flags==0 );
  if( pCur->eState!=CURSOR_VALID ){
    assert( (pCur->curFlags & BTCF_ValidOvfl)==0 );
    rc = restoreCursorPosition(pCur);
    if( rc!=SQLITE_OK ){
      return rc;
    }
    if( CURSOR_INVALID==pCur->eState ){
5505
5506
5507
5508
5509
5510
5511
5512

5513
5514
5515
5516
5517
5518
5519
5520
5521
5522
5523
5524

5525
5526
5527
5528
5529
5530

5531
5532
5533
5534

5535
5536
5537
5538
5539
5540
5541
5522
5523
5524
5525
5526
5527
5528

5529
5530
5531
5532
5533
5534
5535
5536
5537
5538
5539
5540
5541
5542
5543
5544
5545
5546
5547

5548
5549
5550
5551

5552
5553
5554
5555
5556
5557
5558
5559







-
+












+





-
+



-
+







        pCur->eState = CURSOR_INVALID;
        return SQLITE_DONE;
      }
      moveToParent(pCur);
      pPage = pCur->apPage[pCur->iPage];
    }while( pCur->ix>=pPage->nCell );
    if( pPage->intKey ){
      return sqlite3BtreeNext(pCur, flags);
      return sqlite3BtreeNext(pCur, 0);
    }else{
      return SQLITE_OK;
    }
  }
  if( pPage->leaf ){
    return SQLITE_OK;
  }else{
    return moveToLeftmost(pCur);
  }
}
int sqlite3BtreeNext(BtCursor *pCur, int flags){
  MemPage *pPage;
  UNUSED_PARAMETER( flags );  /* Used in COMDB2 but not native SQLite */
  assert( cursorOwnsBtShared(pCur) );
  assert( flags==0 || flags==1 );
  assert( pCur->skipNext==0 || pCur->eState!=CURSOR_VALID );
  pCur->info.nSize = 0;
  pCur->curFlags &= ~(BTCF_ValidNKey|BTCF_ValidOvfl);
  if( pCur->eState!=CURSOR_VALID ) return btreeNext(pCur, 0);
  if( pCur->eState!=CURSOR_VALID ) return btreeNext(pCur);
  pPage = pCur->apPage[pCur->iPage];
  if( (++pCur->ix)>=pPage->nCell ){
    pCur->ix--;
    return btreeNext(pCur, 0);
    return btreeNext(pCur);
  }
  if( pPage->leaf ){
    return SQLITE_OK;
  }else{
    return moveToLeftmost(pCur);
  }
}
5550
5551
5552
5553
5554
5555
5556
5557
5558
5559
5560
5561





5562
5563

5564
5565
5566
5567
5568
5569
5570
5571
5572
5573
5574
5575
5568
5569
5570
5571
5572
5573
5574





5575
5576
5577
5578
5579
5580

5581
5582
5583
5584
5585

5586
5587
5588
5589
5590
5591
5592







-
-
-
-
-
+
+
+
+
+

-
+




-







**
** The main entry point is sqlite3BtreePrevious().  That routine is optimized
** for the common case of merely decrementing the cell counter BtCursor.aiIdx
** to the previous cell on the current page.  The (slower) btreePrevious()
** helper routine is called when it is necessary to move to a different page
** or to restore the cursor.
**
**
** If bit 0x01 of the flags argument is 1, then the cursor corresponds to
** an SQL index and this routine could have been skipped if the SQL index
** had been a unique index.  The flags argument is a hint to the implement.
** SQLite btree implementation does not use this hint, but COMDB2 does.
** If bit 0x01 of the F argument to sqlite3BtreePrevious(C,F) is 1, then
** the cursor corresponds to an SQL index and this routine could have been
** skipped if the SQL index had been a unique index.  The F argument is a
** hint to the implement.  The native SQLite btree implementation does not
** use this hint, but COMDB2 does.
*/
static SQLITE_NOINLINE int btreePrevious(BtCursor *pCur, int flags){
static SQLITE_NOINLINE int btreePrevious(BtCursor *pCur){
  int rc;
  MemPage *pPage;

  assert( cursorOwnsBtShared(pCur) );
  assert( flags==0 );
  assert( pCur->skipNext==0 || pCur->eState!=CURSOR_VALID );
  assert( (pCur->curFlags & (BTCF_AtLast|BTCF_ValidOvfl|BTCF_ValidNKey))==0 );
  assert( pCur->info.nSize==0 );
  if( pCur->eState!=CURSOR_VALID ){
    rc = restoreCursorPosition(pCur);
    if( rc!=SQLITE_OK ){
      return rc;
5605
5606
5607
5608
5609
5610
5611
5612

5613
5614
5615
5616
5617
5618
5619
5620
5621
5622

5623
5624
5625
5626
5627
5628
5629

5630
5631
5632
5633
5634
5635
5636
5622
5623
5624
5625
5626
5627
5628

5629
5630
5631
5632
5633
5634
5635
5636
5637
5638
5639
5640
5641
5642
5643
5644
5645
5646

5647
5648
5649
5650
5651
5652
5653
5654







-
+










+






-
+







    }
    assert( pCur->info.nSize==0 );
    assert( (pCur->curFlags & (BTCF_ValidOvfl))==0 );

    pCur->ix--;
    pPage = pCur->apPage[pCur->iPage];
    if( pPage->intKey && !pPage->leaf ){
      rc = sqlite3BtreePrevious(pCur, flags);
      rc = sqlite3BtreePrevious(pCur, 0);
    }else{
      rc = SQLITE_OK;
    }
  }
  return rc;
}
int sqlite3BtreePrevious(BtCursor *pCur, int flags){
  assert( cursorOwnsBtShared(pCur) );
  assert( flags==0 || flags==1 );
  assert( pCur->skipNext==0 || pCur->eState!=CURSOR_VALID );
  UNUSED_PARAMETER( flags );  /* Used in COMDB2 but not native SQLite */
  pCur->curFlags &= ~(BTCF_AtLast|BTCF_ValidOvfl|BTCF_ValidNKey);
  pCur->info.nSize = 0;
  if( pCur->eState!=CURSOR_VALID
   || pCur->ix==0
   || pCur->apPage[pCur->iPage]->leaf==0
  ){
    return btreePrevious(pCur, 0);
    return btreePrevious(pCur);
  }
  pCur->ix--;
  return SQLITE_OK;
}

#ifdef SQLITE_SERVER_EDITION

7482
7483
7484
7485
7486
7487
7488
7489

7490
7491
7492
7493
7494
7495
7496
7500
7501
7502
7503
7504
7505
7506

7507
7508
7509
7510
7511
7512
7513
7514







-
+







      ** later on.  
      **
      ** But not if we are in secure-delete mode. In secure-delete mode,
      ** the dropCell() routine will overwrite the entire cell with zeroes.
      ** In this case, temporarily copy the cell into the aOvflSpace[]
      ** buffer. It will be copied out again as soon as the aSpace[] buffer
      ** is allocated.  */
      if( pBt->btsFlags & BTS_SECURE_DELETE ){
      if( pBt->btsFlags & BTS_FAST_SECURE ){
        int iOff;

        iOff = SQLITE_PTR_TO_INT(apDiv[i]) - SQLITE_PTR_TO_INT(pParent->aData);
        if( (iOff+szNew[i])>(int)pBt->usableSize ){
          rc = SQLITE_CORRUPT_BKPT;
          memset(apOld, 0, (i+1)*sizeof(MemPage*));
          goto balance_cleanup;
Changes to src/btreeInt.h.
444
445
446
447
448
449
450


451
452
453
454




455
456
457
458
459
460
461
444
445
446
447
448
449
450
451
452




453
454
455
456
457
458
459
460
461
462
463







+
+
-
-
-
-
+
+
+
+








/*
** Allowed values for BtShared.btsFlags
*/
#define BTS_READ_ONLY        0x0001   /* Underlying file is readonly */
#define BTS_PAGESIZE_FIXED   0x0002   /* Page size can no longer be changed */
#define BTS_SECURE_DELETE    0x0004   /* PRAGMA secure_delete is enabled */
#define BTS_OVERWRITE        0x0008   /* Overwrite deleted content with zeros */
#define BTS_FAST_SECURE      0x000c   /* Combination of the previous two */
#define BTS_INITIALLY_EMPTY  0x0008   /* Database was empty at trans start */
#define BTS_NO_WAL           0x0010   /* Do not open write-ahead-log files */
#define BTS_EXCLUSIVE        0x0020   /* pWriter has an exclusive lock */
#define BTS_PENDING          0x0040   /* Waiting for read-locks to clear */
#define BTS_INITIALLY_EMPTY  0x0010   /* Database was empty at trans start */
#define BTS_NO_WAL           0x0020   /* Do not open write-ahead-log files */
#define BTS_EXCLUSIVE        0x0040   /* pWriter has an exclusive lock */
#define BTS_PENDING          0x0080   /* Waiting for read-locks to clear */

/*
** An instance of the following structure is used to hold information
** about a cell.  The parseCellPtr() function fills in this structure
** based on information extract from the raw disk page.
*/
struct CellInfo {
Changes to src/dbstat.c.
690
691
692
693
694
695
696



697
698
699
700
701
702
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705







+
+
+






    0,                            /* xUpdate */
    0,                            /* xBegin */
    0,                            /* xSync */
    0,                            /* xCommit */
    0,                            /* xRollback */
    0,                            /* xFindMethod */
    0,                            /* xRename */
    0,                            /* xSavepoint */
    0,                            /* xRelease */
    0,                            /* xRollbackTo */
  };
  return sqlite3_create_module(db, "dbstat", &dbstat_module, 0);
}
#elif defined(SQLITE_ENABLE_DBSTAT_VTAB)
int sqlite3DbstatRegister(sqlite3 *db){ return SQLITE_OK; }
#endif /* SQLITE_ENABLE_DBSTAT_VTAB */
Changes to src/expr.c.
5251
5252
5253
5254
5255
5256
5257
5258
5259


5260
5261
5262
5263
5264
5265
5266
5251
5252
5253
5254
5255
5256
5257


5258
5259
5260
5261
5262
5263
5264
5265
5266







-
-
+
+







** iFirst..iLast, inclusive.  This routine is only call from within assert()
** statements.
*/
#ifdef SQLITE_DEBUG
int sqlite3NoTempsInRange(Parse *pParse, int iFirst, int iLast){
  int i;
  if( pParse->nRangeReg>0
   && pParse->iRangeReg+pParse->nRangeReg<iLast
   && pParse->iRangeReg>=iFirst
   && pParse->iRangeReg+pParse->nRangeReg > iFirst
   && pParse->iRangeReg <= iLast
  ){
     return 0;
  }
  for(i=0; i<pParse->nTempReg; i++){
    if( pParse->aTempReg[i]>=iFirst && pParse->aTempReg[i]<=iLast ){
      return 0;
    }
Changes to src/func.c.
81
82
83
84
85
86
87




88
89
90
91
92
93
94
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98







+
+
+
+







  UNUSED_PARAMETER(NotUsed);
  assert( i>=0 && i<ArraySize(azType) );
  assert( SQLITE_INTEGER==1 );
  assert( SQLITE_FLOAT==2 );
  assert( SQLITE_TEXT==3 );
  assert( SQLITE_BLOB==4 );
  assert( SQLITE_NULL==5 );
  /* EVIDENCE-OF: R-01470-60482 The sqlite3_value_type(V) interface returns
  ** the datatype code for the initial datatype of the sqlite3_value object
  ** V. The returned value is one of SQLITE_INTEGER, SQLITE_FLOAT,
  ** SQLITE_TEXT, SQLITE_BLOB, or SQLITE_NULL. */
  sqlite3_result_text(context, azType[i], -1, SQLITE_STATIC);
}


/*
** Implementation of the length() function
*/
Changes to src/loadext.c.
47
48
49
50
51
52
53

54
55
56
57
58
59
60
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61







+







# define sqlite3_complete16             0
# define sqlite3_create_collation16     0
# define sqlite3_create_function16      0
# define sqlite3_errmsg16               0
# define sqlite3_open16                 0
# define sqlite3_prepare16              0
# define sqlite3_prepare16_v2           0
# define sqlite3_prepare16_v3           0
# define sqlite3_result_error16         0
# define sqlite3_result_text16          0
# define sqlite3_result_text16be        0
# define sqlite3_result_text16le        0
# define sqlite3_value_text16           0
# define sqlite3_value_text16be         0
# define sqlite3_value_text16le         0
419
420
421
422
423
424
425
426







427
428
429
430
431
432
433
420
421
422
423
424
425
426

427
428
429
430
431
432
433
434
435
436
437
438
439
440







-
+
+
+
+
+
+
+







  sqlite3_db_cacheflush,
  /* Version 3.12.0 and later */
  sqlite3_system_errno,
  /* Version 3.14.0 and later */
  sqlite3_trace_v2,
  sqlite3_expanded_sql,
  /* Version 3.18.0 and later */
  sqlite3_set_last_insert_rowid
  sqlite3_set_last_insert_rowid,
  /* Version 3.20.0 and later */
  sqlite3_prepare_v3,
  sqlite3_prepare16_v3,
  sqlite3_bind_pointer,
  sqlite3_result_pointer,
  sqlite3_value_pointer
};

/*
** Attempt to load an SQLite extension library contained in the file
** zFile.  The entry point is zProc.  zProc may be 0 in which case a
** default entry point name (sqlite3_extension_init) is used.  Use
** of the default name is recommended.
Changes to src/main.c.
789
790
791
792
793
794
795


796
797
798
799
800
801
802
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804







+
+







*/
int sqlite3_db_config(sqlite3 *db, int op, ...){
  va_list ap;
  int rc;
  va_start(ap, op);
  switch( op ){
    case SQLITE_DBCONFIG_MAINDBNAME: {
      /* IMP: R-06824-28531 */
      /* IMP: R-36257-52125 */
      db->aDb[0].zDbSName = va_arg(ap,char*);
      rc = SQLITE_OK;
      break;
    }
    case SQLITE_DBCONFIG_LOOKASIDE: {
      void *pBuf = va_arg(ap, void*); /* IMP: R-26835-10964 */
      int sz = va_arg(ap, int);       /* IMP: R-47871-25994 */
1400
1401
1402
1403
1404
1405
1406
1407

1408
1409
1410

1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422

1423
1424
1425
1426
1427


1428



1429
1430
1431
1432



1433
1434
1435
1436
1437
1438
1439
1402
1403
1404
1405
1406
1407
1408

1409
1410
1411

1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423

1424
1425
1426
1427
1428

1429
1430
1431
1432
1433
1434
1435



1436
1437
1438
1439
1440
1441
1442
1443
1444
1445







-
+


-
+











-
+




-
+
+

+
+
+

-
-
-
+
+
+







/*
** Return a static string that describes the kind of error specified in the
** argument.
*/
const char *sqlite3ErrStr(int rc){
  static const char* const aMsg[] = {
    /* SQLITE_OK          */ "not an error",
    /* SQLITE_ERROR       */ "SQL logic error or missing database",
    /* SQLITE_ERROR       */ "SQL logic error",
    /* SQLITE_INTERNAL    */ 0,
    /* SQLITE_PERM        */ "access permission denied",
    /* SQLITE_ABORT       */ "callback requested query abort",
    /* SQLITE_ABORT       */ "query aborted",
    /* SQLITE_BUSY        */ "database is locked",
    /* SQLITE_LOCKED      */ "database table is locked",
    /* SQLITE_NOMEM       */ "out of memory",
    /* SQLITE_READONLY    */ "attempt to write a readonly database",
    /* SQLITE_INTERRUPT   */ "interrupted",
    /* SQLITE_IOERR       */ "disk I/O error",
    /* SQLITE_CORRUPT     */ "database disk image is malformed",
    /* SQLITE_NOTFOUND    */ "unknown operation",
    /* SQLITE_FULL        */ "database or disk is full",
    /* SQLITE_CANTOPEN    */ "unable to open database file",
    /* SQLITE_PROTOCOL    */ "locking protocol",
    /* SQLITE_EMPTY       */ "table contains no data",
    /* SQLITE_EMPTY       */ 0,
    /* SQLITE_SCHEMA      */ "database schema has changed",
    /* SQLITE_TOOBIG      */ "string or blob too big",
    /* SQLITE_CONSTRAINT  */ "constraint failed",
    /* SQLITE_MISMATCH    */ "datatype mismatch",
    /* SQLITE_MISUSE      */ "library routine called out of sequence",
    /* SQLITE_MISUSE      */ "bad parameter or other API misuse",
#ifdef SQLITE_DISABLE_LFS
    /* SQLITE_NOLFS       */ "large file support is disabled",
#else
    /* SQLITE_NOLFS       */ 0,
#endif
    /* SQLITE_AUTH        */ "authorization denied",
    /* SQLITE_FORMAT      */ "auxiliary database format error",
    /* SQLITE_RANGE       */ "bind or column index out of range",
    /* SQLITE_NOTADB      */ "file is encrypted or is not a database",
    /* SQLITE_FORMAT      */ 0,
    /* SQLITE_RANGE       */ "column index out of range",
    /* SQLITE_NOTADB      */ "file is not a database",
  };
  const char *zErr = "unknown error";
  switch( rc ){
    case SQLITE_ABORT_ROLLBACK: {
      zErr = "abort due to ROLLBACK";
      break;
    }
2265
2266
2267
2268
2269
2270
2271
2272

2273
2274
2275
2276


2277
2278
2279
2280
2281
2282
2283
2284
2271
2272
2273
2274
2275
2276
2277

2278




2279
2280

2281
2282
2283
2284
2285
2286
2287







-
+
-
-
-
-
+
+
-







** error.
*/
const void *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', ' ', 
    'b', 'a', 'd', ' ', 'p', 'a', 'r', 'a', 'm', 'e', 't', 'e', 'r', ' ',
    'r', 'o', 'u', 't', 'i', 'n', 'e', ' ', 
    'c', 'a', 'l', 'l', 'e', 'd', ' ', 
    'o', 'u', 't', ' ', 
    'o', 'f', ' ', 
    'o', 'r', ' ', 'o', 't', 'h', 'e', 'r', ' ', 'A', 'P', 'I', ' ',
    'm', 'i', 's', 'u', 's', 'e', 0
    's', 'e', 'q', 'u', 'e', 'n', 'c', 'e', 0
  };

  const void *z;
  if( !db ){
    return (void *)outOfMem;
  }
  if( !sqlite3SafetyCheckSickOrOk(db) ){
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2808
2809
2810
2811
2812
2813
2814




















2815
2816
2817
2818
2819
2820
2821







-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-







#endif
  *ppDb = 0;
#ifndef SQLITE_OMIT_AUTOINIT
  rc = sqlite3_initialize();
  if( rc ) return rc;
#endif

  /* Only allow sensible combinations of bits in the flags argument.  
  ** Throw an error if any non-sense combination is used.  If we
  ** do not block illegal combinations here, it could trigger
  ** assert() statements in deeper layers.  Sensible combinations
  ** are:
  **
  **  1:  SQLITE_OPEN_READONLY
  **  2:  SQLITE_OPEN_READWRITE
  **  6:  SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE
  */
  assert( SQLITE_OPEN_READONLY  == 0x01 );
  assert( SQLITE_OPEN_READWRITE == 0x02 );
  assert( SQLITE_OPEN_CREATE    == 0x04 );
  testcase( (1<<(flags&7))==0x02 ); /* READONLY */
  testcase( (1<<(flags&7))==0x04 ); /* READWRITE */
  testcase( (1<<(flags&7))==0x40 ); /* READWRITE | CREATE */
  if( ((1<<(flags&7)) & 0x46)==0 ){
    return SQLITE_MISUSE_BKPT;  /* IMP: R-65497-44594 */
  }

  if( sqlite3GlobalConfig.bCoreMutex==0 ){
    isThreadsafe = 0;
  }else if( flags & SQLITE_OPEN_NOMUTEX ){
    isThreadsafe = 0;
  }else if( flags & SQLITE_OPEN_FULLMUTEX ){
    isThreadsafe = 1;
  }else{
2946
2947
2948
2949
2950
2951
2952
2953












2954









2955


2956
2957
2958
2959
2960
2961
2962
2929
2930
2931
2932
2933
2934
2935

2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957

2958
2959
2960
2961
2962
2963
2964
2965
2966







-
+
+
+
+
+
+
+
+
+
+
+
+

+
+
+
+
+
+
+
+
+
-
+
+







  }
  /* EVIDENCE-OF: R-08308-17224 The default collating function for all
  ** strings is BINARY. 
  */
  db->pDfltColl = sqlite3FindCollSeq(db, SQLITE_UTF8, sqlite3StrBINARY, 0);
  assert( db->pDfltColl!=0 );

  /* Parse the filename/URI argument. */
  /* Parse the filename/URI argument
  **
  ** Only allow sensible combinations of bits in the flags argument.  
  ** Throw an error if any non-sense combination is used.  If we
  ** do not block illegal combinations here, it could trigger
  ** assert() statements in deeper layers.  Sensible combinations
  ** are:
  **
  **  1:  SQLITE_OPEN_READONLY
  **  2:  SQLITE_OPEN_READWRITE
  **  6:  SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE
  */
  db->openFlags = flags;
  assert( SQLITE_OPEN_READONLY  == 0x01 );
  assert( SQLITE_OPEN_READWRITE == 0x02 );
  assert( SQLITE_OPEN_CREATE    == 0x04 );
  testcase( (1<<(flags&7))==0x02 ); /* READONLY */
  testcase( (1<<(flags&7))==0x04 ); /* READWRITE */
  testcase( (1<<(flags&7))==0x40 ); /* READWRITE | CREATE */
  if( ((1<<(flags&7)) & 0x46)==0 ){
    rc = SQLITE_MISUSE_BKPT;  /* IMP: R-65497-44594 */
  }else{
  rc = sqlite3ParseUri(zVfs, zFilename, &flags, &db->pVfs, &zOpen, &zErrMsg);
    rc = sqlite3ParseUri(zVfs, zFilename, &flags, &db->pVfs, &zOpen, &zErrMsg);
  }
  if( rc!=SQLITE_OK ){
    if( rc==SQLITE_NOMEM ) sqlite3OomFault(db);
    sqlite3ErrorWithMsg(db, rc, zErrMsg ? "%s" : 0, zErrMsg);
    sqlite3_free(zErrMsg);
    goto opendb_out;
  }

Changes to src/parse.y.
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897


898
899
900
901
902
903
904
905
906
907
908
909
872
873
874
875
876
877
878

879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894


895
896
897
898
899
900

901
902
903
904
905
906
907







-
















-
-
+
+




-







    pOut->zEnd = &t.z[t.n];
  }
}

expr(A) ::= term(A).
expr(A) ::= LP(B) expr(X) RP(E).
            {spanSet(&A,&B,&E); /*A-overwrites-B*/  A.pExpr = X.pExpr;}
term(A) ::= NULL(X).        {spanExpr(&A,pParse,@X,X);/*A-overwrites-X*/}
expr(A) ::= id(X).          {spanExpr(&A,pParse,TK_ID,X); /*A-overwrites-X*/}
expr(A) ::= JOIN_KW(X).     {spanExpr(&A,pParse,TK_ID,X); /*A-overwrites-X*/}
expr(A) ::= nm(X) DOT nm(Y). {
  Expr *temp1 = sqlite3ExprAlloc(pParse->db, TK_ID, &X, 1);
  Expr *temp2 = sqlite3ExprAlloc(pParse->db, TK_ID, &Y, 1);
  spanSet(&A,&X,&Y); /*A-overwrites-X*/
  A.pExpr = sqlite3PExpr(pParse, TK_DOT, temp1, temp2);
}
expr(A) ::= nm(X) DOT nm(Y) DOT nm(Z). {
  Expr *temp1 = sqlite3ExprAlloc(pParse->db, TK_ID, &X, 1);
  Expr *temp2 = sqlite3ExprAlloc(pParse->db, TK_ID, &Y, 1);
  Expr *temp3 = sqlite3ExprAlloc(pParse->db, TK_ID, &Z, 1);
  Expr *temp4 = sqlite3PExpr(pParse, TK_DOT, temp2, temp3);
  spanSet(&A,&X,&Z); /*A-overwrites-X*/
  A.pExpr = sqlite3PExpr(pParse, TK_DOT, temp1, temp4);
}
term(A) ::= FLOAT|BLOB(X). {spanExpr(&A,pParse,@X,X);/*A-overwrites-X*/}
term(A) ::= STRING(X).     {spanExpr(&A,pParse,@X,X);/*A-overwrites-X*/}
term(A) ::= NULL|FLOAT|BLOB(X). {spanExpr(&A,pParse,@X,X); /*A-overwrites-X*/}
term(A) ::= STRING(X).          {spanExpr(&A,pParse,@X,X); /*A-overwrites-X*/}
term(A) ::= INTEGER(X). {
  A.pExpr = sqlite3ExprAlloc(pParse->db, TK_INTEGER, &X, 1);
  A.zStart = X.z;
  A.zEnd = X.z + X.n;
  if( A.pExpr ) A.pExpr->flags |= EP_Leaf|EP_Resolved;
}
expr(A) ::= VARIABLE(X).     {
  if( !(X.z[0]=='#' && sqlite3Isdigit(X.z[1])) ){
    u32 n = X.n;
    spanExpr(&A, pParse, TK_VARIABLE, X);
    sqlite3ExprAssignVarNumber(pParse, A.pExpr, n);
  }else{
Changes to src/pragma.c.
511
512
513
514
515
516
517
518

519
520
521
522

523
524
525
526
527
528



529


530
531
532
533
534
535
536
511
512
513
514
515
516
517

518
519
520
521

522
523
524
525
526
527
528
529
530
531

532
533
534
535
536
537
538
539
540







-
+



-
+






+
+
+
-
+
+







      }
    }
    break;
  }

  /*
  **  PRAGMA [schema.]secure_delete
  **  PRAGMA [schema.]secure_delete=ON/OFF
  **  PRAGMA [schema.]secure_delete=ON/OFF/FAST
  **
  ** The first form reports the current setting for the
  ** secure_delete flag.  The second form changes the secure_delete
  ** flag setting and reports thenew value.
  ** flag setting and reports the new value.
  */
  case PragTyp_SECURE_DELETE: {
    Btree *pBt = pDb->pBt;
    int b = -1;
    assert( pBt!=0 );
    if( zRight ){
      if( sqlite3_stricmp(zRight, "fast")==0 ){
        b = 2;
      }else{
      b = sqlite3GetBoolean(zRight, 0);
        b = sqlite3GetBoolean(zRight, 0);
      }
    }
    if( pId2->n==0 && b>=0 ){
      int ii;
      for(ii=0; ii<db->nDb; ii++){
        sqlite3BtreeSecureDelete(db->aDb[ii].pBt, b);
      }
    }
1243
1244
1245
1246
1247
1248
1249












































1250
1251
1252
1253
1254
1255
1256
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304







+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+







    pParse->nMem = 2;
    for(p=sqliteHashFirst(&db->aCollSeq); p; p=sqliteHashNext(p)){
      CollSeq *pColl = (CollSeq *)sqliteHashData(p);
      sqlite3VdbeMultiLoad(v, 1, "is", i++, pColl->zName);
    }
  }
  break;

#ifdef SQLITE_INTROSPECTION_PRAGMAS
  case PragTyp_FUNCTION_LIST: {
    int i;
    HashElem *j;
    FuncDef *p;
    pParse->nMem = 2;
    for(i=0; i<SQLITE_FUNC_HASH_SZ; i++){
      for(p=sqlite3BuiltinFunctions.a[i]; p; p=p->u.pHash ){
        sqlite3VdbeMultiLoad(v, 1, "si", p->zName, 1);
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 2);
      }
    }
    for(j=sqliteHashFirst(&db->aFunc); j; j=sqliteHashNext(j)){
      p = (FuncDef*)sqliteHashData(j);
      sqlite3VdbeMultiLoad(v, 1, "si", p->zName, 0);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 2);
    }
  }
  break;

#ifndef SQLITE_OMIT_VIRTUALTABLE
  case PragTyp_MODULE_LIST: {
    HashElem *j;
    pParse->nMem = 1;
    for(j=sqliteHashFirst(&db->aModule); j; j=sqliteHashNext(j)){
      Module *pMod = (Module*)sqliteHashData(j);
      sqlite3VdbeMultiLoad(v, 1, "s", pMod->zName);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
    }
  }
  break;
#endif /* SQLITE_OMIT_VIRTUALTABLE */

  case PragTyp_PRAGMA_LIST: {
    int i;
    for(i=0; i<ArraySize(aPragmaName); i++){
      sqlite3VdbeMultiLoad(v, 1, "s", aPragmaName[i].zName);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
    }
  }
  break;
#endif /* SQLITE_INTROSPECTION_PRAGMAS */

#endif /* SQLITE_OMIT_SCHEMA_PRAGMAS */

#ifndef SQLITE_OMIT_FOREIGN_KEY
  case PragTyp_FOREIGN_KEY_LIST: if( zRight ){
    FKey *pFK;
    Table *pTab;
    pTab = sqlite3FindTable(db, zRight, zDb);
1503
1504
1505
1506
1507
1508
1509

1510
1511
1512
1513
1514
1515
1516
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565







+







          aRoot[cnt++] = pIdx->tnum;
        }
      }
      aRoot[cnt] = 0;

      /* Make sure sufficient number of registers have been allocated */
      pParse->nMem = MAX( pParse->nMem, 8+mxIdx );
      sqlite3ClearTempRegCache(pParse);

      /* 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].zDbSName),
1917
1918
1919
1920
1921
1922
1923
1924


1925
1926
1927
1928
1929
1930
1931
1966
1967
1968
1969
1970
1971
1972

1973
1974
1975
1976
1977
1978
1979
1980
1981







-
+
+







  **              information from the current session in the
  **              database file so that it will be available to "optimize"
  **              pragmas run by future database connections.
  **
  **    0x0008    (Not yet implemented) Create indexes that might have
  **              been helpful to recent queries
  **
  ** The default MASK is and always shall be 0xfffe.  0xfffe means perform all    ** of the optimizations listed above except Debug Mode, including new
  ** The default MASK is and always shall be 0xfffe.  0xfffe means perform all
  ** of the optimizations listed above except Debug Mode, including new
  ** optimizations that have not yet been invented.  If new optimizations are
  ** ever added that should be off by default, those off-by-default 
  ** optimizations will have bitmasks of 0x10000 or larger.
  **
  ** DETERMINATION OF WHEN TO RUN ANALYZE
  **
  ** In the current implementation, a table is analyzed if only if all of
2344
2345
2346
2347
2348
2349
2350

2351


2352
2353
2354




2355
2356
2357
2358
2359
2360
2361
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404



2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415







+

+
+
-
-
-
+
+
+
+







  char *zSql;

  UNUSED_PARAMETER(idxNum);
  UNUSED_PARAMETER(idxStr);
  pragmaVtabCursorClear(pCsr);
  j = (pTab->pName->mPragFlg & PragFlg_Result1)!=0 ? 0 : 1;
  for(i=0; i<argc; i++, j++){
    const char *zText = (const char*)sqlite3_value_text(argv[i]);
    assert( j<ArraySize(pCsr->azArg) );
    assert( pCsr->azArg[j]==0 );
    if( zText ){
    pCsr->azArg[j] = sqlite3_mprintf("%s", sqlite3_value_text(argv[i]));
    if( pCsr->azArg[j]==0 ){
      return SQLITE_NOMEM;
      pCsr->azArg[j] = sqlite3_mprintf("%s", zText);
      if( pCsr->azArg[j]==0 ){
        return SQLITE_NOMEM;
      }
    }
  }
  sqlite3StrAccumInit(&acc, 0, 0, 0, pTab->db->aLimit[SQLITE_LIMIT_SQL_LENGTH]);
  sqlite3StrAccumAppendAll(&acc, "PRAGMA ");
  if( pCsr->azArg[1] ){
    sqlite3XPrintf(&acc, "%Q.", pCsr->azArg[1]);
  }
Changes to src/pragma.h.
17
18
19
20
21
22
23

24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52































53
54
55
56
57
58
59
17
18
19
20
21
22
23
24





























25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62







+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+







#define PragTyp_DATA_STORE_DIRECTORY           9
#define PragTyp_DATABASE_LIST                 10
#define PragTyp_DEFAULT_CACHE_SIZE            11
#define PragTyp_ENCODING                      12
#define PragTyp_FOREIGN_KEY_CHECK             13
#define PragTyp_FOREIGN_KEY_LIST              14
#define PragTyp_FREELIST_FORMAT               15
#define PragTyp_FUNCTION_LIST                 16
#define PragTyp_INCREMENTAL_VACUUM            16
#define PragTyp_INDEX_INFO                    17
#define PragTyp_INDEX_LIST                    18
#define PragTyp_INTEGRITY_CHECK               19
#define PragTyp_JOURNAL_MODE                  20
#define PragTyp_JOURNAL_SIZE_LIMIT            21
#define PragTyp_LOCK_PROXY_FILE               22
#define PragTyp_LOCKING_MODE                  23
#define PragTyp_PAGE_COUNT                    24
#define PragTyp_MMAP_SIZE                     25
#define PragTyp_OPTIMIZE                      26
#define PragTyp_PAGE_SIZE                     27
#define PragTyp_SECURE_DELETE                 28
#define PragTyp_SHRINK_MEMORY                 29
#define PragTyp_SOFT_HEAP_LIMIT               30
#define PragTyp_SYNCHRONOUS                   31
#define PragTyp_TABLE_INFO                    32
#define PragTyp_TEMP_STORE                    33
#define PragTyp_TEMP_STORE_DIRECTORY          34
#define PragTyp_THREADS                       35
#define PragTyp_WAL_AUTOCHECKPOINT            36
#define PragTyp_WAL_CHECKPOINT                37
#define PragTyp_ACTIVATE_EXTENSIONS           38
#define PragTyp_HEXKEY                        39
#define PragTyp_KEY                           40
#define PragTyp_REKEY                         41
#define PragTyp_LOCK_STATUS                   42
#define PragTyp_PARSER_TRACE                  43
#define PragTyp_STATS                         44
#define PragTyp_INCREMENTAL_VACUUM            17
#define PragTyp_INDEX_INFO                    18
#define PragTyp_INDEX_LIST                    19
#define PragTyp_INTEGRITY_CHECK               20
#define PragTyp_JOURNAL_MODE                  21
#define PragTyp_JOURNAL_SIZE_LIMIT            22
#define PragTyp_LOCK_PROXY_FILE               23
#define PragTyp_LOCKING_MODE                  24
#define PragTyp_PAGE_COUNT                    25
#define PragTyp_MMAP_SIZE                     26
#define PragTyp_MODULE_LIST                   27
#define PragTyp_OPTIMIZE                      28
#define PragTyp_PAGE_SIZE                     29
#define PragTyp_PRAGMA_LIST                   30
#define PragTyp_SECURE_DELETE                 31
#define PragTyp_SHRINK_MEMORY                 32
#define PragTyp_SOFT_HEAP_LIMIT               33
#define PragTyp_SYNCHRONOUS                   34
#define PragTyp_TABLE_INFO                    35
#define PragTyp_TEMP_STORE                    36
#define PragTyp_TEMP_STORE_DIRECTORY          37
#define PragTyp_THREADS                       38
#define PragTyp_WAL_AUTOCHECKPOINT            39
#define PragTyp_WAL_CHECKPOINT                40
#define PragTyp_ACTIVATE_EXTENSIONS           41
#define PragTyp_HEXKEY                        42
#define PragTyp_KEY                           43
#define PragTyp_REKEY                         44
#define PragTyp_LOCK_STATUS                   45
#define PragTyp_PARSER_TRACE                  46
#define PragTyp_STATS                         47

/* Property flags associated with various pragma. */
#define PragFlg_NeedSchema 0x01 /* Force schema load before running */
#define PragFlg_NoColumns  0x02 /* OP_ResultRow called with zero columns */
#define PragFlg_NoColumns1 0x04 /* zero columns if RHS argument is present */
#define PragFlg_ReadOnly   0x08 /* Read-only HEADER_VALUE */
#define PragFlg_Result0    0x10 /* Acts as query when no argument */
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117























118
119
120
121
122
123
124
94
95
96
97
98
99
100




















101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130







-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+







  /*  22 */ "name",       
  /*  23 */ "unique",     
  /*  24 */ "origin",     
  /*  25 */ "partial",    
  /*  26 */ "seq",         /* Used by: database_list */
  /*  27 */ "name",       
  /*  28 */ "file",       
  /*  29 */ "seq",         /* Used by: collation_list */
  /*  30 */ "name",       
  /*  31 */ "id",          /* Used by: foreign_key_list */
  /*  32 */ "seq",        
  /*  33 */ "table",      
  /*  34 */ "from",       
  /*  35 */ "to",         
  /*  36 */ "on_update",  
  /*  37 */ "on_delete",  
  /*  38 */ "match",      
  /*  39 */ "table",       /* Used by: foreign_key_check */
  /*  40 */ "rowid",      
  /*  41 */ "parent",     
  /*  42 */ "fkid",       
  /*  43 */ "busy",        /* Used by: wal_checkpoint */
  /*  44 */ "log",        
  /*  45 */ "checkpointed",
  /*  46 */ "timeout",     /* Used by: busy_timeout */
  /*  47 */ "database",    /* Used by: lock_status */
  /*  48 */ "status",     
  /*  29 */ "name",        /* Used by: function_list */
  /*  30 */ "builtin",    
  /*  31 */ "name",        /* Used by: module_list pragma_list */
  /*  32 */ "seq",         /* Used by: collation_list */
  /*  33 */ "name",       
  /*  34 */ "id",          /* Used by: foreign_key_list */
  /*  35 */ "seq",        
  /*  36 */ "table",      
  /*  37 */ "from",       
  /*  38 */ "to",         
  /*  39 */ "on_update",  
  /*  40 */ "on_delete",  
  /*  41 */ "match",      
  /*  42 */ "table",       /* Used by: foreign_key_check */
  /*  43 */ "rowid",      
  /*  44 */ "parent",     
  /*  45 */ "fkid",       
  /*  46 */ "busy",        /* Used by: wal_checkpoint */
  /*  47 */ "log",        
  /*  48 */ "checkpointed",
  /*  49 */ "timeout",     /* Used by: busy_timeout */
  /*  50 */ "database",    /* Used by: lock_status */
  /*  51 */ "status",     
};

/* Definitions of all built-in pragmas */
typedef struct PragmaName {
  const char *const zName; /* Name of pragma */
  u8 ePragTyp;             /* PragTyp_XXX value */
  u8 mPragFlg;             /* Zero or more PragFlg_XXX values */
156
157
158
159
160
161
162
163

164
165
166
167
168
169
170
162
163
164
165
166
167
168

169
170
171
172
173
174
175
176







-
+







  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_AutoIndex },
#endif
#endif
 {/* zName:     */ "busy_timeout",
  /* ePragTyp:  */ PragTyp_BUSY_TIMEOUT,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 46, 1,
  /* ColNames:  */ 49, 1,
  /* iArg:      */ 0 },
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
 {/* zName:     */ "cache_size",
  /* ePragTyp:  */ PragTyp_CACHE_SIZE,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
193
194
195
196
197
198
199
200

201
202
203
204
205
206
207
199
200
201
202
203
204
205

206
207
208
209
210
211
212
213







-
+







  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_CkptFullFSync },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
 {/* zName:     */ "collation_list",
  /* ePragTyp:  */ PragTyp_COLLATION_LIST,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 29, 2,
  /* ColNames:  */ 32, 2,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_COMPILEOPTION_DIAGS)
 {/* zName:     */ "compile_options",
  /* ePragTyp:  */ PragTyp_COMPILE_OPTIONS,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 0, 0,
265
266
267
268
269
270
271
272

273
274
275
276
277
278
279

280
281
282
283
284
285
286
271
272
273
274
275
276
277

278
279
280
281
282
283
284

285
286
287
288
289
290
291
292







-
+






-
+







  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
 {/* zName:     */ "foreign_key_check",
  /* ePragTyp:  */ PragTyp_FOREIGN_KEY_CHECK,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0,
  /* ColNames:  */ 39, 4,
  /* ColNames:  */ 42, 4,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FOREIGN_KEY)
 {/* zName:     */ "foreign_key_list",
  /* ePragTyp:  */ PragTyp_FOREIGN_KEY_LIST,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
  /* ColNames:  */ 31, 8,
  /* ColNames:  */ 34, 8,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
 {/* zName:     */ "foreign_keys",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
309
310
311
312
313
314
315









316
317
318
319
320
321
322
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337







+
+
+
+
+
+
+
+
+







  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_FullColNames },
 {/* zName:     */ "fullfsync",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_FullFSync },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
#if defined(SQLITE_INTROSPECTION_PRAGMAS)
 {/* zName:     */ "function_list",
  /* ePragTyp:  */ PragTyp_FUNCTION_LIST,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 29, 2,
  /* iArg:      */ 0 },
#endif
#endif
#if defined(SQLITE_HAS_CODEC)
 {/* zName:     */ "hexkey",
  /* ePragTyp:  */ PragTyp_HEXKEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
399
400
401
402
403
404
405
406

407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424











425
426
427
428
429
430
431
414
415
416
417
418
419
420

421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457







-
+


















+
+
+
+
+
+
+
+
+
+
+







  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
 {/* zName:     */ "lock_status",
  /* ePragTyp:  */ PragTyp_LOCK_STATUS,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 47, 2,
  /* ColNames:  */ 50, 2,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
 {/* zName:     */ "locking_mode",
  /* ePragTyp:  */ PragTyp_LOCKING_MODE,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_SchemaReq,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "max_page_count",
  /* ePragTyp:  */ PragTyp_PAGE_COUNT,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "mmap_size",
  /* ePragTyp:  */ PragTyp_MMAP_SIZE,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
#if !defined(SQLITE_OMIT_VIRTUALTABLE)
#if defined(SQLITE_INTROSPECTION_PRAGMAS)
 {/* zName:     */ "module_list",
  /* ePragTyp:  */ PragTyp_MODULE_LIST,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 31, 1,
  /* iArg:      */ 0 },
#endif
#endif
#endif
 {/* zName:     */ "optimize",
  /* ePragTyp:  */ PragTyp_OPTIMIZE,
  /* ePragFlg:  */ PragFlg_Result1|PragFlg_NeedSchema,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
442
443
444
445
446
447
448







449
450
451
452
453
454
455
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488







+
+
+
+
+
+
+







#endif
#if defined(SQLITE_DEBUG) && !defined(SQLITE_OMIT_PARSER_TRACE)
 {/* zName:     */ "parser_trace",
  /* ePragTyp:  */ PragTyp_PARSER_TRACE,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if defined(SQLITE_INTROSPECTION_PRAGMAS)
 {/* zName:     */ "pragma_list",
  /* ePragTyp:  */ PragTyp_PRAGMA_LIST,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 31, 1,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "query_only",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_QueryOnly },
606
607
608
609
610
611
612
613

614
615
616
617
618
619
620
621
622
623
624

639
640
641
642
643
644
645

646
647
648
649
650
651
652
653
654
655
656

657







-
+










-
+
  /* ePragTyp:  */ PragTyp_WAL_AUTOCHECKPOINT,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "wal_checkpoint",
  /* ePragTyp:  */ PragTyp_WAL_CHECKPOINT,
  /* ePragFlg:  */ PragFlg_NeedSchema,
  /* ColNames:  */ 43, 3,
  /* ColNames:  */ 46, 3,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "writable_schema",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_WriteSchema },
#endif
};
/* Number of pragmas: 60 on by default, 75 total. */
/* Number of pragmas: 60 on by default, 78 total. */
Changes to src/prepare.c.
761
762
763
764
765
766
767





768
769
770

771
772
773
774
775
776
777
778
779
780
781







782
783
784
785

786
787
788
789
790
791
792
761
762
763
764
765
766
767
768
769
770
771
772
773
774

775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796

797
798
799
800
801
802
803
804







+
+
+
+
+


-
+











+
+
+
+
+
+
+



-
+







  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;
  /* EVIDENCE-OF: R-37923-12173 The sqlite3_prepare_v2() interface works
  ** exactly the same as sqlite3_prepare_v3() with a zero prepFlags
  ** parameter.
  **
  ** Proof in that the 5th parameter to sqlite3LockAndPrepare is 0 */
  rc = sqlite3LockAndPrepare(db,zSql,nBytes,SQLITE_PREPARE_SAVESQL,0,
                             ppStmt,pzTail);
  assert( rc==SQLITE_OK || ppStmt==0 || *ppStmt==0 );  /* VERIFY: F13021 */
  assert( rc==SQLITE_OK || ppStmt==0 || *ppStmt==0 );
  return rc;
}
int sqlite3_prepare_v3(
  sqlite3 *db,              /* Database handle. */
  const char *zSql,         /* UTF-8 encoded SQL statement. */
  int nBytes,               /* Length of zSql in bytes. */
  unsigned int prepFlags,   /* Zero or more SQLITE_PREPARE_* flags */
  sqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
  const char **pzTail       /* OUT: End of parsed string */
){
  int rc;
  /* EVIDENCE-OF: R-56861-42673 sqlite3_prepare_v3() differs from
  ** sqlite3_prepare_v2() only in having the extra prepFlags parameter,
  ** which is a bit array consisting of zero or more of the
  ** SQLITE_PREPARE_* flags.
  **
  ** Proof by comparison to the implementation of sqlite3_prepare_v2()
  ** directly above. */
  rc = sqlite3LockAndPrepare(db,zSql,nBytes,
                 SQLITE_PREPARE_SAVESQL|(prepFlags&SQLITE_PREPARE_MASK),
                 0,ppStmt,pzTail);
  assert( rc==SQLITE_OK || ppStmt==0 || *ppStmt==0 );  /* VERIFY: F13021 */
  assert( rc==SQLITE_OK || ppStmt==0 || *ppStmt==0 );
  return rc;
}


#ifndef SQLITE_OMIT_UTF16
/*
** Compile the UTF-16 encoded SQL statement zSql into a statement handle.
Changes to src/resolve.c.
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
513
514
515
516
517
518
519

520
521
522
523
524
525
526







-







      p->iColumn = -1;
    }else{
      p->iColumn = (ynVar)iCol;
      testcase( iCol==BMS );
      testcase( iCol==BMS-1 );
      pItem->colUsed |= ((Bitmask)1)<<(iCol>=BMS ? BMS-1 : iCol);
    }
    ExprSetProperty(p, EP_Resolved);
  }
  return p;
}

/*
** Report an error that an expression is not valid for some set of
** pNC->ncFlags values determined by validMask.
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
572
573
574
575
576
577
578


579
580
581
582
583
584
585







-
-







  Parse *pParse;

  pNC = pWalker->u.pNC;
  assert( pNC!=0 );
  pParse = pNC->pParse;
  assert( pParse==pWalker->pParse );

  if( ExprHasProperty(pExpr, EP_Resolved) ) return WRC_Prune;
  ExprSetProperty(pExpr, EP_Resolved);
#ifndef NDEBUG
  if( pNC->pSrcList && pNC->pSrcList->nAlloc>0 ){
    SrcList *pSrcList = pNC->pSrcList;
    int i;
    for(i=0; i<pNC->pSrcList->nSrc; i++){
      assert( pSrcList->a[i].iCursor>=0 && pSrcList->a[i].iCursor<pParse->nTab);
    }
Changes to src/select.c.
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573




























1574
1575
1576
1577

1578
1579
1580
1581
1582
1583
1584


1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598


1599
1600
1601
1602
1603



1604

1605
1606

1607

1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622

1623
1624
1625
1626
1627
1628
1629
1564
1565
1566
1567
1568
1569
1570



1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601

1602
1603
1604
1605
1606
1607
1608

1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622


1623
1624
1625
1626



1627
1628
1629
1630
1631
1632
1633
1634

1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646




1647
1648
1649
1650
1651
1652
1653
1654







-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+



-
+






-
+
+












-
-
+
+


-
-
-
+
+
+

+


+
-
+











-
-
-
-
+







    if( pList->a[j].iCursor==iCursor ) return pList->a[j].pTab;
  }
  return 0;
}


/*
** Generate code that will tell the VDBE the names of columns
** in the result set.  This information is used to provide the
** azCol[] values in the callback.
** Compute the column names for a SELECT statement.
**
** The only guarantee that SQLite makes about column names is that if the
** column has an AS clause assigning it a name, that will be the name used.
** That is the only documented guarantee.  However, countless applications
** developed over the years have made baseless assumptions about column names
** and will break if those assumptions changes.  Hence, use extreme caution
** when modifying this routine to avoid breaking legacy.
**
** See Also: sqlite3ColumnsFromExprList()
**
** The PRAGMA short_column_names and PRAGMA full_column_names settings are
** deprecated.  The default setting is short=ON, full=OFF.  99.9% of all
** applications should operate this way.  Nevertheless, we need to support the
** other modes for legacy:
**
**    short=OFF, full=OFF:      Column name is the text of the expression has it
**                              originally appears in the SELECT statement.  In
**                              other words, the zSpan of the result expression.
**
**    short=ON, full=OFF:       (This is the default setting).  If the result
**                              refers directly to a table column, then the result
**                              column name is just the table column name: COLUMN. 
**                              Otherwise use zSpan.
**
**    full=ON, short=ANY:       If the result refers directly to a table column,
**                              then the result column name with the table name
**                              prefix, ex: TABLE.COLUMN.  Otherwise use zSpan.
*/
static void generateColumnNames(
  Parse *pParse,      /* Parser context */
  SrcList *pTabList,  /* List of tables */
  SrcList *pTabList,  /* The FROM clause of the SELECT */
  ExprList *pEList    /* Expressions defining the result set */
){
  Vdbe *v = pParse->pVdbe;
  int i;
  Table *pTab;
  sqlite3 *db = pParse->db;
  int fullNames, shortNames;
  int fullName;      /* TABLE.COLUMN if no AS clause and is a direct table ref */
  int srcName;       /* COLUMN or TABLE.COLUMN if no AS clause and is direct */

#ifndef SQLITE_OMIT_EXPLAIN
  /* If this is an EXPLAIN, skip this step */
  if( pParse->explain ){
    return;
  }
#endif

  if( pParse->colNamesSet || db->mallocFailed ) return;
  assert( v!=0 );
  assert( pTabList!=0 );
  pParse->colNamesSet = 1;
  fullNames = (db->flags & SQLITE_FullColNames)!=0;
  shortNames = (db->flags & SQLITE_ShortColNames)!=0;
  fullName = (db->flags & SQLITE_FullColNames)!=0;
  srcName = (db->flags & SQLITE_ShortColNames)!=0 || fullName;
  sqlite3VdbeSetNumCols(v, pEList->nExpr);
  for(i=0; i<pEList->nExpr; i++){
    Expr *p;
    p = pEList->a[i].pExpr;
    if( NEVER(p==0) ) continue;
    Expr *p = pEList->a[i].pExpr;

    assert( p!=0 );
    if( pEList->a[i].zName ){
      /* An AS clause always takes first priority */
      char *zName = pEList->a[i].zName;
      sqlite3VdbeSetColName(v, i, COLNAME_NAME, zName, SQLITE_TRANSIENT);
    }else if( srcName
    }else if( (p->op==TK_COLUMN || p->op==TK_AGG_COLUMN)
           && (p->op==TK_COLUMN || p->op==TK_AGG_COLUMN)
           && (pTab = tableWithCursor(pTabList, p->iTable))!=0
    ){
      char *zCol;
      int iCol = p->iColumn;
      if( iCol<0 ) iCol = pTab->iPKey;
      assert( iCol==-1 || (iCol>=0 && iCol<pTab->nCol) );
      if( iCol<0 ){
        zCol = "rowid";
      }else{
        zCol = pTab->aCol[iCol].zName;
      }
      if( !shortNames && !fullNames ){
        sqlite3VdbeSetColName(v, i, COLNAME_NAME, 
            sqlite3DbStrDup(db, pEList->a[i].zSpan), SQLITE_DYNAMIC);
      }else if( fullNames ){
      if( fullName ){
        char *zName = 0;
        zName = sqlite3MPrintf(db, "%s.%s", pTab->zName, zCol);
        sqlite3VdbeSetColName(v, i, COLNAME_NAME, zName, SQLITE_DYNAMIC);
      }else{
        sqlite3VdbeSetColName(v, i, COLNAME_NAME, zCol, SQLITE_TRANSIENT);
      }
    }else{
1643
1644
1645
1646
1647
1648
1649









1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687

1688
1689
1690
1691
1692
1693
1694
1695
1696

1697
1698
1699
1700
1701
1702
1703
1704
1705
1706



1707


1708
1709
1710
1711
1712
1713
1714
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695

1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715

1716
1717
1718

1719

1720
1721
1722
1723
1724
1725
1726

1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740

1741
1742
1743
1744
1745
1746
1747
1748
1749







+
+
+
+
+
+
+
+
+












-




















-



-
+
-







-
+










+
+
+
-
+
+







** All column names will be unique.
**
** Only the column names are computed.  Column.zType, Column.zColl,
** and other fields of Column are zeroed.
**
** Return SQLITE_OK on success.  If a memory allocation error occurs,
** store NULL in *paCol and 0 in *pnCol and return SQLITE_NOMEM.
**
** The only guarantee that SQLite makes about column names is that if the
** column has an AS clause assigning it a name, that will be the name used.
** That is the only documented guarantee.  However, countless applications
** developed over the years have made baseless assumptions about column names
** and will break if those assumptions changes.  Hence, use extreme caution
** when modifying this routine to avoid breaking legacy.
**
** See Also: generateColumnNames()
*/
int sqlite3ColumnsFromExprList(
  Parse *pParse,          /* Parsing context */
  ExprList *pEList,       /* Expr list from which to derive column names */
  i16 *pnCol,             /* Write the number of columns here */
  Column **paCol          /* Write the new column list here */
){
  sqlite3 *db = pParse->db;   /* Database connection */
  int i, j;                   /* Loop counters */
  u32 cnt;                    /* Index added to make the name unique */
  Column *aCol, *pCol;        /* For looping over result columns */
  int nCol;                   /* Number of columns in the result set */
  Expr *p;                    /* Expression for a single result column */
  char *zName;                /* Column name */
  int nName;                  /* Size of name in zName[] */
  Hash ht;                    /* Hash table of column names */

  sqlite3HashInit(&ht);
  if( pEList ){
    nCol = pEList->nExpr;
    aCol = sqlite3DbMallocZero(db, sizeof(aCol[0])*nCol);
    testcase( aCol==0 );
  }else{
    nCol = 0;
    aCol = 0;
  }
  assert( nCol==(i16)nCol );
  *pnCol = nCol;
  *paCol = aCol;

  for(i=0, pCol=aCol; i<nCol && !db->mallocFailed; i++, pCol++){
    /* Get an appropriate name for the column
    */
    p = sqlite3ExprSkipCollate(pEList->a[i].pExpr);
    if( (zName = pEList->a[i].zName)!=0 ){
      /* If the column contains an "AS <name>" phrase, use <name> as the name */
    }else{
      Expr *pColExpr = p;  /* The expression that is the result column name */
      Expr *pColExpr = sqlite3ExprSkipCollate(pEList->a[i].pExpr);
      Table *pTab;         /* Table associated with this expression */
      while( pColExpr->op==TK_DOT ){
        pColExpr = pColExpr->pRight;
        assert( pColExpr!=0 );
      }
      if( pColExpr->op==TK_COLUMN && pColExpr->pTab!=0 ){
        /* For columns use the column name name */
        int iCol = pColExpr->iColumn;
        pTab = pColExpr->pTab;
        Table *pTab = pColExpr->pTab;
        if( iCol<0 ) iCol = pTab->iPKey;
        zName = iCol>=0 ? pTab->aCol[iCol].zName : "rowid";
      }else if( pColExpr->op==TK_ID ){
        assert( !ExprHasProperty(pColExpr, EP_IntValue) );
        zName = pColExpr->u.zToken;
      }else{
        /* Use the original text of the column expression as its name */
        zName = pEList->a[i].zSpan;
      }
    }
    if( zName ){
      zName = sqlite3DbStrDup(db, zName);
    }else{
    zName = sqlite3MPrintf(db, "%s", zName);
      zName = sqlite3MPrintf(db,"column%d",i+1);
    }

    /* Make sure the column name is unique.  If the name is not unique,
    ** append an integer to the name so that it becomes unique.
    */
    cnt = 0;
    while( zName && sqlite3HashFind(&ht, zName)!=0 ){
      nName = sqlite3Strlen30(zName);
3300
3301
3302
3303
3304
3305
3306
3307
3308



3309
3310
3311
3312
3313
3314
3315
3335
3336
3337
3338
3339
3340
3341


3342
3343
3344
3345
3346
3347
3348
3349
3350
3351







-
-
+
+
+







**
**   (2)  The subquery is not an aggregate or (2a) the outer query is not a join
**        and (2b) the outer query does not use subqueries other than the one
**        FROM-clause subquery that is a candidate for flattening.  (2b is
**        due to ticket [2f7170d73bf9abf80] from 2015-02-09.)
**
**   (3)  The subquery is not the right operand of a LEFT JOIN
**        or the subquery is not itself a join and the outer query is not
**        an aggregate.
**        or (a) the subquery is not itself a join and (b) the FROM clause
**        of the subquery does not contain a virtual table and (c) the 
**        outer query is not an aggregate.
**
**   (4)  The subquery is not DISTINCT.
**
**  (**)  At one point restrictions (4) and (5) defined a subset of DISTINCT
**        sub-queries that were excluded from this optimization. Restriction 
**        (4) has since been expanded to exclude all DISTINCT subqueries.
**
3506
3507
3508
3509
3510
3511
3512
3513

3514
3515
3516
3517
3518
3519
3520
3542
3543
3544
3545
3546
3547
3548

3549
3550
3551
3552
3553
3554
3555
3556







-
+







  ** are processed - there is no mechanism to determine if the LEFT JOIN
  ** table should be all-NULL.
  **
  ** See also tickets #306, #350, and #3300.
  */
  if( (pSubitem->fg.jointype & JT_OUTER)!=0 ){
    isLeftJoin = 1;
    if( pSubSrc->nSrc>1 || isAgg ){
    if( pSubSrc->nSrc>1 || isAgg || IsVirtual(pSubSrc->a[0].pTab) ){
      return 0; /* Restriction (3) */
    }
  }
#ifdef SQLITE_EXTRA_IFNULLROW
  else if( iFrom>0 && !isAgg ){
    /* Setting isLeftJoin to -1 causes OP_IfNullRow opcodes to be generated for
    ** every reference to any result column from subquery in a join, even though
Changes to src/shell.c.


















1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+







/* DO NOT EDIT!
** This file is automatically generated by the script in the canonical
** SQLite source tree at tool/mkshellc.tcl.  That script combines source
** code from various constituent source files of SQLite into this single
** "shell.c" file used to implement the SQLite command-line shell.
**
** Most of the code found below comes from the "src/shell.c.in" file in
** the canonical SQLite source tree.  That main file contains "INCLUDE"
** lines that specify other files in the canonical source tree that are
** inserted to getnerate this complete program source file.
**
** The code from multiple files is combined into this single "shell.c"
** source file to help make the command-line program easier to compile.
**
** To modify this program, get a copy of the canonical SQLite source tree,
** edit the src/shell.c.in" and/or some of the other files that are included
** by "src/shell.c.in", then rerun the tool/mkshellc.tcl script.
*/
/*
** 2001 September 15
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    May you do good and not evil.
762
763
764
765
766
767
768
769

770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786




















787
788

















789




790




791
792
793
794
795
796
797
780
781
782
783
784
785
786

787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824


825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858







-
+

















+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
+
+
+

+
+
+
+







     "VIRTUAL TABLE"
  };
  int i = 0;
  const char *zIn = (const char*)sqlite3_value_text(apVal[0]);
  const char *zSchema = (const char*)sqlite3_value_text(apVal[1]);
  assert( nVal==2 );
  if( zIn!=0 && strncmp(zIn, "CREATE ", 7)==0 ){
    for(i=0; i<sizeof(aPrefix)/sizeof(aPrefix[0]); i++){
    for(i=0; i<(int)(sizeof(aPrefix)/sizeof(aPrefix[0])); i++){
      int n = strlen30(aPrefix[i]);
      if( strncmp(zIn+7, aPrefix[i], n)==0 && zIn[n+7]==' ' ){
        char cQuote = quoteChar(zSchema);
        char *z;
        if( cQuote ){
         z = sqlite3_mprintf("%.*s \"%w\".%s", n+7, zIn, zSchema, zIn+n+8);
        }else{
          z = sqlite3_mprintf("%.*s %s.%s", n+7, zIn, zSchema, zIn+n+8);
        }
        sqlite3_result_text(pCtx, z, -1, sqlite3_free);
        return;
      }
    }
  }
  sqlite3_result_value(pCtx, apVal[0]);
}

/*
** The source code for several run-time loadable extensions is inserted
** below by the ../tool/mkshellc.tcl script.  Before processing that included
** code, we need to override some macros to make the included program code
** work here in the middle of this regular program.
*/
#define SQLITE_EXTENSION_INIT1
#define SQLITE_EXTENSION_INIT2(X) (void)(X)

/************************* Begin ../ext/misc/shathree.c ******************/
/*
** 2017-03-08
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
/******************************************************************************
** SHA3 hash implementation copied from ../ext/misc/shathree.c
******************************************************************************
**
** This SQLite extension implements a functions that compute SHA1 hashes.
** Two SQL functions are implemented:
**
**     sha3(X,SIZE)
**     sha3_query(Y,SIZE)
**
** The sha3(X) function computes the SHA3 hash of the input X, or NULL if
** X is NULL.
**
** The sha3_query(Y) function evalutes all queries in the SQL statements of Y
** and returns a hash of their results.
**
** The SIZE argument is optional.  If omitted, the SHA3-256 hash algorithm
** is used.  If SIZE is included it must be one of the integers 224, 256,
** 384, or 512, to determine SHA3 hash variant that is computed.
*/
SQLITE_EXTENSION_INIT1
#include <assert.h>
#include <string.h>
#include <stdarg.h>
typedef sqlite3_uint64 u64;

/******************************************************************************
** The Hash Engine
*/
/*
** Macros to determine whether the machine is big or little endian,
** and whether or not that determination is run-time or compile-time.
**
** For best performance, an attempt is made to guess at the byte-order
** using C-preprocessor macros.  If that is unsuccessful, or if
** -DSHA3_BYTEORDER=0 is set, then byte-order is determined
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
882
883
884
885
886
887
888




889
890
891
892
893
894
895







-
-
-
-







    unsigned char x[1600];    /* ... or 1600 bytes */
  } u;
  unsigned nRate;        /* Bytes of input accepted per Keccak iteration */
  unsigned nLoaded;      /* Input bytes loaded into u.x[] so far this cycle */
  unsigned ixMask;       /* Insert next input into u.x[nLoaded^ixMask]. */
};

/* Allow the following routine to use the B0 variable, which is also
** a macro in the termios.h header file */
#undef B0

/*
** A single step of the Keccak mixing function for a 1600-bit state
*/
static void KeccakF1600Step(SHA3Context *p){
  int i;
  u64 B0, B1, B2, B3, B4;
  u64 C0, C1, C2, C3, C4;
1235
1236
1237
1238
1239
1240
1241


1242
1243
1244
1245
1246
1247

1248
1249
1250
1251
1252
1253
1254
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305

1306
1307
1308
1309
1310
1311
1312
1313







+
+





-
+







    SHA3Update(p, &c3, 1);
  }
  for(i=0; i<p->nRate; i++){
    p->u.x[i+p->nRate] = p->u.x[i^p->ixMask];
  }
  return &p->u.x[p->nRate];
}
/* End of the hashing logic
*****************************************************************************/

/*
** Implementation of the sha3(X,SIZE) function.
**
** Return a BLOB which is the SIZE-bit SHA3 hash of X.  The default
** size is 256.  If X is a BLOB, it is hashed as is.
** size is 256.  If X is a BLOB, it is hashed as is.  
** For all other non-NULL types of input, X is converted into a UTF-8 string
** and the string is hashed without the trailing 0x00 terminator.  The hash
** of a NULL value is NULL.
*/
static void sha3Func(
  sqlite3_context *context,
  int argc,
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1430
1431
1432
1433
1434
1435
1436




1437
1438
1439
1440
1441
1442
1443







-
-
-
-







      sqlite3_finalize(pStmt);
      sqlite3_result_error(context, zMsg, -1);
      sqlite3_free(zMsg);
      return;
    }
    nCol = sqlite3_column_count(pStmt);
    z = sqlite3_sql(pStmt);
    if( z==0 ){
      sqlite3_finalize(pStmt);
      continue;
    }
    n = (int)strlen(z);
    hash_step_vformat(&cx,"S%d:",n);
    SHA3Update(&cx,(unsigned char*)z,n);

    /* Compute a hash over the result of the query */
    while( SQLITE_ROW==sqlite3_step(pStmt) ){
      SHA3Update(&cx,(const unsigned char*)"R",1);
1437
1438
1439
1440
1441
1442
1443
















































































































































































































































































































































1444
1445




































































































































































































































































































































1446
1447
1448
1449
1450
1451
1452
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834


1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165







+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+







        }
      }
    }
    sqlite3_finalize(pStmt);
  }
  sqlite3_result_blob(context, SHA3Final(&cx), iSize/8, SQLITE_TRANSIENT);
}


#ifdef _WIN32
__declspec(dllexport)
#endif
int sqlite3_shathree_init(
  sqlite3 *db,
  char **pzErrMsg,
  const sqlite3_api_routines *pApi
){
  int rc = SQLITE_OK;
  SQLITE_EXTENSION_INIT2(pApi);
  (void)pzErrMsg;  /* Unused parameter */
  rc = sqlite3_create_function(db, "sha3", 1, SQLITE_UTF8, 0,
                               sha3Func, 0, 0);
  if( rc==SQLITE_OK ){
    rc = sqlite3_create_function(db, "sha3", 2, SQLITE_UTF8, 0,
                                 sha3Func, 0, 0);
  }
  if( rc==SQLITE_OK ){
    rc = sqlite3_create_function(db, "sha3_query", 1, SQLITE_UTF8, 0,
                                 sha3QueryFunc, 0, 0);
  }
  if( rc==SQLITE_OK ){
    rc = sqlite3_create_function(db, "sha3_query", 2, SQLITE_UTF8, 0,
                                 sha3QueryFunc, 0, 0);
  }
  return rc;
}

/************************* End ../ext/misc/shathree.c ********************/
/************************* Begin ../ext/misc/fileio.c ******************/
/*
** 2014-06-13
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
******************************************************************************
**
** This SQLite extension implements SQL functions readfile() and
** writefile().
*/
SQLITE_EXTENSION_INIT1
#include <stdio.h>

/*
** Implementation of the "readfile(X)" SQL function.  The entire content
** of the file named X is read and returned as a BLOB.  NULL is returned
** if the file does not exist or is unreadable.
*/
static void readfileFunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  const char *zName;
  FILE *in;
  long nIn;
  void *pBuf;

  (void)(argc);  /* Unused parameter */
  zName = (const char*)sqlite3_value_text(argv[0]);
  if( zName==0 ) return;
  in = fopen(zName, "rb");
  if( in==0 ) return;
  fseek(in, 0, SEEK_END);
  nIn = ftell(in);
  rewind(in);
  pBuf = sqlite3_malloc( nIn );
  if( pBuf && 1==fread(pBuf, nIn, 1, in) ){
    sqlite3_result_blob(context, pBuf, nIn, sqlite3_free);
  }else{
    sqlite3_free(pBuf);
  }
  fclose(in);
}

/*
** Implementation of the "writefile(X,Y)" SQL function.  The argument Y
** is written into file X.  The number of bytes written is returned.  Or
** NULL is returned if something goes wrong, such as being unable to open
** file X for writing.
*/
static void writefileFunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  FILE *out;
  const char *z;
  sqlite3_int64 rc;
  const char *zFile;

  (void)(argc);  /* Unused parameter */
  zFile = (const char*)sqlite3_value_text(argv[0]);
  if( zFile==0 ) return;
  out = fopen(zFile, "wb");
  if( out==0 ) return;
  z = (const char*)sqlite3_value_blob(argv[1]);
  if( z==0 ){
    rc = 0;
  }else{
    rc = fwrite(z, 1, sqlite3_value_bytes(argv[1]), out);
  }
  fclose(out);
  sqlite3_result_int64(context, rc);
}


#ifdef _WIN32
__declspec(dllexport)
#endif
int sqlite3_fileio_init(
  sqlite3 *db, 
  char **pzErrMsg, 
  const sqlite3_api_routines *pApi
){
  int rc = SQLITE_OK;
  SQLITE_EXTENSION_INIT2(pApi);
  (void)pzErrMsg;  /* Unused parameter */
  rc = sqlite3_create_function(db, "readfile", 1, SQLITE_UTF8, 0,
                               readfileFunc, 0, 0);
  if( rc==SQLITE_OK ){
    rc = sqlite3_create_function(db, "writefile", 2, SQLITE_UTF8, 0,
                                 writefileFunc, 0, 0);
  }
  return rc;
}

/************************* End ../ext/misc/fileio.c ********************/
/************************* Begin ../ext/misc/completion.c ******************/
/*
** 2017-07-10
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
**
** This file implements an eponymous virtual table that returns suggested
** completions for a partial SQL input.
**
** Suggested usage:
**
**     SELECT DISTINCT candidate COLLATE nocase
**       FROM completion($prefix,$wholeline)
**      ORDER BY 1;
**
** The two query parameters are optional.  $prefix is the text of the
** current word being typed and that is to be completed.  $wholeline is
** the complete input line, used for context.
**
** The raw completion() table might return the same candidate multiple
** times, for example if the same column name is used to two or more
** tables.  And the candidates are returned in an arbitrary order.  Hence,
** the DISTINCT and ORDER BY are recommended.
**
** This virtual table operates at the speed of human typing, and so there
** is no attempt to make it fast.  Even a slow implementation will be much
** faster than any human can type.
**
*/
SQLITE_EXTENSION_INIT1
#include <assert.h>
#include <string.h>
#include <ctype.h>

#ifndef SQLITE_OMIT_VIRTUALTABLE

/* completion_vtab is a subclass of sqlite3_vtab which will
** serve as the underlying representation of a completion virtual table
*/
typedef struct completion_vtab completion_vtab;
struct completion_vtab {
  sqlite3_vtab base;  /* Base class - must be first */
  sqlite3 *db;        /* Database connection for this completion vtab */
};

/* completion_cursor is a subclass of sqlite3_vtab_cursor which will
** serve as the underlying representation of a cursor that scans
** over rows of the result
*/
typedef struct completion_cursor completion_cursor;
struct completion_cursor {
  sqlite3_vtab_cursor base;  /* Base class - must be first */
  sqlite3 *db;               /* Database connection for this cursor */
  int nPrefix, nLine;        /* Number of bytes in zPrefix and zLine */
  char *zPrefix;             /* The prefix for the word we want to complete */
  char *zLine;               /* The whole that we want to complete */
  const char *zCurrentRow;   /* Current output row */
  sqlite3_stmt *pStmt;       /* Current statement */
  sqlite3_int64 iRowid;      /* The rowid */
  int ePhase;                /* Current phase */
  int j;                     /* inter-phase counter */
};

/* Values for ePhase:
*/
#define COMPLETION_FIRST_PHASE   1
#define COMPLETION_KEYWORDS      1
#define COMPLETION_PRAGMAS       2
#define COMPLETION_FUNCTIONS     3
#define COMPLETION_COLLATIONS    4
#define COMPLETION_INDEXES       5
#define COMPLETION_TRIGGERS      6
#define COMPLETION_DATABASES     7
#define COMPLETION_TABLES        8
#define COMPLETION_COLUMNS       9
#define COMPLETION_MODULES       10
#define COMPLETION_EOF           11

/*
** The completionConnect() method is invoked to create a new
** completion_vtab that describes the completion virtual table.
**
** Think of this routine as the constructor for completion_vtab objects.
**
** All this routine needs to do is:
**
**    (1) Allocate the completion_vtab object and initialize all fields.
**
**    (2) Tell SQLite (via the sqlite3_declare_vtab() interface) what the
**        result set of queries against completion will look like.
*/
static int completionConnect(
  sqlite3 *db,
  void *pAux,
  int argc, const char *const*argv,
  sqlite3_vtab **ppVtab,
  char **pzErr
){
  completion_vtab *pNew;
  int rc;

  (void)(pAux);    /* Unused parameter */
  (void)(argc);    /* Unused parameter */
  (void)(argv);    /* Unused parameter */
  (void)(pzErr);   /* Unused parameter */

/* Column numbers */
#define COMPLETION_COLUMN_CANDIDATE 0  /* Suggested completion of the input */
#define COMPLETION_COLUMN_PREFIX    1  /* Prefix of the word to be completed */
#define COMPLETION_COLUMN_WHOLELINE 2  /* Entire line seen so far */
#define COMPLETION_COLUMN_PHASE     3  /* ePhase - used for debugging only */

  rc = sqlite3_declare_vtab(db,
      "CREATE TABLE x("
      "  candidate TEXT,"
      "  prefix TEXT HIDDEN,"
      "  wholeline TEXT HIDDEN,"
      "  phase INT HIDDEN"        /* Used for debugging only */
      ")");
  if( rc==SQLITE_OK ){
    pNew = sqlite3_malloc( sizeof(*pNew) );
    *ppVtab = (sqlite3_vtab*)pNew;
    if( pNew==0 ) return SQLITE_NOMEM;
    memset(pNew, 0, sizeof(*pNew));
    pNew->db = db;
  }
  return rc;
}

/*
** This method is the destructor for completion_cursor objects.
*/
static int completionDisconnect(sqlite3_vtab *pVtab){
  sqlite3_free(pVtab);
  return SQLITE_OK;
}

/*
** Constructor for a new completion_cursor object.
*/
static int completionOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
  completion_cursor *pCur;
  pCur = sqlite3_malloc( sizeof(*pCur) );
  if( pCur==0 ) return SQLITE_NOMEM;
  memset(pCur, 0, sizeof(*pCur));
  pCur->db = ((completion_vtab*)p)->db;
  *ppCursor = &pCur->base;
  return SQLITE_OK;
}

/*
** Reset the completion_cursor.
*/
static void completionCursorReset(completion_cursor *pCur){
  sqlite3_free(pCur->zPrefix);   pCur->zPrefix = 0;  pCur->nPrefix = 0;
  sqlite3_free(pCur->zLine);     pCur->zLine = 0;    pCur->nLine = 0;
  sqlite3_finalize(pCur->pStmt); pCur->pStmt = 0;
  pCur->j = 0;
}

/*
** Destructor for a completion_cursor.
*/
static int completionClose(sqlite3_vtab_cursor *cur){
  completionCursorReset((completion_cursor*)cur);
  sqlite3_free(cur);
  return SQLITE_OK;
}

/*
** All SQL keywords understood by SQLite
*/
static const char *completionKwrds[] = {
  "ABORT", "ACTION", "ADD", "AFTER", "ALL", "ALTER", "ANALYZE", "AND", "AS",
  "ASC", "ATTACH", "AUTOINCREMENT", "BEFORE", "BEGIN", "BETWEEN", "BY",
  "CASCADE", "CASE", "CAST", "CHECK", "COLLATE", "COLUMN", "COMMIT",
  "CONFLICT", "CONSTRAINT", "CREATE", "CROSS", "CURRENT_DATE",
  "CURRENT_TIME", "CURRENT_TIMESTAMP", "DATABASE", "DEFAULT", "DEFERRABLE",
  "DEFERRED", "DELETE", "DESC", "DETACH", "DISTINCT", "DROP", "EACH",
  "ELSE", "END", "ESCAPE", "EXCEPT", "EXCLUSIVE", "EXISTS", "EXPLAIN",
  "FAIL", "FOR", "FOREIGN", "FROM", "FULL", "GLOB", "GROUP", "HAVING", "IF",
  "IGNORE", "IMMEDIATE", "IN", "INDEX", "INDEXED", "INITIALLY", "INNER",
  "INSERT", "INSTEAD", "INTERSECT", "INTO", "IS", "ISNULL", "JOIN", "KEY",
  "LEFT", "LIKE", "LIMIT", "MATCH", "NATURAL", "NO", "NOT", "NOTNULL",
  "NULL", "OF", "OFFSET", "ON", "OR", "ORDER", "OUTER", "PLAN", "PRAGMA",
  "PRIMARY", "QUERY", "RAISE", "RECURSIVE", "REFERENCES", "REGEXP",
  "REINDEX", "RELEASE", "RENAME", "REPLACE", "RESTRICT", "RIGHT",
  "ROLLBACK", "ROW", "SAVEPOINT", "SELECT", "SET", "TABLE", "TEMP",
  "TEMPORARY", "THEN", "TO", "TRANSACTION", "TRIGGER", "UNION", "UNIQUE",
  "UPDATE", "USING", "VACUUM", "VALUES", "VIEW", "VIRTUAL", "WHEN", "WHERE",
  "WITH", "WITHOUT",
};
#define completionKwCount \
   (int)(sizeof(completionKwrds)/sizeof(completionKwrds[0]))
/* End of SHA3 hashing logic copy/pasted from ../ext/misc/shathree.c
********************************************************************************/

/*
** Advance a completion_cursor to its next row of output.
**
** The ->ePhase, ->j, and ->pStmt fields of the completion_cursor object
** record the current state of the scan.  This routine sets ->zCurrentRow
** to the current row of output and then returns.  If no more rows remain,
** then ->ePhase is set to COMPLETION_EOF which will signal the virtual
** table that has reached the end of its scan.
**
** The current implementation just lists potential identifiers and
** keywords and filters them by zPrefix.  Future enhancements should
** take zLine into account to try to restrict the set of identifiers and
** keywords based on what would be legal at the current point of input.
*/
static int completionNext(sqlite3_vtab_cursor *cur){
  completion_cursor *pCur = (completion_cursor*)cur;
  int eNextPhase = 0;  /* Next phase to try if current phase reaches end */
  int iCol = -1;       /* If >=0, step pCur->pStmt and use the i-th column */
  pCur->iRowid++;
  while( pCur->ePhase!=COMPLETION_EOF ){
    switch( pCur->ePhase ){
      case COMPLETION_KEYWORDS: {
        if( pCur->j >= completionKwCount ){
          pCur->zCurrentRow = 0;
          pCur->ePhase = COMPLETION_DATABASES;
        }else{
          pCur->zCurrentRow = completionKwrds[pCur->j++];
        }
        iCol = -1;
        break;
      }
      case COMPLETION_DATABASES: {
        if( pCur->pStmt==0 ){
          sqlite3_prepare_v2(pCur->db, "PRAGMA database_list", -1,
                             &pCur->pStmt, 0);
        }
        iCol = 1;
        eNextPhase = COMPLETION_TABLES;
        break;
      }
      case COMPLETION_TABLES: {
        if( pCur->pStmt==0 ){
          sqlite3_stmt *pS2;
          char *zSql = 0;
          const char *zSep = "";
          sqlite3_prepare_v2(pCur->db, "PRAGMA database_list", -1, &pS2, 0);
          while( sqlite3_step(pS2)==SQLITE_ROW ){
            const char *zDb = (const char*)sqlite3_column_text(pS2, 1);
            zSql = sqlite3_mprintf(
               "%z%s"
               "SELECT name FROM \"%w\".sqlite_master"
               " WHERE type='table'",
               zSql, zSep, zDb
            );
            if( zSql==0 ) return SQLITE_NOMEM;
            zSep = " UNION ";
          }
          sqlite3_finalize(pS2);
          sqlite3_prepare_v2(pCur->db, zSql, -1, &pCur->pStmt, 0);
          sqlite3_free(zSql);
        }
        iCol = 0;
        eNextPhase = COMPLETION_COLUMNS;
        break;
      }
      case COMPLETION_COLUMNS: {
        if( pCur->pStmt==0 ){
          sqlite3_stmt *pS2;
          char *zSql = 0;
          const char *zSep = "";
          sqlite3_prepare_v2(pCur->db, "PRAGMA database_list", -1, &pS2, 0);
          while( sqlite3_step(pS2)==SQLITE_ROW ){
            const char *zDb = (const char*)sqlite3_column_text(pS2, 1);
            zSql = sqlite3_mprintf(
               "%z%s"
               "SELECT pti.name FROM \"%w\".sqlite_master AS sm"
                       " JOIN pragma_table_info(sm.name,%Q) AS pti"
               " WHERE sm.type='table'",
               zSql, zSep, zDb, zDb
            );
            if( zSql==0 ) return SQLITE_NOMEM;
            zSep = " UNION ";
          }
          sqlite3_finalize(pS2);
          sqlite3_prepare_v2(pCur->db, zSql, -1, &pCur->pStmt, 0);
          sqlite3_free(zSql);
        }
        iCol = 0;
        eNextPhase = COMPLETION_EOF;
        break;
      }
    }
    if( iCol<0 ){
      /* This case is when the phase presets zCurrentRow */
      if( pCur->zCurrentRow==0 ) continue;
    }else{
      if( sqlite3_step(pCur->pStmt)==SQLITE_ROW ){
        /* Extract the next row of content */
        pCur->zCurrentRow = (const char*)sqlite3_column_text(pCur->pStmt, iCol);
      }else{
        /* When all rows are finished, advance to the next phase */
        sqlite3_finalize(pCur->pStmt);
        pCur->pStmt = 0;
        pCur->ePhase = eNextPhase;
        continue;
      }
    }
    if( pCur->nPrefix==0 ) break;
    if( sqlite3_strnicmp(pCur->zPrefix, pCur->zCurrentRow, pCur->nPrefix)==0 ){
      break;
    }
  }

  return SQLITE_OK;
}

/*
** Return values of columns for the row at which the completion_cursor
** is currently pointing.
*/
static int completionColumn(
  sqlite3_vtab_cursor *cur,   /* The cursor */
  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
  int i                       /* Which column to return */
){
  completion_cursor *pCur = (completion_cursor*)cur;
  switch( i ){
    case COMPLETION_COLUMN_CANDIDATE: {
      sqlite3_result_text(ctx, pCur->zCurrentRow, -1, SQLITE_TRANSIENT);
      break;
    }
    case COMPLETION_COLUMN_PREFIX: {
      sqlite3_result_text(ctx, pCur->zPrefix, -1, SQLITE_TRANSIENT);
      break;
    }
    case COMPLETION_COLUMN_WHOLELINE: {
      sqlite3_result_text(ctx, pCur->zLine, -1, SQLITE_TRANSIENT);
      break;
    }
    case COMPLETION_COLUMN_PHASE: {
      sqlite3_result_int(ctx, pCur->ePhase);
      break;
    }
  }
  return SQLITE_OK;
}

/*
** Return the rowid for the current row.  In this implementation, the
** rowid is the same as the output value.
*/
static int completionRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
  completion_cursor *pCur = (completion_cursor*)cur;
  *pRowid = pCur->iRowid;
  return SQLITE_OK;
}

/*
** Return TRUE if the cursor has been moved off of the last
** row of output.
*/
static int completionEof(sqlite3_vtab_cursor *cur){
  completion_cursor *pCur = (completion_cursor*)cur;
  return pCur->ePhase >= COMPLETION_EOF;
}

/*
** This method is called to "rewind" the completion_cursor object back
** to the first row of output.  This method is always called at least
** once prior to any call to completionColumn() or completionRowid() or 
** completionEof().
*/
static int completionFilter(
  sqlite3_vtab_cursor *pVtabCursor, 
  int idxNum, const char *idxStr,
  int argc, sqlite3_value **argv
){
  completion_cursor *pCur = (completion_cursor *)pVtabCursor;
  int iArg = 0;
  (void)(idxStr);   /* Unused parameter */
  (void)(argc);     /* Unused parameter */
  completionCursorReset(pCur);
  if( idxNum & 1 ){
    pCur->nPrefix = sqlite3_value_bytes(argv[iArg]);
    if( pCur->nPrefix>0 ){
      pCur->zPrefix = sqlite3_mprintf("%s", sqlite3_value_text(argv[iArg]));
      if( pCur->zPrefix==0 ) return SQLITE_NOMEM;
    }
    iArg++;
  }
  if( idxNum & 2 ){
    pCur->nLine = sqlite3_value_bytes(argv[iArg]);
    if( pCur->nLine>0 ){
      pCur->zLine = sqlite3_mprintf("%s", sqlite3_value_text(argv[iArg]));
      if( pCur->zLine==0 ) return SQLITE_NOMEM;
    }
    iArg++;
  }
  if( pCur->zLine!=0 && pCur->zPrefix==0 ){
    int i = pCur->nLine;
    while( i>0 && (isalnum(pCur->zLine[i-1]) || pCur->zLine[i-1]=='_') ){
      i--;
    }
    pCur->nPrefix = pCur->nLine - i;
    if( pCur->nPrefix>0 ){
      pCur->zPrefix = sqlite3_mprintf("%.*s", pCur->nPrefix, pCur->zLine + i);
      if( pCur->zPrefix==0 ) return SQLITE_NOMEM;
    }
  }
  pCur->iRowid = 0;
  pCur->ePhase = COMPLETION_FIRST_PHASE;
  return completionNext(pVtabCursor);
}

/*
** SQLite will invoke this method one or more times while planning a query
** that uses the completion virtual table.  This routine needs to create
** a query plan for each invocation and compute an estimated cost for that
** plan.
**
** There are two hidden parameters that act as arguments to the table-valued
** function:  "prefix" and "wholeline".  Bit 0 of idxNum is set if "prefix"
** is available and bit 1 is set if "wholeline" is available.
*/
static int completionBestIndex(
  sqlite3_vtab *tab,
  sqlite3_index_info *pIdxInfo
){
  int i;                 /* Loop over constraints */
  int idxNum = 0;        /* The query plan bitmask */
  int prefixIdx = -1;    /* Index of the start= constraint, or -1 if none */
  int wholelineIdx = -1; /* Index of the stop= constraint, or -1 if none */
  int nArg = 0;          /* Number of arguments that completeFilter() expects */
  const struct sqlite3_index_constraint *pConstraint;

  (void)(tab);    /* Unused parameter */
  pConstraint = pIdxInfo->aConstraint;
  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
    if( pConstraint->usable==0 ) continue;
    if( pConstraint->op!=SQLITE_INDEX_CONSTRAINT_EQ ) continue;
    switch( pConstraint->iColumn ){
      case COMPLETION_COLUMN_PREFIX:
        prefixIdx = i;
        idxNum |= 1;
        break;
      case COMPLETION_COLUMN_WHOLELINE:
        wholelineIdx = i;
        idxNum |= 2;
        break;
    }
  }
  if( prefixIdx>=0 ){
    pIdxInfo->aConstraintUsage[prefixIdx].argvIndex = ++nArg;
    pIdxInfo->aConstraintUsage[prefixIdx].omit = 1;
  }
  if( wholelineIdx>=0 ){
    pIdxInfo->aConstraintUsage[wholelineIdx].argvIndex = ++nArg;
    pIdxInfo->aConstraintUsage[wholelineIdx].omit = 1;
  }
  pIdxInfo->idxNum = idxNum;
  pIdxInfo->estimatedCost = (double)5000 - 1000*nArg;
  pIdxInfo->estimatedRows = 500 - 100*nArg;
  return SQLITE_OK;
}

/*
** This following structure defines all the methods for the 
** completion virtual table.
*/
static sqlite3_module completionModule = {
  0,                         /* iVersion */
  0,                         /* xCreate */
  completionConnect,         /* xConnect */
  completionBestIndex,       /* xBestIndex */
  completionDisconnect,      /* xDisconnect */
  0,                         /* xDestroy */
  completionOpen,            /* xOpen - open a cursor */
  completionClose,           /* xClose - close a cursor */
  completionFilter,          /* xFilter - configure scan constraints */
  completionNext,            /* xNext - advance a cursor */
  completionEof,             /* xEof - check for end of scan */
  completionColumn,          /* xColumn - read data */
  completionRowid,           /* xRowid - read data */
  0,                         /* xUpdate */
  0,                         /* xBegin */
  0,                         /* xSync */
  0,                         /* xCommit */
  0,                         /* xRollback */
  0,                         /* xFindMethod */
  0,                         /* xRename */
  0,                         /* xSavepoint */
  0,                         /* xRelease */
  0                          /* xRollbackTo */
};

#endif /* SQLITE_OMIT_VIRTUALTABLE */

int sqlite3CompletionVtabInit(sqlite3 *db){
  int rc = SQLITE_OK;
#ifndef SQLITE_OMIT_VIRTUALTABLE
  rc = sqlite3_create_module(db, "completion", &completionModule, 0);
#endif
  return rc;
}

#ifdef _WIN32
__declspec(dllexport)
#endif
int sqlite3_completion_init(
  sqlite3 *db, 
  char **pzErrMsg, 
  const sqlite3_api_routines *pApi
){
  int rc = SQLITE_OK;
  SQLITE_EXTENSION_INIT2(pApi);
  (void)(pzErrMsg);  /* Unused parameter */
#ifndef SQLITE_OMIT_VIRTUALTABLE
  rc = sqlite3CompletionVtabInit(db);
#endif
  return rc;
}

/************************* End ../ext/misc/completion.c ********************/

#if defined(SQLITE_ENABLE_SESSION)
/*
** State information for a single open session
*/
typedef struct OpenSession OpenSession;
struct OpenSession {
1519
1520
1521
1522
1523
1524
1525

1526
1527


1528
1529
1530
1531
1532
1533
1534
2232
2233
2234
2235
2236
2237
2238
2239


2240
2241
2242
2243
2244
2245
2246
2247
2248







+
-
-
+
+







** These are the allowed shellFlgs values
*/
#define SHFLG_Scratch        0x00000001 /* The --scratch option is used */
#define SHFLG_Pagecache      0x00000002 /* The --pagecache option is used */
#define SHFLG_Lookaside      0x00000004 /* Lookaside memory is used */
#define SHFLG_Backslash      0x00000008 /* The --backslash option is used */
#define SHFLG_PreserveRowid  0x00000010 /* .dump preserves rowid values */
#define SHFLG_Newlines       0x00000020 /* .dump --newline flag */
#define SHFLG_CountChanges   0x00000020 /* .changes setting */
#define SHFLG_Echo           0x00000040 /* .echo or --echo setting */
#define SHFLG_CountChanges   0x00000040 /* .changes setting */
#define SHFLG_Echo           0x00000080 /* .echo or --echo setting */

/*
** Macros for testing and setting shellFlgs
*/
#define ShellHasFlag(P,X)    (((P)->shellFlgs & (X))!=0)
#define ShellSetFlag(P,X)    ((P)->shellFlgs|=(X))
#define ShellClearFlag(P,X)  ((P)->shellFlgs&=(~(X)))
2191
2192
2193
2194
2195
2196
2197



2198


2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211


2212
2213
2214
2215
2216
2217
2218
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914

2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938







+
+
+
-
+
+













+
+







      }
      p->cnt++;
      for(i=0; i<nArg; i++){
        raw_printf(p->out, i>0 ? "," : " VALUES(");
        if( (azArg[i]==0) || (aiType && aiType[i]==SQLITE_NULL) ){
          utf8_printf(p->out,"NULL");
        }else if( aiType && aiType[i]==SQLITE_TEXT ){
          if( ShellHasFlag(p, SHFLG_Newlines) ){
            output_quoted_string(p->out, azArg[i]);
          }else{
          output_quoted_escaped_string(p->out, azArg[i]);
            output_quoted_escaped_string(p->out, azArg[i]);
          }
        }else if( aiType && aiType[i]==SQLITE_INTEGER ){
          utf8_printf(p->out,"%s", azArg[i]);
        }else if( aiType && aiType[i]==SQLITE_FLOAT ){
          char z[50];
          double r = sqlite3_column_double(p->pStmt, i);
          sqlite3_snprintf(50,z,"%!.20g", r);
          raw_printf(p->out, "%s", z);
        }else if( aiType && aiType[i]==SQLITE_BLOB && p->pStmt ){
          const void *pBlob = sqlite3_column_blob(p->pStmt, i);
          int nBlob = sqlite3_column_bytes(p->pStmt, i);
          output_hex_blob(p->out, pBlob, nBlob);
        }else if( isNumber(azArg[i], 0) ){
          utf8_printf(p->out,"%s", azArg[i]);
        }else if( ShellHasFlag(p, SHFLG_Newlines) ){
          output_quoted_string(p->out, azArg[i]);
        }else{
          output_quoted_escaped_string(p->out, azArg[i]);
        }
      }
      raw_printf(p->out,");\n");
      break;
    }
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
4180
4181
4182
4183
4184
4185
4186




















































4187
4188
4189
4190
4191
4192
4193







-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-







    return 0;
  }
  pBuf[nIn] = 0;
  if( pnByte ) *pnByte = nIn;
  return pBuf;
}

/*
** Implementation of the "readfile(X)" SQL function.  The entire content
** of the file named X is read and returned as a BLOB.  NULL is returned
** if the file does not exist or is unreadable.
*/
static void readfileFunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  const char *zName;
  void *pBuf;
  int nBuf;

  UNUSED_PARAMETER(argc);
  zName = (const char*)sqlite3_value_text(argv[0]);
  if( zName==0 ) return;
  pBuf = readFile(zName, &nBuf);
  if( pBuf ) sqlite3_result_blob(context, pBuf, nBuf, sqlite3_free);
}

/*
** Implementation of the "writefile(X,Y)" SQL function.  The argument Y
** is written into file X.  The number of bytes written is returned.  Or
** NULL is returned if something goes wrong, such as being unable to open
** file X for writing.
*/
static void writefileFunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  FILE *out;
  const char *z;
  sqlite3_int64 rc;
  const char *zFile;

  UNUSED_PARAMETER(argc);
  zFile = (const char*)sqlite3_value_text(argv[0]);
  if( zFile==0 ) return;
  out = fopen(zFile, "wb");
  if( out==0 ) return;
  z = (const char*)sqlite3_value_blob(argv[1]);
  if( z==0 ){
    rc = 0;
  }else{
    rc = fwrite(z, 1, sqlite3_value_bytes(argv[1]), out);
  }
  fclose(out);
  sqlite3_result_int64(context, rc);
}

#if defined(SQLITE_ENABLE_SESSION)
/*
** Close a single OpenSession object and release all of its associated
** resources.
*/
static void session_close(OpenSession *pSession){
  int i;
3577
3578
3579
3580
3581
3582
3583
3584
3585


3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598

































































3599

3600

3601
3602
3603
3604
3605
3606
3607
4245
4246
4247
4248
4249
4250
4251


4252
4253













4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329







-
-
+
+
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+

+







          p->zDbFilename, sqlite3_errmsg(p->db));
      if( keepAlive ) return;
      exit(1);
    }
#ifndef SQLITE_OMIT_LOAD_EXTENSION
    sqlite3_enable_load_extension(p->db, 1);
#endif
    sqlite3_create_function(p->db, "readfile", 1, SQLITE_UTF8, 0,
                            readfileFunc, 0, 0);
    sqlite3_fileio_init(p->db, 0, 0);
    sqlite3_shathree_init(p->db, 0, 0);
    sqlite3_create_function(p->db, "writefile", 2, SQLITE_UTF8, 0,
                            writefileFunc, 0, 0);
    sqlite3_create_function(p->db, "sha3", 1, SQLITE_UTF8, 0,
                            sha3Func, 0, 0);
    sqlite3_create_function(p->db, "sha3", 2, SQLITE_UTF8, 0,
                            sha3Func, 0, 0);
    sqlite3_create_function(p->db, "sha3_query", 1, SQLITE_UTF8, 0,
                            sha3QueryFunc, 0, 0);
    sqlite3_create_function(p->db, "sha3_query", 2, SQLITE_UTF8, 0,
                            sha3QueryFunc, 0, 0);
    sqlite3_create_function(p->db, "shell_add_schema", 2, SQLITE_UTF8, 0,
                            shellAddSchemaName, 0, 0);
                            
    sqlite3_completion_init(p->db, 0, 0);
    sqlite3_create_function(p->db, "shell_add_schema", 2, SQLITE_UTF8, 0,
                            shellAddSchemaName, 0, 0);
  }
}

#if HAVE_READLINE || HAVE_EDITLINE
/*
** Readline completion callbacks
*/
static char *readline_completion_generator(const char *text, int state){
  static sqlite3_stmt *pStmt = 0;
  char *zRet;
  if( state==0 ){
    char *zSql;
    sqlite3_finalize(pStmt);
    zSql = sqlite3_mprintf("SELECT DISTINCT candidate COLLATE nocase"
                           "  FROM completion(%Q) ORDER BY 1", text);
    sqlite3_prepare_v2(globalDb, zSql, -1, &pStmt, 0);
    sqlite3_free(zSql);
  }
  if( sqlite3_step(pStmt)==SQLITE_ROW ){
    zRet = strdup((const char*)sqlite3_column_text(pStmt, 0));
  }else{
    sqlite3_finalize(pStmt);
    pStmt = 0;
    zRet = 0;
  }
  return zRet;
}
static char **readline_completion(const char *zText, int iStart, int iEnd){
  rl_attempted_completion_over = 1;
  return rl_completion_matches(zText, readline_completion_generator);
}

#elif HAVE_LINENOISE
/*
** Linenoise completion callback
*/
static void linenoise_completion(const char *zLine, linenoiseCompletions *lc){
  int nLine = (int)strlen(zLine);
  int i, iStart;
  sqlite3_stmt *pStmt = 0;
  char *zSql;
  char zBuf[1000];

  if( nLine>sizeof(zBuf)-30 ) return;
  if( zLine[0]=='.' ) return;
  for(i=nLine-1; i>=0 && (isalnum(zLine[i]) || zLine[i]=='_'); i--){}
  if( i==nLine-1 ) return;
  iStart = i+1;
  memcpy(zBuf, zLine, iStart);
  zSql = sqlite3_mprintf("SELECT DISTINCT candidate COLLATE nocase"
                         "  FROM completion(%Q,%Q) ORDER BY 1",
                         &zLine[iStart], zLine);
  sqlite3_prepare_v2(globalDb, zSql, -1, &pStmt, 0);
  sqlite3_free(zSql);
  sqlite3_exec(globalDb, "PRAGMA page_count", 0, 0, 0); /* Load the schema */
  while( sqlite3_step(pStmt)==SQLITE_ROW ){
    const char *zCompletion = (const char*)sqlite3_column_text(pStmt, 0);
    int nCompletion = sqlite3_column_bytes(pStmt, 0);
    if( iStart+nCompletion < sizeof(zBuf)-1 ){
      memcpy(zBuf+iStart, zCompletion, nCompletion+1);
      linenoiseAddCompletion(lc, zBuf);
    }
  }
  sqlite3_finalize(pStmt);
}
#endif

/*
** Do C-language style dequoting.
**
**    \a    -> alarm
**    \b    -> backspace
**    \t    -> tab
4926
4927
4928
4929
4930
4931
4932
4933

4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947



4948
4949
4950
4951
4952
4953
4954


4955
4956
4957
4958
4959
4960
4961
5648
5649
5650
5651
5652
5653
5654

5655
5656
5657
5658
5659
5660
5661
5662
5663
5664
5665
5666
5667
5668
5669
5670
5671
5672
5673
5674
5675
5676
5677
5678

5679
5680
5681
5682
5683
5684
5685
5686
5687







-
+














+
+
+






-
+
+







    rc = shell_dbinfo_command(p, nArg, azArg);
  }else

  if( c=='d' && strncmp(azArg[0], "dump", n)==0 ){
    const char *zLike = 0;
    int i;
    int savedShowHeader = p->showHeader;
    ShellClearFlag(p, SHFLG_PreserveRowid);
    ShellClearFlag(p, SHFLG_PreserveRowid|SHFLG_Newlines);
    for(i=1; i<nArg; i++){
      if( azArg[i][0]=='-' ){
        const char *z = azArg[i]+1;
        if( z[0]=='-' ) z++;
        if( strcmp(z,"preserve-rowids")==0 ){
#ifdef SQLITE_OMIT_VIRTUALTABLE
          raw_printf(stderr, "The --preserve-rowids option is not compatible"
                             " with SQLITE_OMIT_VIRTUALTABLE\n");
          rc = 1;
          goto meta_command_exit;
#else
          ShellSetFlag(p, SHFLG_PreserveRowid);
#endif
        }else
        if( strcmp(z,"newlines")==0 ){
          ShellSetFlag(p, SHFLG_Newlines);
        }else
        {
          raw_printf(stderr, "Unknown option \"%s\" on \".dump\"\n", azArg[i]);
          rc = 1;
          goto meta_command_exit;
        }
      }else if( zLike ){
        raw_printf(stderr, "Usage: .dump ?--preserve-rowids? ?LIKE-PATTERN?\n");
        raw_printf(stderr, "Usage: .dump ?--preserve-rowids? "
                           "?--newlines? ?LIKE-PATTERN?\n");
        rc = 1;
        goto meta_command_exit;
      }else{
        zLike = azArg[i];
      }
    }
    open_db(p, 0);
5825
5826
5827
5828
5829
5830
5831
5832
5833








5834
5835
5836
5837
5838
5839
5840
6551
6552
6553
6554
6555
6556
6557


6558
6559
6560
6561
6562
6563
6564
6565
6566
6567
6568
6569
6570
6571
6572







-
-
+
+
+
+
+
+
+
+







    }else{
      raw_printf(stderr, "Usage: .schema ?--indent? ?LIKE-PATTERN?\n");
      rc = 1;
      goto meta_command_exit;
    }
    if( zDiv ){
      sqlite3_stmt *pStmt = 0;
      sqlite3_prepare_v2(p->db, "SELECT name FROM pragma_database_list",
                         -1, &pStmt, 0);
      rc = sqlite3_prepare_v2(p->db, "SELECT name FROM pragma_database_list",
                              -1, &pStmt, 0);
      if( rc ){
        utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(p->db));
        sqlite3_finalize(pStmt);
        rc = 1;
        goto meta_command_exit;
      }
      appendText(&sSelect, "SELECT sql FROM", 0);
      iSchema = 0;
      while( sqlite3_step(pStmt)==SQLITE_ROW ){
        const char *zDb = (const char*)sqlite3_column_text(pStmt, 0);
        char zScNum[30];
        sqlite3_snprintf(sizeof(zScNum), zScNum, "%d", ++iSchema);
        appendText(&sSelect, zDiv, 0);
7632
7633
7634
7635
7636
7637
7638





7639
7640
7641

7642
7643
7644
7645
7646
7647
7648
7649
7650
7651
7652
7653
7654
7655
7656
7657
7658
7659
7660
7661

8364
8365
8366
8367
8368
8369
8370
8371
8372
8373
8374
8375
8376
8377

8378
8379
8380
8381
8382
8383
8384
8385
8386
8387
8388
8389
8390
8391
8392
8393
8394
8395
8396
8397
8398
8399







+
+
+
+
+


-
+




















+
      if( zHome ){
        nHistory = strlen30(zHome) + 20;
        if( (zHistory = malloc(nHistory))!=0 ){
          sqlite3_snprintf(nHistory, zHistory,"%s/.sqlite_history", zHome);
        }
      }
      if( zHistory ){ shell_read_history(zHistory); }
#if HAVE_READLINE || HAVE_EDITLINE
      rl_attempted_completion_function = readline_completion;
#elif HAVE_LINENOISE
      linenoiseSetCompletionCallback(linenoise_completion);
#endif
      rc = process_input(&data, 0);
      if( zHistory ){
        shell_stifle_history(100);
        shell_stifle_history(2000);
        shell_write_history(zHistory);
        free(zHistory);
      }
    }else{
      rc = process_input(&data, stdin);
    }
  }
  set_table_name(&data, 0);
  if( data.db ){
    session_close_all(&data);
    sqlite3_close(data.db);
  }
  sqlite3_free(data.zFreeOnClose);
  find_home_dir(1);
#if !SQLITE_SHELL_IS_UTF8
  for(i=0; i<argc; i++) sqlite3_free(argv[i]);
  sqlite3_free(argv);
#endif
  return rc;
}

Added src/shell.c.in.






























































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
5046
5047
5048
5049
5050
5051
5052
5053
5054
5055
5056
5057
5058
5059
5060
5061
5062
5063
5064
5065
5066
5067
5068
5069
5070
5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085
5086
5087
5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
5298
5299
5300
5301
5302
5303
5304
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
5343
5344
5345
5346
5347
5348
5349
5350
5351
5352
5353
5354
5355
5356
5357
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
5373
5374
5375
5376
5377
5378
5379
5380
5381
5382
5383
5384
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
5426
5427
5428
5429
5430
5431
5432
5433
5434
5435
5436
5437
5438
5439
5440
5441
5442
5443
5444
5445
5446
5447
5448
5449
5450
5451
5452
5453
5454
5455
5456
5457
5458
5459
5460
5461
5462
5463
5464
5465
5466
5467
5468
5469
5470
5471
5472
5473
5474
5475
5476
5477
5478
5479
5480
5481
5482
5483
5484
5485
5486
5487
5488
5489
5490
5491
5492
5493
5494
5495
5496
5497
5498
5499
5500
5501
5502
5503
5504
5505
5506
5507
5508
5509
5510
5511
5512
5513
5514
5515
5516
5517
5518
5519
5520
5521
5522
5523
5524
5525
5526
5527
5528
5529
5530
5531
5532
5533
5534
5535
5536
5537
5538
5539
5540
5541
5542
5543
5544
5545
5546
5547
5548
5549
5550
5551
5552
5553
5554
5555
5556
5557
5558
5559
5560
5561
5562
5563
5564
5565
5566
5567
5568
5569
5570
5571
5572
5573
5574
5575
5576
5577
5578
5579
5580
5581
5582
5583
5584
5585
5586
5587
5588
5589
5590
5591
5592
5593
5594
5595
5596
5597
5598
5599
5600
5601
5602
5603
5604
5605
5606
5607
5608
5609
5610
5611
5612
5613
5614
5615
5616
5617
5618
5619
5620
5621
5622
5623
5624
5625
5626
5627
5628
5629
5630
5631
5632
5633
5634
5635
5636
5637
5638
5639
5640
5641
5642
5643
5644
5645
5646
5647
5648
5649
5650
5651
5652
5653
5654
5655
5656
5657
5658
5659
5660
5661
5662
5663
5664
5665
5666
5667
5668
5669
5670
5671
5672
5673
5674
5675
5676
5677
5678
5679
5680
5681
5682
5683
5684
5685
5686
5687
5688
5689
5690
5691
5692
5693
5694
5695
5696
5697
5698
5699
5700
5701
5702
5703
5704
5705
5706
5707
5708
5709
5710
5711
5712
5713
5714
5715
5716
5717
5718
5719
5720
5721
5722
5723
5724
5725
5726
5727
5728
5729
5730
5731
5732
5733
5734
5735
5736
5737
5738
5739
5740
5741
5742
5743
5744
5745
5746
5747
5748
5749
5750
5751
5752
5753
5754
5755
5756
5757
5758
5759
5760
5761
5762
5763
5764
5765
5766
5767
5768
5769
5770
5771
5772
5773
5774
5775
5776
5777
5778
5779
5780
5781
5782
5783
5784
5785
5786
5787
5788
5789
5790
5791
5792
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
5804
5805
5806
5807
5808
5809
5810
5811
5812
5813
5814
5815
5816
5817
5818
5819
5820
5821
5822
5823
5824
5825
5826
5827
5828
5829
5830
5831
5832
5833
5834
5835
5836
5837
5838
5839
5840
5841
5842
5843
5844
5845
5846
5847
5848
5849
5850
5851
5852
5853
5854
5855
5856
5857
5858
5859
5860
5861
5862
5863
5864
5865
5866
5867
5868
5869
5870
5871
5872
5873
5874
5875
5876
5877
5878
5879
5880
5881
5882
5883
5884
5885
5886
5887
5888
5889
5890
5891
5892
5893
5894
5895
5896
5897
5898
5899
5900
5901
5902
5903
5904
5905
5906
5907
5908
5909
5910
5911
5912
5913
5914
5915
5916
5917
5918
5919
5920
5921
5922
5923
5924
5925
5926
5927
5928
5929
5930
5931
5932
5933
5934
5935
5936
5937
5938
5939
5940
5941
5942
5943
5944
5945
5946
5947
5948
5949
5950
5951
5952
5953
5954
5955
5956
5957
5958
5959
5960
5961
5962
5963
5964
5965
5966
5967
5968
5969
5970
5971
5972
5973
5974
5975
5976
5977
5978
5979
5980
5981
5982
5983
5984
5985
5986
5987
5988
5989
5990
5991
5992
5993
5994
5995
5996
5997
5998
5999
6000
6001
6002
6003
6004
6005
6006
6007
6008
6009
6010
6011
6012
6013
6014
6015
6016
6017
6018
6019
6020
6021
6022
6023
6024
6025
6026
6027
6028
6029
6030
6031
6032
6033
6034
6035
6036
6037
6038
6039
6040
6041
6042
6043
6044
6045
6046
6047
6048
6049
6050
6051
6052
6053
6054
6055
6056
6057
6058
6059
6060
6061
6062
6063
6064
6065
6066
6067
6068
6069
6070
6071
6072
6073
6074
6075
6076
6077
6078
6079
6080
6081
6082
6083
6084
6085
6086
6087
6088
6089
6090
6091
6092
6093
6094
6095
6096
6097
6098
6099
6100
6101
6102
6103
6104
6105
6106
6107
6108
6109
6110
6111
6112
6113
6114
6115
6116
6117
6118
6119
6120
6121
6122
6123
6124
6125
6126
6127
6128
6129
6130
6131
6132
6133
6134
6135
6136
6137
6138
6139
6140
6141
6142
6143
6144
6145
6146
6147
6148
6149
6150
6151
6152
6153
6154
6155
6156
6157
6158
6159
6160
6161
6162
6163
6164
6165
6166
6167
6168
6169
6170
6171
6172
6173
6174
6175
6176
6177
6178
6179
6180
6181
6182
6183
6184
6185
6186
6187
6188
6189
6190
6191
6192
6193
6194
6195
6196
6197
6198
6199
6200
6201
6202
6203
6204
6205
6206
6207
6208
6209
6210
6211
6212
6213
6214
6215
6216
6217
6218
6219
6220
6221
6222
6223
6224
6225
6226
6227
6228
6229
6230
6231
6232
6233
6234
6235
6236
6237
6238
6239
6240
6241
6242
6243
6244
6245
6246
6247
6248
6249
6250
6251
6252
6253
6254
6255
6256
6257
6258
6259
6260
6261
6262
6263
6264
6265
6266
6267
6268
6269
6270
6271
6272
6273
6274
6275
6276
6277
6278
6279
6280
6281
6282
6283
6284
6285
6286
6287
6288
6289
6290
6291
6292
6293
6294
6295
6296
6297
6298
6299
6300
6301
6302
6303
6304
6305
6306
6307
6308
6309
6310
6311
6312
6313
6314
6315
6316
6317
6318
6319
6320
6321
6322
6323
6324
6325
6326
6327
6328
6329
6330
6331
6332
6333
6334
6335
6336
6337
6338
6339
6340
6341
6342
6343
6344
6345
6346
6347
6348
6349
6350
6351
6352
6353
6354
6355
6356
6357
6358
6359
6360
6361
6362
6363
6364
6365
6366
6367
6368
6369
6370
6371
6372
6373
6374
6375
6376
6377
6378
6379
6380
6381
6382
6383
6384
6385
6386
6387
6388
6389
6390
6391
6392
6393
6394
6395
6396
6397
6398
6399
6400
6401
6402
6403
6404
6405
6406
6407
6408
6409
6410
6411
6412
6413
6414
6415
6416
6417
6418
6419
6420
6421
6422
6423
6424
6425
6426
6427
6428
6429
6430
6431
6432
6433
6434
6435
6436
6437
6438
6439
6440
6441
6442
6443
6444
6445
6446
6447
6448
6449
6450
6451
6452
6453
6454
6455
6456
6457
6458
6459
6460
6461
6462
6463
6464
6465
6466
6467
6468
6469
6470
6471
6472
6473
6474
6475
6476
6477
6478
6479
6480
6481
6482
6483
6484
6485
6486
6487
6488
6489
6490
6491
6492
6493
6494
6495
6496
6497
6498
6499
6500
6501
6502
6503
6504
6505
6506
6507
6508
6509
6510
6511
6512
6513
6514
6515
6516
6517
6518
6519
6520
6521
6522
6523
6524
6525
6526
6527
6528
6529
6530
6531
6532
6533
6534
6535
6536
6537
6538
6539
6540
6541
6542
6543
6544
6545
6546
6547
6548
6549
6550
6551
6552
6553
6554
6555
6556
6557
6558
6559
6560
6561
6562
6563
6564
6565
6566
6567
6568
6569
6570
6571
6572
6573
6574
6575
6576
6577
6578
6579
6580
6581
6582
6583
6584
6585
6586
6587
6588
6589
6590
6591
6592
6593
6594
6595
6596
6597
6598
6599
6600
6601
6602
6603
6604
6605
6606
6607
6608
6609
6610
6611
6612
6613
6614
6615
6616
6617
6618
6619
6620
6621
6622
6623
6624
6625
6626
6627
6628
6629
6630
6631
6632
6633
6634
6635
6636
6637
6638
6639
6640
6641
6642
6643
6644
6645
6646
6647
6648
6649
6650
6651
6652
6653
6654
6655
6656
6657
6658
6659
6660
6661
6662
6663
6664
6665
6666
6667
6668
6669
6670
6671
6672
6673
6674
6675
6676
6677
6678
6679
6680
6681
6682
6683
6684
6685
6686
6687
6688
6689
6690
6691
6692
6693
6694
6695
6696
6697
6698
6699
6700
6701
6702
6703
6704
6705
6706
6707
6708
6709
6710
6711
6712
6713
6714
6715
6716
6717
6718
6719
6720
6721
6722
6723
6724
6725
6726
6727
6728
6729
6730
6731
6732
6733
6734
6735
6736
6737
6738
6739
6740
6741
6742
6743
6744
6745
6746
6747
6748
6749
6750
6751
6752
6753
6754
6755
6756
6757
6758
6759
6760
6761
6762
6763
6764
6765
6766
6767
6768
6769
6770
6771
6772
6773
6774
6775
6776
6777
6778
6779
6780
6781
6782
6783
6784
6785
6786
6787
6788
6789
6790
6791
6792
6793
6794
6795
6796
6797
6798
6799
6800
6801
6802
6803
6804
6805
6806
6807
6808
6809
6810
6811
6812
6813
6814
6815
6816
6817
6818
6819
6820
6821
6822
6823
6824
6825
6826
6827
6828
6829
6830
6831
6832
6833
6834
6835
6836
6837
6838
6839
6840
6841
6842
6843
6844
6845
6846
6847
6848
6849
6850
6851
6852
6853
6854
6855
6856
6857
6858
6859
6860
6861
6862
6863
6864
6865
6866
6867
6868
6869
6870
6871
6872
6873
6874
6875
6876
6877
6878
6879
6880
6881
6882
6883
6884
6885
6886
6887
6888
6889
6890
6891
6892
6893
6894
6895
6896
6897
6898
6899
6900
6901
6902
6903
6904
6905
6906
6907
6908
6909
6910
6911
6912
6913
6914
6915
6916
6917
6918
6919
6920
6921
6922
6923
6924
6925
6926
6927
6928
6929
6930
6931
6932
6933
6934
6935
6936
6937
6938
6939
6940
6941
6942
6943
6944
6945
6946
6947
6948
6949
6950
6951
6952
6953
6954
6955
6956
6957
6958
6959
6960
6961
6962
6963
6964
6965
6966
6967
6968
6969
6970
6971
6972
6973
6974
6975
6976
6977
6978
6979
6980
6981
6982
6983
6984
6985
6986
6987
6988
6989
6990
6991
6992
6993
6994
6995
6996
6997
6998
6999
7000
7001
7002
7003
7004
7005
7006
7007
7008
7009
7010
7011
7012
7013
7014
7015
7016
7017
7018
7019
7020
7021
7022
7023
7024
7025
7026
7027
7028
7029
7030
7031
7032
7033
7034
7035
7036
7037
7038
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
/*
** 2001 September 15
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains code to implement the "sqlite" command line
** utility for accessing SQLite databases.
*/
#if (defined(_WIN32) || defined(WIN32)) && !defined(_CRT_SECURE_NO_WARNINGS)
/* This needs to come before any includes for MSVC compiler */
#define _CRT_SECURE_NO_WARNINGS
#endif

/*
** Warning pragmas copied from msvc.h in the core.
*/
#if defined(_MSC_VER)
#pragma warning(disable : 4054)
#pragma warning(disable : 4055)
#pragma warning(disable : 4100)
#pragma warning(disable : 4127)
#pragma warning(disable : 4130)
#pragma warning(disable : 4152)
#pragma warning(disable : 4189)
#pragma warning(disable : 4206)
#pragma warning(disable : 4210)
#pragma warning(disable : 4232)
#pragma warning(disable : 4244)
#pragma warning(disable : 4305)
#pragma warning(disable : 4306)
#pragma warning(disable : 4702)
#pragma warning(disable : 4706)
#endif /* defined(_MSC_VER) */

/*
** No support for loadable extensions in VxWorks.
*/
#if (defined(__RTP__) || defined(_WRS_KERNEL)) && !SQLITE_OMIT_LOAD_EXTENSION
# define SQLITE_OMIT_LOAD_EXTENSION 1
#endif

/*
** Enable large-file support for fopen() and friends on unix.
*/
#ifndef SQLITE_DISABLE_LFS
# define _LARGE_FILE       1
# ifndef _FILE_OFFSET_BITS
#   define _FILE_OFFSET_BITS 64
# endif
# define _LARGEFILE_SOURCE 1
#endif

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <assert.h>
#include "sqlite3.h"
#if SQLITE_USER_AUTHENTICATION
# include "sqlite3userauth.h"
#endif
#include <ctype.h>
#include <stdarg.h>

#if !defined(_WIN32) && !defined(WIN32)
# include <signal.h>
# if !defined(__RTP__) && !defined(_WRS_KERNEL)
#  include <pwd.h>
# endif
# include <unistd.h>
# include <sys/types.h>
#endif

#if HAVE_READLINE
# include <readline/readline.h>
# include <readline/history.h>
#endif

#if HAVE_EDITLINE
# include <editline/readline.h>
#endif

#if HAVE_EDITLINE || HAVE_READLINE

# define shell_add_history(X) add_history(X)
# define shell_read_history(X) read_history(X)
# define shell_write_history(X) write_history(X)
# define shell_stifle_history(X) stifle_history(X)
# define shell_readline(X) readline(X)

#elif HAVE_LINENOISE

# include "linenoise.h"
# define shell_add_history(X) linenoiseHistoryAdd(X)
# define shell_read_history(X) linenoiseHistoryLoad(X)
# define shell_write_history(X) linenoiseHistorySave(X)
# define shell_stifle_history(X) linenoiseHistorySetMaxLen(X)
# define shell_readline(X) linenoise(X)

#else

# define shell_read_history(X)
# define shell_write_history(X)
# define shell_stifle_history(X)

# define SHELL_USE_LOCAL_GETLINE 1
#endif


#if defined(_WIN32) || defined(WIN32)
# include <io.h>
# include <fcntl.h>
# define isatty(h) _isatty(h)
# ifndef access
#  define access(f,m) _access((f),(m))
# endif
# undef popen
# define popen _popen
# undef pclose
# define pclose _pclose
#else
 /* Make sure isatty() has a prototype. */
 extern int isatty(int);

# if !defined(__RTP__) && !defined(_WRS_KERNEL)
  /* popen and pclose are not C89 functions and so are
  ** sometimes omitted from the <stdio.h> header */
   extern FILE *popen(const char*,const char*);
   extern int pclose(FILE*);
# else
#  define SQLITE_OMIT_POPEN 1
# endif
#endif

#if defined(_WIN32_WCE)
/* Windows CE (arm-wince-mingw32ce-gcc) does not provide isatty()
 * thus we always assume that we have a console. That can be
 * overridden with the -batch command line option.
 */
#define isatty(x) 1
#endif

/* ctype macros that work with signed characters */
#define IsSpace(X)  isspace((unsigned char)X)
#define IsDigit(X)  isdigit((unsigned char)X)
#define ToLower(X)  (char)tolower((unsigned char)X)

#if defined(_WIN32) || defined(WIN32)
#include <windows.h>

/* string conversion routines only needed on Win32 */
extern char *sqlite3_win32_unicode_to_utf8(LPCWSTR);
extern char *sqlite3_win32_mbcs_to_utf8_v2(const char *, int);
extern char *sqlite3_win32_utf8_to_mbcs_v2(const char *, int);
extern LPWSTR sqlite3_win32_utf8_to_unicode(const char *zText);
#endif

/* On Windows, we normally run with output mode of TEXT so that \n characters
** are automatically translated into \r\n.  However, this behavior needs
** to be disabled in some cases (ex: when generating CSV output and when
** rendering quoted strings that contain \n characters).  The following
** routines take care of that.
*/
#if defined(_WIN32) || defined(WIN32)
static void setBinaryMode(FILE *file, int isOutput){
  if( isOutput ) fflush(file);
  _setmode(_fileno(file), _O_BINARY);
}
static void setTextMode(FILE *file, int isOutput){
  if( isOutput ) fflush(file);
  _setmode(_fileno(file), _O_TEXT);
}
#else
# define setBinaryMode(X,Y)
# define setTextMode(X,Y)
#endif


/* True if the timer is enabled */
static int enableTimer = 0;

/* Return the current wall-clock time */
static sqlite3_int64 timeOfDay(void){
  static sqlite3_vfs *clockVfs = 0;
  sqlite3_int64 t;
  if( clockVfs==0 ) clockVfs = sqlite3_vfs_find(0);
  if( clockVfs->iVersion>=2 && clockVfs->xCurrentTimeInt64!=0 ){
    clockVfs->xCurrentTimeInt64(clockVfs, &t);
  }else{
    double r;
    clockVfs->xCurrentTime(clockVfs, &r);
    t = (sqlite3_int64)(r*86400000.0);
  }
  return t;
}

#if !defined(_WIN32) && !defined(WIN32) && !defined(__minux)
#include <sys/time.h>
#include <sys/resource.h>

/* VxWorks does not support getrusage() as far as we can determine */
#if defined(_WRS_KERNEL) || defined(__RTP__)
struct rusage {
  struct timeval ru_utime; /* user CPU time used */
  struct timeval ru_stime; /* system CPU time used */
};
#define getrusage(A,B) memset(B,0,sizeof(*B))
#endif

/* Saved resource information for the beginning of an operation */
static struct rusage sBegin;  /* CPU time at start */
static sqlite3_int64 iBegin;  /* Wall-clock time at start */

/*
** Begin timing an operation
*/
static void beginTimer(void){
  if( enableTimer ){
    getrusage(RUSAGE_SELF, &sBegin);
    iBegin = timeOfDay();
  }
}

/* Return the difference of two time_structs in seconds */
static double timeDiff(struct timeval *pStart, struct timeval *pEnd){
  return (pEnd->tv_usec - pStart->tv_usec)*0.000001 +
         (double)(pEnd->tv_sec - pStart->tv_sec);
}

/*
** Print the timing results.
*/
static void endTimer(void){
  if( enableTimer ){
    sqlite3_int64 iEnd = timeOfDay();
    struct rusage sEnd;
    getrusage(RUSAGE_SELF, &sEnd);
    printf("Run Time: real %.3f user %f sys %f\n",
       (iEnd - iBegin)*0.001,
       timeDiff(&sBegin.ru_utime, &sEnd.ru_utime),
       timeDiff(&sBegin.ru_stime, &sEnd.ru_stime));
  }
}

#define BEGIN_TIMER beginTimer()
#define END_TIMER endTimer()
#define HAS_TIMER 1

#elif (defined(_WIN32) || defined(WIN32))

/* Saved resource information for the beginning of an operation */
static HANDLE hProcess;
static FILETIME ftKernelBegin;
static FILETIME ftUserBegin;
static sqlite3_int64 ftWallBegin;
typedef BOOL (WINAPI *GETPROCTIMES)(HANDLE, LPFILETIME, LPFILETIME,
                                    LPFILETIME, LPFILETIME);
static GETPROCTIMES getProcessTimesAddr = NULL;

/*
** Check to see if we have timer support.  Return 1 if necessary
** support found (or found previously).
*/
static int hasTimer(void){
  if( getProcessTimesAddr ){
    return 1;
  } else {
    /* GetProcessTimes() isn't supported in WIN95 and some other Windows
    ** versions. See if the version we are running on has it, and if it
    ** does, save off a pointer to it and the current process handle.
    */
    hProcess = GetCurrentProcess();
    if( hProcess ){
      HINSTANCE hinstLib = LoadLibrary(TEXT("Kernel32.dll"));
      if( NULL != hinstLib ){
        getProcessTimesAddr =
            (GETPROCTIMES) GetProcAddress(hinstLib, "GetProcessTimes");
        if( NULL != getProcessTimesAddr ){
          return 1;
        }
        FreeLibrary(hinstLib);
      }
    }
  }
  return 0;
}

/*
** Begin timing an operation
*/
static void beginTimer(void){
  if( enableTimer && getProcessTimesAddr ){
    FILETIME ftCreation, ftExit;
    getProcessTimesAddr(hProcess,&ftCreation,&ftExit,
                        &ftKernelBegin,&ftUserBegin);
    ftWallBegin = timeOfDay();
  }
}

/* Return the difference of two FILETIME structs in seconds */
static double timeDiff(FILETIME *pStart, FILETIME *pEnd){
  sqlite_int64 i64Start = *((sqlite_int64 *) pStart);
  sqlite_int64 i64End = *((sqlite_int64 *) pEnd);
  return (double) ((i64End - i64Start) / 10000000.0);
}

/*
** Print the timing results.
*/
static void endTimer(void){
  if( enableTimer && getProcessTimesAddr){
    FILETIME ftCreation, ftExit, ftKernelEnd, ftUserEnd;
    sqlite3_int64 ftWallEnd = timeOfDay();
    getProcessTimesAddr(hProcess,&ftCreation,&ftExit,&ftKernelEnd,&ftUserEnd);
    printf("Run Time: real %.3f user %f sys %f\n",
       (ftWallEnd - ftWallBegin)*0.001,
       timeDiff(&ftUserBegin, &ftUserEnd),
       timeDiff(&ftKernelBegin, &ftKernelEnd));
  }
}

#define BEGIN_TIMER beginTimer()
#define END_TIMER endTimer()
#define HAS_TIMER hasTimer()

#else
#define BEGIN_TIMER
#define END_TIMER
#define HAS_TIMER 0
#endif

/*
** Used to prevent warnings about unused parameters
*/
#define UNUSED_PARAMETER(x) (void)(x)

/*
** If the following flag is set, then command execution stops
** at an error if we are not interactive.
*/
static int bail_on_error = 0;

/*
** Threat stdin as an interactive input if the following variable
** is true.  Otherwise, assume stdin is connected to a file or pipe.
*/
static int stdin_is_interactive = 1;

/*
** On Windows systems we have to know if standard output is a console
** in order to translate UTF-8 into MBCS.  The following variable is
** true if translation is required.
*/
static int stdout_is_console = 1;

/*
** The following is the open SQLite database.  We make a pointer
** to this database a static variable so that it can be accessed
** by the SIGINT handler to interrupt database processing.
*/
static sqlite3 *globalDb = 0;

/*
** True if an interrupt (Control-C) has been received.
*/
static volatile int seenInterrupt = 0;

/*
** This is the name of our program. It is set in main(), used
** in a number of other places, mostly for error messages.
*/
static char *Argv0;

/*
** Prompt strings. Initialized in main. Settable with
**   .prompt main continue
*/
static char mainPrompt[20];     /* First line prompt. default: "sqlite> "*/
static char continuePrompt[20]; /* Continuation prompt. default: "   ...> " */

/*
** Render output like fprintf().  Except, if the output is going to the
** console and if this is running on a Windows machine, translate the
** output from UTF-8 into MBCS.
*/
#if defined(_WIN32) || defined(WIN32)
void utf8_printf(FILE *out, const char *zFormat, ...){
  va_list ap;
  va_start(ap, zFormat);
  if( stdout_is_console && (out==stdout || out==stderr) ){
    char *z1 = sqlite3_vmprintf(zFormat, ap);
    char *z2 = sqlite3_win32_utf8_to_mbcs_v2(z1, 0);
    sqlite3_free(z1);
    fputs(z2, out);
    sqlite3_free(z2);
  }else{
    vfprintf(out, zFormat, ap);
  }
  va_end(ap);
}
#elif !defined(utf8_printf)
# define utf8_printf fprintf
#endif

/*
** Render output like fprintf().  This should not be used on anything that
** includes string formatting (e.g. "%s").
*/
#if !defined(raw_printf)
# define raw_printf fprintf
#endif

/*
** Write I/O traces to the following stream.
*/
#ifdef SQLITE_ENABLE_IOTRACE
static FILE *iotrace = 0;
#endif

/*
** This routine works like printf in that its first argument is a
** format string and subsequent arguments are values to be substituted
** in place of % fields.  The result of formatting this string
** is written to iotrace.
*/
#ifdef SQLITE_ENABLE_IOTRACE
static void SQLITE_CDECL iotracePrintf(const char *zFormat, ...){
  va_list ap;
  char *z;
  if( iotrace==0 ) return;
  va_start(ap, zFormat);
  z = sqlite3_vmprintf(zFormat, ap);
  va_end(ap);
  utf8_printf(iotrace, "%s", z);
  sqlite3_free(z);
}
#endif

/*
** Output string zUtf to stream pOut as w characters.  If w is negative,
** then right-justify the text.  W is the width in UTF-8 characters, not
** in bytes.  This is different from the %*.*s specification in printf
** since with %*.*s the width is measured in bytes, not characters.
*/
static void utf8_width_print(FILE *pOut, int w, const char *zUtf){
  int i;
  int n;
  int aw = w<0 ? -w : w;
  char zBuf[1000];
  if( aw>(int)sizeof(zBuf)/3 ) aw = (int)sizeof(zBuf)/3;
  for(i=n=0; zUtf[i]; i++){
    if( (zUtf[i]&0xc0)!=0x80 ){
      n++;
      if( n==aw ){
        do{ i++; }while( (zUtf[i]&0xc0)==0x80 );
        break;
      }
    }
  }
  if( n>=aw ){
    utf8_printf(pOut, "%.*s", i, zUtf);
  }else if( w<0 ){
    utf8_printf(pOut, "%*s%s", aw-n, "", zUtf);
  }else{
    utf8_printf(pOut, "%s%*s", zUtf, aw-n, "");
  }
}


/*
** Determines if a string is a number of not.
*/
static int isNumber(const char *z, int *realnum){
  if( *z=='-' || *z=='+' ) z++;
  if( !IsDigit(*z) ){
    return 0;
  }
  z++;
  if( realnum ) *realnum = 0;
  while( IsDigit(*z) ){ z++; }
  if( *z=='.' ){
    z++;
    if( !IsDigit(*z) ) return 0;
    while( IsDigit(*z) ){ z++; }
    if( realnum ) *realnum = 1;
  }
  if( *z=='e' || *z=='E' ){
    z++;
    if( *z=='+' || *z=='-' ) z++;
    if( !IsDigit(*z) ) return 0;
    while( IsDigit(*z) ){ z++; }
    if( realnum ) *realnum = 1;
  }
  return *z==0;
}

/*
** Compute a string length that is limited to what can be stored in
** lower 30 bits of a 32-bit signed integer.
*/
static int strlen30(const char *z){
  const char *z2 = z;
  while( *z2 ){ z2++; }
  return 0x3fffffff & (int)(z2 - z);
}

/*
** Return the length of a string in characters.  Multibyte UTF8 characters
** count as a single character.
*/
static int strlenChar(const char *z){
  int n = 0;
  while( *z ){
    if( (0xc0&*(z++))!=0x80 ) n++;
  }
  return n;
}

/*
** This routine reads a line of text from FILE in, stores
** the text in memory obtained from malloc() and returns a pointer
** to the text.  NULL is returned at end of file, or if malloc()
** fails.
**
** If zLine is not NULL then it is a malloced buffer returned from
** a previous call to this routine that may be reused.
*/
static char *local_getline(char *zLine, FILE *in){
  int nLine = zLine==0 ? 0 : 100;
  int n = 0;

  while( 1 ){
    if( n+100>nLine ){
      nLine = nLine*2 + 100;
      zLine = realloc(zLine, nLine);
      if( zLine==0 ) return 0;
    }
    if( fgets(&zLine[n], nLine - n, in)==0 ){
      if( n==0 ){
        free(zLine);
        return 0;
      }
      zLine[n] = 0;
      break;
    }
    while( zLine[n] ) n++;
    if( n>0 && zLine[n-1]=='\n' ){
      n--;
      if( n>0 && zLine[n-1]=='\r' ) n--;
      zLine[n] = 0;
      break;
    }
  }
#if defined(_WIN32) || defined(WIN32)
  /* For interactive input on Windows systems, translate the
  ** multi-byte characterset characters into UTF-8. */
  if( stdin_is_interactive && in==stdin ){
    char *zTrans = sqlite3_win32_mbcs_to_utf8_v2(zLine, 0);
    if( zTrans ){
      int nTrans = strlen30(zTrans)+1;
      if( nTrans>nLine ){
        zLine = realloc(zLine, nTrans);
        if( zLine==0 ){
          sqlite3_free(zTrans);
          return 0;
        }
      }
      memcpy(zLine, zTrans, nTrans);
      sqlite3_free(zTrans);
    }
  }
#endif /* defined(_WIN32) || defined(WIN32) */
  return zLine;
}

/*
** Retrieve a single line of input text.
**
** If in==0 then read from standard input and prompt before each line.
** If isContinuation is true, then a continuation prompt is appropriate.
** If isContinuation is zero, then the main prompt should be used.
**
** If zPrior is not NULL then it is a buffer from a prior call to this
** routine that can be reused.
**
** The result is stored in space obtained from malloc() and must either
** be freed by the caller or else passed back into this routine via the
** zPrior argument for reuse.
*/
static char *one_input_line(FILE *in, char *zPrior, int isContinuation){
  char *zPrompt;
  char *zResult;
  if( in!=0 ){
    zResult = local_getline(zPrior, in);
  }else{
    zPrompt = isContinuation ? continuePrompt : mainPrompt;
#if SHELL_USE_LOCAL_GETLINE
    printf("%s", zPrompt);
    fflush(stdout);
    zResult = local_getline(zPrior, stdin);
#else
    free(zPrior);
    zResult = shell_readline(zPrompt);
    if( zResult && *zResult ) shell_add_history(zResult);
#endif
  }
  return zResult;
}
/*
** A variable length string to which one can append text.
*/
typedef struct ShellText ShellText;
struct ShellText {
  char *z;
  int n;
  int nAlloc;
};

/*
** Initialize and destroy a ShellText object
*/
static void initText(ShellText *p){
  memset(p, 0, sizeof(*p));
}
static void freeText(ShellText *p){
  free(p->z);
  initText(p);
}

/* zIn is either a pointer to a NULL-terminated string in memory obtained
** from malloc(), or a NULL pointer. The string pointed to by zAppend is
** added to zIn, and the result returned in memory obtained from malloc().
** zIn, if it was not NULL, is freed.
**
** If the third argument, quote, is not '\0', then it is used as a
** quote character for zAppend.
*/
static void appendText(ShellText *p, char const *zAppend, char quote){
  int len;
  int i;
  int nAppend = strlen30(zAppend);

  len = nAppend+p->n+1;
  if( quote ){
    len += 2;
    for(i=0; i<nAppend; i++){
      if( zAppend[i]==quote ) len++;
    }
  }

  if( p->n+len>=p->nAlloc ){
    p->nAlloc = p->nAlloc*2 + len + 20;
    p->z = realloc(p->z, p->nAlloc);
    if( p->z==0 ){
      memset(p, 0, sizeof(*p));
      return;
    }
  }

  if( quote ){
    char *zCsr = p->z+p->n;
    *zCsr++ = quote;
    for(i=0; i<nAppend; i++){
      *zCsr++ = zAppend[i];
      if( zAppend[i]==quote ) *zCsr++ = quote;
    }
    *zCsr++ = quote;
    p->n = (int)(zCsr - p->z);
    *zCsr = '\0';
  }else{
    memcpy(p->z+p->n, zAppend, nAppend);
    p->n += nAppend;
    p->z[p->n] = '\0';
  }
}

/*
** Attempt to determine if identifier zName needs to be quoted, either
** because it contains non-alphanumeric characters, or because it is an
** SQLite keyword.  Be conservative in this estimate:  When in doubt assume
** that quoting is required.
**
** Return '"' if quoting is required.  Return 0 if no quoting is required.
*/
static char quoteChar(const char *zName){
  /* All SQLite keywords, in alphabetical order */
  static const char *azKeywords[] = {
    "ABORT", "ACTION", "ADD", "AFTER", "ALL", "ALTER", "ANALYZE", "AND", "AS",
    "ASC", "ATTACH", "AUTOINCREMENT", "BEFORE", "BEGIN", "BETWEEN", "BY",
    "CASCADE", "CASE", "CAST", "CHECK", "COLLATE", "COLUMN", "COMMIT",
    "CONFLICT", "CONSTRAINT", "CREATE", "CROSS", "CURRENT_DATE",
    "CURRENT_TIME", "CURRENT_TIMESTAMP", "DATABASE", "DEFAULT", "DEFERRABLE",
    "DEFERRED", "DELETE", "DESC", "DETACH", "DISTINCT", "DROP", "EACH",
    "ELSE", "END", "ESCAPE", "EXCEPT", "EXCLUSIVE", "EXISTS", "EXPLAIN",
    "FAIL", "FOR", "FOREIGN", "FROM", "FULL", "GLOB", "GROUP", "HAVING", "IF",
    "IGNORE", "IMMEDIATE", "IN", "INDEX", "INDEXED", "INITIALLY", "INNER",
    "INSERT", "INSTEAD", "INTERSECT", "INTO", "IS", "ISNULL", "JOIN", "KEY",
    "LEFT", "LIKE", "LIMIT", "MATCH", "NATURAL", "NO", "NOT", "NOTNULL",
    "NULL", "OF", "OFFSET", "ON", "OR", "ORDER", "OUTER", "PLAN", "PRAGMA",
    "PRIMARY", "QUERY", "RAISE", "RECURSIVE", "REFERENCES", "REGEXP",
    "REINDEX", "RELEASE", "RENAME", "REPLACE", "RESTRICT", "RIGHT",
    "ROLLBACK", "ROW", "SAVEPOINT", "SELECT", "SET", "TABLE", "TEMP",
    "TEMPORARY", "THEN", "TO", "TRANSACTION", "TRIGGER", "UNION", "UNIQUE",
    "UPDATE", "USING", "VACUUM", "VALUES", "VIEW", "VIRTUAL", "WHEN", "WHERE",
    "WITH", "WITHOUT",
  };
  int i, lwr, upr, mid, c;
  if( !isalpha((unsigned char)zName[0]) && zName[0]!='_' ) return '"';
  for(i=0; zName[i]; i++){
    if( !isalnum((unsigned char)zName[i]) && zName[i]!='_' ) return '"';
  }
  lwr = 0;
  upr = sizeof(azKeywords)/sizeof(azKeywords[0]) - 1;
  while( lwr<=upr ){
    mid = (lwr+upr)/2;
    c = sqlite3_stricmp(azKeywords[mid], zName);
    if( c==0 ) return '"';
    if( c<0 ){
      lwr = mid+1;
    }else{
      upr = mid-1;
    }
  }
  return 0;
}

/*
** SQL function:  shell_add_schema(S,X)
**
** Add the schema name X to the CREATE statement in S and return the result.
** Examples:
**
**    CREATE TABLE t1(x)   ->   CREATE TABLE xyz.t1(x);
**
** Also works on
**
**    CREATE INDEX
**    CREATE UNIQUE INDEX
**    CREATE VIEW
**    CREATE TRIGGER
**    CREATE VIRTUAL TABLE
**
** This UDF is used by the .schema command to insert the schema name of
** attached databases into the middle of the sqlite_master.sql field.
*/
static void shellAddSchemaName(
  sqlite3_context *pCtx,
  int nVal,
  sqlite3_value **apVal
){
  static const char *aPrefix[] = {
     "TABLE",
     "INDEX",
     "UNIQUE INDEX",
     "VIEW",
     "TRIGGER",
     "VIRTUAL TABLE"
  };
  int i = 0;
  const char *zIn = (const char*)sqlite3_value_text(apVal[0]);
  const char *zSchema = (const char*)sqlite3_value_text(apVal[1]);
  assert( nVal==2 );
  if( zIn!=0 && strncmp(zIn, "CREATE ", 7)==0 ){
    for(i=0; i<(int)(sizeof(aPrefix)/sizeof(aPrefix[0])); i++){
      int n = strlen30(aPrefix[i]);
      if( strncmp(zIn+7, aPrefix[i], n)==0 && zIn[n+7]==' ' ){
        char cQuote = quoteChar(zSchema);
        char *z;
        if( cQuote ){
         z = sqlite3_mprintf("%.*s \"%w\".%s", n+7, zIn, zSchema, zIn+n+8);
        }else{
          z = sqlite3_mprintf("%.*s %s.%s", n+7, zIn, zSchema, zIn+n+8);
        }
        sqlite3_result_text(pCtx, z, -1, sqlite3_free);
        return;
      }
    }
  }
  sqlite3_result_value(pCtx, apVal[0]);
}

/*
** The source code for several run-time loadable extensions is inserted
** below by the ../tool/mkshellc.tcl script.  Before processing that included
** code, we need to override some macros to make the included program code
** work here in the middle of this regular program.
*/
#define SQLITE_EXTENSION_INIT1
#define SQLITE_EXTENSION_INIT2(X) (void)(X)

INCLUDE ../ext/misc/shathree.c
INCLUDE ../ext/misc/fileio.c
INCLUDE ../ext/misc/completion.c

#if defined(SQLITE_ENABLE_SESSION)
/*
** State information for a single open session
*/
typedef struct OpenSession OpenSession;
struct OpenSession {
  char *zName;             /* Symbolic name for this session */
  int nFilter;             /* Number of xFilter rejection GLOB patterns */
  char **azFilter;         /* Array of xFilter rejection GLOB patterns */
  sqlite3_session *p;      /* The open session */
};
#endif

/*
** Shell output mode information from before ".explain on",
** saved so that it can be restored by ".explain off"
*/
typedef struct SavedModeInfo SavedModeInfo;
struct SavedModeInfo {
  int valid;          /* Is there legit data in here? */
  int mode;           /* Mode prior to ".explain on" */
  int showHeader;     /* The ".header" setting prior to ".explain on" */
  int colWidth[100];  /* Column widths prior to ".explain on" */
};

/*
** State information about the database connection is contained in an
** instance of the following structure.
*/
typedef struct ShellState ShellState;
struct ShellState {
  sqlite3 *db;           /* The database */
  int autoExplain;       /* Automatically turn on .explain mode */
  int autoEQP;           /* Run EXPLAIN QUERY PLAN prior to seach SQL stmt */
  int statsOn;           /* True to display memory stats before each finalize */
  int scanstatsOn;       /* True to display scan stats before each finalize */
  int outCount;          /* Revert to stdout when reaching zero */
  int cnt;               /* Number of records displayed so far */
  FILE *out;             /* Write results here */
  FILE *traceOut;        /* Output for sqlite3_trace() */
  int nErr;              /* Number of errors seen */
  int mode;              /* An output mode setting */
  int cMode;             /* temporary output mode for the current query */
  int normalMode;        /* Output mode before ".explain on" */
  int writableSchema;    /* True if PRAGMA writable_schema=ON */
  int showHeader;        /* True to show column names in List or Column mode */
  int nCheck;            /* Number of ".check" commands run */
  unsigned shellFlgs;    /* Various flags */
  char *zDestTable;      /* Name of destination table when MODE_Insert */
  char zTestcase[30];    /* Name of current test case */
  char colSeparator[20]; /* Column separator character for several modes */
  char rowSeparator[20]; /* Row separator character for MODE_Ascii */
  int colWidth[100];     /* Requested width of each column when in column mode*/
  int actualWidth[100];  /* Actual width of each column */
  char nullValue[20];    /* The text to print when a NULL comes back from
                         ** the database */
  char outfile[FILENAME_MAX]; /* Filename for *out */
  const char *zDbFilename;    /* name of the database file */
  char *zFreeOnClose;         /* Filename to free when closing */
  const char *zVfs;           /* Name of VFS to use */
  sqlite3_stmt *pStmt;   /* Current statement if any. */
  FILE *pLog;            /* Write log output here */
  int *aiIndent;         /* Array of indents used in MODE_Explain */
  int nIndent;           /* Size of array aiIndent[] */
  int iIndent;           /* Index of current op in aiIndent[] */
#if defined(SQLITE_ENABLE_SESSION)
  int nSession;             /* Number of active sessions */
  OpenSession aSession[4];  /* Array of sessions.  [0] is in focus. */
#endif
};

/*
** These are the allowed shellFlgs values
*/
#define SHFLG_Scratch        0x00000001 /* The --scratch option is used */
#define SHFLG_Pagecache      0x00000002 /* The --pagecache option is used */
#define SHFLG_Lookaside      0x00000004 /* Lookaside memory is used */
#define SHFLG_Backslash      0x00000008 /* The --backslash option is used */
#define SHFLG_PreserveRowid  0x00000010 /* .dump preserves rowid values */
#define SHFLG_Newlines       0x00000020 /* .dump --newline flag */
#define SHFLG_CountChanges   0x00000040 /* .changes setting */
#define SHFLG_Echo           0x00000080 /* .echo or --echo setting */

/*
** Macros for testing and setting shellFlgs
*/
#define ShellHasFlag(P,X)    (((P)->shellFlgs & (X))!=0)
#define ShellSetFlag(P,X)    ((P)->shellFlgs|=(X))
#define ShellClearFlag(P,X)  ((P)->shellFlgs&=(~(X)))

/*
** These are the allowed modes.
*/
#define MODE_Line     0  /* One column per line.  Blank line between records */
#define MODE_Column   1  /* One record per line in neat columns */
#define MODE_List     2  /* One record per line with a separator */
#define MODE_Semi     3  /* Same as MODE_List but append ";" to each line */
#define MODE_Html     4  /* Generate an XHTML table */
#define MODE_Insert   5  /* Generate SQL "insert" statements */
#define MODE_Quote    6  /* Quote values as for SQL */
#define MODE_Tcl      7  /* Generate ANSI-C or TCL quoted elements */
#define MODE_Csv      8  /* Quote strings, numbers are plain */
#define MODE_Explain  9  /* Like MODE_Column, but do not truncate data */
#define MODE_Ascii   10  /* Use ASCII unit and record separators (0x1F/0x1E) */
#define MODE_Pretty  11  /* Pretty-print schemas */

static const char *modeDescr[] = {
  "line",
  "column",
  "list",
  "semi",
  "html",
  "insert",
  "quote",
  "tcl",
  "csv",
  "explain",
  "ascii",
  "prettyprint",
};

/*
** These are the column/row/line separators used by the various
** import/export modes.
*/
#define SEP_Column    "|"
#define SEP_Row       "\n"
#define SEP_Tab       "\t"
#define SEP_Space     " "
#define SEP_Comma     ","
#define SEP_CrLf      "\r\n"
#define SEP_Unit      "\x1F"
#define SEP_Record    "\x1E"

/*
** Number of elements in an array
*/
#define ArraySize(X)  (int)(sizeof(X)/sizeof(X[0]))

/*
** A callback for the sqlite3_log() interface.
*/
static void shellLog(void *pArg, int iErrCode, const char *zMsg){
  ShellState *p = (ShellState*)pArg;
  if( p->pLog==0 ) return;
  utf8_printf(p->pLog, "(%d) %s\n", iErrCode, zMsg);
  fflush(p->pLog);
}

/*
** Output the given string as a hex-encoded blob (eg. X'1234' )
*/
static void output_hex_blob(FILE *out, const void *pBlob, int nBlob){
  int i;
  char *zBlob = (char *)pBlob;
  raw_printf(out,"X'");
  for(i=0; i<nBlob; i++){ raw_printf(out,"%02x",zBlob[i]&0xff); }
  raw_printf(out,"'");
}

/*
** Find a string that is not found anywhere in z[].  Return a pointer
** to that string.
**
** Try to use zA and zB first.  If both of those are already found in z[]
** then make up some string and store it in the buffer zBuf.
*/
static const char *unused_string(
  const char *z,                    /* Result must not appear anywhere in z */
  const char *zA, const char *zB,   /* Try these first */
  char *zBuf                        /* Space to store a generated string */
){
  unsigned i = 0;
  if( strstr(z, zA)==0 ) return zA;
  if( strstr(z, zB)==0 ) return zB;
  do{
    sqlite3_snprintf(20,zBuf,"(%s%u)", zA, i++);
  }while( strstr(z,zBuf)!=0 );
  return zBuf;
}

/*
** Output the given string as a quoted string using SQL quoting conventions.
**
** See also: output_quoted_escaped_string()
*/
static void output_quoted_string(FILE *out, const char *z){
  int i;
  char c;
  setBinaryMode(out, 1);
  for(i=0; (c = z[i])!=0 && c!='\''; i++){}
  if( c==0 ){
    utf8_printf(out,"'%s'",z);
  }else{
    raw_printf(out, "'");
    while( *z ){
      for(i=0; (c = z[i])!=0 && c!='\''; i++){}
      if( c=='\'' ) i++;
      if( i ){
        utf8_printf(out, "%.*s", i, z);
        z += i;
      }
      if( c=='\'' ){
        raw_printf(out, "'");
        continue;
      }
      if( c==0 ){
        break;
      }
      z++;
    }
    raw_printf(out, "'");
  }
  setTextMode(out, 1);
}

/*
** Output the given string as a quoted string using SQL quoting conventions.
** Additionallly , escape the "\n" and "\r" characters so that they do not
** get corrupted by end-of-line translation facilities in some operating
** systems.
**
** This is like output_quoted_string() but with the addition of the \r\n
** escape mechanism.
*/
static void output_quoted_escaped_string(FILE *out, const char *z){
  int i;
  char c;
  setBinaryMode(out, 1);
  for(i=0; (c = z[i])!=0 && c!='\'' && c!='\n' && c!='\r'; i++){}
  if( c==0 ){
    utf8_printf(out,"'%s'",z);
  }else{
    const char *zNL = 0;
    const char *zCR = 0;
    int nNL = 0;
    int nCR = 0;
    char zBuf1[20], zBuf2[20];
    for(i=0; z[i]; i++){
      if( z[i]=='\n' ) nNL++;
      if( z[i]=='\r' ) nCR++;
    }
    if( nNL ){
      raw_printf(out, "replace(");
      zNL = unused_string(z, "\\n", "\\012", zBuf1);
    }
    if( nCR ){
      raw_printf(out, "replace(");
      zCR = unused_string(z, "\\r", "\\015", zBuf2);
    }
    raw_printf(out, "'");
    while( *z ){
      for(i=0; (c = z[i])!=0 && c!='\n' && c!='\r' && c!='\''; i++){}
      if( c=='\'' ) i++;
      if( i ){
        utf8_printf(out, "%.*s", i, z);
        z += i;
      }
      if( c=='\'' ){
        raw_printf(out, "'");
        continue;
      }
      if( c==0 ){
        break;
      }
      z++;
      if( c=='\n' ){
        raw_printf(out, "%s", zNL);
        continue;
      }
      raw_printf(out, "%s", zCR);
    }
    raw_printf(out, "'");
    if( nCR ){
      raw_printf(out, ",'%s',char(13))", zCR);
    }
    if( nNL ){
      raw_printf(out, ",'%s',char(10))", zNL);
    }
  }
  setTextMode(out, 1);
}

/*
** Output the given string as a quoted according to C or TCL quoting rules.
*/
static void output_c_string(FILE *out, const char *z){
  unsigned int c;
  fputc('"', out);
  while( (c = *(z++))!=0 ){
    if( c=='\\' ){
      fputc(c, out);
      fputc(c, out);
    }else if( c=='"' ){
      fputc('\\', out);
      fputc('"', out);
    }else if( c=='\t' ){
      fputc('\\', out);
      fputc('t', out);
    }else if( c=='\n' ){
      fputc('\\', out);
      fputc('n', out);
    }else if( c=='\r' ){
      fputc('\\', out);
      fputc('r', out);
    }else if( !isprint(c&0xff) ){
      raw_printf(out, "\\%03o", c&0xff);
    }else{
      fputc(c, out);
    }
  }
  fputc('"', out);
}

/*
** Output the given string with characters that are special to
** HTML escaped.
*/
static void output_html_string(FILE *out, const char *z){
  int i;
  if( z==0 ) z = "";
  while( *z ){
    for(i=0;   z[i]
            && z[i]!='<'
            && z[i]!='&'
            && z[i]!='>'
            && z[i]!='\"'
            && z[i]!='\'';
        i++){}
    if( i>0 ){
      utf8_printf(out,"%.*s",i,z);
    }
    if( z[i]=='<' ){
      raw_printf(out,"&lt;");
    }else if( z[i]=='&' ){
      raw_printf(out,"&amp;");
    }else if( z[i]=='>' ){
      raw_printf(out,"&gt;");
    }else if( z[i]=='\"' ){
      raw_printf(out,"&quot;");
    }else if( z[i]=='\'' ){
      raw_printf(out,"&#39;");
    }else{
      break;
    }
    z += i + 1;
  }
}

/*
** If a field contains any character identified by a 1 in the following
** array, then the string must be quoted for CSV.
*/
static const char needCsvQuote[] = {
  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
  1, 0, 1, 0, 0, 0, 0, 1,   0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 1,
  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
};

/*
** Output a single term of CSV.  Actually, p->colSeparator is used for
** the separator, which may or may not be a comma.  p->nullValue is
** the null value.  Strings are quoted if necessary.  The separator
** is only issued if bSep is true.
*/
static void output_csv(ShellState *p, const char *z, int bSep){
  FILE *out = p->out;
  if( z==0 ){
    utf8_printf(out,"%s",p->nullValue);
  }else{
    int i;
    int nSep = strlen30(p->colSeparator);
    for(i=0; z[i]; i++){
      if( needCsvQuote[((unsigned char*)z)[i]]
         || (z[i]==p->colSeparator[0] &&
             (nSep==1 || memcmp(z, p->colSeparator, nSep)==0)) ){
        i = 0;
        break;
      }
    }
    if( i==0 ){
      putc('"', out);
      for(i=0; z[i]; i++){
        if( z[i]=='"' ) putc('"', out);
        putc(z[i], out);
      }
      putc('"', out);
    }else{
      utf8_printf(out, "%s", z);
    }
  }
  if( bSep ){
    utf8_printf(p->out, "%s", p->colSeparator);
  }
}

#ifdef SIGINT
/*
** This routine runs when the user presses Ctrl-C
*/
static void interrupt_handler(int NotUsed){
  UNUSED_PARAMETER(NotUsed);
  seenInterrupt++;
  if( seenInterrupt>2 ) exit(1);
  if( globalDb ) sqlite3_interrupt(globalDb);
}
#endif

#ifndef SQLITE_OMIT_AUTHORIZATION
/*
** When the ".auth ON" is set, the following authorizer callback is
** invoked.  It always returns SQLITE_OK.
*/
static int shellAuth(
  void *pClientData,
  int op,
  const char *zA1,
  const char *zA2,
  const char *zA3,
  const char *zA4
){
  ShellState *p = (ShellState*)pClientData;
  static const char *azAction[] = { 0,
     "CREATE_INDEX",         "CREATE_TABLE",         "CREATE_TEMP_INDEX",
     "CREATE_TEMP_TABLE",    "CREATE_TEMP_TRIGGER",  "CREATE_TEMP_VIEW",
     "CREATE_TRIGGER",       "CREATE_VIEW",          "DELETE",
     "DROP_INDEX",           "DROP_TABLE",           "DROP_TEMP_INDEX",
     "DROP_TEMP_TABLE",      "DROP_TEMP_TRIGGER",    "DROP_TEMP_VIEW",
     "DROP_TRIGGER",         "DROP_VIEW",            "INSERT",
     "PRAGMA",               "READ",                 "SELECT",
     "TRANSACTION",          "UPDATE",               "ATTACH",
     "DETACH",               "ALTER_TABLE",          "REINDEX",
     "ANALYZE",              "CREATE_VTABLE",        "DROP_VTABLE",
     "FUNCTION",             "SAVEPOINT",            "RECURSIVE"
  };
  int i;
  const char *az[4];
  az[0] = zA1;
  az[1] = zA2;
  az[2] = zA3;
  az[3] = zA4;
  utf8_printf(p->out, "authorizer: %s", azAction[op]);
  for(i=0; i<4; i++){
    raw_printf(p->out, " ");
    if( az[i] ){
      output_c_string(p->out, az[i]);
    }else{
      raw_printf(p->out, "NULL");
    }
  }
  raw_printf(p->out, "\n");
  return SQLITE_OK;
}
#endif

/*
** Print a schema statement.  Part of MODE_Semi and MODE_Pretty output.
**
** This routine converts some CREATE TABLE statements for shadow tables
** in FTS3/4/5 into CREATE TABLE IF NOT EXISTS statements.
*/
static void printSchemaLine(FILE *out, const char *z, const char *zTail){
  if( sqlite3_strglob("CREATE TABLE ['\"]*", z)==0 ){
    utf8_printf(out, "CREATE TABLE IF NOT EXISTS %s%s", z+13, zTail);
  }else{
    utf8_printf(out, "%s%s", z, zTail);
  }
}
static void printSchemaLineN(FILE *out, char *z, int n, const char *zTail){
  char c = z[n];
  z[n] = 0;
  printSchemaLine(out, z, zTail);
  z[n] = c;
}

/*
** This is the callback routine that the shell
** invokes for each row of a query result.
*/
static int shell_callback(
  void *pArg,
  int nArg,        /* Number of result columns */
  char **azArg,    /* Text of each result column */
  char **azCol,    /* Column names */
  int *aiType      /* Column types */
){
  int i;
  ShellState *p = (ShellState*)pArg;

  switch( p->cMode ){
    case MODE_Line: {
      int w = 5;
      if( azArg==0 ) break;
      for(i=0; i<nArg; i++){
        int len = strlen30(azCol[i] ? azCol[i] : "");
        if( len>w ) w = len;
      }
      if( p->cnt++>0 ) utf8_printf(p->out, "%s", p->rowSeparator);
      for(i=0; i<nArg; i++){
        utf8_printf(p->out,"%*s = %s%s", w, azCol[i],
                azArg[i] ? azArg[i] : p->nullValue, p->rowSeparator);
      }
      break;
    }
    case MODE_Explain:
    case MODE_Column: {
      static const int aExplainWidths[] = {4, 13, 4, 4, 4, 13, 2, 13};
      const int *colWidth;
      int showHdr;
      char *rowSep;
      if( p->cMode==MODE_Column ){
        colWidth = p->colWidth;
        showHdr = p->showHeader;
        rowSep = p->rowSeparator;
      }else{
        colWidth = aExplainWidths;
        showHdr = 1;
        rowSep = SEP_Row;
      }
      if( p->cnt++==0 ){
        for(i=0; i<nArg; i++){
          int w, n;
          if( i<ArraySize(p->colWidth) ){
            w = colWidth[i];
          }else{
            w = 0;
          }
          if( w==0 ){
            w = strlenChar(azCol[i] ? azCol[i] : "");
            if( w<10 ) w = 10;
            n = strlenChar(azArg && azArg[i] ? azArg[i] : p->nullValue);
            if( w<n ) w = n;
          }
          if( i<ArraySize(p->actualWidth) ){
            p->actualWidth[i] = w;
          }
          if( showHdr ){
            utf8_width_print(p->out, w, azCol[i]);
            utf8_printf(p->out, "%s", i==nArg-1 ? rowSep : "  ");
          }
        }
        if( showHdr ){
          for(i=0; i<nArg; i++){
            int w;
            if( i<ArraySize(p->actualWidth) ){
               w = p->actualWidth[i];
               if( w<0 ) w = -w;
            }else{
               w = 10;
            }
            utf8_printf(p->out,"%-*.*s%s",w,w,
                   "----------------------------------------------------------"
                   "----------------------------------------------------------",
                    i==nArg-1 ? rowSep : "  ");
          }
        }
      }
      if( azArg==0 ) break;
      for(i=0; i<nArg; i++){
        int w;
        if( i<ArraySize(p->actualWidth) ){
           w = p->actualWidth[i];
        }else{
           w = 10;
        }
        if( p->cMode==MODE_Explain && azArg[i] && strlenChar(azArg[i])>w ){
          w = strlenChar(azArg[i]);
        }
        if( i==1 && p->aiIndent && p->pStmt ){
          if( p->iIndent<p->nIndent ){
            utf8_printf(p->out, "%*.s", p->aiIndent[p->iIndent], "");
          }
          p->iIndent++;
        }
        utf8_width_print(p->out, w, azArg[i] ? azArg[i] : p->nullValue);
        utf8_printf(p->out, "%s", i==nArg-1 ? rowSep : "  ");
      }
      break;
    }
    case MODE_Semi: {   /* .schema and .fullschema output */
      printSchemaLine(p->out, azArg[0], ";\n");
      break;
    }
    case MODE_Pretty: {  /* .schema and .fullschema with --indent */
      char *z;
      int j;
      int nParen = 0;
      char cEnd = 0;
      char c;
      int nLine = 0;
      assert( nArg==1 );
      if( azArg[0]==0 ) break;
      if( sqlite3_strlike("CREATE VIEW%", azArg[0], 0)==0
       || sqlite3_strlike("CREATE TRIG%", azArg[0], 0)==0
      ){
        utf8_printf(p->out, "%s;\n", azArg[0]);
        break;
      }
      z = sqlite3_mprintf("%s", azArg[0]);
      j = 0;
      for(i=0; IsSpace(z[i]); i++){}
      for(; (c = z[i])!=0; i++){
        if( IsSpace(c) ){
          if( IsSpace(z[j-1]) || z[j-1]=='(' ) continue;
        }else if( (c=='(' || c==')') && j>0 && IsSpace(z[j-1]) ){
          j--;
        }
        z[j++] = c;
      }
      while( j>0 && IsSpace(z[j-1]) ){ j--; }
      z[j] = 0;
      if( strlen30(z)>=79 ){
        for(i=j=0; (c = z[i])!=0; i++){
          if( c==cEnd ){
            cEnd = 0;
          }else if( c=='"' || c=='\'' || c=='`' ){
            cEnd = c;
          }else if( c=='[' ){
            cEnd = ']';
          }else if( c=='(' ){
            nParen++;
          }else if( c==')' ){
            nParen--;
            if( nLine>0 && nParen==0 && j>0 ){
              printSchemaLineN(p->out, z, j, "\n");
              j = 0;
            }
          }
          z[j++] = c;
          if( nParen==1 && (c=='(' || c==',' || c=='\n') ){
            if( c=='\n' ) j--;
            printSchemaLineN(p->out, z, j, "\n  ");
            j = 0;
            nLine++;
            while( IsSpace(z[i+1]) ){ i++; }
          }
        }
        z[j] = 0;
      }
      printSchemaLine(p->out, z, ";\n");
      sqlite3_free(z);
      break;
    }
    case MODE_List: {
      if( p->cnt++==0 && p->showHeader ){
        for(i=0; i<nArg; i++){
          utf8_printf(p->out,"%s%s",azCol[i],
                  i==nArg-1 ? p->rowSeparator : p->colSeparator);
        }
      }
      if( azArg==0 ) break;
      for(i=0; i<nArg; i++){
        char *z = azArg[i];
        if( z==0 ) z = p->nullValue;
        utf8_printf(p->out, "%s", z);
        if( i<nArg-1 ){
          utf8_printf(p->out, "%s", p->colSeparator);
        }else{
          utf8_printf(p->out, "%s", p->rowSeparator);
        }
      }
      break;
    }
    case MODE_Html: {
      if( p->cnt++==0 && p->showHeader ){
        raw_printf(p->out,"<TR>");
        for(i=0; i<nArg; i++){
          raw_printf(p->out,"<TH>");
          output_html_string(p->out, azCol[i]);
          raw_printf(p->out,"</TH>\n");
        }
        raw_printf(p->out,"</TR>\n");
      }
      if( azArg==0 ) break;
      raw_printf(p->out,"<TR>");
      for(i=0; i<nArg; i++){
        raw_printf(p->out,"<TD>");
        output_html_string(p->out, azArg[i] ? azArg[i] : p->nullValue);
        raw_printf(p->out,"</TD>\n");
      }
      raw_printf(p->out,"</TR>\n");
      break;
    }
    case MODE_Tcl: {
      if( p->cnt++==0 && p->showHeader ){
        for(i=0; i<nArg; i++){
          output_c_string(p->out,azCol[i] ? azCol[i] : "");
          if(i<nArg-1) utf8_printf(p->out, "%s", p->colSeparator);
        }
        utf8_printf(p->out, "%s", p->rowSeparator);
      }
      if( azArg==0 ) break;
      for(i=0; i<nArg; i++){
        output_c_string(p->out, azArg[i] ? azArg[i] : p->nullValue);
        if(i<nArg-1) utf8_printf(p->out, "%s", p->colSeparator);
      }
      utf8_printf(p->out, "%s", p->rowSeparator);
      break;
    }
    case MODE_Csv: {
      setBinaryMode(p->out, 1);
      if( p->cnt++==0 && p->showHeader ){
        for(i=0; i<nArg; i++){
          output_csv(p, azCol[i] ? azCol[i] : "", i<nArg-1);
        }
        utf8_printf(p->out, "%s", p->rowSeparator);
      }
      if( nArg>0 ){
        for(i=0; i<nArg; i++){
          output_csv(p, azArg[i], i<nArg-1);
        }
        utf8_printf(p->out, "%s", p->rowSeparator);
      }
      setTextMode(p->out, 1);
      break;
    }
    case MODE_Insert: {
      if( azArg==0 ) break;
      utf8_printf(p->out,"INSERT INTO %s",p->zDestTable);
      if( p->showHeader ){
        raw_printf(p->out,"(");
        for(i=0; i<nArg; i++){
          if( i>0 ) raw_printf(p->out, ",");
          if( quoteChar(azCol[i]) ){
            char *z = sqlite3_mprintf("\"%w\"", azCol[i]);
            utf8_printf(p->out, "%s", z);
            sqlite3_free(z);
          }else{
            raw_printf(p->out, "%s", azCol[i]);
          }
        }
        raw_printf(p->out,")");
      }
      p->cnt++;
      for(i=0; i<nArg; i++){
        raw_printf(p->out, i>0 ? "," : " VALUES(");
        if( (azArg[i]==0) || (aiType && aiType[i]==SQLITE_NULL) ){
          utf8_printf(p->out,"NULL");
        }else if( aiType && aiType[i]==SQLITE_TEXT ){
          if( ShellHasFlag(p, SHFLG_Newlines) ){
            output_quoted_string(p->out, azArg[i]);
          }else{
            output_quoted_escaped_string(p->out, azArg[i]);
          }
        }else if( aiType && aiType[i]==SQLITE_INTEGER ){
          utf8_printf(p->out,"%s", azArg[i]);
        }else if( aiType && aiType[i]==SQLITE_FLOAT ){
          char z[50];
          double r = sqlite3_column_double(p->pStmt, i);
          sqlite3_snprintf(50,z,"%!.20g", r);
          raw_printf(p->out, "%s", z);
        }else if( aiType && aiType[i]==SQLITE_BLOB && p->pStmt ){
          const void *pBlob = sqlite3_column_blob(p->pStmt, i);
          int nBlob = sqlite3_column_bytes(p->pStmt, i);
          output_hex_blob(p->out, pBlob, nBlob);
        }else if( isNumber(azArg[i], 0) ){
          utf8_printf(p->out,"%s", azArg[i]);
        }else if( ShellHasFlag(p, SHFLG_Newlines) ){
          output_quoted_string(p->out, azArg[i]);
        }else{
          output_quoted_escaped_string(p->out, azArg[i]);
        }
      }
      raw_printf(p->out,");\n");
      break;
    }
    case MODE_Quote: {
      if( azArg==0 ) break;
      if( p->cnt==0 && p->showHeader ){
        for(i=0; i<nArg; i++){
          if( i>0 ) raw_printf(p->out, ",");
          output_quoted_string(p->out, azCol[i]);
        }
        raw_printf(p->out,"\n");
      }
      p->cnt++;
      for(i=0; i<nArg; i++){
        if( i>0 ) raw_printf(p->out, ",");
        if( (azArg[i]==0) || (aiType && aiType[i]==SQLITE_NULL) ){
          utf8_printf(p->out,"NULL");
        }else if( aiType && aiType[i]==SQLITE_TEXT ){
          output_quoted_string(p->out, azArg[i]);
        }else if( aiType && aiType[i]==SQLITE_INTEGER ){
          utf8_printf(p->out,"%s", azArg[i]);
        }else if( aiType && aiType[i]==SQLITE_FLOAT ){
          char z[50];
          double r = sqlite3_column_double(p->pStmt, i);
          sqlite3_snprintf(50,z,"%!.20g", r);
          raw_printf(p->out, "%s", z);
        }else if( aiType && aiType[i]==SQLITE_BLOB && p->pStmt ){
          const void *pBlob = sqlite3_column_blob(p->pStmt, i);
          int nBlob = sqlite3_column_bytes(p->pStmt, i);
          output_hex_blob(p->out, pBlob, nBlob);
        }else if( isNumber(azArg[i], 0) ){
          utf8_printf(p->out,"%s", azArg[i]);
        }else{
          output_quoted_string(p->out, azArg[i]);
        }
      }
      raw_printf(p->out,"\n");
      break;
    }
    case MODE_Ascii: {
      if( p->cnt++==0 && p->showHeader ){
        for(i=0; i<nArg; i++){
          if( i>0 ) utf8_printf(p->out, "%s", p->colSeparator);
          utf8_printf(p->out,"%s",azCol[i] ? azCol[i] : "");
        }
        utf8_printf(p->out, "%s", p->rowSeparator);
      }
      if( azArg==0 ) break;
      for(i=0; i<nArg; i++){
        if( i>0 ) utf8_printf(p->out, "%s", p->colSeparator);
        utf8_printf(p->out,"%s",azArg[i] ? azArg[i] : p->nullValue);
      }
      utf8_printf(p->out, "%s", p->rowSeparator);
      break;
    }
  }
  return 0;
}

/*
** This is the callback routine that the SQLite library
** invokes for each row of a query result.
*/
static int callback(void *pArg, int nArg, char **azArg, char **azCol){
  /* since we don't have type info, call the shell_callback with a NULL value */
  return shell_callback(pArg, nArg, azArg, azCol, NULL);
}

/*
** This is the callback routine from sqlite3_exec() that appends all
** output onto the end of a ShellText object.
*/
static int captureOutputCallback(void *pArg, int nArg, char **azArg, char **az){
  ShellText *p = (ShellText*)pArg;
  int i;
  UNUSED_PARAMETER(az);
  if( p->n ) appendText(p, "|", 0);
  for(i=0; i<nArg; i++){
    if( i ) appendText(p, ",", 0);
    if( azArg[i] ) appendText(p, azArg[i], 0);
  }
  return 0;
}

/*
** Generate an appropriate SELFTEST table in the main database.
*/
static void createSelftestTable(ShellState *p){
  char *zErrMsg = 0;
  sqlite3_exec(p->db,
    "SAVEPOINT selftest_init;\n"
    "CREATE TABLE IF NOT EXISTS selftest(\n"
    "  tno INTEGER PRIMARY KEY,\n"   /* Test number */
    "  op TEXT,\n"                   /* Operator:  memo run */
    "  cmd TEXT,\n"                  /* Command text */
    "  ans TEXT\n"                   /* Desired answer */
    ");"
    "CREATE TEMP TABLE [_shell$self](op,cmd,ans);\n"
    "INSERT INTO [_shell$self](rowid,op,cmd)\n"
    "  VALUES(coalesce((SELECT (max(tno)+100)/10 FROM selftest),10),\n"
    "         'memo','Tests generated by --init');\n"
    "INSERT INTO [_shell$self]\n"
    "  SELECT 'run',\n"
    "    'SELECT hex(sha3_query(''SELECT type,name,tbl_name,sql "
                                 "FROM sqlite_master ORDER BY 2'',224))',\n"
    "    hex(sha3_query('SELECT type,name,tbl_name,sql "
                          "FROM sqlite_master ORDER BY 2',224));\n"
    "INSERT INTO [_shell$self]\n"
    "  SELECT 'run',"
    "    'SELECT hex(sha3_query(''SELECT * FROM \"' ||"
    "        printf('%w',name) || '\" NOT INDEXED'',224))',\n"
    "    hex(sha3_query(printf('SELECT * FROM \"%w\" NOT INDEXED',name),224))\n"
    "  FROM (\n"
    "    SELECT name FROM sqlite_master\n"
    "     WHERE type='table'\n"
    "       AND name<>'selftest'\n"
    "       AND coalesce(rootpage,0)>0\n"
    "  )\n"
    " ORDER BY name;\n"
    "INSERT INTO [_shell$self]\n"
    "  VALUES('run','PRAGMA integrity_check','ok');\n"
    "INSERT INTO selftest(tno,op,cmd,ans)"
    "  SELECT rowid*10,op,cmd,ans FROM [_shell$self];\n"
    "DROP TABLE [_shell$self];"
    ,0,0,&zErrMsg);
  if( zErrMsg ){
    utf8_printf(stderr, "SELFTEST initialization failure: %s\n", zErrMsg);
    sqlite3_free(zErrMsg);
  }
  sqlite3_exec(p->db, "RELEASE selftest_init",0,0,0);
}


/*
** Set the destination table field of the ShellState structure to
** the name of the table given.  Escape any quote characters in the
** table name.
*/
static void set_table_name(ShellState *p, const char *zName){
  int i, n;
  int cQuote;
  char *z;

  if( p->zDestTable ){
    free(p->zDestTable);
    p->zDestTable = 0;
  }
  if( zName==0 ) return;
  cQuote = quoteChar(zName);
  n = strlen30(zName);
  if( cQuote ) n += n+2;
  z = p->zDestTable = malloc( n+1 );
  if( z==0 ){
    raw_printf(stderr,"Error: out of memory\n");
    exit(1);
  }
  n = 0;
  if( cQuote ) z[n++] = cQuote;
  for(i=0; zName[i]; i++){
    z[n++] = zName[i];
    if( zName[i]==cQuote ) z[n++] = cQuote;
  }
  if( cQuote ) z[n++] = cQuote;
  z[n] = 0;
}


/*
** Execute a query statement that will generate SQL output.  Print
** the result columns, comma-separated, on a line and then add a
** semicolon terminator to the end of that line.
**
** If the number of columns is 1 and that column contains text "--"
** then write the semicolon on a separate line.  That way, if a
** "--" comment occurs at the end of the statement, the comment
** won't consume the semicolon terminator.
*/
static int run_table_dump_query(
  ShellState *p,           /* Query context */
  const char *zSelect,     /* SELECT statement to extract content */
  const char *zFirstRow    /* Print before first row, if not NULL */
){
  sqlite3_stmt *pSelect;
  int rc;
  int nResult;
  int i;
  const char *z;
  rc = sqlite3_prepare_v2(p->db, zSelect, -1, &pSelect, 0);
  if( rc!=SQLITE_OK || !pSelect ){
    utf8_printf(p->out, "/**** ERROR: (%d) %s *****/\n", rc,
                sqlite3_errmsg(p->db));
    if( (rc&0xff)!=SQLITE_CORRUPT ) p->nErr++;
    return rc;
  }
  rc = sqlite3_step(pSelect);
  nResult = sqlite3_column_count(pSelect);
  while( rc==SQLITE_ROW ){
    if( zFirstRow ){
      utf8_printf(p->out, "%s", zFirstRow);
      zFirstRow = 0;
    }
    z = (const char*)sqlite3_column_text(pSelect, 0);
    utf8_printf(p->out, "%s", z);
    for(i=1; i<nResult; i++){
      utf8_printf(p->out, ",%s", sqlite3_column_text(pSelect, i));
    }
    if( z==0 ) z = "";
    while( z[0] && (z[0]!='-' || z[1]!='-') ) z++;
    if( z[0] ){
      raw_printf(p->out, "\n;\n");
    }else{
      raw_printf(p->out, ";\n");
    }
    rc = sqlite3_step(pSelect);
  }
  rc = sqlite3_finalize(pSelect);
  if( rc!=SQLITE_OK ){
    utf8_printf(p->out, "/**** ERROR: (%d) %s *****/\n", rc,
                sqlite3_errmsg(p->db));
    if( (rc&0xff)!=SQLITE_CORRUPT ) p->nErr++;
  }
  return rc;
}

/*
** Allocate space and save off current error string.
*/
static char *save_err_msg(
  sqlite3 *db            /* Database to query */
){
  int nErrMsg = 1+strlen30(sqlite3_errmsg(db));
  char *zErrMsg = sqlite3_malloc64(nErrMsg);
  if( zErrMsg ){
    memcpy(zErrMsg, sqlite3_errmsg(db), nErrMsg);
  }
  return zErrMsg;
}

#ifdef __linux__
/*
** Attempt to display I/O stats on Linux using /proc/PID/io
*/
static void displayLinuxIoStats(FILE *out){
  FILE *in;
  char z[200];
  sqlite3_snprintf(sizeof(z), z, "/proc/%d/io", getpid());
  in = fopen(z, "rb");
  if( in==0 ) return;
  while( fgets(z, sizeof(z), in)!=0 ){
    static const struct {
      const char *zPattern;
      const char *zDesc;
    } aTrans[] = {
      { "rchar: ",                  "Bytes received by read():" },
      { "wchar: ",                  "Bytes sent to write():"    },
      { "syscr: ",                  "Read() system calls:"      },
      { "syscw: ",                  "Write() system calls:"     },
      { "read_bytes: ",             "Bytes read from storage:"  },
      { "write_bytes: ",            "Bytes written to storage:" },
      { "cancelled_write_bytes: ",  "Cancelled write bytes:"    },
    };
    int i;
    for(i=0; i<ArraySize(aTrans); i++){
      int n = (int)strlen(aTrans[i].zPattern);
      if( strncmp(aTrans[i].zPattern, z, n)==0 ){
        utf8_printf(out, "%-36s %s", aTrans[i].zDesc, &z[n]);
        break;
      }
    }
  }
  fclose(in);
}
#endif

/*
** Display a single line of status using 64-bit values.
*/
static void displayStatLine(
  ShellState *p,            /* The shell context */
  char *zLabel,             /* Label for this one line */
  char *zFormat,            /* Format for the result */
  int iStatusCtrl,          /* Which status to display */
  int bReset                /* True to reset the stats */
){
  sqlite3_int64 iCur = -1;
  sqlite3_int64 iHiwtr = -1;
  int i, nPercent;
  char zLine[200];
  sqlite3_status64(iStatusCtrl, &iCur, &iHiwtr, bReset);
  for(i=0, nPercent=0; zFormat[i]; i++){
    if( zFormat[i]=='%' ) nPercent++;
  }
  if( nPercent>1 ){
    sqlite3_snprintf(sizeof(zLine), zLine, zFormat, iCur, iHiwtr);
  }else{
    sqlite3_snprintf(sizeof(zLine), zLine, zFormat, iHiwtr);
  }
  raw_printf(p->out, "%-36s %s\n", zLabel, zLine);
}

/*
** Display memory stats.
*/
static int display_stats(
  sqlite3 *db,                /* Database to query */
  ShellState *pArg,           /* Pointer to ShellState */
  int bReset                  /* True to reset the stats */
){
  int iCur;
  int iHiwtr;

  if( pArg && pArg->out ){
    displayStatLine(pArg, "Memory Used:",
       "%lld (max %lld) bytes", SQLITE_STATUS_MEMORY_USED, bReset);
    displayStatLine(pArg, "Number of Outstanding Allocations:",
       "%lld (max %lld)", SQLITE_STATUS_MALLOC_COUNT, bReset);
    if( pArg->shellFlgs & SHFLG_Pagecache ){
      displayStatLine(pArg, "Number of Pcache Pages Used:",
         "%lld (max %lld) pages", SQLITE_STATUS_PAGECACHE_USED, bReset);
    }
    displayStatLine(pArg, "Number of Pcache Overflow Bytes:",
       "%lld (max %lld) bytes", SQLITE_STATUS_PAGECACHE_OVERFLOW, bReset);
    if( pArg->shellFlgs & SHFLG_Scratch ){
      displayStatLine(pArg, "Number of Scratch Allocations Used:",
         "%lld (max %lld)", SQLITE_STATUS_SCRATCH_USED, bReset);
    }
    displayStatLine(pArg, "Number of Scratch Overflow Bytes:",
       "%lld (max %lld) bytes", SQLITE_STATUS_SCRATCH_OVERFLOW, bReset);
    displayStatLine(pArg, "Largest Allocation:",
       "%lld bytes", SQLITE_STATUS_MALLOC_SIZE, bReset);
    displayStatLine(pArg, "Largest Pcache Allocation:",
       "%lld bytes", SQLITE_STATUS_PAGECACHE_SIZE, bReset);
    displayStatLine(pArg, "Largest Scratch Allocation:",
       "%lld bytes", SQLITE_STATUS_SCRATCH_SIZE, bReset);
#ifdef YYTRACKMAXSTACKDEPTH
    displayStatLine(pArg, "Deepest Parser Stack:",
       "%lld (max %lld)", SQLITE_STATUS_PARSER_STACK, bReset);
#endif
  }

  if( pArg && pArg->out && db ){
    if( pArg->shellFlgs & SHFLG_Lookaside ){
      iHiwtr = iCur = -1;
      sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_USED,
                        &iCur, &iHiwtr, bReset);
      raw_printf(pArg->out,
              "Lookaside Slots Used:                %d (max %d)\n",
              iCur, iHiwtr);
      sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_HIT,
                        &iCur, &iHiwtr, bReset);
      raw_printf(pArg->out, "Successful lookaside attempts:       %d\n",
              iHiwtr);
      sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE,
                        &iCur, &iHiwtr, bReset);
      raw_printf(pArg->out, "Lookaside failures due to size:      %d\n",
              iHiwtr);
      sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL,
                        &iCur, &iHiwtr, bReset);
      raw_printf(pArg->out, "Lookaside failures due to OOM:       %d\n",
              iHiwtr);
    }
    iHiwtr = iCur = -1;
    sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_USED, &iCur, &iHiwtr, bReset);
    raw_printf(pArg->out, "Pager Heap Usage:                    %d bytes\n",
            iCur);
    iHiwtr = iCur = -1;
    sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_HIT, &iCur, &iHiwtr, 1);
    raw_printf(pArg->out, "Page cache hits:                     %d\n", iCur);
    iHiwtr = iCur = -1;
    sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_MISS, &iCur, &iHiwtr, 1);
    raw_printf(pArg->out, "Page cache misses:                   %d\n", iCur);
    iHiwtr = iCur = -1;
    sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_WRITE, &iCur, &iHiwtr, 1);
    raw_printf(pArg->out, "Page cache writes:                   %d\n", iCur);
    iHiwtr = iCur = -1;
    sqlite3_db_status(db, SQLITE_DBSTATUS_SCHEMA_USED, &iCur, &iHiwtr, bReset);
    raw_printf(pArg->out, "Schema Heap Usage:                   %d bytes\n",
            iCur);
    iHiwtr = iCur = -1;
    sqlite3_db_status(db, SQLITE_DBSTATUS_STMT_USED, &iCur, &iHiwtr, bReset);
    raw_printf(pArg->out, "Statement Heap/Lookaside Usage:      %d bytes\n",
            iCur);
  }

  if( pArg && pArg->out && db && pArg->pStmt ){
    iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_FULLSCAN_STEP,
                               bReset);
    raw_printf(pArg->out, "Fullscan Steps:                      %d\n", iCur);
    iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_SORT, bReset);
    raw_printf(pArg->out, "Sort Operations:                     %d\n", iCur);
    iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_AUTOINDEX,bReset);
    raw_printf(pArg->out, "Autoindex Inserts:                   %d\n", iCur);
    iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_VM_STEP, bReset);
    raw_printf(pArg->out, "Virtual Machine Steps:               %d\n", iCur);
  }

#ifdef __linux__
  displayLinuxIoStats(pArg->out);
#endif

  /* Do not remove this machine readable comment: extra-stats-output-here */

  return 0;
}

/*
** Display scan stats.
*/
static void display_scanstats(
  sqlite3 *db,                    /* Database to query */
  ShellState *pArg                /* Pointer to ShellState */
){
#ifndef SQLITE_ENABLE_STMT_SCANSTATUS
  UNUSED_PARAMETER(db);
  UNUSED_PARAMETER(pArg);
#else
  int i, k, n, mx;
  raw_printf(pArg->out, "-------- scanstats --------\n");
  mx = 0;
  for(k=0; k<=mx; k++){
    double rEstLoop = 1.0;
    for(i=n=0; 1; i++){
      sqlite3_stmt *p = pArg->pStmt;
      sqlite3_int64 nLoop, nVisit;
      double rEst;
      int iSid;
      const char *zExplain;
      if( sqlite3_stmt_scanstatus(p, i, SQLITE_SCANSTAT_NLOOP, (void*)&nLoop) ){
        break;
      }
      sqlite3_stmt_scanstatus(p, i, SQLITE_SCANSTAT_SELECTID, (void*)&iSid);
      if( iSid>mx ) mx = iSid;
      if( iSid!=k ) continue;
      if( n==0 ){
        rEstLoop = (double)nLoop;
        if( k>0 ) raw_printf(pArg->out, "-------- subquery %d -------\n", k);
      }
      n++;
      sqlite3_stmt_scanstatus(p, i, SQLITE_SCANSTAT_NVISIT, (void*)&nVisit);
      sqlite3_stmt_scanstatus(p, i, SQLITE_SCANSTAT_EST, (void*)&rEst);
      sqlite3_stmt_scanstatus(p, i, SQLITE_SCANSTAT_EXPLAIN, (void*)&zExplain);
      utf8_printf(pArg->out, "Loop %2d: %s\n", n, zExplain);
      rEstLoop *= rEst;
      raw_printf(pArg->out,
          "         nLoop=%-8lld nRow=%-8lld estRow=%-8lld estRow/Loop=%-8g\n",
          nLoop, nVisit, (sqlite3_int64)(rEstLoop+0.5), rEst
      );
    }
  }
  raw_printf(pArg->out, "---------------------------\n");
#endif
}

/*
** Parameter azArray points to a zero-terminated array of strings. zStr
** points to a single nul-terminated string. Return non-zero if zStr
** is equal, according to strcmp(), to any of the strings in the array.
** Otherwise, return zero.
*/
static int str_in_array(const char *zStr, const char **azArray){
  int i;
  for(i=0; azArray[i]; i++){
    if( 0==strcmp(zStr, azArray[i]) ) return 1;
  }
  return 0;
}

/*
** If compiled statement pSql appears to be an EXPLAIN statement, allocate
** and populate the ShellState.aiIndent[] array with the number of
** spaces each opcode should be indented before it is output.
**
** The indenting rules are:
**
**     * For each "Next", "Prev", "VNext" or "VPrev" instruction, indent
**       all opcodes that occur between the p2 jump destination and the opcode
**       itself by 2 spaces.
**
**     * For each "Goto", if the jump destination is earlier in the program
**       and ends on one of:
**          Yield  SeekGt  SeekLt  RowSetRead  Rewind
**       or if the P1 parameter is one instead of zero,
**       then indent all opcodes between the earlier instruction
**       and "Goto" by 2 spaces.
*/
static void explain_data_prepare(ShellState *p, sqlite3_stmt *pSql){
  const char *zSql;               /* The text of the SQL statement */
  const char *z;                  /* Used to check if this is an EXPLAIN */
  int *abYield = 0;               /* True if op is an OP_Yield */
  int nAlloc = 0;                 /* Allocated size of p->aiIndent[], abYield */
  int iOp;                        /* Index of operation in p->aiIndent[] */

  const char *azNext[] = { "Next", "Prev", "VPrev", "VNext", "SorterNext",
                           "NextIfOpen", "PrevIfOpen", 0 };
  const char *azYield[] = { "Yield", "SeekLT", "SeekGT", "RowSetRead",
                            "Rewind", 0 };
  const char *azGoto[] = { "Goto", 0 };

  /* Try to figure out if this is really an EXPLAIN statement. If this
  ** cannot be verified, return early.  */
  if( sqlite3_column_count(pSql)!=8 ){
    p->cMode = p->mode;
    return;
  }
  zSql = sqlite3_sql(pSql);
  if( zSql==0 ) return;
  for(z=zSql; *z==' ' || *z=='\t' || *z=='\n' || *z=='\f' || *z=='\r'; z++);
  if( sqlite3_strnicmp(z, "explain", 7) ){
    p->cMode = p->mode;
    return;
  }

  for(iOp=0; SQLITE_ROW==sqlite3_step(pSql); iOp++){
    int i;
    int iAddr = sqlite3_column_int(pSql, 0);
    const char *zOp = (const char*)sqlite3_column_text(pSql, 1);

    /* Set p2 to the P2 field of the current opcode. Then, assuming that
    ** p2 is an instruction address, set variable p2op to the index of that
    ** instruction in the aiIndent[] array. p2 and p2op may be different if
    ** the current instruction is part of a sub-program generated by an
    ** SQL trigger or foreign key.  */
    int p2 = sqlite3_column_int(pSql, 3);
    int p2op = (p2 + (iOp-iAddr));

    /* Grow the p->aiIndent array as required */
    if( iOp>=nAlloc ){
      if( iOp==0 ){
        /* Do further verfication that this is explain output.  Abort if
        ** it is not */
        static const char *explainCols[] = {
           "addr", "opcode", "p1", "p2", "p3", "p4", "p5", "comment" };
        int jj;
        for(jj=0; jj<ArraySize(explainCols); jj++){
          if( strcmp(sqlite3_column_name(pSql,jj),explainCols[jj])!=0 ){
            p->cMode = p->mode;
            sqlite3_reset(pSql);
            return;
          }
        }
      }
      nAlloc += 100;
      p->aiIndent = (int*)sqlite3_realloc64(p->aiIndent, nAlloc*sizeof(int));
      abYield = (int*)sqlite3_realloc64(abYield, nAlloc*sizeof(int));
    }
    abYield[iOp] = str_in_array(zOp, azYield);
    p->aiIndent[iOp] = 0;
    p->nIndent = iOp+1;

    if( str_in_array(zOp, azNext) ){
      for(i=p2op; i<iOp; i++) p->aiIndent[i] += 2;
    }
    if( str_in_array(zOp, azGoto) && p2op<p->nIndent
     && (abYield[p2op] || sqlite3_column_int(pSql, 2))
    ){
      for(i=p2op; i<iOp; i++) p->aiIndent[i] += 2;
    }
  }

  p->iIndent = 0;
  sqlite3_free(abYield);
  sqlite3_reset(pSql);
}

/*
** Free the array allocated by explain_data_prepare().
*/
static void explain_data_delete(ShellState *p){
  sqlite3_free(p->aiIndent);
  p->aiIndent = 0;
  p->nIndent = 0;
  p->iIndent = 0;
}

/*
** Disable and restore .wheretrace and .selecttrace settings.
*/
#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_SELECTTRACE)
extern int sqlite3SelectTrace;
static int savedSelectTrace;
#endif
#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE)
extern int sqlite3WhereTrace;
static int savedWhereTrace;
#endif
static void disable_debug_trace_modes(void){
#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_SELECTTRACE)
  savedSelectTrace = sqlite3SelectTrace;
  sqlite3SelectTrace = 0;
#endif
#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE)
  savedWhereTrace = sqlite3WhereTrace;
  sqlite3WhereTrace = 0;
#endif
}
static void restore_debug_trace_modes(void){
#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_SELECTTRACE)
  sqlite3SelectTrace = savedSelectTrace;
#endif
#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE)
  sqlite3WhereTrace = savedWhereTrace;
#endif
}

/*
** Run a prepared statement
*/
static void exec_prepared_stmt(
  ShellState *pArg,                                /* Pointer to ShellState */
  sqlite3_stmt *pStmt,                             /* Statment to run */
  int (*xCallback)(void*,int,char**,char**,int*)   /* Callback function */
){
  int rc;

  /* perform the first step.  this will tell us if we
  ** have a result set or not and how wide it is.
  */
  rc = sqlite3_step(pStmt);
  /* if we have a result set... */
  if( SQLITE_ROW == rc ){
    /* if we have a callback... */
    if( xCallback ){
      /* allocate space for col name ptr, value ptr, and type */
      int nCol = sqlite3_column_count(pStmt);
      void *pData = sqlite3_malloc64(3*nCol*sizeof(const char*) + 1);
      if( !pData ){
        rc = SQLITE_NOMEM;
      }else{
        char **azCols = (char **)pData;      /* Names of result columns */
        char **azVals = &azCols[nCol];       /* Results */
        int *aiTypes = (int *)&azVals[nCol]; /* Result types */
        int i, x;
        assert(sizeof(int) <= sizeof(char *));
        /* save off ptrs to column names */
        for(i=0; i<nCol; i++){
          azCols[i] = (char *)sqlite3_column_name(pStmt, i);
        }
        do{
          /* extract the data and data types */
          for(i=0; i<nCol; i++){
            aiTypes[i] = x = sqlite3_column_type(pStmt, i);
            if( x==SQLITE_BLOB && pArg && pArg->cMode==MODE_Insert ){
              azVals[i] = "";
            }else{
              azVals[i] = (char*)sqlite3_column_text(pStmt, i);
            }
            if( !azVals[i] && (aiTypes[i]!=SQLITE_NULL) ){
              rc = SQLITE_NOMEM;
              break; /* from for */
            }
          } /* end for */

          /* if data and types extracted successfully... */
          if( SQLITE_ROW == rc ){
            /* call the supplied callback with the result row data */
            if( xCallback(pArg, nCol, azVals, azCols, aiTypes) ){
              rc = SQLITE_ABORT;
            }else{
              rc = sqlite3_step(pStmt);
            }
          }
        } while( SQLITE_ROW == rc );
        sqlite3_free(pData);
      }
    }else{
      do{
        rc = sqlite3_step(pStmt);
      } while( rc == SQLITE_ROW );
    }
  }
}

/*
** Execute a statement or set of statements.  Print
** any result rows/columns depending on the current mode
** set via the supplied callback.
**
** This is very similar to SQLite's built-in sqlite3_exec()
** function except it takes a slightly different callback
** and callback data argument.
*/
static int shell_exec(
  sqlite3 *db,                              /* An open database */
  const char *zSql,                         /* SQL to be evaluated */
  int (*xCallback)(void*,int,char**,char**,int*),   /* Callback function */
                                            /* (not the same as sqlite3_exec) */
  ShellState *pArg,                         /* Pointer to ShellState */
  char **pzErrMsg                           /* Error msg written here */
){
  sqlite3_stmt *pStmt = NULL;     /* Statement to execute. */
  int rc = SQLITE_OK;             /* Return Code */
  int rc2;
  const char *zLeftover;          /* Tail of unprocessed SQL */

  if( pzErrMsg ){
    *pzErrMsg = NULL;
  }

  while( zSql[0] && (SQLITE_OK == rc) ){
    static const char *zStmtSql;
    rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, &zLeftover);
    if( SQLITE_OK != rc ){
      if( pzErrMsg ){
        *pzErrMsg = save_err_msg(db);
      }
    }else{
      if( !pStmt ){
        /* this happens for a comment or white-space */
        zSql = zLeftover;
        while( IsSpace(zSql[0]) ) zSql++;
        continue;
      }
      zStmtSql = sqlite3_sql(pStmt);
      if( zStmtSql==0 ) zStmtSql = "";
      while( IsSpace(zStmtSql[0]) ) zStmtSql++;

      /* save off the prepared statment handle and reset row count */
      if( pArg ){
        pArg->pStmt = pStmt;
        pArg->cnt = 0;
      }

      /* echo the sql statement if echo on */
      if( pArg && ShellHasFlag(pArg, SHFLG_Echo) ){
        utf8_printf(pArg->out, "%s\n", zStmtSql ? zStmtSql : zSql);
      }

      /* Show the EXPLAIN QUERY PLAN if .eqp is on */
      if( pArg && pArg->autoEQP && sqlite3_strlike("EXPLAIN%",zStmtSql,0)!=0 ){
        sqlite3_stmt *pExplain;
        char *zEQP;
        disable_debug_trace_modes();
        zEQP = sqlite3_mprintf("EXPLAIN QUERY PLAN %s", zStmtSql);
        rc = sqlite3_prepare_v2(db, zEQP, -1, &pExplain, 0);
        if( rc==SQLITE_OK ){
          while( sqlite3_step(pExplain)==SQLITE_ROW ){
            raw_printf(pArg->out,"--EQP-- %d,",sqlite3_column_int(pExplain, 0));
            raw_printf(pArg->out,"%d,", sqlite3_column_int(pExplain, 1));
            raw_printf(pArg->out,"%d,", sqlite3_column_int(pExplain, 2));
            utf8_printf(pArg->out,"%s\n", sqlite3_column_text(pExplain, 3));
          }
        }
        sqlite3_finalize(pExplain);
        sqlite3_free(zEQP);
        if( pArg->autoEQP>=2 ){
          /* Also do an EXPLAIN for ".eqp full" mode */
          zEQP = sqlite3_mprintf("EXPLAIN %s", zStmtSql);
          rc = sqlite3_prepare_v2(db, zEQP, -1, &pExplain, 0);
          if( rc==SQLITE_OK ){
            pArg->cMode = MODE_Explain;
            explain_data_prepare(pArg, pExplain);
            exec_prepared_stmt(pArg, pExplain, xCallback);
            explain_data_delete(pArg);
          }
          sqlite3_finalize(pExplain);
          sqlite3_free(zEQP);
        }
        restore_debug_trace_modes();
      }

      if( pArg ){
        pArg->cMode = pArg->mode;
        if( pArg->autoExplain
         && sqlite3_column_count(pStmt)==8
         && sqlite3_strlike("EXPLAIN%", zStmtSql,0)==0
        ){
          pArg->cMode = MODE_Explain;
        }

        /* If the shell is currently in ".explain" mode, gather the extra
        ** data required to add indents to the output.*/
        if( pArg->cMode==MODE_Explain ){
          explain_data_prepare(pArg, pStmt);
        }
      }

      exec_prepared_stmt(pArg, pStmt, xCallback);
      explain_data_delete(pArg);

      /* print usage stats if stats on */
      if( pArg && pArg->statsOn ){
        display_stats(db, pArg, 0);
      }

      /* print loop-counters if required */
      if( pArg && pArg->scanstatsOn ){
        display_scanstats(db, pArg);
      }

      /* Finalize the statement just executed. If this fails, save a
      ** copy of the error message. Otherwise, set zSql to point to the
      ** next statement to execute. */
      rc2 = sqlite3_finalize(pStmt);
      if( rc!=SQLITE_NOMEM ) rc = rc2;
      if( rc==SQLITE_OK ){
        zSql = zLeftover;
        while( IsSpace(zSql[0]) ) zSql++;
      }else if( pzErrMsg ){
        *pzErrMsg = save_err_msg(db);
      }

      /* clear saved stmt handle */
      if( pArg ){
        pArg->pStmt = NULL;
      }
    }
  } /* end while */

  return rc;
}

/*
** Release memory previously allocated by tableColumnList().
*/
static void freeColumnList(char **azCol){
  int i;
  for(i=1; azCol[i]; i++){
    sqlite3_free(azCol[i]);
  }
  /* azCol[0] is a static string */
  sqlite3_free(azCol);
}

/*
** Return a list of pointers to strings which are the names of all
** columns in table zTab.   The memory to hold the names is dynamically
** allocated and must be released by the caller using a subsequent call
** to freeColumnList().
**
** The azCol[0] entry is usually NULL.  However, if zTab contains a rowid
** value that needs to be preserved, then azCol[0] is filled in with the
** name of the rowid column.
**
** The first regular column in the table is azCol[1].  The list is terminated
** by an entry with azCol[i]==0.
*/
static char **tableColumnList(ShellState *p, const char *zTab){
  char **azCol = 0;
  sqlite3_stmt *pStmt;
  char *zSql;
  int nCol = 0;
  int nAlloc = 0;
  int nPK = 0;       /* Number of PRIMARY KEY columns seen */
  int isIPK = 0;     /* True if one PRIMARY KEY column of type INTEGER */
  int preserveRowid = ShellHasFlag(p, SHFLG_PreserveRowid);
  int rc;

  zSql = sqlite3_mprintf("PRAGMA table_info=%Q", zTab);
  rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
  sqlite3_free(zSql);
  if( rc ) return 0;
  while( sqlite3_step(pStmt)==SQLITE_ROW ){
    if( nCol>=nAlloc-2 ){
      nAlloc = nAlloc*2 + nCol + 10;
      azCol = sqlite3_realloc(azCol, nAlloc*sizeof(azCol[0]));
      if( azCol==0 ){
        raw_printf(stderr, "Error: out of memory\n");
        exit(1);
      }
    }
    azCol[++nCol] = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 1));
    if( sqlite3_column_int(pStmt, 5) ){
      nPK++;
      if( nPK==1
       && sqlite3_stricmp((const char*)sqlite3_column_text(pStmt,2),
                          "INTEGER")==0
      ){
        isIPK = 1;
      }else{
        isIPK = 0;
      }
    }
  }
  sqlite3_finalize(pStmt);
  azCol[0] = 0;
  azCol[nCol+1] = 0;

  /* The decision of whether or not a rowid really needs to be preserved
  ** is tricky.  We never need to preserve a rowid for a WITHOUT ROWID table
  ** or a table with an INTEGER PRIMARY KEY.  We are unable to preserve
  ** rowids on tables where the rowid is inaccessible because there are other
  ** columns in the table named "rowid", "_rowid_", and "oid".
  */
  if( preserveRowid && isIPK ){
    /* If a single PRIMARY KEY column with type INTEGER was seen, then it
    ** might be an alise for the ROWID.  But it might also be a WITHOUT ROWID
    ** table or a INTEGER PRIMARY KEY DESC column, neither of which are
    ** ROWID aliases.  To distinguish these cases, check to see if
    ** there is a "pk" entry in "PRAGMA index_list".  There will be
    ** no "pk" index if the PRIMARY KEY really is an alias for the ROWID.
    */
    zSql = sqlite3_mprintf("SELECT 1 FROM pragma_index_list(%Q)"
                           " WHERE origin='pk'", zTab);
    rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
    sqlite3_free(zSql);
    if( rc ){
      freeColumnList(azCol);
      return 0;
    }
    rc = sqlite3_step(pStmt);
    sqlite3_finalize(pStmt);
    preserveRowid = rc==SQLITE_ROW;
  }
  if( preserveRowid ){
    /* Only preserve the rowid if we can find a name to use for the
    ** rowid */
    static char *azRowid[] = { "rowid", "_rowid_", "oid" };
    int i, j;
    for(j=0; j<3; j++){
      for(i=1; i<=nCol; i++){
        if( sqlite3_stricmp(azRowid[j],azCol[i])==0 ) break;
      }
      if( i>nCol ){
        /* At this point, we know that azRowid[j] is not the name of any
        ** ordinary column in the table.  Verify that azRowid[j] is a valid
        ** name for the rowid before adding it to azCol[0].  WITHOUT ROWID
        ** tables will fail this last check */
        rc = sqlite3_table_column_metadata(p->db,0,zTab,azRowid[j],0,0,0,0,0);
        if( rc==SQLITE_OK ) azCol[0] = azRowid[j];
        break;
      }
    }
  }
  return azCol;
}

/*
** Toggle the reverse_unordered_selects setting.
*/
static void toggleSelectOrder(sqlite3 *db){
  sqlite3_stmt *pStmt = 0;
  int iSetting = 0;
  char zStmt[100];
  sqlite3_prepare_v2(db, "PRAGMA reverse_unordered_selects", -1, &pStmt, 0);
  if( sqlite3_step(pStmt)==SQLITE_ROW ){
    iSetting = sqlite3_column_int(pStmt, 0);
  }
  sqlite3_finalize(pStmt);
  sqlite3_snprintf(sizeof(zStmt), zStmt,
       "PRAGMA reverse_unordered_selects(%d)", !iSetting);
  sqlite3_exec(db, zStmt, 0, 0, 0);
}

/*
** This is a different callback routine used for dumping the database.
** Each row received by this callback consists of a table name,
** the table type ("index" or "table") and SQL to create the table.
** This routine should print text sufficient to recreate the table.
*/
static int dump_callback(void *pArg, int nArg, char **azArg, char **azNotUsed){
  int rc;
  const char *zTable;
  const char *zType;
  const char *zSql;
  ShellState *p = (ShellState *)pArg;

  UNUSED_PARAMETER(azNotUsed);
  if( nArg!=3 ) return 1;
  zTable = azArg[0];
  zType = azArg[1];
  zSql = azArg[2];

  if( strcmp(zTable, "sqlite_sequence")==0 ){
    raw_printf(p->out, "DELETE FROM sqlite_sequence;\n");
  }else if( sqlite3_strglob("sqlite_stat?", zTable)==0 ){
    raw_printf(p->out, "ANALYZE sqlite_master;\n");
  }else if( strncmp(zTable, "sqlite_", 7)==0 ){
    return 0;
  }else if( strncmp(zSql, "CREATE VIRTUAL TABLE", 20)==0 ){
    char *zIns;
    if( !p->writableSchema ){
      raw_printf(p->out, "PRAGMA writable_schema=ON;\n");
      p->writableSchema = 1;
    }
    zIns = sqlite3_mprintf(
       "INSERT INTO sqlite_master(type,name,tbl_name,rootpage,sql)"
       "VALUES('table','%q','%q',0,'%q');",
       zTable, zTable, zSql);
    utf8_printf(p->out, "%s\n", zIns);
    sqlite3_free(zIns);
    return 0;
  }else{
    printSchemaLine(p->out, zSql, ";\n");
  }

  if( strcmp(zType, "table")==0 ){
    ShellText sSelect;
    ShellText sTable;
    char **azCol;
    int i;
    char *savedDestTable;
    int savedMode;

    azCol = tableColumnList(p, zTable);
    if( azCol==0 ){
      p->nErr++;
      return 0;
    }

    /* Always quote the table name, even if it appears to be pure ascii,
    ** in case it is a keyword. Ex:  INSERT INTO "table" ... */
    initText(&sTable);
    appendText(&sTable, zTable, quoteChar(zTable));
    /* If preserving the rowid, add a column list after the table name.
    ** In other words:  "INSERT INTO tab(rowid,a,b,c,...) VALUES(...)"
    ** instead of the usual "INSERT INTO tab VALUES(...)".
    */
    if( azCol[0] ){
      appendText(&sTable, "(", 0);
      appendText(&sTable, azCol[0], 0);
      for(i=1; azCol[i]; i++){
        appendText(&sTable, ",", 0);
        appendText(&sTable, azCol[i], quoteChar(azCol[i]));
      }
      appendText(&sTable, ")", 0);
    }

    /* Build an appropriate SELECT statement */
    initText(&sSelect);
    appendText(&sSelect, "SELECT ", 0);
    if( azCol[0] ){
      appendText(&sSelect, azCol[0], 0);
      appendText(&sSelect, ",", 0);
    }
    for(i=1; azCol[i]; i++){
      appendText(&sSelect, azCol[i], quoteChar(azCol[i]));
      if( azCol[i+1] ){
        appendText(&sSelect, ",", 0);
      }
    }
    freeColumnList(azCol);
    appendText(&sSelect, " FROM ", 0);
    appendText(&sSelect, zTable, quoteChar(zTable));

    savedDestTable = p->zDestTable;
    savedMode = p->mode;
    p->zDestTable = sTable.z;
    p->mode = p->cMode = MODE_Insert;
    rc = shell_exec(p->db, sSelect.z, shell_callback, p, 0);
    if( (rc&0xff)==SQLITE_CORRUPT ){
      raw_printf(p->out, "/****** CORRUPTION ERROR *******/\n");
      toggleSelectOrder(p->db);
      shell_exec(p->db, sSelect.z, shell_callback, p, 0);
      toggleSelectOrder(p->db);
    }
    p->zDestTable = savedDestTable;
    p->mode = savedMode;
    freeText(&sTable);
    freeText(&sSelect);
    if( rc ) p->nErr++;
  }
  return 0;
}

/*
** Run zQuery.  Use dump_callback() as the callback routine so that
** the contents of the query are output as SQL statements.
**
** If we get a SQLITE_CORRUPT error, rerun the query after appending
** "ORDER BY rowid DESC" to the end.
*/
static int run_schema_dump_query(
  ShellState *p,
  const char *zQuery
){
  int rc;
  char *zErr = 0;
  rc = sqlite3_exec(p->db, zQuery, dump_callback, p, &zErr);
  if( rc==SQLITE_CORRUPT ){
    char *zQ2;
    int len = strlen30(zQuery);
    raw_printf(p->out, "/****** CORRUPTION ERROR *******/\n");
    if( zErr ){
      utf8_printf(p->out, "/****** %s ******/\n", zErr);
      sqlite3_free(zErr);
      zErr = 0;
    }
    zQ2 = malloc( len+100 );
    if( zQ2==0 ) return rc;
    sqlite3_snprintf(len+100, zQ2, "%s ORDER BY rowid DESC", zQuery);
    rc = sqlite3_exec(p->db, zQ2, dump_callback, p, &zErr);
    if( rc ){
      utf8_printf(p->out, "/****** ERROR: %s ******/\n", zErr);
    }else{
      rc = SQLITE_CORRUPT;
    }
    sqlite3_free(zErr);
    free(zQ2);
  }
  return rc;
}

/*
** Text of a help message
*/
static char zHelp[] =
#ifndef SQLITE_OMIT_AUTHORIZATION
  ".auth ON|OFF           Show authorizer callbacks\n"
#endif
  ".backup ?DB? FILE      Backup DB (default \"main\") to FILE\n"
  ".bail on|off           Stop after hitting an error.  Default OFF\n"
  ".binary on|off         Turn binary output on or off.  Default OFF\n"
  ".cd DIRECTORY          Change the working directory to DIRECTORY\n"
  ".changes on|off        Show number of rows changed by SQL\n"
  ".check GLOB            Fail if output since .testcase does not match\n"
  ".clone NEWDB           Clone data into NEWDB from the existing database\n"
  ".databases             List names and files of attached databases\n"
  ".dbinfo ?DB?           Show status information about the database\n"
  ".dump ?TABLE? ...      Dump the database in an SQL text format\n"
  "                         If TABLE specified, only dump tables matching\n"
  "                         LIKE pattern TABLE.\n"
  ".echo on|off           Turn command echo on or off\n"
  ".eqp on|off|full       Enable or disable automatic EXPLAIN QUERY PLAN\n"
  ".exit                  Exit this program\n"
/* Because explain mode comes on automatically now, the ".explain" mode
** is removed from the help screen.  It is still supported for legacy, however */
/*".explain ?on|off|auto? Turn EXPLAIN output mode on or off or to automatic\n"*/
  ".fullschema ?--indent? Show schema and the content of sqlite_stat tables\n"
  ".headers on|off        Turn display of headers on or off\n"
  ".help                  Show this message\n"
  ".import FILE TABLE     Import data from FILE into TABLE\n"
#ifndef SQLITE_OMIT_TEST_CONTROL
  ".imposter INDEX TABLE  Create imposter table TABLE on index INDEX\n"
#endif
  ".indexes ?TABLE?       Show names of all indexes\n"
  "                         If TABLE specified, only show indexes for tables\n"
  "                         matching LIKE pattern TABLE.\n"
#ifdef SQLITE_ENABLE_IOTRACE
  ".iotrace FILE          Enable I/O diagnostic logging to FILE\n"
#endif
  ".limit ?LIMIT? ?VAL?   Display or change the value of an SQLITE_LIMIT\n"
  ".lint OPTIONS          Report potential schema issues. Options:\n"
  "                         fkey-indexes     Find missing foreign key indexes\n"
#ifndef SQLITE_OMIT_LOAD_EXTENSION
  ".load FILE ?ENTRY?     Load an extension library\n"
#endif
  ".log FILE|off          Turn logging on or off.  FILE can be stderr/stdout\n"
  ".mode MODE ?TABLE?     Set output mode where MODE is one of:\n"
  "                         ascii    Columns/rows delimited by 0x1F and 0x1E\n"
  "                         csv      Comma-separated values\n"
  "                         column   Left-aligned columns.  (See .width)\n"
  "                         html     HTML <table> code\n"
  "                         insert   SQL insert statements for TABLE\n"
  "                         line     One value per line\n"
  "                         list     Values delimited by \"|\"\n"
  "                         quote    Escape answers as for SQL\n"
  "                         tabs     Tab-separated values\n"
  "                         tcl      TCL list elements\n"
  ".nullvalue STRING      Use STRING in place of NULL values\n"
  ".once FILENAME         Output for the next SQL command only to FILENAME\n"
  ".open ?OPTIONS? ?FILE? Close existing database and reopen FILE\n"
  "                         The --new option starts with an empty file\n"
  ".output ?FILENAME?     Send output to FILENAME or stdout\n"
  ".print STRING...       Print literal STRING\n"
  ".prompt MAIN CONTINUE  Replace the standard prompts\n"
  ".quit                  Exit this program\n"
  ".read FILENAME         Execute SQL in FILENAME\n"
  ".restore ?DB? FILE     Restore content of DB (default \"main\") from FILE\n"
  ".save FILE             Write in-memory database into FILE\n"
  ".scanstats on|off      Turn sqlite3_stmt_scanstatus() metrics on or off\n"
  ".schema ?PATTERN?      Show the CREATE statements matching PATTERN\n"
  "                          Add --indent for pretty-printing\n"
  ".selftest ?--init?     Run tests defined in the SELFTEST table\n"
  ".separator COL ?ROW?   Change the column separator and optionally the row\n"
  "                         separator for both the output mode and .import\n"
#if defined(SQLITE_ENABLE_SESSION)
  ".session CMD ...       Create or control sessions\n"
#endif
  ".sha3sum ?OPTIONS...?  Compute a SHA3 hash of database content\n"
  ".shell CMD ARGS...     Run CMD ARGS... in a system shell\n"
  ".show                  Show the current values for various settings\n"
  ".stats ?on|off?        Show stats or turn stats on or off\n"
  ".system CMD ARGS...    Run CMD ARGS... in a system shell\n"
  ".tables ?TABLE?        List names of tables\n"
  "                         If TABLE specified, only list tables matching\n"
  "                         LIKE pattern TABLE.\n"
  ".testcase NAME         Begin redirecting output to 'testcase-out.txt'\n"
  ".timeout MS            Try opening locked tables for MS milliseconds\n"
  ".timer on|off          Turn SQL timer on or off\n"
  ".trace FILE|off        Output each SQL statement as it is run\n"
  ".vfsinfo ?AUX?         Information about the top-level VFS\n"
  ".vfslist               List all available VFSes\n"
  ".vfsname ?AUX?         Print the name of the VFS stack\n"
  ".width NUM1 NUM2 ...   Set column widths for \"column\" mode\n"
  "                         Negative values right-justify\n"
;

#if defined(SQLITE_ENABLE_SESSION)
/*
** Print help information for the ".sessions" command
*/
void session_help(ShellState *p){
  raw_printf(p->out,
    ".session ?NAME? SUBCOMMAND ?ARGS...?\n"
    "If ?NAME? is omitted, the first defined session is used.\n"
    "Subcommands:\n"
    "   attach TABLE             Attach TABLE\n"
    "   changeset FILE           Write a changeset into FILE\n"
    "   close                    Close one session\n"
    "   enable ?BOOLEAN?         Set or query the enable bit\n"
    "   filter GLOB...           Reject tables matching GLOBs\n"
    "   indirect ?BOOLEAN?       Mark or query the indirect status\n"
    "   isempty                  Query whether the session is empty\n"
    "   list                     List currently open session names\n"
    "   open DB NAME             Open a new session on DB\n"
    "   patchset FILE            Write a patchset into FILE\n"
  );
}
#endif


/* Forward reference */
static int process_input(ShellState *p, FILE *in);

/*
** Read the content of file zName into memory obtained from sqlite3_malloc64()
** and return a pointer to the buffer. The caller is responsible for freeing
** the memory.
**
** If parameter pnByte is not NULL, (*pnByte) is set to the number of bytes
** read.
**
** For convenience, a nul-terminator byte is always appended to the data read
** from the file before the buffer is returned. This byte is not included in
** the final value of (*pnByte), if applicable.
**
** NULL is returned if any error is encountered. The final value of *pnByte
** is undefined in this case.
*/
static char *readFile(const char *zName, int *pnByte){
  FILE *in = fopen(zName, "rb");
  long nIn;
  size_t nRead;
  char *pBuf;
  if( in==0 ) return 0;
  fseek(in, 0, SEEK_END);
  nIn = ftell(in);
  rewind(in);
  pBuf = sqlite3_malloc64( nIn+1 );
  if( pBuf==0 ) return 0;
  nRead = fread(pBuf, nIn, 1, in);
  fclose(in);
  if( nRead!=1 ){
    sqlite3_free(pBuf);
    return 0;
  }
  pBuf[nIn] = 0;
  if( pnByte ) *pnByte = nIn;
  return pBuf;
}

#if defined(SQLITE_ENABLE_SESSION)
/*
** Close a single OpenSession object and release all of its associated
** resources.
*/
static void session_close(OpenSession *pSession){
  int i;
  sqlite3session_delete(pSession->p);
  sqlite3_free(pSession->zName);
  for(i=0; i<pSession->nFilter; i++){
    sqlite3_free(pSession->azFilter[i]);
  }
  sqlite3_free(pSession->azFilter);
  memset(pSession, 0, sizeof(OpenSession));
}
#endif

/*
** Close all OpenSession objects and release all associated resources.
*/
#if defined(SQLITE_ENABLE_SESSION)
static void session_close_all(ShellState *p){
  int i;
  for(i=0; i<p->nSession; i++){
    session_close(&p->aSession[i]);
  }
  p->nSession = 0;
}
#else
# define session_close_all(X)
#endif

/*
** Implementation of the xFilter function for an open session.  Omit
** any tables named by ".session filter" but let all other table through.
*/
#if defined(SQLITE_ENABLE_SESSION)
static int session_filter(void *pCtx, const char *zTab){
  OpenSession *pSession = (OpenSession*)pCtx;
  int i;
  for(i=0; i<pSession->nFilter; i++){
    if( sqlite3_strglob(pSession->azFilter[i], zTab)==0 ) return 0;
  }
  return 1;
}
#endif

/*
** Make sure the database is open.  If it is not, then open it.  If
** the database fails to open, print an error message and exit.
*/
static void open_db(ShellState *p, int keepAlive){
  if( p->db==0 ){
    sqlite3_initialize();
    sqlite3_open(p->zDbFilename, &p->db);
    globalDb = p->db;
    if( p->db==0 || SQLITE_OK!=sqlite3_errcode(p->db) ){
      utf8_printf(stderr,"Error: unable to open database \"%s\": %s\n",
          p->zDbFilename, sqlite3_errmsg(p->db));
      if( keepAlive ) return;
      exit(1);
    }
#ifndef SQLITE_OMIT_LOAD_EXTENSION
    sqlite3_enable_load_extension(p->db, 1);
#endif
    sqlite3_fileio_init(p->db, 0, 0);
    sqlite3_shathree_init(p->db, 0, 0);
    sqlite3_completion_init(p->db, 0, 0);
    sqlite3_create_function(p->db, "shell_add_schema", 2, SQLITE_UTF8, 0,
                            shellAddSchemaName, 0, 0);
  }
}

#if HAVE_READLINE || HAVE_EDITLINE
/*
** Readline completion callbacks
*/
static char *readline_completion_generator(const char *text, int state){
  static sqlite3_stmt *pStmt = 0;
  char *zRet;
  if( state==0 ){
    char *zSql;
    sqlite3_finalize(pStmt);
    zSql = sqlite3_mprintf("SELECT DISTINCT candidate COLLATE nocase"
                           "  FROM completion(%Q) ORDER BY 1", text);
    sqlite3_prepare_v2(globalDb, zSql, -1, &pStmt, 0);
    sqlite3_free(zSql);
  }
  if( sqlite3_step(pStmt)==SQLITE_ROW ){
    zRet = strdup((const char*)sqlite3_column_text(pStmt, 0));
  }else{
    sqlite3_finalize(pStmt);
    pStmt = 0;
    zRet = 0;
  }
  return zRet;
}
static char **readline_completion(const char *zText, int iStart, int iEnd){
  rl_attempted_completion_over = 1;
  return rl_completion_matches(zText, readline_completion_generator);
}

#elif HAVE_LINENOISE
/*
** Linenoise completion callback
*/
static void linenoise_completion(const char *zLine, linenoiseCompletions *lc){
  int nLine = (int)strlen(zLine);
  int i, iStart;
  sqlite3_stmt *pStmt = 0;
  char *zSql;
  char zBuf[1000];

  if( nLine>sizeof(zBuf)-30 ) return;
  if( zLine[0]=='.' ) return;
  for(i=nLine-1; i>=0 && (isalnum(zLine[i]) || zLine[i]=='_'); i--){}
  if( i==nLine-1 ) return;
  iStart = i+1;
  memcpy(zBuf, zLine, iStart);
  zSql = sqlite3_mprintf("SELECT DISTINCT candidate COLLATE nocase"
                         "  FROM completion(%Q,%Q) ORDER BY 1",
                         &zLine[iStart], zLine);
  sqlite3_prepare_v2(globalDb, zSql, -1, &pStmt, 0);
  sqlite3_free(zSql);
  sqlite3_exec(globalDb, "PRAGMA page_count", 0, 0, 0); /* Load the schema */
  while( sqlite3_step(pStmt)==SQLITE_ROW ){
    const char *zCompletion = (const char*)sqlite3_column_text(pStmt, 0);
    int nCompletion = sqlite3_column_bytes(pStmt, 0);
    if( iStart+nCompletion < sizeof(zBuf)-1 ){
      memcpy(zBuf+iStart, zCompletion, nCompletion+1);
      linenoiseAddCompletion(lc, zBuf);
    }
  }
  sqlite3_finalize(pStmt);
}
#endif

/*
** Do C-language style dequoting.
**
**    \a    -> alarm
**    \b    -> backspace
**    \t    -> tab
**    \n    -> newline
**    \v    -> vertical tab
**    \f    -> form feed
**    \r    -> carriage return
**    \s    -> space
**    \"    -> "
**    \'    -> '
**    \\    -> backslash
**    \NNN  -> ascii character NNN in octal
*/
static void resolve_backslashes(char *z){
  int i, j;
  char c;
  while( *z && *z!='\\' ) z++;
  for(i=j=0; (c = z[i])!=0; i++, j++){
    if( c=='\\' && z[i+1]!=0 ){
      c = z[++i];
      if( c=='a' ){
        c = '\a';
      }else if( c=='b' ){
        c = '\b';
      }else if( c=='t' ){
        c = '\t';
      }else if( c=='n' ){
        c = '\n';
      }else if( c=='v' ){
        c = '\v';
      }else if( c=='f' ){
        c = '\f';
      }else if( c=='r' ){
        c = '\r';
      }else if( c=='"' ){
        c = '"';
      }else if( c=='\'' ){
        c = '\'';
      }else if( c=='\\' ){
        c = '\\';
      }else if( c>='0' && c<='7' ){
        c -= '0';
        if( z[i+1]>='0' && z[i+1]<='7' ){
          i++;
          c = (c<<3) + z[i] - '0';
          if( z[i+1]>='0' && z[i+1]<='7' ){
            i++;
            c = (c<<3) + z[i] - '0';
          }
        }
      }
    }
    z[j] = c;
  }
  if( j<i ) z[j] = 0;
}

/*
** Return the value of a hexadecimal digit.  Return -1 if the input
** is not a hex digit.
*/
static int hexDigitValue(char c){
  if( c>='0' && c<='9' ) return c - '0';
  if( c>='a' && c<='f' ) return c - 'a' + 10;
  if( c>='A' && c<='F' ) return c - 'A' + 10;
  return -1;
}

/*
** Interpret zArg as an integer value, possibly with suffixes.
*/
static sqlite3_int64 integerValue(const char *zArg){
  sqlite3_int64 v = 0;
  static const struct { char *zSuffix; int iMult; } aMult[] = {
    { "KiB", 1024 },
    { "MiB", 1024*1024 },
    { "GiB", 1024*1024*1024 },
    { "KB",  1000 },
    { "MB",  1000000 },
    { "GB",  1000000000 },
    { "K",   1000 },
    { "M",   1000000 },
    { "G",   1000000000 },
  };
  int i;
  int isNeg = 0;
  if( zArg[0]=='-' ){
    isNeg = 1;
    zArg++;
  }else if( zArg[0]=='+' ){
    zArg++;
  }
  if( zArg[0]=='0' && zArg[1]=='x' ){
    int x;
    zArg += 2;
    while( (x = hexDigitValue(zArg[0]))>=0 ){
      v = (v<<4) + x;
      zArg++;
    }
  }else{
    while( IsDigit(zArg[0]) ){
      v = v*10 + zArg[0] - '0';
      zArg++;
    }
  }
  for(i=0; i<ArraySize(aMult); i++){
    if( sqlite3_stricmp(aMult[i].zSuffix, zArg)==0 ){
      v *= aMult[i].iMult;
      break;
    }
  }
  return isNeg? -v : v;
}

/*
** Interpret zArg as either an integer or a boolean value.  Return 1 or 0
** for TRUE and FALSE.  Return the integer value if appropriate.
*/
static int booleanValue(const char *zArg){
  int i;
  if( zArg[0]=='0' && zArg[1]=='x' ){
    for(i=2; hexDigitValue(zArg[i])>=0; i++){}
  }else{
    for(i=0; zArg[i]>='0' && zArg[i]<='9'; i++){}
  }
  if( i>0 && zArg[i]==0 ) return (int)(integerValue(zArg) & 0xffffffff);
  if( sqlite3_stricmp(zArg, "on")==0 || sqlite3_stricmp(zArg,"yes")==0 ){
    return 1;
  }
  if( sqlite3_stricmp(zArg, "off")==0 || sqlite3_stricmp(zArg,"no")==0 ){
    return 0;
  }
  utf8_printf(stderr, "ERROR: Not a boolean value: \"%s\". Assuming \"no\".\n",
          zArg);
  return 0;
}

/*
** Set or clear a shell flag according to a boolean value.
*/
static void setOrClearFlag(ShellState *p, unsigned mFlag, const char *zArg){
  if( booleanValue(zArg) ){
    ShellSetFlag(p, mFlag);
  }else{
    ShellClearFlag(p, mFlag);
  }
}

/*
** Close an output file, assuming it is not stderr or stdout
*/
static void output_file_close(FILE *f){
  if( f && f!=stdout && f!=stderr ) fclose(f);
}

/*
** Try to open an output file.   The names "stdout" and "stderr" are
** recognized and do the right thing.  NULL is returned if the output
** filename is "off".
*/
static FILE *output_file_open(const char *zFile){
  FILE *f;
  if( strcmp(zFile,"stdout")==0 ){
    f = stdout;
  }else if( strcmp(zFile, "stderr")==0 ){
    f = stderr;
  }else if( strcmp(zFile, "off")==0 ){
    f = 0;
  }else{
    f = fopen(zFile, "wb");
    if( f==0 ){
      utf8_printf(stderr, "Error: cannot open \"%s\"\n", zFile);
    }
  }
  return f;
}

#if !defined(SQLITE_UNTESTABLE)
#if !defined(SQLITE_OMIT_TRACE) && !defined(SQLITE_OMIT_FLOATING_POINT)
/*
** A routine for handling output from sqlite3_trace().
*/
static int sql_trace_callback(
  unsigned mType,
  void *pArg,
  void *pP,
  void *pX
){
  FILE *f = (FILE*)pArg;
  UNUSED_PARAMETER(mType);
  UNUSED_PARAMETER(pP);
  if( f ){
    const char *z = (const char*)pX;
    int i = (int)strlen(z);
    while( i>0 && z[i-1]==';' ){ i--; }
    utf8_printf(f, "%.*s;\n", i, z);
  }
  return 0;
}
#endif
#endif

/*
** A no-op routine that runs with the ".breakpoint" doc-command.  This is
** a useful spot to set a debugger breakpoint.
*/
static void test_breakpoint(void){
  static int nCall = 0;
  nCall++;
}

/*
** An object used to read a CSV and other files for import.
*/
typedef struct ImportCtx ImportCtx;
struct ImportCtx {
  const char *zFile;  /* Name of the input file */
  FILE *in;           /* Read the CSV text from this input stream */
  char *z;            /* Accumulated text for a field */
  int n;              /* Number of bytes in z */
  int nAlloc;         /* Space allocated for z[] */
  int nLine;          /* Current line number */
  int bNotFirst;      /* True if one or more bytes already read */
  int cTerm;          /* Character that terminated the most recent field */
  int cColSep;        /* The column separator character.  (Usually ",") */
  int cRowSep;        /* The row separator character.  (Usually "\n") */
};

/* Append a single byte to z[] */
static void import_append_char(ImportCtx *p, int c){
  if( p->n+1>=p->nAlloc ){
    p->nAlloc += p->nAlloc + 100;
    p->z = sqlite3_realloc64(p->z, p->nAlloc);
    if( p->z==0 ){
      raw_printf(stderr, "out of memory\n");
      exit(1);
    }
  }
  p->z[p->n++] = (char)c;
}

/* Read a single field of CSV text.  Compatible with rfc4180 and extended
** with the option of having a separator other than ",".
**
**   +  Input comes from p->in.
**   +  Store results in p->z of length p->n.  Space to hold p->z comes
**      from sqlite3_malloc64().
**   +  Use p->cSep as the column separator.  The default is ",".
**   +  Use p->rSep as the row separator.  The default is "\n".
**   +  Keep track of the line number in p->nLine.
**   +  Store the character that terminates the field in p->cTerm.  Store
**      EOF on end-of-file.
**   +  Report syntax errors on stderr
*/
static char *SQLITE_CDECL csv_read_one_field(ImportCtx *p){
  int c;
  int cSep = p->cColSep;
  int rSep = p->cRowSep;
  p->n = 0;
  c = fgetc(p->in);
  if( c==EOF || seenInterrupt ){
    p->cTerm = EOF;
    return 0;
  }
  if( c=='"' ){
    int pc, ppc;
    int startLine = p->nLine;
    int cQuote = c;
    pc = ppc = 0;
    while( 1 ){
      c = fgetc(p->in);
      if( c==rSep ) p->nLine++;
      if( c==cQuote ){
        if( pc==cQuote ){
          pc = 0;
          continue;
        }
      }
      if( (c==cSep && pc==cQuote)
       || (c==rSep && pc==cQuote)
       || (c==rSep && pc=='\r' && ppc==cQuote)
       || (c==EOF && pc==cQuote)
      ){
        do{ p->n--; }while( p->z[p->n]!=cQuote );
        p->cTerm = c;
        break;
      }
      if( pc==cQuote && c!='\r' ){
        utf8_printf(stderr, "%s:%d: unescaped %c character\n",
                p->zFile, p->nLine, cQuote);
      }
      if( c==EOF ){
        utf8_printf(stderr, "%s:%d: unterminated %c-quoted field\n",
                p->zFile, startLine, cQuote);
        p->cTerm = c;
        break;
      }
      import_append_char(p, c);
      ppc = pc;
      pc = c;
    }
  }else{
    /* If this is the first field being parsed and it begins with the
    ** UTF-8 BOM  (0xEF BB BF) then skip the BOM */
    if( (c&0xff)==0xef && p->bNotFirst==0 ){
      import_append_char(p, c);
      c = fgetc(p->in);
      if( (c&0xff)==0xbb ){
        import_append_char(p, c);
        c = fgetc(p->in);
        if( (c&0xff)==0xbf ){
          p->bNotFirst = 1;
          p->n = 0;
          return csv_read_one_field(p);
        }
      }
    }
    while( c!=EOF && c!=cSep && c!=rSep ){
      import_append_char(p, c);
      c = fgetc(p->in);
    }
    if( c==rSep ){
      p->nLine++;
      if( p->n>0 && p->z[p->n-1]=='\r' ) p->n--;
    }
    p->cTerm = c;
  }
  if( p->z ) p->z[p->n] = 0;
  p->bNotFirst = 1;
  return p->z;
}

/* Read a single field of ASCII delimited text.
**
**   +  Input comes from p->in.
**   +  Store results in p->z of length p->n.  Space to hold p->z comes
**      from sqlite3_malloc64().
**   +  Use p->cSep as the column separator.  The default is "\x1F".
**   +  Use p->rSep as the row separator.  The default is "\x1E".
**   +  Keep track of the row number in p->nLine.
**   +  Store the character that terminates the field in p->cTerm.  Store
**      EOF on end-of-file.
**   +  Report syntax errors on stderr
*/
static char *SQLITE_CDECL ascii_read_one_field(ImportCtx *p){
  int c;
  int cSep = p->cColSep;
  int rSep = p->cRowSep;
  p->n = 0;
  c = fgetc(p->in);
  if( c==EOF || seenInterrupt ){
    p->cTerm = EOF;
    return 0;
  }
  while( c!=EOF && c!=cSep && c!=rSep ){
    import_append_char(p, c);
    c = fgetc(p->in);
  }
  if( c==rSep ){
    p->nLine++;
  }
  p->cTerm = c;
  if( p->z ) p->z[p->n] = 0;
  return p->z;
}

/*
** Try to transfer data for table zTable.  If an error is seen while
** moving forward, try to go backwards.  The backwards movement won't
** work for WITHOUT ROWID tables.
*/
static void tryToCloneData(
  ShellState *p,
  sqlite3 *newDb,
  const char *zTable
){
  sqlite3_stmt *pQuery = 0;
  sqlite3_stmt *pInsert = 0;
  char *zQuery = 0;
  char *zInsert = 0;
  int rc;
  int i, j, n;
  int nTable = (int)strlen(zTable);
  int k = 0;
  int cnt = 0;
  const int spinRate = 10000;

  zQuery = sqlite3_mprintf("SELECT * FROM \"%w\"", zTable);
  rc = sqlite3_prepare_v2(p->db, zQuery, -1, &pQuery, 0);
  if( rc ){
    utf8_printf(stderr, "Error %d: %s on [%s]\n",
            sqlite3_extended_errcode(p->db), sqlite3_errmsg(p->db),
            zQuery);
    goto end_data_xfer;
  }
  n = sqlite3_column_count(pQuery);
  zInsert = sqlite3_malloc64(200 + nTable + n*3);
  if( zInsert==0 ){
    raw_printf(stderr, "out of memory\n");
    goto end_data_xfer;
  }
  sqlite3_snprintf(200+nTable,zInsert,
                   "INSERT OR IGNORE INTO \"%s\" VALUES(?", zTable);
  i = (int)strlen(zInsert);
  for(j=1; j<n; j++){
    memcpy(zInsert+i, ",?", 2);
    i += 2;
  }
  memcpy(zInsert+i, ");", 3);
  rc = sqlite3_prepare_v2(newDb, zInsert, -1, &pInsert, 0);
  if( rc ){
    utf8_printf(stderr, "Error %d: %s on [%s]\n",
            sqlite3_extended_errcode(newDb), sqlite3_errmsg(newDb),
            zQuery);
    goto end_data_xfer;
  }
  for(k=0; k<2; k++){
    while( (rc = sqlite3_step(pQuery))==SQLITE_ROW ){
      for(i=0; i<n; i++){
        switch( sqlite3_column_type(pQuery, i) ){
          case SQLITE_NULL: {
            sqlite3_bind_null(pInsert, i+1);
            break;
          }
          case SQLITE_INTEGER: {
            sqlite3_bind_int64(pInsert, i+1, sqlite3_column_int64(pQuery,i));
            break;
          }
          case SQLITE_FLOAT: {
            sqlite3_bind_double(pInsert, i+1, sqlite3_column_double(pQuery,i));
            break;
          }
          case SQLITE_TEXT: {
            sqlite3_bind_text(pInsert, i+1,
                             (const char*)sqlite3_column_text(pQuery,i),
                             -1, SQLITE_STATIC);
            break;
          }
          case SQLITE_BLOB: {
            sqlite3_bind_blob(pInsert, i+1, sqlite3_column_blob(pQuery,i),
                                            sqlite3_column_bytes(pQuery,i),
                                            SQLITE_STATIC);
            break;
          }
        }
      } /* End for */
      rc = sqlite3_step(pInsert);
      if( rc!=SQLITE_OK && rc!=SQLITE_ROW && rc!=SQLITE_DONE ){
        utf8_printf(stderr, "Error %d: %s\n", sqlite3_extended_errcode(newDb),
                        sqlite3_errmsg(newDb));
      }
      sqlite3_reset(pInsert);
      cnt++;
      if( (cnt%spinRate)==0 ){
        printf("%c\b", "|/-\\"[(cnt/spinRate)%4]);
        fflush(stdout);
      }
    } /* End while */
    if( rc==SQLITE_DONE ) break;
    sqlite3_finalize(pQuery);
    sqlite3_free(zQuery);
    zQuery = sqlite3_mprintf("SELECT * FROM \"%w\" ORDER BY rowid DESC;",
                             zTable);
    rc = sqlite3_prepare_v2(p->db, zQuery, -1, &pQuery, 0);
    if( rc ){
      utf8_printf(stderr, "Warning: cannot step \"%s\" backwards", zTable);
      break;
    }
  } /* End for(k=0...) */

end_data_xfer:
  sqlite3_finalize(pQuery);
  sqlite3_finalize(pInsert);
  sqlite3_free(zQuery);
  sqlite3_free(zInsert);
}


/*
** Try to transfer all rows of the schema that match zWhere.  For
** each row, invoke xForEach() on the object defined by that row.
** If an error is encountered while moving forward through the
** sqlite_master table, try again moving backwards.
*/
static void tryToCloneSchema(
  ShellState *p,
  sqlite3 *newDb,
  const char *zWhere,
  void (*xForEach)(ShellState*,sqlite3*,const char*)
){
  sqlite3_stmt *pQuery = 0;
  char *zQuery = 0;
  int rc;
  const unsigned char *zName;
  const unsigned char *zSql;
  char *zErrMsg = 0;

  zQuery = sqlite3_mprintf("SELECT name, sql FROM sqlite_master"
                           " WHERE %s", zWhere);
  rc = sqlite3_prepare_v2(p->db, zQuery, -1, &pQuery, 0);
  if( rc ){
    utf8_printf(stderr, "Error: (%d) %s on [%s]\n",
                    sqlite3_extended_errcode(p->db), sqlite3_errmsg(p->db),
                    zQuery);
    goto end_schema_xfer;
  }
  while( (rc = sqlite3_step(pQuery))==SQLITE_ROW ){
    zName = sqlite3_column_text(pQuery, 0);
    zSql = sqlite3_column_text(pQuery, 1);
    printf("%s... ", zName); fflush(stdout);
    sqlite3_exec(newDb, (const char*)zSql, 0, 0, &zErrMsg);
    if( zErrMsg ){
      utf8_printf(stderr, "Error: %s\nSQL: [%s]\n", zErrMsg, zSql);
      sqlite3_free(zErrMsg);
      zErrMsg = 0;
    }
    if( xForEach ){
      xForEach(p, newDb, (const char*)zName);
    }
    printf("done\n");
  }
  if( rc!=SQLITE_DONE ){
    sqlite3_finalize(pQuery);
    sqlite3_free(zQuery);
    zQuery = sqlite3_mprintf("SELECT name, sql FROM sqlite_master"
                             " WHERE %s ORDER BY rowid DESC", zWhere);
    rc = sqlite3_prepare_v2(p->db, zQuery, -1, &pQuery, 0);
    if( rc ){
      utf8_printf(stderr, "Error: (%d) %s on [%s]\n",
                      sqlite3_extended_errcode(p->db), sqlite3_errmsg(p->db),
                      zQuery);
      goto end_schema_xfer;
    }
    while( (rc = sqlite3_step(pQuery))==SQLITE_ROW ){
      zName = sqlite3_column_text(pQuery, 0);
      zSql = sqlite3_column_text(pQuery, 1);
      printf("%s... ", zName); fflush(stdout);
      sqlite3_exec(newDb, (const char*)zSql, 0, 0, &zErrMsg);
      if( zErrMsg ){
        utf8_printf(stderr, "Error: %s\nSQL: [%s]\n", zErrMsg, zSql);
        sqlite3_free(zErrMsg);
        zErrMsg = 0;
      }
      if( xForEach ){
        xForEach(p, newDb, (const char*)zName);
      }
      printf("done\n");
    }
  }
end_schema_xfer:
  sqlite3_finalize(pQuery);
  sqlite3_free(zQuery);
}

/*
** Open a new database file named "zNewDb".  Try to recover as much information
** as possible out of the main database (which might be corrupt) and write it
** into zNewDb.
*/
static void tryToClone(ShellState *p, const char *zNewDb){
  int rc;
  sqlite3 *newDb = 0;
  if( access(zNewDb,0)==0 ){
    utf8_printf(stderr, "File \"%s\" already exists.\n", zNewDb);
    return;
  }
  rc = sqlite3_open(zNewDb, &newDb);
  if( rc ){
    utf8_printf(stderr, "Cannot create output database: %s\n",
            sqlite3_errmsg(newDb));
  }else{
    sqlite3_exec(p->db, "PRAGMA writable_schema=ON;", 0, 0, 0);
    sqlite3_exec(newDb, "BEGIN EXCLUSIVE;", 0, 0, 0);
    tryToCloneSchema(p, newDb, "type='table'", tryToCloneData);
    tryToCloneSchema(p, newDb, "type!='table'", 0);
    sqlite3_exec(newDb, "COMMIT;", 0, 0, 0);
    sqlite3_exec(p->db, "PRAGMA writable_schema=OFF;", 0, 0, 0);
  }
  sqlite3_close(newDb);
}

/*
** Change the output file back to stdout
*/
static void output_reset(ShellState *p){
  if( p->outfile[0]=='|' ){
#ifndef SQLITE_OMIT_POPEN
    pclose(p->out);
#endif
  }else{
    output_file_close(p->out);
  }
  p->outfile[0] = 0;
  p->out = stdout;
}

/*
** Run an SQL command and return the single integer result.
*/
static int db_int(ShellState *p, const char *zSql){
  sqlite3_stmt *pStmt;
  int res = 0;
  sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
  if( pStmt && sqlite3_step(pStmt)==SQLITE_ROW ){
    res = sqlite3_column_int(pStmt,0);
  }
  sqlite3_finalize(pStmt);
  return res;
}

/*
** Convert a 2-byte or 4-byte big-endian integer into a native integer
*/
static unsigned int get2byteInt(unsigned char *a){
  return (a[0]<<8) + a[1];
}
static unsigned int get4byteInt(unsigned char *a){
  return (a[0]<<24) + (a[1]<<16) + (a[2]<<8) + a[3];
}

/*
** Implementation of the ".info" command.
**
** Return 1 on error, 2 to exit, and 0 otherwise.
*/
static int shell_dbinfo_command(ShellState *p, int nArg, char **azArg){
  static const struct { const char *zName; int ofst; } aField[] = {
     { "file change counter:",  24  },
     { "database page count:",  28  },
     { "freelist page count:",  36  },
     { "schema cookie:",        40  },
     { "schema format:",        44  },
     { "default cache size:",   48  },
     { "autovacuum top root:",  52  },
     { "incremental vacuum:",   64  },
     { "text encoding:",        56  },
     { "user version:",         60  },
     { "application id:",       68  },
     { "software version:",     96  },
  };
  static const struct { const char *zName; const char *zSql; } aQuery[] = {
     { "number of tables:",
       "SELECT count(*) FROM %s WHERE type='table'" },
     { "number of indexes:",
       "SELECT count(*) FROM %s WHERE type='index'" },
     { "number of triggers:",
       "SELECT count(*) FROM %s WHERE type='trigger'" },
     { "number of views:",
       "SELECT count(*) FROM %s WHERE type='view'" },
     { "schema size:",
       "SELECT total(length(sql)) FROM %s" },
  };
  sqlite3_file *pFile = 0;
  int i;
  char *zSchemaTab;
  char *zDb = nArg>=2 ? azArg[1] : "main";
  unsigned char aHdr[100];
  open_db(p, 0);
  if( p->db==0 ) return 1;
  sqlite3_file_control(p->db, zDb, SQLITE_FCNTL_FILE_POINTER, &pFile);
  if( pFile==0 || pFile->pMethods==0 || pFile->pMethods->xRead==0 ){
    return 1;
  }
  i = pFile->pMethods->xRead(pFile, aHdr, 100, 0);
  if( i!=SQLITE_OK ){
    raw_printf(stderr, "unable to read database header\n");
    return 1;
  }
  i = get2byteInt(aHdr+16);
  if( i==1 ) i = 65536;
  utf8_printf(p->out, "%-20s %d\n", "database page size:", i);
  utf8_printf(p->out, "%-20s %d\n", "write format:", aHdr[18]);
  utf8_printf(p->out, "%-20s %d\n", "read format:", aHdr[19]);
  utf8_printf(p->out, "%-20s %d\n", "reserved bytes:", aHdr[20]);
  for(i=0; i<ArraySize(aField); i++){
    int ofst = aField[i].ofst;
    unsigned int val = get4byteInt(aHdr + ofst);
    utf8_printf(p->out, "%-20s %u", aField[i].zName, val);
    switch( ofst ){
      case 56: {
        if( val==1 ) raw_printf(p->out, " (utf8)");
        if( val==2 ) raw_printf(p->out, " (utf16le)");
        if( val==3 ) raw_printf(p->out, " (utf16be)");
      }
    }
    raw_printf(p->out, "\n");
  }
  if( zDb==0 ){
    zSchemaTab = sqlite3_mprintf("main.sqlite_master");
  }else if( strcmp(zDb,"temp")==0 ){
    zSchemaTab = sqlite3_mprintf("%s", "sqlite_temp_master");
  }else{
    zSchemaTab = sqlite3_mprintf("\"%w\".sqlite_master", zDb);
  }
  for(i=0; i<ArraySize(aQuery); i++){
    char *zSql = sqlite3_mprintf(aQuery[i].zSql, zSchemaTab);
    int val = db_int(p, zSql);
    sqlite3_free(zSql);
    utf8_printf(p->out, "%-20s %d\n", aQuery[i].zName, val);
  }
  sqlite3_free(zSchemaTab);
  return 0;
}

/*
** Print the current sqlite3_errmsg() value to stderr and return 1.
*/
static int shellDatabaseError(sqlite3 *db){
  const char *zErr = sqlite3_errmsg(db);
  utf8_printf(stderr, "Error: %s\n", zErr);
  return 1;
}

/*
** Print an out-of-memory message to stderr and return 1.
*/
static int shellNomemError(void){
  raw_printf(stderr, "Error: out of memory\n");
  return 1;
}

/*
** Compare the pattern in zGlob[] against the text in z[].  Return TRUE
** if they match and FALSE (0) if they do not match.
**
** Globbing rules:
**
**      '*'       Matches any sequence of zero or more characters.
**
**      '?'       Matches exactly one character.
**
**     [...]      Matches one character from the enclosed list of
**                characters.
**
**     [^...]     Matches one character not in the enclosed list.
**
**      '#'       Matches any sequence of one or more digits with an
**                optional + or - sign in front
**
**      ' '       Any span of whitespace matches any other span of
**                whitespace.
**
** Extra whitespace at the end of z[] is ignored.
*/
static int testcase_glob(const char *zGlob, const char *z){
  int c, c2;
  int invert;
  int seen;

  while( (c = (*(zGlob++)))!=0 ){
    if( IsSpace(c) ){
      if( !IsSpace(*z) ) return 0;
      while( IsSpace(*zGlob) ) zGlob++;
      while( IsSpace(*z) ) z++;
    }else if( c=='*' ){
      while( (c=(*(zGlob++))) == '*' || c=='?' ){
        if( c=='?' && (*(z++))==0 ) return 0;
      }
      if( c==0 ){
        return 1;
      }else if( c=='[' ){
        while( *z && testcase_glob(zGlob-1,z)==0 ){
          z++;
        }
        return (*z)!=0;
      }
      while( (c2 = (*(z++)))!=0 ){
        while( c2!=c ){
          c2 = *(z++);
          if( c2==0 ) return 0;
        }
        if( testcase_glob(zGlob,z) ) return 1;
      }
      return 0;
    }else if( c=='?' ){
      if( (*(z++))==0 ) return 0;
    }else if( c=='[' ){
      int prior_c = 0;
      seen = 0;
      invert = 0;
      c = *(z++);
      if( c==0 ) return 0;
      c2 = *(zGlob++);
      if( c2=='^' ){
        invert = 1;
        c2 = *(zGlob++);
      }
      if( c2==']' ){
        if( c==']' ) seen = 1;
        c2 = *(zGlob++);
      }
      while( c2 && c2!=']' ){
        if( c2=='-' && zGlob[0]!=']' && zGlob[0]!=0 && prior_c>0 ){
          c2 = *(zGlob++);
          if( c>=prior_c && c<=c2 ) seen = 1;
          prior_c = 0;
        }else{
          if( c==c2 ){
            seen = 1;
          }
          prior_c = c2;
        }
        c2 = *(zGlob++);
      }
      if( c2==0 || (seen ^ invert)==0 ) return 0;
    }else if( c=='#' ){
      if( (z[0]=='-' || z[0]=='+') && IsDigit(z[1]) ) z++;
      if( !IsDigit(z[0]) ) return 0;
      z++;
      while( IsDigit(z[0]) ){ z++; }
    }else{
      if( c!=(*(z++)) ) return 0;
    }
  }
  while( IsSpace(*z) ){ z++; }
  return *z==0;
}


/*
** Compare the string as a command-line option with either one or two
** initial "-" characters.
*/
static int optionMatch(const char *zStr, const char *zOpt){
  if( zStr[0]!='-' ) return 0;
  zStr++;
  if( zStr[0]=='-' ) zStr++;
  return strcmp(zStr, zOpt)==0;
}

/*
** Delete a file.
*/
int shellDeleteFile(const char *zFilename){
  int rc;
#ifdef _WIN32
  wchar_t *z = sqlite3_win32_utf8_to_unicode(zFilename);
  rc = _wunlink(z);
  sqlite3_free(z);
#else
  rc = unlink(zFilename);
#endif
  return rc;
}


/*
** The implementation of SQL scalar function fkey_collate_clause(), used
** by the ".lint fkey-indexes" command. This scalar function is always
** called with four arguments - the parent table name, the parent column name,
** the child table name and the child column name.
**
**   fkey_collate_clause('parent-tab', 'parent-col', 'child-tab', 'child-col')
**
** If either of the named tables or columns do not exist, this function
** returns an empty string. An empty string is also returned if both tables
** and columns exist but have the same default collation sequence. Or,
** if both exist but the default collation sequences are different, this
** function returns the string " COLLATE <parent-collation>", where
** <parent-collation> is the default collation sequence of the parent column.
*/
static void shellFkeyCollateClause(
  sqlite3_context *pCtx,
  int nVal,
  sqlite3_value **apVal
){
  sqlite3 *db = sqlite3_context_db_handle(pCtx);
  const char *zParent;
  const char *zParentCol;
  const char *zParentSeq;
  const char *zChild;
  const char *zChildCol;
  const char *zChildSeq = 0;  /* Initialize to avoid false-positive warning */
  int rc;

  assert( nVal==4 );
  zParent = (const char*)sqlite3_value_text(apVal[0]);
  zParentCol = (const char*)sqlite3_value_text(apVal[1]);
  zChild = (const char*)sqlite3_value_text(apVal[2]);
  zChildCol = (const char*)sqlite3_value_text(apVal[3]);

  sqlite3_result_text(pCtx, "", -1, SQLITE_STATIC);
  rc = sqlite3_table_column_metadata(
      db, "main", zParent, zParentCol, 0, &zParentSeq, 0, 0, 0
  );
  if( rc==SQLITE_OK ){
    rc = sqlite3_table_column_metadata(
        db, "main", zChild, zChildCol, 0, &zChildSeq, 0, 0, 0
    );
  }

  if( rc==SQLITE_OK && sqlite3_stricmp(zParentSeq, zChildSeq) ){
    char *z = sqlite3_mprintf(" COLLATE %s", zParentSeq);
    sqlite3_result_text(pCtx, z, -1, SQLITE_TRANSIENT);
    sqlite3_free(z);
  }
}


/*
** The implementation of dot-command ".lint fkey-indexes".
*/
static int lintFkeyIndexes(
  ShellState *pState,             /* Current shell tool state */
  char **azArg,                   /* Array of arguments passed to dot command */
  int nArg                        /* Number of entries in azArg[] */
){
  sqlite3 *db = pState->db;       /* Database handle to query "main" db of */
  FILE *out = pState->out;        /* Stream to write non-error output to */
  int bVerbose = 0;               /* If -verbose is present */
  int bGroupByParent = 0;         /* If -groupbyparent is present */
  int i;                          /* To iterate through azArg[] */
  const char *zIndent = "";       /* How much to indent CREATE INDEX by */
  int rc;                         /* Return code */
  sqlite3_stmt *pSql = 0;         /* Compiled version of SQL statement below */

  /*
  ** This SELECT statement returns one row for each foreign key constraint
  ** in the schema of the main database. The column values are:
  **
  ** 0. The text of an SQL statement similar to:
  **
  **      "EXPLAIN QUERY PLAN SELECT rowid FROM child_table WHERE child_key=?"
  **
  **    This is the same SELECT that the foreign keys implementation needs
  **    to run internally on child tables. If there is an index that can
  **    be used to optimize this query, then it can also be used by the FK
  **    implementation to optimize DELETE or UPDATE statements on the parent
  **    table.
  **
  ** 1. A GLOB pattern suitable for sqlite3_strglob(). If the plan output by
  **    the EXPLAIN QUERY PLAN command matches this pattern, then the schema
  **    contains an index that can be used to optimize the query.
  **
  ** 2. Human readable text that describes the child table and columns. e.g.
  **
  **       "child_table(child_key1, child_key2)"
  **
  ** 3. Human readable text that describes the parent table and columns. e.g.
  **
  **       "parent_table(parent_key1, parent_key2)"
  **
  ** 4. A full CREATE INDEX statement for an index that could be used to
  **    optimize DELETE or UPDATE statements on the parent table. e.g.
  **
  **       "CREATE INDEX child_table_child_key ON child_table(child_key)"
  **
  ** 5. The name of the parent table.
  **
  ** These six values are used by the C logic below to generate the report.
  */
  const char *zSql =
  "SELECT "
    "     'EXPLAIN QUERY PLAN SELECT rowid FROM ' || quote(s.name) || ' WHERE '"
    "  || group_concat(quote(s.name) || '.' || quote(f.[from]) || '=?' "
    "  || fkey_collate_clause("
    "       f.[table], COALESCE(f.[to], p.[name]), s.name, f.[from]),' AND ')"
    ", "
    "     'SEARCH TABLE ' || s.name || ' USING COVERING INDEX*('"
    "  || group_concat('*=?', ' AND ') || ')'"
    ", "
    "     s.name  || '(' || group_concat(f.[from],  ', ') || ')'"
    ", "
    "     f.[table] || '(' || group_concat(COALESCE(f.[to], p.[name])) || ')'"
    ", "
    "     'CREATE INDEX ' || quote(s.name ||'_'|| group_concat(f.[from], '_'))"
    "  || ' ON ' || quote(s.name) || '('"
    "  || group_concat(quote(f.[from]) ||"
    "        fkey_collate_clause("
    "          f.[table], COALESCE(f.[to], p.[name]), s.name, f.[from]), ', ')"
    "  || ');'"
    ", "
    "     f.[table] "
    "FROM sqlite_master AS s, pragma_foreign_key_list(s.name) AS f "
    "LEFT JOIN pragma_table_info AS p ON (pk-1=seq AND p.arg=f.[table]) "
    "GROUP BY s.name, f.id "
    "ORDER BY (CASE WHEN ? THEN f.[table] ELSE s.name END)"
  ;
  const char *zGlobIPK = "SEARCH TABLE * USING INTEGER PRIMARY KEY (rowid=?)";

  for(i=2; i<nArg; i++){
    int n = (int)strlen(azArg[i]);
    if( n>1 && sqlite3_strnicmp("-verbose", azArg[i], n)==0 ){
      bVerbose = 1;
    }
    else if( n>1 && sqlite3_strnicmp("-groupbyparent", azArg[i], n)==0 ){
      bGroupByParent = 1;
      zIndent = "    ";
    }
    else{
      raw_printf(stderr, "Usage: %s %s ?-verbose? ?-groupbyparent?\n",
          azArg[0], azArg[1]
      );
      return SQLITE_ERROR;
    }
  }

  /* Register the fkey_collate_clause() SQL function */
  rc = sqlite3_create_function(db, "fkey_collate_clause", 4, SQLITE_UTF8,
      0, shellFkeyCollateClause, 0, 0
  );


  if( rc==SQLITE_OK ){
    rc = sqlite3_prepare_v2(db, zSql, -1, &pSql, 0);
  }
  if( rc==SQLITE_OK ){
    sqlite3_bind_int(pSql, 1, bGroupByParent);
  }

  if( rc==SQLITE_OK ){
    int rc2;
    char *zPrev = 0;
    while( SQLITE_ROW==sqlite3_step(pSql) ){
      int res = -1;
      sqlite3_stmt *pExplain = 0;
      const char *zEQP = (const char*)sqlite3_column_text(pSql, 0);
      const char *zGlob = (const char*)sqlite3_column_text(pSql, 1);
      const char *zFrom = (const char*)sqlite3_column_text(pSql, 2);
      const char *zTarget = (const char*)sqlite3_column_text(pSql, 3);
      const char *zCI = (const char*)sqlite3_column_text(pSql, 4);
      const char *zParent = (const char*)sqlite3_column_text(pSql, 5);

      rc = sqlite3_prepare_v2(db, zEQP, -1, &pExplain, 0);
      if( rc!=SQLITE_OK ) break;
      if( SQLITE_ROW==sqlite3_step(pExplain) ){
        const char *zPlan = (const char*)sqlite3_column_text(pExplain, 3);
        res = (
              0==sqlite3_strglob(zGlob, zPlan)
           || 0==sqlite3_strglob(zGlobIPK, zPlan)
        );
      }
      rc = sqlite3_finalize(pExplain);
      if( rc!=SQLITE_OK ) break;

      if( res<0 ){
        raw_printf(stderr, "Error: internal error");
        break;
      }else{
        if( bGroupByParent
        && (bVerbose || res==0)
        && (zPrev==0 || sqlite3_stricmp(zParent, zPrev))
        ){
          raw_printf(out, "-- Parent table %s\n", zParent);
          sqlite3_free(zPrev);
          zPrev = sqlite3_mprintf("%s", zParent);
        }

        if( res==0 ){
          raw_printf(out, "%s%s --> %s\n", zIndent, zCI, zTarget);
        }else if( bVerbose ){
          raw_printf(out, "%s/* no extra indexes required for %s -> %s */\n",
              zIndent, zFrom, zTarget
          );
        }
      }
    }
    sqlite3_free(zPrev);

    if( rc!=SQLITE_OK ){
      raw_printf(stderr, "%s\n", sqlite3_errmsg(db));
    }

    rc2 = sqlite3_finalize(pSql);
    if( rc==SQLITE_OK && rc2!=SQLITE_OK ){
      rc = rc2;
      raw_printf(stderr, "%s\n", sqlite3_errmsg(db));
    }
  }else{
    raw_printf(stderr, "%s\n", sqlite3_errmsg(db));
  }

  return rc;
}

/*
** Implementation of ".lint" dot command.
*/
static int lintDotCommand(
  ShellState *pState,             /* Current shell tool state */
  char **azArg,                   /* Array of arguments passed to dot command */
  int nArg                        /* Number of entries in azArg[] */
){
  int n;
  n = (nArg>=2 ? (int)strlen(azArg[1]) : 0);
  if( n<1 || sqlite3_strnicmp(azArg[1], "fkey-indexes", n) ) goto usage;
  return lintFkeyIndexes(pState, azArg, nArg);

 usage:
  raw_printf(stderr, "Usage %s sub-command ?switches...?\n", azArg[0]);
  raw_printf(stderr, "Where sub-commands are:\n");
  raw_printf(stderr, "    fkey-indexes\n");
  return SQLITE_ERROR;
}


/*
** If an input line begins with "." then invoke this routine to
** process that line.
**
** Return 1 on error, 2 to exit, and 0 otherwise.
*/
static int do_meta_command(char *zLine, ShellState *p){
  int h = 1;
  int nArg = 0;
  int n, c;
  int rc = 0;
  char *azArg[50];

  /* Parse the input line into tokens.
  */
  while( zLine[h] && nArg<ArraySize(azArg) ){
    while( IsSpace(zLine[h]) ){ h++; }
    if( zLine[h]==0 ) break;
    if( zLine[h]=='\'' || zLine[h]=='"' ){
      int delim = zLine[h++];
      azArg[nArg++] = &zLine[h];
      while( zLine[h] && zLine[h]!=delim ){
        if( zLine[h]=='\\' && delim=='"' && zLine[h+1]!=0 ) h++;
        h++;
      }
      if( zLine[h]==delim ){
        zLine[h++] = 0;
      }
      if( delim=='"' ) resolve_backslashes(azArg[nArg-1]);
    }else{
      azArg[nArg++] = &zLine[h];
      while( zLine[h] && !IsSpace(zLine[h]) ){ h++; }
      if( zLine[h] ) zLine[h++] = 0;
      resolve_backslashes(azArg[nArg-1]);
    }
  }

  /* Process the input line.
  */
  if( nArg==0 ) return 0; /* no tokens, no error */
  n = strlen30(azArg[0]);
  c = azArg[0][0];

#ifndef SQLITE_OMIT_AUTHORIZATION
  if( c=='a' && strncmp(azArg[0], "auth", n)==0 ){
    if( nArg!=2 ){
      raw_printf(stderr, "Usage: .auth ON|OFF\n");
      rc = 1;
      goto meta_command_exit;
    }
    open_db(p, 0);
    if( booleanValue(azArg[1]) ){
      sqlite3_set_authorizer(p->db, shellAuth, p);
    }else{
      sqlite3_set_authorizer(p->db, 0, 0);
    }
  }else
#endif

  if( (c=='b' && n>=3 && strncmp(azArg[0], "backup", n)==0)
   || (c=='s' && n>=3 && strncmp(azArg[0], "save", n)==0)
  ){
    const char *zDestFile = 0;
    const char *zDb = 0;
    sqlite3 *pDest;
    sqlite3_backup *pBackup;
    int j;
    for(j=1; j<nArg; j++){
      const char *z = azArg[j];
      if( z[0]=='-' ){
        while( z[0]=='-' ) z++;
        /* No options to process at this time */
        {
          utf8_printf(stderr, "unknown option: %s\n", azArg[j]);
          return 1;
        }
      }else if( zDestFile==0 ){
        zDestFile = azArg[j];
      }else if( zDb==0 ){
        zDb = zDestFile;
        zDestFile = azArg[j];
      }else{
        raw_printf(stderr, "too many arguments to .backup\n");
        return 1;
      }
    }
    if( zDestFile==0 ){
      raw_printf(stderr, "missing FILENAME argument on .backup\n");
      return 1;
    }
    if( zDb==0 ) zDb = "main";
    rc = sqlite3_open(zDestFile, &pDest);
    if( rc!=SQLITE_OK ){
      utf8_printf(stderr, "Error: cannot open \"%s\"\n", zDestFile);
      sqlite3_close(pDest);
      return 1;
    }
    open_db(p, 0);
    pBackup = sqlite3_backup_init(pDest, "main", p->db, zDb);
    if( pBackup==0 ){
      utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(pDest));
      sqlite3_close(pDest);
      return 1;
    }
    while(  (rc = sqlite3_backup_step(pBackup,100))==SQLITE_OK ){}
    sqlite3_backup_finish(pBackup);
    if( rc==SQLITE_DONE ){
      rc = 0;
    }else{
      utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(pDest));
      rc = 1;
    }
    sqlite3_close(pDest);
  }else

  if( c=='b' && n>=3 && strncmp(azArg[0], "bail", n)==0 ){
    if( nArg==2 ){
      bail_on_error = booleanValue(azArg[1]);
    }else{
      raw_printf(stderr, "Usage: .bail on|off\n");
      rc = 1;
    }
  }else

  if( c=='b' && n>=3 && strncmp(azArg[0], "binary", n)==0 ){
    if( nArg==2 ){
      if( booleanValue(azArg[1]) ){
        setBinaryMode(p->out, 1);
      }else{
        setTextMode(p->out, 1);
      }
    }else{
      raw_printf(stderr, "Usage: .binary on|off\n");
      rc = 1;
    }
  }else

  if( c=='c' && strcmp(azArg[0],"cd")==0 ){
    if( nArg==2 ){
#if defined(_WIN32) || defined(WIN32)
      wchar_t *z = sqlite3_win32_utf8_to_unicode(azArg[1]);
      rc = !SetCurrentDirectoryW(z);
      sqlite3_free(z);
#else
      rc = chdir(azArg[1]);
#endif
      if( rc ){
        utf8_printf(stderr, "Cannot change to directory \"%s\"\n", azArg[1]);
        rc = 1;
      }
    }else{
      raw_printf(stderr, "Usage: .cd DIRECTORY\n");
      rc = 1;
    }
  }else

  /* The undocumented ".breakpoint" command causes a call to the no-op
  ** routine named test_breakpoint().
  */
  if( c=='b' && n>=3 && strncmp(azArg[0], "breakpoint", n)==0 ){
    test_breakpoint();
  }else

  if( c=='c' && n>=3 && strncmp(azArg[0], "changes", n)==0 ){
    if( nArg==2 ){
      setOrClearFlag(p, SHFLG_CountChanges, azArg[1]);
    }else{
      raw_printf(stderr, "Usage: .changes on|off\n");
      rc = 1;
    }
  }else

  /* Cancel output redirection, if it is currently set (by .testcase)
  ** Then read the content of the testcase-out.txt file and compare against
  ** azArg[1].  If there are differences, report an error and exit.
  */
  if( c=='c' && n>=3 && strncmp(azArg[0], "check", n)==0 ){
    char *zRes = 0;
    output_reset(p);
    if( nArg!=2 ){
      raw_printf(stderr, "Usage: .check GLOB-PATTERN\n");
      rc = 2;
    }else if( (zRes = readFile("testcase-out.txt", 0))==0 ){
      raw_printf(stderr, "Error: cannot read 'testcase-out.txt'\n");
      rc = 2;
    }else if( testcase_glob(azArg[1],zRes)==0 ){
      utf8_printf(stderr,
                 "testcase-%s FAILED\n Expected: [%s]\n      Got: [%s]\n",
                 p->zTestcase, azArg[1], zRes);
      rc = 2;
    }else{
      utf8_printf(stdout, "testcase-%s ok\n", p->zTestcase);
      p->nCheck++;
    }
    sqlite3_free(zRes);
  }else

  if( c=='c' && strncmp(azArg[0], "clone", n)==0 ){
    if( nArg==2 ){
      tryToClone(p, azArg[1]);
    }else{
      raw_printf(stderr, "Usage: .clone FILENAME\n");
      rc = 1;
    }
  }else

  if( c=='d' && n>1 && strncmp(azArg[0], "databases", n)==0 ){
    ShellState data;
    char *zErrMsg = 0;
    open_db(p, 0);
    memcpy(&data, p, sizeof(data));
    data.showHeader = 0;
    data.cMode = data.mode = MODE_List;
    sqlite3_snprintf(sizeof(data.colSeparator),data.colSeparator,": ");
    data.cnt = 0;
    sqlite3_exec(p->db, "SELECT name, file FROM pragma_database_list",
                 callback, &data, &zErrMsg);
    if( zErrMsg ){
      utf8_printf(stderr,"Error: %s\n", zErrMsg);
      sqlite3_free(zErrMsg);
      rc = 1;
    }
  }else

  if( c=='d' && strncmp(azArg[0], "dbinfo", n)==0 ){
    rc = shell_dbinfo_command(p, nArg, azArg);
  }else

  if( c=='d' && strncmp(azArg[0], "dump", n)==0 ){
    const char *zLike = 0;
    int i;
    int savedShowHeader = p->showHeader;
    ShellClearFlag(p, SHFLG_PreserveRowid|SHFLG_Newlines);
    for(i=1; i<nArg; i++){
      if( azArg[i][0]=='-' ){
        const char *z = azArg[i]+1;
        if( z[0]=='-' ) z++;
        if( strcmp(z,"preserve-rowids")==0 ){
#ifdef SQLITE_OMIT_VIRTUALTABLE
          raw_printf(stderr, "The --preserve-rowids option is not compatible"
                             " with SQLITE_OMIT_VIRTUALTABLE\n");
          rc = 1;
          goto meta_command_exit;
#else
          ShellSetFlag(p, SHFLG_PreserveRowid);
#endif
        }else
        if( strcmp(z,"newlines")==0 ){
          ShellSetFlag(p, SHFLG_Newlines);
        }else
        {
          raw_printf(stderr, "Unknown option \"%s\" on \".dump\"\n", azArg[i]);
          rc = 1;
          goto meta_command_exit;
        }
      }else if( zLike ){
        raw_printf(stderr, "Usage: .dump ?--preserve-rowids? "
                           "?--newlines? ?LIKE-PATTERN?\n");
        rc = 1;
        goto meta_command_exit;
      }else{
        zLike = azArg[i];
      }
    }
    open_db(p, 0);
    /* When playing back a "dump", the content might appear in an order
    ** which causes immediate foreign key constraints to be violated.
    ** So disable foreign-key constraint enforcement to prevent problems. */
    raw_printf(p->out, "PRAGMA foreign_keys=OFF;\n");
    raw_printf(p->out, "BEGIN TRANSACTION;\n");
    p->writableSchema = 0;
    p->showHeader = 0;
    /* Set writable_schema=ON since doing so forces SQLite to initialize
    ** as much of the schema as it can even if the sqlite_master table is
    ** corrupt. */
    sqlite3_exec(p->db, "SAVEPOINT dump; PRAGMA writable_schema=ON", 0, 0, 0);
    p->nErr = 0;
    if( zLike==0 ){
      run_schema_dump_query(p,
        "SELECT name, type, sql FROM sqlite_master "
        "WHERE sql NOT NULL AND type=='table' AND name!='sqlite_sequence'"
      );
      run_schema_dump_query(p,
        "SELECT name, type, sql FROM sqlite_master "
        "WHERE name=='sqlite_sequence'"
      );
      run_table_dump_query(p,
        "SELECT sql FROM sqlite_master "
        "WHERE sql NOT NULL AND type IN ('index','trigger','view')", 0
      );
    }else{
      char *zSql;
      zSql = sqlite3_mprintf(
        "SELECT name, type, sql FROM sqlite_master "
        "WHERE tbl_name LIKE %Q AND type=='table'"
        "  AND sql NOT NULL", zLike);
      run_schema_dump_query(p,zSql);
      sqlite3_free(zSql);
      zSql = sqlite3_mprintf(
        "SELECT sql FROM sqlite_master "
        "WHERE sql NOT NULL"
        "  AND type IN ('index','trigger','view')"
        "  AND tbl_name LIKE %Q", zLike);
      run_table_dump_query(p, zSql, 0);
      sqlite3_free(zSql);
    }
    if( p->writableSchema ){
      raw_printf(p->out, "PRAGMA writable_schema=OFF;\n");
      p->writableSchema = 0;
    }
    sqlite3_exec(p->db, "PRAGMA writable_schema=OFF;", 0, 0, 0);
    sqlite3_exec(p->db, "RELEASE dump;", 0, 0, 0);
    raw_printf(p->out, p->nErr ? "ROLLBACK; -- due to errors\n" : "COMMIT;\n");
    p->showHeader = savedShowHeader;
  }else

  if( c=='e' && strncmp(azArg[0], "echo", n)==0 ){
    if( nArg==2 ){
      setOrClearFlag(p, SHFLG_Echo, azArg[1]);
    }else{
      raw_printf(stderr, "Usage: .echo on|off\n");
      rc = 1;
    }
  }else

  if( c=='e' && strncmp(azArg[0], "eqp", n)==0 ){
    if( nArg==2 ){
      if( strcmp(azArg[1],"full")==0 ){
        p->autoEQP = 2;
      }else{
        p->autoEQP = booleanValue(azArg[1]);
      }
    }else{
      raw_printf(stderr, "Usage: .eqp on|off|full\n");
      rc = 1;
    }
  }else

  if( c=='e' && strncmp(azArg[0], "exit", n)==0 ){
    if( nArg>1 && (rc = (int)integerValue(azArg[1]))!=0 ) exit(rc);
    rc = 2;
  }else

  /* The ".explain" command is automatic now.  It is largely pointless.  It
  ** retained purely for backwards compatibility */
  if( c=='e' && strncmp(azArg[0], "explain", n)==0 ){
    int val = 1;
    if( nArg>=2 ){
      if( strcmp(azArg[1],"auto")==0 ){
        val = 99;
      }else{
        val =  booleanValue(azArg[1]);
      }
    }
    if( val==1 && p->mode!=MODE_Explain ){
      p->normalMode = p->mode;
      p->mode = MODE_Explain;
      p->autoExplain = 0;
    }else if( val==0 ){
      if( p->mode==MODE_Explain ) p->mode = p->normalMode;
      p->autoExplain = 0;
    }else if( val==99 ){
      if( p->mode==MODE_Explain ) p->mode = p->normalMode;
      p->autoExplain = 1;
    }
  }else

  if( c=='f' && strncmp(azArg[0], "fullschema", n)==0 ){
    ShellState data;
    char *zErrMsg = 0;
    int doStats = 0;
    memcpy(&data, p, sizeof(data));
    data.showHeader = 0;
    data.cMode = data.mode = MODE_Semi;
    if( nArg==2 && optionMatch(azArg[1], "indent") ){
      data.cMode = data.mode = MODE_Pretty;
      nArg = 1;
    }
    if( nArg!=1 ){
      raw_printf(stderr, "Usage: .fullschema ?--indent?\n");
      rc = 1;
      goto meta_command_exit;
    }
    open_db(p, 0);
    rc = sqlite3_exec(p->db,
       "SELECT sql FROM"
       "  (SELECT sql sql, type type, tbl_name tbl_name, name name, rowid x"
       "     FROM sqlite_master UNION ALL"
       "   SELECT sql, type, tbl_name, name, rowid FROM sqlite_temp_master) "
       "WHERE type!='meta' AND sql NOTNULL AND name NOT LIKE 'sqlite_%' "
       "ORDER BY rowid",
       callback, &data, &zErrMsg
    );
    if( rc==SQLITE_OK ){
      sqlite3_stmt *pStmt;
      rc = sqlite3_prepare_v2(p->db,
               "SELECT rowid FROM sqlite_master"
               " WHERE name GLOB 'sqlite_stat[134]'",
               -1, &pStmt, 0);
      doStats = sqlite3_step(pStmt)==SQLITE_ROW;
      sqlite3_finalize(pStmt);
    }
    if( doStats==0 ){
      raw_printf(p->out, "/* No STAT tables available */\n");
    }else{
      raw_printf(p->out, "ANALYZE sqlite_master;\n");
      sqlite3_exec(p->db, "SELECT 'ANALYZE sqlite_master'",
                   callback, &data, &zErrMsg);
      data.cMode = data.mode = MODE_Insert;
      data.zDestTable = "sqlite_stat1";
      shell_exec(p->db, "SELECT * FROM sqlite_stat1",
                 shell_callback, &data,&zErrMsg);
      data.zDestTable = "sqlite_stat3";
      shell_exec(p->db, "SELECT * FROM sqlite_stat3",
                 shell_callback, &data,&zErrMsg);
      data.zDestTable = "sqlite_stat4";
      shell_exec(p->db, "SELECT * FROM sqlite_stat4",
                 shell_callback, &data, &zErrMsg);
      raw_printf(p->out, "ANALYZE sqlite_master;\n");
    }
  }else

  if( c=='h' && strncmp(azArg[0], "headers", n)==0 ){
    if( nArg==2 ){
      p->showHeader = booleanValue(azArg[1]);
    }else{
      raw_printf(stderr, "Usage: .headers on|off\n");
      rc = 1;
    }
  }else

  if( c=='h' && strncmp(azArg[0], "help", n)==0 ){
    utf8_printf(p->out, "%s", zHelp);
  }else

  if( c=='i' && strncmp(azArg[0], "import", n)==0 ){
    char *zTable;               /* Insert data into this table */
    char *zFile;                /* Name of file to extra content from */
    sqlite3_stmt *pStmt = NULL; /* A statement */
    int nCol;                   /* Number of columns in the table */
    int nByte;                  /* Number of bytes in an SQL string */
    int i, j;                   /* Loop counters */
    int needCommit;             /* True to COMMIT or ROLLBACK at end */
    int nSep;                   /* Number of bytes in p->colSeparator[] */
    char *zSql;                 /* An SQL statement */
    ImportCtx sCtx;             /* Reader context */
    char *(SQLITE_CDECL *xRead)(ImportCtx*); /* Func to read one value */
    int (SQLITE_CDECL *xCloser)(FILE*);      /* Func to close file */

    if( nArg!=3 ){
      raw_printf(stderr, "Usage: .import FILE TABLE\n");
      goto meta_command_exit;
    }
    zFile = azArg[1];
    zTable = azArg[2];
    seenInterrupt = 0;
    memset(&sCtx, 0, sizeof(sCtx));
    open_db(p, 0);
    nSep = strlen30(p->colSeparator);
    if( nSep==0 ){
      raw_printf(stderr,
                 "Error: non-null column separator required for import\n");
      return 1;
    }
    if( nSep>1 ){
      raw_printf(stderr, "Error: multi-character column separators not allowed"
                      " for import\n");
      return 1;
    }
    nSep = strlen30(p->rowSeparator);
    if( nSep==0 ){
      raw_printf(stderr, "Error: non-null row separator required for import\n");
      return 1;
    }
    if( nSep==2 && p->mode==MODE_Csv && strcmp(p->rowSeparator, SEP_CrLf)==0 ){
      /* When importing CSV (only), if the row separator is set to the
      ** default output row separator, change it to the default input
      ** row separator.  This avoids having to maintain different input
      ** and output row separators. */
      sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row);
      nSep = strlen30(p->rowSeparator);
    }
    if( nSep>1 ){
      raw_printf(stderr, "Error: multi-character row separators not allowed"
                      " for import\n");
      return 1;
    }
    sCtx.zFile = zFile;
    sCtx.nLine = 1;
    if( sCtx.zFile[0]=='|' ){
#ifdef SQLITE_OMIT_POPEN
      raw_printf(stderr, "Error: pipes are not supported in this OS\n");
      return 1;
#else
      sCtx.in = popen(sCtx.zFile+1, "r");
      sCtx.zFile = "<pipe>";
      xCloser = pclose;
#endif
    }else{
      sCtx.in = fopen(sCtx.zFile, "rb");
      xCloser = fclose;
    }
    if( p->mode==MODE_Ascii ){
      xRead = ascii_read_one_field;
    }else{
      xRead = csv_read_one_field;
    }
    if( sCtx.in==0 ){
      utf8_printf(stderr, "Error: cannot open \"%s\"\n", zFile);
      return 1;
    }
    sCtx.cColSep = p->colSeparator[0];
    sCtx.cRowSep = p->rowSeparator[0];
    zSql = sqlite3_mprintf("SELECT * FROM %s", zTable);
    if( zSql==0 ){
      raw_printf(stderr, "Error: out of memory\n");
      xCloser(sCtx.in);
      return 1;
    }
    nByte = strlen30(zSql);
    rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
    import_append_char(&sCtx, 0);    /* To ensure sCtx.z is allocated */
    if( rc && sqlite3_strglob("no such table: *", sqlite3_errmsg(p->db))==0 ){
      char *zCreate = sqlite3_mprintf("CREATE TABLE %s", zTable);
      char cSep = '(';
      while( xRead(&sCtx) ){
        zCreate = sqlite3_mprintf("%z%c\n  \"%w\" TEXT", zCreate, cSep, sCtx.z);
        cSep = ',';
        if( sCtx.cTerm!=sCtx.cColSep ) break;
      }
      if( cSep=='(' ){
        sqlite3_free(zCreate);
        sqlite3_free(sCtx.z);
        xCloser(sCtx.in);
        utf8_printf(stderr,"%s: empty file\n", sCtx.zFile);
        return 1;
      }
      zCreate = sqlite3_mprintf("%z\n)", zCreate);
      rc = sqlite3_exec(p->db, zCreate, 0, 0, 0);
      sqlite3_free(zCreate);
      if( rc ){
        utf8_printf(stderr, "CREATE TABLE %s(...) failed: %s\n", zTable,
                sqlite3_errmsg(p->db));
        sqlite3_free(sCtx.z);
        xCloser(sCtx.in);
        return 1;
      }
      rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
    }
    sqlite3_free(zSql);
    if( rc ){
      if (pStmt) sqlite3_finalize(pStmt);
      utf8_printf(stderr,"Error: %s\n", sqlite3_errmsg(p->db));
      xCloser(sCtx.in);
      return 1;
    }
    nCol = sqlite3_column_count(pStmt);
    sqlite3_finalize(pStmt);
    pStmt = 0;
    if( nCol==0 ) return 0; /* no columns, no error */
    zSql = sqlite3_malloc64( nByte*2 + 20 + nCol*2 );
    if( zSql==0 ){
      raw_printf(stderr, "Error: out of memory\n");
      xCloser(sCtx.in);
      return 1;
    }
    sqlite3_snprintf(nByte+20, zSql, "INSERT INTO \"%w\" VALUES(?", zTable);
    j = strlen30(zSql);
    for(i=1; i<nCol; i++){
      zSql[j++] = ',';
      zSql[j++] = '?';
    }
    zSql[j++] = ')';
    zSql[j] = 0;
    rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
    sqlite3_free(zSql);
    if( rc ){
      utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(p->db));
      if (pStmt) sqlite3_finalize(pStmt);
      xCloser(sCtx.in);
      return 1;
    }
    needCommit = sqlite3_get_autocommit(p->db);
    if( needCommit ) sqlite3_exec(p->db, "BEGIN", 0, 0, 0);
    do{
      int startLine = sCtx.nLine;
      for(i=0; i<nCol; i++){
        char *z = xRead(&sCtx);
        /*
        ** Did we reach end-of-file before finding any columns?
        ** If so, stop instead of NULL filling the remaining columns.
        */
        if( z==0 && i==0 ) break;
        /*
        ** Did we reach end-of-file OR end-of-line before finding any
        ** columns in ASCII mode?  If so, stop instead of NULL filling
        ** the remaining columns.
        */
        if( p->mode==MODE_Ascii && (z==0 || z[0]==0) && i==0 ) break;
        sqlite3_bind_text(pStmt, i+1, z, -1, SQLITE_TRANSIENT);
        if( i<nCol-1 && sCtx.cTerm!=sCtx.cColSep ){
          utf8_printf(stderr, "%s:%d: expected %d columns but found %d - "
                          "filling the rest with NULL\n",
                          sCtx.zFile, startLine, nCol, i+1);
          i += 2;
          while( i<=nCol ){ sqlite3_bind_null(pStmt, i); i++; }
        }
      }
      if( sCtx.cTerm==sCtx.cColSep ){
        do{
          xRead(&sCtx);
          i++;
        }while( sCtx.cTerm==sCtx.cColSep );
        utf8_printf(stderr, "%s:%d: expected %d columns but found %d - "
                        "extras ignored\n",
                        sCtx.zFile, startLine, nCol, i);
      }
      if( i>=nCol ){
        sqlite3_step(pStmt);
        rc = sqlite3_reset(pStmt);
        if( rc!=SQLITE_OK ){
          utf8_printf(stderr, "%s:%d: INSERT failed: %s\n", sCtx.zFile,
                      startLine, sqlite3_errmsg(p->db));
        }
      }
    }while( sCtx.cTerm!=EOF );

    xCloser(sCtx.in);
    sqlite3_free(sCtx.z);
    sqlite3_finalize(pStmt);
    if( needCommit ) sqlite3_exec(p->db, "COMMIT", 0, 0, 0);
  }else

#ifndef SQLITE_UNTESTABLE
  if( c=='i' && strncmp(azArg[0], "imposter", n)==0 ){
    char *zSql;
    char *zCollist = 0;
    sqlite3_stmt *pStmt;
    int tnum = 0;
    int i;
    if( nArg!=3 ){
      utf8_printf(stderr, "Usage: .imposter INDEX IMPOSTER\n");
      rc = 1;
      goto meta_command_exit;
    }
    open_db(p, 0);
    zSql = sqlite3_mprintf("SELECT rootpage FROM sqlite_master"
                           " WHERE name='%q' AND type='index'", azArg[1]);
    sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
    sqlite3_free(zSql);
    if( sqlite3_step(pStmt)==SQLITE_ROW ){
      tnum = sqlite3_column_int(pStmt, 0);
    }
    sqlite3_finalize(pStmt);
    if( tnum==0 ){
      utf8_printf(stderr, "no such index: \"%s\"\n", azArg[1]);
      rc = 1;
      goto meta_command_exit;
    }
    zSql = sqlite3_mprintf("PRAGMA index_xinfo='%q'", azArg[1]);
    rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
    sqlite3_free(zSql);
    i = 0;
    while( sqlite3_step(pStmt)==SQLITE_ROW ){
      char zLabel[20];
      const char *zCol = (const char*)sqlite3_column_text(pStmt,2);
      i++;
      if( zCol==0 ){
        if( sqlite3_column_int(pStmt,1)==-1 ){
          zCol = "_ROWID_";
        }else{
          sqlite3_snprintf(sizeof(zLabel),zLabel,"expr%d",i);
          zCol = zLabel;
        }
      }
      if( zCollist==0 ){
        zCollist = sqlite3_mprintf("\"%w\"", zCol);
      }else{
        zCollist = sqlite3_mprintf("%z,\"%w\"", zCollist, zCol);
      }
    }
    sqlite3_finalize(pStmt);
    zSql = sqlite3_mprintf(
          "CREATE TABLE \"%w\"(%s,PRIMARY KEY(%s))WITHOUT ROWID",
          azArg[2], zCollist, zCollist);
    sqlite3_free(zCollist);
    rc = sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->db, "main", 1, tnum);
    if( rc==SQLITE_OK ){
      rc = sqlite3_exec(p->db, zSql, 0, 0, 0);
      sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->db, "main", 0, 0);
      if( rc ){
        utf8_printf(stderr, "Error in [%s]: %s\n", zSql, sqlite3_errmsg(p->db));
      }else{
        utf8_printf(stdout, "%s;\n", zSql);
        raw_printf(stdout,
           "WARNING: writing to an imposter table will corrupt the index!\n"
        );
      }
    }else{
      raw_printf(stderr, "SQLITE_TESTCTRL_IMPOSTER returns %d\n", rc);
      rc = 1;
    }
    sqlite3_free(zSql);
  }else
#endif /* !defined(SQLITE_OMIT_TEST_CONTROL) */

#ifdef SQLITE_ENABLE_IOTRACE
  if( c=='i' && strncmp(azArg[0], "iotrace", n)==0 ){
    SQLITE_API extern void (SQLITE_CDECL *sqlite3IoTrace)(const char*, ...);
    if( iotrace && iotrace!=stdout ) fclose(iotrace);
    iotrace = 0;
    if( nArg<2 ){
      sqlite3IoTrace = 0;
    }else if( strcmp(azArg[1], "-")==0 ){
      sqlite3IoTrace = iotracePrintf;
      iotrace = stdout;
    }else{
      iotrace = fopen(azArg[1], "w");
      if( iotrace==0 ){
        utf8_printf(stderr, "Error: cannot open \"%s\"\n", azArg[1]);
        sqlite3IoTrace = 0;
        rc = 1;
      }else{
        sqlite3IoTrace = iotracePrintf;
      }
    }
  }else
#endif

  if( c=='l' && n>=5 && strncmp(azArg[0], "limits", n)==0 ){
    static const struct {
       const char *zLimitName;   /* Name of a limit */
       int limitCode;            /* Integer code for that limit */
    } aLimit[] = {
      { "length",                SQLITE_LIMIT_LENGTH                    },
      { "sql_length",            SQLITE_LIMIT_SQL_LENGTH                },
      { "column",                SQLITE_LIMIT_COLUMN                    },
      { "expr_depth",            SQLITE_LIMIT_EXPR_DEPTH                },
      { "compound_select",       SQLITE_LIMIT_COMPOUND_SELECT           },
      { "vdbe_op",               SQLITE_LIMIT_VDBE_OP                   },
      { "function_arg",          SQLITE_LIMIT_FUNCTION_ARG              },
      { "attached",              SQLITE_LIMIT_ATTACHED                  },
      { "like_pattern_length",   SQLITE_LIMIT_LIKE_PATTERN_LENGTH       },
      { "variable_number",       SQLITE_LIMIT_VARIABLE_NUMBER           },
      { "trigger_depth",         SQLITE_LIMIT_TRIGGER_DEPTH             },
      { "worker_threads",        SQLITE_LIMIT_WORKER_THREADS            },
    };
    int i, n2;
    open_db(p, 0);
    if( nArg==1 ){
      for(i=0; i<ArraySize(aLimit); i++){
        printf("%20s %d\n", aLimit[i].zLimitName,
               sqlite3_limit(p->db, aLimit[i].limitCode, -1));
      }
    }else if( nArg>3 ){
      raw_printf(stderr, "Usage: .limit NAME ?NEW-VALUE?\n");
      rc = 1;
      goto meta_command_exit;
    }else{
      int iLimit = -1;
      n2 = strlen30(azArg[1]);
      for(i=0; i<ArraySize(aLimit); i++){
        if( sqlite3_strnicmp(aLimit[i].zLimitName, azArg[1], n2)==0 ){
          if( iLimit<0 ){
            iLimit = i;
          }else{
            utf8_printf(stderr, "ambiguous limit: \"%s\"\n", azArg[1]);
            rc = 1;
            goto meta_command_exit;
          }
        }
      }
      if( iLimit<0 ){
        utf8_printf(stderr, "unknown limit: \"%s\"\n"
                        "enter \".limits\" with no arguments for a list.\n",
                         azArg[1]);
        rc = 1;
        goto meta_command_exit;
      }
      if( nArg==3 ){
        sqlite3_limit(p->db, aLimit[iLimit].limitCode,
                      (int)integerValue(azArg[2]));
      }
      printf("%20s %d\n", aLimit[iLimit].zLimitName,
             sqlite3_limit(p->db, aLimit[iLimit].limitCode, -1));
    }
  }else

  if( c=='l' && n>2 && strncmp(azArg[0], "lint", n)==0 ){
    open_db(p, 0);
    lintDotCommand(p, azArg, nArg);
  }else

#ifndef SQLITE_OMIT_LOAD_EXTENSION
  if( c=='l' && strncmp(azArg[0], "load", n)==0 ){
    const char *zFile, *zProc;
    char *zErrMsg = 0;
    if( nArg<2 ){
      raw_printf(stderr, "Usage: .load FILE ?ENTRYPOINT?\n");
      rc = 1;
      goto meta_command_exit;
    }
    zFile = azArg[1];
    zProc = nArg>=3 ? azArg[2] : 0;
    open_db(p, 0);
    rc = sqlite3_load_extension(p->db, zFile, zProc, &zErrMsg);
    if( rc!=SQLITE_OK ){
      utf8_printf(stderr, "Error: %s\n", zErrMsg);
      sqlite3_free(zErrMsg);
      rc = 1;
    }
  }else
#endif

  if( c=='l' && strncmp(azArg[0], "log", n)==0 ){
    if( nArg!=2 ){
      raw_printf(stderr, "Usage: .log FILENAME\n");
      rc = 1;
    }else{
      const char *zFile = azArg[1];
      output_file_close(p->pLog);
      p->pLog = output_file_open(zFile);
    }
  }else

  if( c=='m' && strncmp(azArg[0], "mode", n)==0 ){
    const char *zMode = nArg>=2 ? azArg[1] : "";
    int n2 = (int)strlen(zMode);
    int c2 = zMode[0];
    if( c2=='l' && n2>2 && strncmp(azArg[1],"lines",n2)==0 ){
      p->mode = MODE_Line;
      sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row);
    }else if( c2=='c' && strncmp(azArg[1],"columns",n2)==0 ){
      p->mode = MODE_Column;
      sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row);
    }else if( c2=='l' && n2>2 && strncmp(azArg[1],"list",n2)==0 ){
      p->mode = MODE_List;
      sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Column);
      sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row);
    }else if( c2=='h' && strncmp(azArg[1],"html",n2)==0 ){
      p->mode = MODE_Html;
    }else if( c2=='t' && strncmp(azArg[1],"tcl",n2)==0 ){
      p->mode = MODE_Tcl;
      sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Space);
      sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row);
    }else if( c2=='c' && strncmp(azArg[1],"csv",n2)==0 ){
      p->mode = MODE_Csv;
      sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Comma);
      sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_CrLf);
    }else if( c2=='t' && strncmp(azArg[1],"tabs",n2)==0 ){
      p->mode = MODE_List;
      sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Tab);
    }else if( c2=='i' && strncmp(azArg[1],"insert",n2)==0 ){
      p->mode = MODE_Insert;
      set_table_name(p, nArg>=3 ? azArg[2] : "table");
    }else if( c2=='q' && strncmp(azArg[1],"quote",n2)==0 ){
      p->mode = MODE_Quote;
    }else if( c2=='a' && strncmp(azArg[1],"ascii",n2)==0 ){
      p->mode = MODE_Ascii;
      sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Unit);
      sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Record);
    }else if( nArg==1 ){
      raw_printf(p->out, "current output mode: %s\n", modeDescr[p->mode]);
    }else{
      raw_printf(stderr, "Error: mode should be one of: "
         "ascii column csv html insert line list quote tabs tcl\n");
      rc = 1;
    }
    p->cMode = p->mode;
  }else

  if( c=='n' && strncmp(azArg[0], "nullvalue", n)==0 ){
    if( nArg==2 ){
      sqlite3_snprintf(sizeof(p->nullValue), p->nullValue,
                       "%.*s", (int)ArraySize(p->nullValue)-1, azArg[1]);
    }else{
      raw_printf(stderr, "Usage: .nullvalue STRING\n");
      rc = 1;
    }
  }else

  if( c=='o' && strncmp(azArg[0], "open", n)==0 && n>=2 ){
    char *zNewFilename;  /* Name of the database file to open */
    int iName = 1;       /* Index in azArg[] of the filename */
    int newFlag = 0;     /* True to delete file before opening */
    /* Close the existing database */
    session_close_all(p);
    sqlite3_close(p->db);
    p->db = 0;
    p->zDbFilename = 0;
    sqlite3_free(p->zFreeOnClose);
    p->zFreeOnClose = 0;
    /* Check for command-line arguments */
    for(iName=1; iName<nArg && azArg[iName][0]=='-'; iName++){
      const char *z = azArg[iName];
      if( optionMatch(z,"new") ){
        newFlag = 1;
      }else if( z[0]=='-' ){
        utf8_printf(stderr, "unknown option: %s\n", z);
        rc = 1;
        goto meta_command_exit;
      }
    }
    /* If a filename is specified, try to open it first */
    zNewFilename = nArg>iName ? sqlite3_mprintf("%s", azArg[iName]) : 0;
    if( zNewFilename ){
      if( newFlag ) shellDeleteFile(zNewFilename);
      p->zDbFilename = zNewFilename;
      open_db(p, 1);
      if( p->db==0 ){
        utf8_printf(stderr, "Error: cannot open '%s'\n", zNewFilename);
        sqlite3_free(zNewFilename);
      }else{
        p->zFreeOnClose = zNewFilename;
      }
    }
    if( p->db==0 ){
      /* As a fall-back open a TEMP database */
      p->zDbFilename = 0;
      open_db(p, 0);
    }
  }else

  if( c=='o'
   && (strncmp(azArg[0], "output", n)==0 || strncmp(azArg[0], "once", n)==0)
  ){
    const char *zFile = nArg>=2 ? azArg[1] : "stdout";
    if( nArg>2 ){
      utf8_printf(stderr, "Usage: .%s FILE\n", azArg[0]);
      rc = 1;
      goto meta_command_exit;
    }
    if( n>1 && strncmp(azArg[0], "once", n)==0 ){
      if( nArg<2 ){
        raw_printf(stderr, "Usage: .once FILE\n");
        rc = 1;
        goto meta_command_exit;
      }
      p->outCount = 2;
    }else{
      p->outCount = 0;
    }
    output_reset(p);
    if( zFile[0]=='|' ){
#ifdef SQLITE_OMIT_POPEN
      raw_printf(stderr, "Error: pipes are not supported in this OS\n");
      rc = 1;
      p->out = stdout;
#else
      p->out = popen(zFile + 1, "w");
      if( p->out==0 ){
        utf8_printf(stderr,"Error: cannot open pipe \"%s\"\n", zFile + 1);
        p->out = stdout;
        rc = 1;
      }else{
        sqlite3_snprintf(sizeof(p->outfile), p->outfile, "%s", zFile);
      }
#endif
    }else{
      p->out = output_file_open(zFile);
      if( p->out==0 ){
        if( strcmp(zFile,"off")!=0 ){
          utf8_printf(stderr,"Error: cannot write to \"%s\"\n", zFile);
        }
        p->out = stdout;
        rc = 1;
      } else {
        sqlite3_snprintf(sizeof(p->outfile), p->outfile, "%s", zFile);
      }
    }
  }else

  if( c=='p' && n>=3 && strncmp(azArg[0], "print", n)==0 ){
    int i;
    for(i=1; i<nArg; i++){
      if( i>1 ) raw_printf(p->out, " ");
      utf8_printf(p->out, "%s", azArg[i]);
    }
    raw_printf(p->out, "\n");
  }else

  if( c=='p' && strncmp(azArg[0], "prompt", n)==0 ){
    if( nArg >= 2) {
      strncpy(mainPrompt,azArg[1],(int)ArraySize(mainPrompt)-1);
    }
    if( nArg >= 3) {
      strncpy(continuePrompt,azArg[2],(int)ArraySize(continuePrompt)-1);
    }
  }else

  if( c=='q' && strncmp(azArg[0], "quit", n)==0 ){
    rc = 2;
  }else

  if( c=='r' && n>=3 && strncmp(azArg[0], "read", n)==0 ){
    FILE *alt;
    if( nArg!=2 ){
      raw_printf(stderr, "Usage: .read FILE\n");
      rc = 1;
      goto meta_command_exit;
    }
    alt = fopen(azArg[1], "rb");
    if( alt==0 ){
      utf8_printf(stderr,"Error: cannot open \"%s\"\n", azArg[1]);
      rc = 1;
    }else{
      rc = process_input(p, alt);
      fclose(alt);
    }
  }else

  if( c=='r' && n>=3 && strncmp(azArg[0], "restore", n)==0 ){
    const char *zSrcFile;
    const char *zDb;
    sqlite3 *pSrc;
    sqlite3_backup *pBackup;
    int nTimeout = 0;

    if( nArg==2 ){
      zSrcFile = azArg[1];
      zDb = "main";
    }else if( nArg==3 ){
      zSrcFile = azArg[2];
      zDb = azArg[1];
    }else{
      raw_printf(stderr, "Usage: .restore ?DB? FILE\n");
      rc = 1;
      goto meta_command_exit;
    }
    rc = sqlite3_open(zSrcFile, &pSrc);
    if( rc!=SQLITE_OK ){
      utf8_printf(stderr, "Error: cannot open \"%s\"\n", zSrcFile);
      sqlite3_close(pSrc);
      return 1;
    }
    open_db(p, 0);
    pBackup = sqlite3_backup_init(p->db, zDb, pSrc, "main");
    if( pBackup==0 ){
      utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(p->db));
      sqlite3_close(pSrc);
      return 1;
    }
    while( (rc = sqlite3_backup_step(pBackup,100))==SQLITE_OK
          || rc==SQLITE_BUSY  ){
      if( rc==SQLITE_BUSY ){
        if( nTimeout++ >= 3 ) break;
        sqlite3_sleep(100);
      }
    }
    sqlite3_backup_finish(pBackup);
    if( rc==SQLITE_DONE ){
      rc = 0;
    }else if( rc==SQLITE_BUSY || rc==SQLITE_LOCKED ){
      raw_printf(stderr, "Error: source database is busy\n");
      rc = 1;
    }else{
      utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(p->db));
      rc = 1;
    }
    sqlite3_close(pSrc);
  }else


  if( c=='s' && strncmp(azArg[0], "scanstats", n)==0 ){
    if( nArg==2 ){
      p->scanstatsOn = booleanValue(azArg[1]);
#ifndef SQLITE_ENABLE_STMT_SCANSTATUS
      raw_printf(stderr, "Warning: .scanstats not available in this build.\n");
#endif
    }else{
      raw_printf(stderr, "Usage: .scanstats on|off\n");
      rc = 1;
    }
  }else

  if( c=='s' && strncmp(azArg[0], "schema", n)==0 ){
    ShellText sSelect;
    ShellState data;
    char *zErrMsg = 0;
    const char *zDiv = 0;
    int iSchema = 0;

    open_db(p, 0);
    memcpy(&data, p, sizeof(data));
    data.showHeader = 0;
    data.cMode = data.mode = MODE_Semi;
    initText(&sSelect);
    if( nArg>=2 && optionMatch(azArg[1], "indent") ){
      data.cMode = data.mode = MODE_Pretty;
      nArg--;
      if( nArg==2 ) azArg[1] = azArg[2];
    }
    if( nArg==2 && azArg[1][0]!='-' ){
      int i;
      for(i=0; azArg[1][i]; i++) azArg[1][i] = ToLower(azArg[1][i]);
      if( strcmp(azArg[1],"sqlite_master")==0 ){
        char *new_argv[2], *new_colv[2];
        new_argv[0] = "CREATE TABLE sqlite_master (\n"
                      "  type text,\n"
                      "  name text,\n"
                      "  tbl_name text,\n"
                      "  rootpage integer,\n"
                      "  sql text\n"
                      ")";
        new_argv[1] = 0;
        new_colv[0] = "sql";
        new_colv[1] = 0;
        callback(&data, 1, new_argv, new_colv);
        rc = SQLITE_OK;
      }else if( strcmp(azArg[1],"sqlite_temp_master")==0 ){
        char *new_argv[2], *new_colv[2];
        new_argv[0] = "CREATE TEMP TABLE sqlite_temp_master (\n"
                      "  type text,\n"
                      "  name text,\n"
                      "  tbl_name text,\n"
                      "  rootpage integer,\n"
                      "  sql text\n"
                      ")";
        new_argv[1] = 0;
        new_colv[0] = "sql";
        new_colv[1] = 0;
        callback(&data, 1, new_argv, new_colv);
        rc = SQLITE_OK;
      }else{
        zDiv = "(";
      }
    }else if( nArg==1 ){
      zDiv = "(";
    }else{
      raw_printf(stderr, "Usage: .schema ?--indent? ?LIKE-PATTERN?\n");
      rc = 1;
      goto meta_command_exit;
    }
    if( zDiv ){
      sqlite3_stmt *pStmt = 0;
      rc = sqlite3_prepare_v2(p->db, "SELECT name FROM pragma_database_list",
                              -1, &pStmt, 0);
      if( rc ){
        utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(p->db));
        sqlite3_finalize(pStmt);
        rc = 1;
        goto meta_command_exit;
      }
      appendText(&sSelect, "SELECT sql FROM", 0);
      iSchema = 0;
      while( sqlite3_step(pStmt)==SQLITE_ROW ){
        const char *zDb = (const char*)sqlite3_column_text(pStmt, 0);
        char zScNum[30];
        sqlite3_snprintf(sizeof(zScNum), zScNum, "%d", ++iSchema);
        appendText(&sSelect, zDiv, 0);
        zDiv = " UNION ALL ";
        if( strcmp(zDb, "main")!=0 ){
          appendText(&sSelect, "SELECT shell_add_schema(sql,", 0);
          appendText(&sSelect, zDb, '"');
          appendText(&sSelect, ") AS sql, type, tbl_name, name, rowid,", 0);
          appendText(&sSelect, zScNum, 0);
          appendText(&sSelect, " AS snum, ", 0);
          appendText(&sSelect, zDb, '\'');
          appendText(&sSelect, " AS sname FROM ", 0);
          appendText(&sSelect, zDb, '"');
          appendText(&sSelect, ".sqlite_master", 0);
        }else{
          appendText(&sSelect, "SELECT sql, type, tbl_name, name, rowid, ", 0);
          appendText(&sSelect, zScNum, 0);
          appendText(&sSelect, " AS snum, 'main' AS sname FROM sqlite_master",0);
        }
      }
      sqlite3_finalize(pStmt);
      appendText(&sSelect, ") WHERE ", 0);
      if( nArg>1 ){
        char *zQarg = sqlite3_mprintf("%Q", azArg[1]);
        if( strchr(azArg[1], '.') ){
          appendText(&sSelect, "lower(printf('%s.%s',sname,tbl_name))", 0);
        }else{
          appendText(&sSelect, "lower(tbl_name)", 0);
        }
        appendText(&sSelect, strchr(azArg[1], '*') ? " GLOB " : " LIKE ", 0);
        appendText(&sSelect, zQarg, 0);
        appendText(&sSelect, " AND ", 0);
        sqlite3_free(zQarg);
      }
      appendText(&sSelect, "type!='meta' AND sql IS NOT NULL"
                           " ORDER BY snum, rowid", 0);
      rc = sqlite3_exec(p->db, sSelect.z, callback, &data, &zErrMsg);
      freeText(&sSelect);
    }
    if( zErrMsg ){
      utf8_printf(stderr,"Error: %s\n", zErrMsg);
      sqlite3_free(zErrMsg);
      rc = 1;
    }else if( rc != SQLITE_OK ){
      raw_printf(stderr,"Error: querying schema information\n");
      rc = 1;
    }else{
      rc = 0;
    }
  }else

#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_SELECTTRACE)
  if( c=='s' && n==11 && strncmp(azArg[0], "selecttrace", n)==0 ){
    sqlite3SelectTrace = (int)integerValue(azArg[1]);
  }else
#endif

#if defined(SQLITE_ENABLE_SESSION)
  if( c=='s' && strncmp(azArg[0],"session",n)==0 && n>=3 ){
    OpenSession *pSession = &p->aSession[0];
    char **azCmd = &azArg[1];
    int iSes = 0;
    int nCmd = nArg - 1;
    int i;
    if( nArg<=1 ) goto session_syntax_error;
    open_db(p, 0);
    if( nArg>=3 ){
      for(iSes=0; iSes<p->nSession; iSes++){
        if( strcmp(p->aSession[iSes].zName, azArg[1])==0 ) break;
      }
      if( iSes<p->nSession ){
        pSession = &p->aSession[iSes];
        azCmd++;
        nCmd--;
      }else{
        pSession = &p->aSession[0];
        iSes = 0;
      }
    }

    /* .session attach TABLE
    ** Invoke the sqlite3session_attach() interface to attach a particular
    ** table so that it is never filtered.
    */
    if( strcmp(azCmd[0],"attach")==0 ){
      if( nCmd!=2 ) goto session_syntax_error;
      if( pSession->p==0 ){
        session_not_open:
        raw_printf(stderr, "ERROR: No sessions are open\n");
      }else{
        rc = sqlite3session_attach(pSession->p, azCmd[1]);
        if( rc ){
          raw_printf(stderr, "ERROR: sqlite3session_attach() returns %d\n", rc);
          rc = 0;
        }
      }
    }else

    /* .session changeset FILE
    ** .session patchset FILE
    ** Write a changeset or patchset into a file.  The file is overwritten.
    */
    if( strcmp(azCmd[0],"changeset")==0 || strcmp(azCmd[0],"patchset")==0 ){
      FILE *out = 0;
      if( nCmd!=2 ) goto session_syntax_error;
      if( pSession->p==0 ) goto session_not_open;
      out = fopen(azCmd[1], "wb");
      if( out==0 ){
        utf8_printf(stderr, "ERROR: cannot open \"%s\" for writing\n", azCmd[1]);
      }else{
        int szChng;
        void *pChng;
        if( azCmd[0][0]=='c' ){
          rc = sqlite3session_changeset(pSession->p, &szChng, &pChng);
        }else{
          rc = sqlite3session_patchset(pSession->p, &szChng, &pChng);
        }
        if( rc ){
          printf("Error: error code %d\n", rc);
          rc = 0;
        }
        if( pChng
          && fwrite(pChng, szChng, 1, out)!=1 ){
          raw_printf(stderr, "ERROR: Failed to write entire %d-byte output\n",
                  szChng);
        }
        sqlite3_free(pChng);
        fclose(out);
      }
    }else

    /* .session close
    ** Close the identified session
    */
    if( strcmp(azCmd[0], "close")==0 ){
      if( nCmd!=1 ) goto session_syntax_error;
      if( p->nSession ){
        session_close(pSession);
        p->aSession[iSes] = p->aSession[--p->nSession];
      }
    }else

    /* .session enable ?BOOLEAN?
    ** Query or set the enable flag
    */
    if( strcmp(azCmd[0], "enable")==0 ){
      int ii;
      if( nCmd>2 ) goto session_syntax_error;
      ii = nCmd==1 ? -1 : booleanValue(azCmd[1]);
      if( p->nSession ){
        ii = sqlite3session_enable(pSession->p, ii);
        utf8_printf(p->out, "session %s enable flag = %d\n",
                    pSession->zName, ii);
      }
    }else

    /* .session filter GLOB ....
    ** Set a list of GLOB patterns of table names to be excluded.
    */
    if( strcmp(azCmd[0], "filter")==0 ){
      int ii, nByte;
      if( nCmd<2 ) goto session_syntax_error;
      if( p->nSession ){
        for(ii=0; ii<pSession->nFilter; ii++){
          sqlite3_free(pSession->azFilter[ii]);
        }
        sqlite3_free(pSession->azFilter);
        nByte = sizeof(pSession->azFilter[0])*(nCmd-1);
        pSession->azFilter = sqlite3_malloc( nByte );
        if( pSession->azFilter==0 ){
          raw_printf(stderr, "Error: out or memory\n");
          exit(1);
        }
        for(ii=1; ii<nCmd; ii++){
          pSession->azFilter[ii-1] = sqlite3_mprintf("%s", azCmd[ii]);
        }
        pSession->nFilter = ii-1;
      }
    }else

    /* .session indirect ?BOOLEAN?
    ** Query or set the indirect flag
    */
    if( strcmp(azCmd[0], "indirect")==0 ){
      int ii;
      if( nCmd>2 ) goto session_syntax_error;
      ii = nCmd==1 ? -1 : booleanValue(azCmd[1]);
      if( p->nSession ){
        ii = sqlite3session_indirect(pSession->p, ii);
        utf8_printf(p->out, "session %s indirect flag = %d\n",
                    pSession->zName, ii);
      }
    }else

    /* .session isempty
    ** Determine if the session is empty
    */
    if( strcmp(azCmd[0], "isempty")==0 ){
      int ii;
      if( nCmd!=1 ) goto session_syntax_error;
      if( p->nSession ){
        ii = sqlite3session_isempty(pSession->p);
        utf8_printf(p->out, "session %s isempty flag = %d\n",
                    pSession->zName, ii);
      }
    }else

    /* .session list
    ** List all currently open sessions
    */
    if( strcmp(azCmd[0],"list")==0 ){
      for(i=0; i<p->nSession; i++){
        utf8_printf(p->out, "%d %s\n", i, p->aSession[i].zName);
      }
    }else

    /* .session open DB NAME
    ** Open a new session called NAME on the attached database DB.
    ** DB is normally "main".
    */
    if( strcmp(azCmd[0],"open")==0 ){
      char *zName;
      if( nCmd!=3 ) goto session_syntax_error;
      zName = azCmd[2];
      if( zName[0]==0 ) goto session_syntax_error;
      for(i=0; i<p->nSession; i++){
        if( strcmp(p->aSession[i].zName,zName)==0 ){
          utf8_printf(stderr, "Session \"%s\" already exists\n", zName);
          goto meta_command_exit;
        }
      }
      if( p->nSession>=ArraySize(p->aSession) ){
        raw_printf(stderr, "Maximum of %d sessions\n", ArraySize(p->aSession));
        goto meta_command_exit;
      }
      pSession = &p->aSession[p->nSession];
      rc = sqlite3session_create(p->db, azCmd[1], &pSession->p);
      if( rc ){
        raw_printf(stderr, "Cannot open session: error code=%d\n", rc);
        rc = 0;
        goto meta_command_exit;
      }
      pSession->nFilter = 0;
      sqlite3session_table_filter(pSession->p, session_filter, pSession);
      p->nSession++;
      pSession->zName = sqlite3_mprintf("%s", zName);
    }else
    /* If no command name matches, show a syntax error */
    session_syntax_error:
    session_help(p);
  }else
#endif

#ifdef SQLITE_DEBUG
  /* Undocumented commands for internal testing.  Subject to change
  ** without notice. */
  if( c=='s' && n>=10 && strncmp(azArg[0], "selftest-", 9)==0 ){
    if( strncmp(azArg[0]+9, "boolean", n-9)==0 ){
      int i, v;
      for(i=1; i<nArg; i++){
        v = booleanValue(azArg[i]);
        utf8_printf(p->out, "%s: %d 0x%x\n", azArg[i], v, v);
      }
    }
    if( strncmp(azArg[0]+9, "integer", n-9)==0 ){
      int i; sqlite3_int64 v;
      for(i=1; i<nArg; i++){
        char zBuf[200];
        v = integerValue(azArg[i]);
        sqlite3_snprintf(sizeof(zBuf),zBuf,"%s: %lld 0x%llx\n", azArg[i],v,v);
        utf8_printf(p->out, "%s", zBuf);
      }
    }
  }else
#endif

  if( c=='s' && n>=4 && strncmp(azArg[0],"selftest",n)==0 ){
    int bIsInit = 0;         /* True to initialize the SELFTEST table */
    int bVerbose = 0;        /* Verbose output */
    int bSelftestExists;     /* True if SELFTEST already exists */
    int i, k;                /* Loop counters */
    int nTest = 0;           /* Number of tests runs */
    int nErr = 0;            /* Number of errors seen */
    ShellText str;           /* Answer for a query */
    sqlite3_stmt *pStmt = 0; /* Query against the SELFTEST table */

    open_db(p,0);
    for(i=1; i<nArg; i++){
      const char *z = azArg[i];
      if( z[0]=='-' && z[1]=='-' ) z++;
      if( strcmp(z,"-init")==0 ){
        bIsInit = 1;
      }else
      if( strcmp(z,"-v")==0 ){
        bVerbose++;
      }else
      {
        utf8_printf(stderr, "Unknown option \"%s\" on \"%s\"\n",
                    azArg[i], azArg[0]);
        raw_printf(stderr, "Should be one of: --init -v\n");
        rc = 1;
        goto meta_command_exit;
      }
    }
    if( sqlite3_table_column_metadata(p->db,"main","selftest",0,0,0,0,0,0)
           != SQLITE_OK ){
      bSelftestExists = 0;
    }else{
      bSelftestExists = 1;
    }
    if( bIsInit ){
      createSelftestTable(p);
      bSelftestExists = 1;
    }
    initText(&str);
    appendText(&str, "x", 0);
    for(k=bSelftestExists; k>=0; k--){
      if( k==1 ){
        rc = sqlite3_prepare_v2(p->db,
            "SELECT tno,op,cmd,ans FROM selftest ORDER BY tno",
            -1, &pStmt, 0);
      }else{
        rc = sqlite3_prepare_v2(p->db,
          "VALUES(0,'memo','Missing SELFTEST table - default checks only',''),"
          "      (1,'run','PRAGMA integrity_check','ok')",
          -1, &pStmt, 0);
      }
      if( rc ){
        raw_printf(stderr, "Error querying the selftest table\n");
        rc = 1;
        sqlite3_finalize(pStmt);
        goto meta_command_exit;
      }
      for(i=1; sqlite3_step(pStmt)==SQLITE_ROW; i++){
        int tno = sqlite3_column_int(pStmt, 0);
        const char *zOp = (const char*)sqlite3_column_text(pStmt, 1);
        const char *zSql = (const char*)sqlite3_column_text(pStmt, 2);
        const char *zAns = (const char*)sqlite3_column_text(pStmt, 3);

        k = 0;
        if( bVerbose>0 ){
          char *zQuote = sqlite3_mprintf("%q", zSql);
          printf("%d: %s %s\n", tno, zOp, zSql);
          sqlite3_free(zQuote);
        }
        if( strcmp(zOp,"memo")==0 ){
          utf8_printf(p->out, "%s\n", zSql);
        }else
        if( strcmp(zOp,"run")==0 ){
          char *zErrMsg = 0;
          str.n = 0;
          str.z[0] = 0;
          rc = sqlite3_exec(p->db, zSql, captureOutputCallback, &str, &zErrMsg);
          nTest++;
          if( bVerbose ){
            utf8_printf(p->out, "Result: %s\n", str.z);
          }
          if( rc || zErrMsg ){
            nErr++;
            rc = 1;
            utf8_printf(p->out, "%d: error-code-%d: %s\n", tno, rc, zErrMsg);
            sqlite3_free(zErrMsg);
          }else if( strcmp(zAns,str.z)!=0 ){
            nErr++;
            rc = 1;
            utf8_printf(p->out, "%d: Expected: [%s]\n", tno, zAns);
            utf8_printf(p->out, "%d:      Got: [%s]\n", tno, str.z);
          }
        }else
        {
          utf8_printf(stderr,
            "Unknown operation \"%s\" on selftest line %d\n", zOp, tno);
          rc = 1;
          break;
        }
      } /* End loop over rows of content from SELFTEST */
      sqlite3_finalize(pStmt);
    } /* End loop over k */
    freeText(&str);
    utf8_printf(p->out, "%d errors out of %d tests\n", nErr, nTest);
  }else

  if( c=='s' && strncmp(azArg[0], "separator", n)==0 ){
    if( nArg<2 || nArg>3 ){
      raw_printf(stderr, "Usage: .separator COL ?ROW?\n");
      rc = 1;
    }
    if( nArg>=2 ){
      sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator,
                       "%.*s", (int)ArraySize(p->colSeparator)-1, azArg[1]);
    }
    if( nArg>=3 ){
      sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator,
                       "%.*s", (int)ArraySize(p->rowSeparator)-1, azArg[2]);
    }
  }else

  if( c=='s' && n>=4 && strncmp(azArg[0],"sha3sum",n)==0 ){
    const char *zLike = 0;   /* Which table to checksum. 0 means everything */
    int i;                   /* Loop counter */
    int bSchema = 0;         /* Also hash the schema */
    int bSeparate = 0;       /* Hash each table separately */
    int iSize = 224;         /* Hash algorithm to use */
    int bDebug = 0;          /* Only show the query that would have run */
    sqlite3_stmt *pStmt;     /* For querying tables names */
    char *zSql;              /* SQL to be run */
    char *zSep;              /* Separator */
    ShellText sSql;          /* Complete SQL for the query to run the hash */
    ShellText sQuery;        /* Set of queries used to read all content */
    open_db(p, 0);
    for(i=1; i<nArg; i++){
      const char *z = azArg[i];
      if( z[0]=='-' ){
        z++;
        if( z[0]=='-' ) z++;
        if( strcmp(z,"schema")==0 ){
          bSchema = 1;
        }else
        if( strcmp(z,"sha3-224")==0 || strcmp(z,"sha3-256")==0
         || strcmp(z,"sha3-384")==0 || strcmp(z,"sha3-512")==0
        ){
          iSize = atoi(&z[5]);
        }else
        if( strcmp(z,"debug")==0 ){
          bDebug = 1;
        }else
        {
          utf8_printf(stderr, "Unknown option \"%s\" on \"%s\"\n",
                      azArg[i], azArg[0]);
          raw_printf(stderr, "Should be one of: --schema"
                             " --sha3-224 --sha3-255 --sha3-384 --sha3-512\n");
          rc = 1;
          goto meta_command_exit;
        }
      }else if( zLike ){
        raw_printf(stderr, "Usage: .sha3sum ?OPTIONS? ?LIKE-PATTERN?\n");
        rc = 1;
        goto meta_command_exit;
      }else{
        zLike = z;
        bSeparate = 1;
        if( sqlite3_strlike("sqlite_%", zLike, 0)==0 ) bSchema = 1;
      }
    }
    if( bSchema ){
      zSql = "SELECT lower(name) FROM sqlite_master"
             " WHERE type='table' AND coalesce(rootpage,0)>1"
             " UNION ALL SELECT 'sqlite_master'"
             " ORDER BY 1 collate nocase";
    }else{
      zSql = "SELECT lower(name) FROM sqlite_master"
             " WHERE type='table' AND coalesce(rootpage,0)>1"
             " AND name NOT LIKE 'sqlite_%'"
             " ORDER BY 1 collate nocase";
    }
    sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
    initText(&sQuery);
    initText(&sSql);
    appendText(&sSql, "WITH [sha3sum$query](a,b) AS(",0);
    zSep = "VALUES(";
    while( SQLITE_ROW==sqlite3_step(pStmt) ){
      const char *zTab = (const char*)sqlite3_column_text(pStmt,0);
      if( zLike && sqlite3_strlike(zLike, zTab, 0)!=0 ) continue;
      if( strncmp(zTab, "sqlite_",7)!=0 ){
        appendText(&sQuery,"SELECT * FROM ", 0);
        appendText(&sQuery,zTab,'"');
        appendText(&sQuery," NOT INDEXED;", 0);
      }else if( strcmp(zTab, "sqlite_master")==0 ){
        appendText(&sQuery,"SELECT type,name,tbl_name,sql FROM sqlite_master"
                           " ORDER BY name;", 0);
      }else if( strcmp(zTab, "sqlite_sequence")==0 ){
        appendText(&sQuery,"SELECT name,seq FROM sqlite_sequence"
                           " ORDER BY name;", 0);
      }else if( strcmp(zTab, "sqlite_stat1")==0 ){
        appendText(&sQuery,"SELECT tbl,idx,stat FROM sqlite_stat1"
                           " ORDER BY tbl,idx;", 0);
      }else if( strcmp(zTab, "sqlite_stat3")==0
             || strcmp(zTab, "sqlite_stat4")==0 ){
        appendText(&sQuery, "SELECT * FROM ", 0);
        appendText(&sQuery, zTab, 0);
        appendText(&sQuery, " ORDER BY tbl, idx, rowid;\n", 0);
      }
      appendText(&sSql, zSep, 0);
      appendText(&sSql, sQuery.z, '\'');
      sQuery.n = 0;
      appendText(&sSql, ",", 0);
      appendText(&sSql, zTab, '\'');
      zSep = "),(";
    }
    sqlite3_finalize(pStmt);
    if( bSeparate ){
      zSql = sqlite3_mprintf(
          "%s))"
          " SELECT lower(hex(sha3_query(a,%d))) AS hash, b AS label"
          "   FROM [sha3sum$query]",
          sSql.z, iSize);
    }else{
      zSql = sqlite3_mprintf(
          "%s))"
          " SELECT lower(hex(sha3_query(group_concat(a,''),%d))) AS hash"
          "   FROM [sha3sum$query]",
          sSql.z, iSize);
    }
    freeText(&sQuery);
    freeText(&sSql);
    if( bDebug ){
      utf8_printf(p->out, "%s\n", zSql);
    }else{
      shell_exec(p->db, zSql, shell_callback, p, 0);
    }
    sqlite3_free(zSql);
  }else

  if( c=='s'
   && (strncmp(azArg[0], "shell", n)==0 || strncmp(azArg[0],"system",n)==0)
  ){
    char *zCmd;
    int i, x;
    if( nArg<2 ){
      raw_printf(stderr, "Usage: .system COMMAND\n");
      rc = 1;
      goto meta_command_exit;
    }
    zCmd = sqlite3_mprintf(strchr(azArg[1],' ')==0?"%s":"\"%s\"", azArg[1]);
    for(i=2; i<nArg; i++){
      zCmd = sqlite3_mprintf(strchr(azArg[i],' ')==0?"%z %s":"%z \"%s\"",
                             zCmd, azArg[i]);
    }
    x = system(zCmd);
    sqlite3_free(zCmd);
    if( x ) raw_printf(stderr, "System command returns %d\n", x);
  }else

  if( c=='s' && strncmp(azArg[0], "show", n)==0 ){
    static const char *azBool[] = { "off", "on", "full", "unk" };
    int i;
    if( nArg!=1 ){
      raw_printf(stderr, "Usage: .show\n");
      rc = 1;
      goto meta_command_exit;
    }
    utf8_printf(p->out, "%12.12s: %s\n","echo",
                                  azBool[ShellHasFlag(p, SHFLG_Echo)]);
    utf8_printf(p->out, "%12.12s: %s\n","eqp", azBool[p->autoEQP&3]);
    utf8_printf(p->out, "%12.12s: %s\n","explain",
         p->mode==MODE_Explain ? "on" : p->autoExplain ? "auto" : "off");
    utf8_printf(p->out,"%12.12s: %s\n","headers", azBool[p->showHeader!=0]);
    utf8_printf(p->out, "%12.12s: %s\n","mode", modeDescr[p->mode]);
    utf8_printf(p->out, "%12.12s: ", "nullvalue");
      output_c_string(p->out, p->nullValue);
      raw_printf(p->out, "\n");
    utf8_printf(p->out,"%12.12s: %s\n","output",
            strlen30(p->outfile) ? p->outfile : "stdout");
    utf8_printf(p->out,"%12.12s: ", "colseparator");
      output_c_string(p->out, p->colSeparator);
      raw_printf(p->out, "\n");
    utf8_printf(p->out,"%12.12s: ", "rowseparator");
      output_c_string(p->out, p->rowSeparator);
      raw_printf(p->out, "\n");
    utf8_printf(p->out, "%12.12s: %s\n","stats", azBool[p->statsOn!=0]);
    utf8_printf(p->out, "%12.12s: ", "width");
    for (i=0;i<(int)ArraySize(p->colWidth) && p->colWidth[i] != 0;i++) {
      raw_printf(p->out, "%d ", p->colWidth[i]);
    }
    raw_printf(p->out, "\n");
    utf8_printf(p->out, "%12.12s: %s\n", "filename",
                p->zDbFilename ? p->zDbFilename : "");
  }else

  if( c=='s' && strncmp(azArg[0], "stats", n)==0 ){
    if( nArg==2 ){
      p->statsOn = booleanValue(azArg[1]);
    }else if( nArg==1 ){
      display_stats(p->db, p, 0);
    }else{
      raw_printf(stderr, "Usage: .stats ?on|off?\n");
      rc = 1;
    }
  }else

  if( (c=='t' && n>1 && strncmp(azArg[0], "tables", n)==0)
   || (c=='i' && (strncmp(azArg[0], "indices", n)==0
                 || strncmp(azArg[0], "indexes", n)==0) )
  ){
    sqlite3_stmt *pStmt;
    char **azResult;
    int nRow, nAlloc;
    int ii;
    ShellText s;
    initText(&s);
    open_db(p, 0);
    rc = sqlite3_prepare_v2(p->db, "PRAGMA database_list", -1, &pStmt, 0);
    if( rc ) return shellDatabaseError(p->db);

    if( nArg>2 && c=='i' ){
      /* It is an historical accident that the .indexes command shows an error
      ** when called with the wrong number of arguments whereas the .tables
      ** command does not. */
      raw_printf(stderr, "Usage: .indexes ?LIKE-PATTERN?\n");
      rc = 1;
      goto meta_command_exit;
    }
    for(ii=0; sqlite3_step(pStmt)==SQLITE_ROW; ii++){
      const char *zDbName = (const char*)sqlite3_column_text(pStmt, 1);
      if( zDbName==0 ) continue;
      if( s.z && s.z[0] ) appendText(&s, " UNION ALL ", 0);
      if( sqlite3_stricmp(zDbName, "main")==0 ){
        appendText(&s, "SELECT name FROM ", 0);
      }else{
        appendText(&s, "SELECT ", 0);
        appendText(&s, zDbName, '\'');
        appendText(&s, "||'.'||name FROM ", 0);
      }
      appendText(&s, zDbName, '"');
      appendText(&s, ".sqlite_master ", 0);
      if( c=='t' ){
        appendText(&s," WHERE type IN ('table','view')"
                      "   AND name NOT LIKE 'sqlite_%'"
                      "   AND name LIKE ?1", 0);
      }else{
        appendText(&s," WHERE type='index'"
                      "   AND tbl_name LIKE ?1", 0);
      }
    }
    rc = sqlite3_finalize(pStmt);
    appendText(&s, " ORDER BY 1", 0);
    rc = sqlite3_prepare_v2(p->db, s.z, -1, &pStmt, 0);
    freeText(&s);
    if( rc ) return shellDatabaseError(p->db);

    /* Run the SQL statement prepared by the above block. Store the results
    ** as an array of nul-terminated strings in azResult[].  */
    nRow = nAlloc = 0;
    azResult = 0;
    if( nArg>1 ){
      sqlite3_bind_text(pStmt, 1, azArg[1], -1, SQLITE_TRANSIENT);
    }else{
      sqlite3_bind_text(pStmt, 1, "%", -1, SQLITE_STATIC);
    }
    while( sqlite3_step(pStmt)==SQLITE_ROW ){
      if( nRow>=nAlloc ){
        char **azNew;
        int n2 = nAlloc*2 + 10;
        azNew = sqlite3_realloc64(azResult, sizeof(azResult[0])*n2);
        if( azNew==0 ){
          rc = shellNomemError();
          break;
        }
        nAlloc = n2;
        azResult = azNew;
      }
      azResult[nRow] = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 0));
      if( 0==azResult[nRow] ){
        rc = shellNomemError();
        break;
      }
      nRow++;
    }
    if( sqlite3_finalize(pStmt)!=SQLITE_OK ){
      rc = shellDatabaseError(p->db);
    }

    /* Pretty-print the contents of array azResult[] to the output */
    if( rc==0 && nRow>0 ){
      int len, maxlen = 0;
      int i, j;
      int nPrintCol, nPrintRow;
      for(i=0; i<nRow; i++){
        len = strlen30(azResult[i]);
        if( len>maxlen ) maxlen = len;
      }
      nPrintCol = 80/(maxlen+2);
      if( nPrintCol<1 ) nPrintCol = 1;
      nPrintRow = (nRow + nPrintCol - 1)/nPrintCol;
      for(i=0; i<nPrintRow; i++){
        for(j=i; j<nRow; j+=nPrintRow){
          char *zSp = j<nPrintRow ? "" : "  ";
          utf8_printf(p->out, "%s%-*s", zSp, maxlen,
                      azResult[j] ? azResult[j]:"");
        }
        raw_printf(p->out, "\n");
      }
    }

    for(ii=0; ii<nRow; ii++) sqlite3_free(azResult[ii]);
    sqlite3_free(azResult);
  }else

  /* Begin redirecting output to the file "testcase-out.txt" */
  if( c=='t' && strcmp(azArg[0],"testcase")==0 ){
    output_reset(p);
    p->out = output_file_open("testcase-out.txt");
    if( p->out==0 ){
      raw_printf(stderr, "Error: cannot open 'testcase-out.txt'\n");
    }
    if( nArg>=2 ){
      sqlite3_snprintf(sizeof(p->zTestcase), p->zTestcase, "%s", azArg[1]);
    }else{
      sqlite3_snprintf(sizeof(p->zTestcase), p->zTestcase, "?");
    }
  }else

#ifndef SQLITE_UNTESTABLE
  if( c=='t' && n>=8 && strncmp(azArg[0], "testctrl", n)==0 && nArg>=2 ){
    static const struct {
       const char *zCtrlName;   /* Name of a test-control option */
       int ctrlCode;            /* Integer code for that option */
    } aCtrl[] = {
      { "prng_save",             SQLITE_TESTCTRL_PRNG_SAVE              },
      { "prng_restore",          SQLITE_TESTCTRL_PRNG_RESTORE           },
      { "prng_reset",            SQLITE_TESTCTRL_PRNG_RESET             },
      { "bitvec_test",           SQLITE_TESTCTRL_BITVEC_TEST            },
      { "fault_install",         SQLITE_TESTCTRL_FAULT_INSTALL          },
      { "benign_malloc_hooks",   SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS    },
      { "pending_byte",          SQLITE_TESTCTRL_PENDING_BYTE           },
      { "assert",                SQLITE_TESTCTRL_ASSERT                 },
      { "always",                SQLITE_TESTCTRL_ALWAYS                 },
      { "reserve",               SQLITE_TESTCTRL_RESERVE                },
      { "optimizations",         SQLITE_TESTCTRL_OPTIMIZATIONS          },
      { "iskeyword",             SQLITE_TESTCTRL_ISKEYWORD              },
      { "scratchmalloc",         SQLITE_TESTCTRL_SCRATCHMALLOC          },
      { "byteorder",             SQLITE_TESTCTRL_BYTEORDER              },
      { "never_corrupt",         SQLITE_TESTCTRL_NEVER_CORRUPT          },
      { "imposter",              SQLITE_TESTCTRL_IMPOSTER               },
    };
    int testctrl = -1;
    int rc2 = 0;
    int i, n2;
    open_db(p, 0);

    /* convert testctrl text option to value. allow any unique prefix
    ** of the option name, or a numerical value. */
    n2 = strlen30(azArg[1]);
    for(i=0; i<ArraySize(aCtrl); i++){
      if( strncmp(azArg[1], aCtrl[i].zCtrlName, n2)==0 ){
        if( testctrl<0 ){
          testctrl = aCtrl[i].ctrlCode;
        }else{
          utf8_printf(stderr, "ambiguous option name: \"%s\"\n", azArg[1]);
          testctrl = -1;
          break;
        }
      }
    }
    if( testctrl<0 ) testctrl = (int)integerValue(azArg[1]);
    if( (testctrl<SQLITE_TESTCTRL_FIRST) || (testctrl>SQLITE_TESTCTRL_LAST) ){
      utf8_printf(stderr,"Error: invalid testctrl option: %s\n", azArg[1]);
    }else{
      switch(testctrl){

        /* sqlite3_test_control(int, db, int) */
        case SQLITE_TESTCTRL_OPTIMIZATIONS:
        case SQLITE_TESTCTRL_RESERVE:
          if( nArg==3 ){
            int opt = (int)strtol(azArg[2], 0, 0);
            rc2 = sqlite3_test_control(testctrl, p->db, opt);
            raw_printf(p->out, "%d (0x%08x)\n", rc2, rc2);
          } else {
            utf8_printf(stderr,"Error: testctrl %s takes a single int option\n",
                    azArg[1]);
          }
          break;

        /* sqlite3_test_control(int) */
        case SQLITE_TESTCTRL_PRNG_SAVE:
        case SQLITE_TESTCTRL_PRNG_RESTORE:
        case SQLITE_TESTCTRL_PRNG_RESET:
        case SQLITE_TESTCTRL_BYTEORDER:
          if( nArg==2 ){
            rc2 = sqlite3_test_control(testctrl);
            raw_printf(p->out, "%d (0x%08x)\n", rc2, rc2);
          } else {
            utf8_printf(stderr,"Error: testctrl %s takes no options\n",
                        azArg[1]);
          }
          break;

        /* sqlite3_test_control(int, uint) */
        case SQLITE_TESTCTRL_PENDING_BYTE:
          if( nArg==3 ){
            unsigned int opt = (unsigned int)integerValue(azArg[2]);
            rc2 = sqlite3_test_control(testctrl, opt);
            raw_printf(p->out, "%d (0x%08x)\n", rc2, rc2);
          } else {
            utf8_printf(stderr,"Error: testctrl %s takes a single unsigned"
                           " int option\n", azArg[1]);
          }
          break;

        /* sqlite3_test_control(int, int) */
        case SQLITE_TESTCTRL_ASSERT:
        case SQLITE_TESTCTRL_ALWAYS:
        case SQLITE_TESTCTRL_NEVER_CORRUPT:
          if( nArg==3 ){
            int opt = booleanValue(azArg[2]);
            rc2 = sqlite3_test_control(testctrl, opt);
            raw_printf(p->out, "%d (0x%08x)\n", rc2, rc2);
          } else {
            utf8_printf(stderr,"Error: testctrl %s takes a single int option\n",
                            azArg[1]);
          }
          break;

        /* sqlite3_test_control(int, char *) */
#ifdef SQLITE_N_KEYWORD
        case SQLITE_TESTCTRL_ISKEYWORD:
          if( nArg==3 ){
            const char *opt = azArg[2];
            rc2 = sqlite3_test_control(testctrl, opt);
            raw_printf(p->out, "%d (0x%08x)\n", rc2, rc2);
          } else {
            utf8_printf(stderr,
                        "Error: testctrl %s takes a single char * option\n",
                        azArg[1]);
          }
          break;
#endif

        case SQLITE_TESTCTRL_IMPOSTER:
          if( nArg==5 ){
            rc2 = sqlite3_test_control(testctrl, p->db,
                          azArg[2],
                          integerValue(azArg[3]),
                          integerValue(azArg[4]));
            raw_printf(p->out, "%d (0x%08x)\n", rc2, rc2);
          }else{
            raw_printf(stderr,"Usage: .testctrl imposter dbName onoff tnum\n");
          }
          break;

        case SQLITE_TESTCTRL_BITVEC_TEST:
        case SQLITE_TESTCTRL_FAULT_INSTALL:
        case SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS:
        case SQLITE_TESTCTRL_SCRATCHMALLOC:
        default:
          utf8_printf(stderr,
                      "Error: CLI support for testctrl %s not implemented\n",
                      azArg[1]);
          break;
      }
    }
  }else
#endif /* !defined(SQLITE_UNTESTABLE) */

  if( c=='t' && n>4 && strncmp(azArg[0], "timeout", n)==0 ){
    open_db(p, 0);
    sqlite3_busy_timeout(p->db, nArg>=2 ? (int)integerValue(azArg[1]) : 0);
  }else

  if( c=='t' && n>=5 && strncmp(azArg[0], "timer", n)==0 ){
    if( nArg==2 ){
      enableTimer = booleanValue(azArg[1]);
      if( enableTimer && !HAS_TIMER ){
        raw_printf(stderr, "Error: timer not available on this system.\n");
        enableTimer = 0;
      }
    }else{
      raw_printf(stderr, "Usage: .timer on|off\n");
      rc = 1;
    }
  }else

  if( c=='t' && strncmp(azArg[0], "trace", n)==0 ){
    open_db(p, 0);
    if( nArg!=2 ){
      raw_printf(stderr, "Usage: .trace FILE|off\n");
      rc = 1;
      goto meta_command_exit;
    }
    output_file_close(p->traceOut);
    p->traceOut = output_file_open(azArg[1]);
#if !defined(SQLITE_OMIT_TRACE) && !defined(SQLITE_OMIT_FLOATING_POINT)
    if( p->traceOut==0 ){
      sqlite3_trace_v2(p->db, 0, 0, 0);
    }else{
      sqlite3_trace_v2(p->db, SQLITE_TRACE_STMT, sql_trace_callback,p->traceOut);
    }
#endif
  }else

#if SQLITE_USER_AUTHENTICATION
  if( c=='u' && strncmp(azArg[0], "user", n)==0 ){
    if( nArg<2 ){
      raw_printf(stderr, "Usage: .user SUBCOMMAND ...\n");
      rc = 1;
      goto meta_command_exit;
    }
    open_db(p, 0);
    if( strcmp(azArg[1],"login")==0 ){
      if( nArg!=4 ){
        raw_printf(stderr, "Usage: .user login USER PASSWORD\n");
        rc = 1;
        goto meta_command_exit;
      }
      rc = sqlite3_user_authenticate(p->db, azArg[2], azArg[3],
                                    (int)strlen(azArg[3]));
      if( rc ){
        utf8_printf(stderr, "Authentication failed for user %s\n", azArg[2]);
        rc = 1;
      }
    }else if( strcmp(azArg[1],"add")==0 ){
      if( nArg!=5 ){
        raw_printf(stderr, "Usage: .user add USER PASSWORD ISADMIN\n");
        rc = 1;
        goto meta_command_exit;
      }
      rc = sqlite3_user_add(p->db, azArg[2],
                            azArg[3], (int)strlen(azArg[3]),
                            booleanValue(azArg[4]));
      if( rc ){
        raw_printf(stderr, "User-Add failed: %d\n", rc);
        rc = 1;
      }
    }else if( strcmp(azArg[1],"edit")==0 ){
      if( nArg!=5 ){
        raw_printf(stderr, "Usage: .user edit USER PASSWORD ISADMIN\n");
        rc = 1;
        goto meta_command_exit;
      }
      rc = sqlite3_user_change(p->db, azArg[2],
                              azArg[3], (int)strlen(azArg[3]),
                              booleanValue(azArg[4]));
      if( rc ){
        raw_printf(stderr, "User-Edit failed: %d\n", rc);
        rc = 1;
      }
    }else if( strcmp(azArg[1],"delete")==0 ){
      if( nArg!=3 ){
        raw_printf(stderr, "Usage: .user delete USER\n");
        rc = 1;
        goto meta_command_exit;
      }
      rc = sqlite3_user_delete(p->db, azArg[2]);
      if( rc ){
        raw_printf(stderr, "User-Delete failed: %d\n", rc);
        rc = 1;
      }
    }else{
      raw_printf(stderr, "Usage: .user login|add|edit|delete ...\n");
      rc = 1;
      goto meta_command_exit;
    }
  }else
#endif /* SQLITE_USER_AUTHENTICATION */

  if( c=='v' && strncmp(azArg[0], "version", n)==0 ){
    utf8_printf(p->out, "SQLite %s %s\n" /*extra-version-info*/,
        sqlite3_libversion(), sqlite3_sourceid());
  }else

  if( c=='v' && strncmp(azArg[0], "vfsinfo", n)==0 ){
    const char *zDbName = nArg==2 ? azArg[1] : "main";
    sqlite3_vfs *pVfs = 0;
    if( p->db ){
      sqlite3_file_control(p->db, zDbName, SQLITE_FCNTL_VFS_POINTER, &pVfs);
      if( pVfs ){
        utf8_printf(p->out, "vfs.zName      = \"%s\"\n", pVfs->zName);
        raw_printf(p->out, "vfs.iVersion   = %d\n", pVfs->iVersion);
        raw_printf(p->out, "vfs.szOsFile   = %d\n", pVfs->szOsFile);
        raw_printf(p->out, "vfs.mxPathname = %d\n", pVfs->mxPathname);
      }
    }
  }else

  if( c=='v' && strncmp(azArg[0], "vfslist", n)==0 ){
    sqlite3_vfs *pVfs;
    sqlite3_vfs *pCurrent = 0;
    if( p->db ){
      sqlite3_file_control(p->db, "main", SQLITE_FCNTL_VFS_POINTER, &pCurrent);
    }
    for(pVfs=sqlite3_vfs_find(0); pVfs; pVfs=pVfs->pNext){
      utf8_printf(p->out, "vfs.zName      = \"%s\"%s\n", pVfs->zName,
           pVfs==pCurrent ? "  <--- CURRENT" : "");
      raw_printf(p->out, "vfs.iVersion   = %d\n", pVfs->iVersion);
      raw_printf(p->out, "vfs.szOsFile   = %d\n", pVfs->szOsFile);
      raw_printf(p->out, "vfs.mxPathname = %d\n", pVfs->mxPathname);
      if( pVfs->pNext ){
        raw_printf(p->out, "-----------------------------------\n");
      }
    }
  }else

  if( c=='v' && strncmp(azArg[0], "vfsname", n)==0 ){
    const char *zDbName = nArg==2 ? azArg[1] : "main";
    char *zVfsName = 0;
    if( p->db ){
      sqlite3_file_control(p->db, zDbName, SQLITE_FCNTL_VFSNAME, &zVfsName);
      if( zVfsName ){
        utf8_printf(p->out, "%s\n", zVfsName);
        sqlite3_free(zVfsName);
      }
    }
  }else

#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE)
  if( c=='w' && strncmp(azArg[0], "wheretrace", n)==0 ){
    sqlite3WhereTrace = nArg>=2 ? booleanValue(azArg[1]) : 0xff;
  }else
#endif

  if( c=='w' && strncmp(azArg[0], "width", n)==0 ){
    int j;
    assert( nArg<=ArraySize(azArg) );
    for(j=1; j<nArg && j<ArraySize(p->colWidth); j++){
      p->colWidth[j-1] = (int)integerValue(azArg[j]);
    }
  }else

  {
    utf8_printf(stderr, "Error: unknown command or invalid arguments: "
      " \"%s\". Enter \".help\" for help\n", azArg[0]);
    rc = 1;
  }

meta_command_exit:
  if( p->outCount ){
    p->outCount--;
    if( p->outCount==0 ) output_reset(p);
  }
  return rc;
}

/*
** Return TRUE if a semicolon occurs anywhere in the first N characters
** of string z[].
*/
static int line_contains_semicolon(const char *z, int N){
  int i;
  for(i=0; i<N; i++){  if( z[i]==';' ) return 1; }
  return 0;
}

/*
** Test to see if a line consists entirely of whitespace.
*/
static int _all_whitespace(const char *z){
  for(; *z; z++){
    if( IsSpace(z[0]) ) continue;
    if( *z=='/' && z[1]=='*' ){
      z += 2;
      while( *z && (*z!='*' || z[1]!='/') ){ z++; }
      if( *z==0 ) return 0;
      z++;
      continue;
    }
    if( *z=='-' && z[1]=='-' ){
      z += 2;
      while( *z && *z!='\n' ){ z++; }
      if( *z==0 ) return 1;
      continue;
    }
    return 0;
  }
  return 1;
}

/*
** Return TRUE if the line typed in is an SQL command terminator other
** than a semi-colon.  The SQL Server style "go" command is understood
** as is the Oracle "/".
*/
static int line_is_command_terminator(const char *zLine){
  while( IsSpace(zLine[0]) ){ zLine++; };
  if( zLine[0]=='/' && _all_whitespace(&zLine[1]) ){
    return 1;  /* Oracle */
  }
  if( ToLower(zLine[0])=='g' && ToLower(zLine[1])=='o'
         && _all_whitespace(&zLine[2]) ){
    return 1;  /* SQL Server */
  }
  return 0;
}

/*
** Return true if zSql is a complete SQL statement.  Return false if it
** ends in the middle of a string literal or C-style comment.
*/
static int line_is_complete(char *zSql, int nSql){
  int rc;
  if( zSql==0 ) return 1;
  zSql[nSql] = ';';
  zSql[nSql+1] = 0;
  rc = sqlite3_complete(zSql);
  zSql[nSql] = 0;
  return rc;
}

/*
** Run a single line of SQL
*/
static int runOneSqlLine(ShellState *p, char *zSql, FILE *in, int startline){
  int rc;
  char *zErrMsg = 0;

  open_db(p, 0);
  if( ShellHasFlag(p,SHFLG_Backslash) ) resolve_backslashes(zSql);
  BEGIN_TIMER;
  rc = shell_exec(p->db, zSql, shell_callback, p, &zErrMsg);
  END_TIMER;
  if( rc || zErrMsg ){
    char zPrefix[100];
    if( in!=0 || !stdin_is_interactive ){
      sqlite3_snprintf(sizeof(zPrefix), zPrefix,
                       "Error: near line %d:", startline);
    }else{
      sqlite3_snprintf(sizeof(zPrefix), zPrefix, "Error:");
    }
    if( zErrMsg!=0 ){
      utf8_printf(stderr, "%s %s\n", zPrefix, zErrMsg);
      sqlite3_free(zErrMsg);
      zErrMsg = 0;
    }else{
      utf8_printf(stderr, "%s %s\n", zPrefix, sqlite3_errmsg(p->db));
    }
    return 1;
  }else if( ShellHasFlag(p, SHFLG_CountChanges) ){
    raw_printf(p->out, "changes: %3d   total_changes: %d\n",
            sqlite3_changes(p->db), sqlite3_total_changes(p->db));
  }
  return 0;
}


/*
** Read input from *in and process it.  If *in==0 then input
** is interactive - the user is typing it it.  Otherwise, input
** is coming from a file or device.  A prompt is issued and history
** is saved only if input is interactive.  An interrupt signal will
** cause this routine to exit immediately, unless input is interactive.
**
** Return the number of errors.
*/
static int process_input(ShellState *p, FILE *in){
  char *zLine = 0;          /* A single input line */
  char *zSql = 0;           /* Accumulated SQL text */
  int nLine;                /* Length of current line */
  int nSql = 0;             /* Bytes of zSql[] used */
  int nAlloc = 0;           /* Allocated zSql[] space */
  int nSqlPrior = 0;        /* Bytes of zSql[] used by prior line */
  int rc;                   /* Error code */
  int errCnt = 0;           /* Number of errors seen */
  int lineno = 0;           /* Current line number */
  int startline = 0;        /* Line number for start of current input */

  while( errCnt==0 || !bail_on_error || (in==0 && stdin_is_interactive) ){
    fflush(p->out);
    zLine = one_input_line(in, zLine, nSql>0);
    if( zLine==0 ){
      /* End of input */
      if( in==0 && stdin_is_interactive ) printf("\n");
      break;
    }
    if( seenInterrupt ){
      if( in!=0 ) break;
      seenInterrupt = 0;
    }
    lineno++;
    if( nSql==0 && _all_whitespace(zLine) ){
      if( ShellHasFlag(p, SHFLG_Echo) ) printf("%s\n", zLine);
      continue;
    }
    if( zLine && zLine[0]=='.' && nSql==0 ){
      if( ShellHasFlag(p, SHFLG_Echo) ) printf("%s\n", zLine);
      rc = do_meta_command(zLine, p);
      if( rc==2 ){ /* exit requested */
        break;
      }else if( rc ){
        errCnt++;
      }
      continue;
    }
    if( line_is_command_terminator(zLine) && line_is_complete(zSql, nSql) ){
      memcpy(zLine,";",2);
    }
    nLine = strlen30(zLine);
    if( nSql+nLine+2>=nAlloc ){
      nAlloc = nSql+nLine+100;
      zSql = realloc(zSql, nAlloc);
      if( zSql==0 ){
        raw_printf(stderr, "Error: out of memory\n");
        exit(1);
      }
    }
    nSqlPrior = nSql;
    if( nSql==0 ){
      int i;
      for(i=0; zLine[i] && IsSpace(zLine[i]); i++){}
      assert( nAlloc>0 && zSql!=0 );
      memcpy(zSql, zLine+i, nLine+1-i);
      startline = lineno;
      nSql = nLine-i;
    }else{
      zSql[nSql++] = '\n';
      memcpy(zSql+nSql, zLine, nLine+1);
      nSql += nLine;
    }
    if( nSql && line_contains_semicolon(&zSql[nSqlPrior], nSql-nSqlPrior)
                && sqlite3_complete(zSql) ){
      errCnt += runOneSqlLine(p, zSql, in, startline);
      nSql = 0;
      if( p->outCount ){
        output_reset(p);
        p->outCount = 0;
      }
    }else if( nSql && _all_whitespace(zSql) ){
      if( ShellHasFlag(p, SHFLG_Echo) ) printf("%s\n", zSql);
      nSql = 0;
    }
  }
  if( nSql && !_all_whitespace(zSql) ){
    runOneSqlLine(p, zSql, in, startline);
  }
  free(zSql);
  free(zLine);
  return errCnt>0;
}

/*
** Return a pathname which is the user's home directory.  A
** 0 return indicates an error of some kind.
*/
static char *find_home_dir(int clearFlag){
  static char *home_dir = NULL;
  if( clearFlag ){
    free(home_dir);
    home_dir = 0;
    return 0;
  }
  if( home_dir ) return home_dir;

#if !defined(_WIN32) && !defined(WIN32) && !defined(_WIN32_WCE) \
     && !defined(__RTP__) && !defined(_WRS_KERNEL)
  {
    struct passwd *pwent;
    uid_t uid = getuid();
    if( (pwent=getpwuid(uid)) != NULL) {
      home_dir = pwent->pw_dir;
    }
  }
#endif

#if defined(_WIN32_WCE)
  /* Windows CE (arm-wince-mingw32ce-gcc) does not provide getenv()
   */
  home_dir = "/";
#else

#if defined(_WIN32) || defined(WIN32)
  if (!home_dir) {
    home_dir = getenv("USERPROFILE");
  }
#endif

  if (!home_dir) {
    home_dir = getenv("HOME");
  }

#if defined(_WIN32) || defined(WIN32)
  if (!home_dir) {
    char *zDrive, *zPath;
    int n;
    zDrive = getenv("HOMEDRIVE");
    zPath = getenv("HOMEPATH");
    if( zDrive && zPath ){
      n = strlen30(zDrive) + strlen30(zPath) + 1;
      home_dir = malloc( n );
      if( home_dir==0 ) return 0;
      sqlite3_snprintf(n, home_dir, "%s%s", zDrive, zPath);
      return home_dir;
    }
    home_dir = "c:\\";
  }
#endif

#endif /* !_WIN32_WCE */

  if( home_dir ){
    int n = strlen30(home_dir) + 1;
    char *z = malloc( n );
    if( z ) memcpy(z, home_dir, n);
    home_dir = z;
  }

  return home_dir;
}

/*
** Read input from the file given by sqliterc_override.  Or if that
** parameter is NULL, take input from ~/.sqliterc
**
** Returns the number of errors.
*/
static void process_sqliterc(
  ShellState *p,                  /* Configuration data */
  const char *sqliterc_override   /* Name of config file. NULL to use default */
){
  char *home_dir = NULL;
  const char *sqliterc = sqliterc_override;
  char *zBuf = 0;
  FILE *in = NULL;

  if (sqliterc == NULL) {
    home_dir = find_home_dir(0);
    if( home_dir==0 ){
      raw_printf(stderr, "-- warning: cannot find home directory;"
                      " cannot read ~/.sqliterc\n");
      return;
    }
    sqlite3_initialize();
    zBuf = sqlite3_mprintf("%s/.sqliterc",home_dir);
    sqliterc = zBuf;
  }
  in = fopen(sqliterc,"rb");
  if( in ){
    if( stdin_is_interactive ){
      utf8_printf(stderr,"-- Loading resources from %s\n",sqliterc);
    }
    process_input(p,in);
    fclose(in);
  }
  sqlite3_free(zBuf);
}

/*
** Show available command line options
*/
static const char zOptions[] =
  "   -ascii               set output mode to 'ascii'\n"
  "   -bail                stop after hitting an error\n"
  "   -batch               force batch I/O\n"
  "   -column              set output mode to 'column'\n"
  "   -cmd COMMAND         run \"COMMAND\" before reading stdin\n"
  "   -csv                 set output mode to 'csv'\n"
  "   -echo                print commands before execution\n"
  "   -init FILENAME       read/process named file\n"
  "   -[no]header          turn headers on or off\n"
#if defined(SQLITE_ENABLE_MEMSYS3) || defined(SQLITE_ENABLE_MEMSYS5)
  "   -heap SIZE           Size of heap for memsys3 or memsys5\n"
#endif
  "   -help                show this message\n"
  "   -html                set output mode to HTML\n"
  "   -interactive         force interactive I/O\n"
  "   -line                set output mode to 'line'\n"
  "   -list                set output mode to 'list'\n"
  "   -lookaside SIZE N    use N entries of SZ bytes for lookaside memory\n"
  "   -mmap N              default mmap size set to N\n"
#ifdef SQLITE_ENABLE_MULTIPLEX
  "   -multiplex           enable the multiplexor VFS\n"
#endif
  "   -newline SEP         set output row separator. Default: '\\n'\n"
  "   -nullvalue TEXT      set text string for NULL values. Default ''\n"
  "   -pagecache SIZE N    use N slots of SZ bytes each for page cache memory\n"
  "   -quote               set output mode to 'quote'\n"
  "   -scratch SIZE N      use N slots of SZ bytes each for scratch memory\n"
  "   -separator SEP       set output column separator. Default: '|'\n"
  "   -stats               print memory stats before each finalize\n"
  "   -version             show SQLite version\n"
  "   -vfs NAME            use NAME as the default VFS\n"
#ifdef SQLITE_ENABLE_VFSTRACE
  "   -vfstrace            enable tracing of all VFS calls\n"
#endif
;
static void usage(int showDetail){
  utf8_printf(stderr,
      "Usage: %s [OPTIONS] FILENAME [SQL]\n"
      "FILENAME is the name of an SQLite database. A new database is created\n"
      "if the file does not previously exist.\n", Argv0);
  if( showDetail ){
    utf8_printf(stderr, "OPTIONS include:\n%s", zOptions);
  }else{
    raw_printf(stderr, "Use the -help option for additional information\n");
  }
  exit(1);
}

/*
** Initialize the state information in data
*/
static void main_init(ShellState *data) {
  memset(data, 0, sizeof(*data));
  data->normalMode = data->cMode = data->mode = MODE_List;
  data->autoExplain = 1;
  memcpy(data->colSeparator,SEP_Column, 2);
  memcpy(data->rowSeparator,SEP_Row, 2);
  data->showHeader = 0;
  data->shellFlgs = SHFLG_Lookaside;
  sqlite3_config(SQLITE_CONFIG_URI, 1);
  sqlite3_config(SQLITE_CONFIG_LOG, shellLog, data);
  sqlite3_config(SQLITE_CONFIG_MULTITHREAD);
  sqlite3_snprintf(sizeof(mainPrompt), mainPrompt,"sqlite> ");
  sqlite3_snprintf(sizeof(continuePrompt), continuePrompt,"   ...> ");
}

/*
** Output text to the console in a font that attracts extra attention.
*/
#ifdef _WIN32
static void printBold(const char *zText){
  HANDLE out = GetStdHandle(STD_OUTPUT_HANDLE);
  CONSOLE_SCREEN_BUFFER_INFO defaultScreenInfo;
  GetConsoleScreenBufferInfo(out, &defaultScreenInfo);
  SetConsoleTextAttribute(out,
         FOREGROUND_RED|FOREGROUND_INTENSITY
  );
  printf("%s", zText);
  SetConsoleTextAttribute(out, defaultScreenInfo.wAttributes);
}
#else
static void printBold(const char *zText){
  printf("\033[1m%s\033[0m", zText);
}
#endif

/*
** Get the argument to an --option.  Throw an error and die if no argument
** is available.
*/
static char *cmdline_option_value(int argc, char **argv, int i){
  if( i==argc ){
    utf8_printf(stderr, "%s: Error: missing argument to %s\n",
            argv[0], argv[argc-1]);
    exit(1);
  }
  return argv[i];
}

#ifndef SQLITE_SHELL_IS_UTF8
#  if (defined(_WIN32) || defined(WIN32)) && defined(_MSC_VER)
#    define SQLITE_SHELL_IS_UTF8          (0)
#  else
#    define SQLITE_SHELL_IS_UTF8          (1)
#  endif
#endif

#if SQLITE_SHELL_IS_UTF8
int SQLITE_CDECL main(int argc, char **argv){
#else
int SQLITE_CDECL wmain(int argc, wchar_t **wargv){
  char **argv;
#endif
  char *zErrMsg = 0;
  ShellState data;
  const char *zInitFile = 0;
  int i;
  int rc = 0;
  int warnInmemoryDb = 0;
  int readStdin = 1;
  int nCmd = 0;
  char **azCmd = 0;

  setBinaryMode(stdin, 0);
  setvbuf(stderr, 0, _IONBF, 0); /* Make sure stderr is unbuffered */
  stdin_is_interactive = isatty(0);
  stdout_is_console = isatty(1);

#if USE_SYSTEM_SQLITE+0!=1
  if( strcmp(sqlite3_sourceid(),SQLITE_SOURCE_ID)!=0 ){
    utf8_printf(stderr, "SQLite header and source version mismatch\n%s\n%s\n",
            sqlite3_sourceid(), SQLITE_SOURCE_ID);
    exit(1);
  }
#endif
  main_init(&data);
#if !SQLITE_SHELL_IS_UTF8
  sqlite3_initialize();
  argv = sqlite3_malloc64(sizeof(argv[0])*argc);
  if( argv==0 ){
    raw_printf(stderr, "out of memory\n");
    exit(1);
  }
  for(i=0; i<argc; i++){
    argv[i] = sqlite3_win32_unicode_to_utf8(wargv[i]);
    if( argv[i]==0 ){
      raw_printf(stderr, "out of memory\n");
      exit(1);
    }
  }
#endif
  assert( argc>=1 && argv && argv[0] );
  Argv0 = argv[0];

  /* Make sure we have a valid signal handler early, before anything
  ** else is done.
  */
#ifdef SIGINT
  signal(SIGINT, interrupt_handler);
#endif

#ifdef SQLITE_SHELL_DBNAME_PROC
  {
    /* If the SQLITE_SHELL_DBNAME_PROC macro is defined, then it is the name
    ** of a C-function that will provide the name of the database file.  Use
    ** this compile-time option to embed this shell program in larger
    ** applications. */
    extern void SQLITE_SHELL_DBNAME_PROC(const char**);
    SQLITE_SHELL_DBNAME_PROC(&data.zDbFilename);
    warnInmemoryDb = 0;
  }
#endif

  /* Do an initial pass through the command-line argument to locate
  ** the name of the database file, the name of the initialization file,
  ** the size of the alternative malloc heap,
  ** and the first command to execute.
  */
  for(i=1; i<argc; i++){
    char *z;
    z = argv[i];
    if( z[0]!='-' ){
      if( data.zDbFilename==0 ){
        data.zDbFilename = z;
      }else{
        /* Excesss arguments are interpreted as SQL (or dot-commands) and
        ** mean that nothing is read from stdin */
        readStdin = 0;
        nCmd++;
        azCmd = realloc(azCmd, sizeof(azCmd[0])*nCmd);
        if( azCmd==0 ){
          raw_printf(stderr, "out of memory\n");
          exit(1);
        }
        azCmd[nCmd-1] = z;
      }
    }
    if( z[1]=='-' ) z++;
    if( strcmp(z,"-separator")==0
     || strcmp(z,"-nullvalue")==0
     || strcmp(z,"-newline")==0
     || strcmp(z,"-cmd")==0
    ){
      (void)cmdline_option_value(argc, argv, ++i);
    }else if( strcmp(z,"-init")==0 ){
      zInitFile = cmdline_option_value(argc, argv, ++i);
    }else if( strcmp(z,"-batch")==0 ){
      /* Need to check for batch mode here to so we can avoid printing
      ** informational messages (like from process_sqliterc) before
      ** we do the actual processing of arguments later in a second pass.
      */
      stdin_is_interactive = 0;
    }else if( strcmp(z,"-heap")==0 ){
#if defined(SQLITE_ENABLE_MEMSYS3) || defined(SQLITE_ENABLE_MEMSYS5)
      const char *zSize;
      sqlite3_int64 szHeap;

      zSize = cmdline_option_value(argc, argv, ++i);
      szHeap = integerValue(zSize);
      if( szHeap>0x7fff0000 ) szHeap = 0x7fff0000;
      sqlite3_config(SQLITE_CONFIG_HEAP, malloc((int)szHeap), (int)szHeap, 64);
#else
      (void)cmdline_option_value(argc, argv, ++i);
#endif
    }else if( strcmp(z,"-scratch")==0 ){
      int n, sz;
      sz = (int)integerValue(cmdline_option_value(argc,argv,++i));
      if( sz>400000 ) sz = 400000;
      if( sz<2500 ) sz = 2500;
      n = (int)integerValue(cmdline_option_value(argc,argv,++i));
      if( n>10 ) n = 10;
      if( n<1 ) n = 1;
      sqlite3_config(SQLITE_CONFIG_SCRATCH, malloc(n*sz+1), sz, n);
      data.shellFlgs |= SHFLG_Scratch;
    }else if( strcmp(z,"-pagecache")==0 ){
      int n, sz;
      sz = (int)integerValue(cmdline_option_value(argc,argv,++i));
      if( sz>70000 ) sz = 70000;
      if( sz<0 ) sz = 0;
      n = (int)integerValue(cmdline_option_value(argc,argv,++i));
      sqlite3_config(SQLITE_CONFIG_PAGECACHE,
                    (n>0 && sz>0) ? malloc(n*sz) : 0, sz, n);
      data.shellFlgs |= SHFLG_Pagecache;
    }else if( strcmp(z,"-lookaside")==0 ){
      int n, sz;
      sz = (int)integerValue(cmdline_option_value(argc,argv,++i));
      if( sz<0 ) sz = 0;
      n = (int)integerValue(cmdline_option_value(argc,argv,++i));
      if( n<0 ) n = 0;
      sqlite3_config(SQLITE_CONFIG_LOOKASIDE, sz, n);
      if( sz*n==0 ) data.shellFlgs &= ~SHFLG_Lookaside;
#ifdef SQLITE_ENABLE_VFSTRACE
    }else if( strcmp(z,"-vfstrace")==0 ){
      extern int vfstrace_register(
         const char *zTraceName,
         const char *zOldVfsName,
         int (*xOut)(const char*,void*),
         void *pOutArg,
         int makeDefault
      );
      vfstrace_register("trace",0,(int(*)(const char*,void*))fputs,stderr,1);
#endif
#ifdef SQLITE_ENABLE_MULTIPLEX
    }else if( strcmp(z,"-multiplex")==0 ){
      extern int sqlite3_multiple_initialize(const char*,int);
      sqlite3_multiplex_initialize(0, 1);
#endif
    }else if( strcmp(z,"-mmap")==0 ){
      sqlite3_int64 sz = integerValue(cmdline_option_value(argc,argv,++i));
      sqlite3_config(SQLITE_CONFIG_MMAP_SIZE, sz, sz);
    }else if( strcmp(z,"-vfs")==0 ){
      sqlite3_vfs *pVfs = sqlite3_vfs_find(cmdline_option_value(argc,argv,++i));
      if( pVfs ){
        sqlite3_vfs_register(pVfs, 1);
      }else{
        utf8_printf(stderr, "no such VFS: \"%s\"\n", argv[i]);
        exit(1);
      }
    }
  }
  if( data.zDbFilename==0 ){
#ifndef SQLITE_OMIT_MEMORYDB
    data.zDbFilename = ":memory:";
    warnInmemoryDb = argc==1;
#else
    utf8_printf(stderr,"%s: Error: no database filename specified\n", Argv0);
    return 1;
#endif
  }
  data.out = stdout;

  /* Go ahead and open the database file if it already exists.  If the
  ** file does not exist, delay opening it.  This prevents empty database
  ** files from being created if a user mistypes the database name argument
  ** to the sqlite command-line tool.
  */
  if( access(data.zDbFilename, 0)==0 ){
    open_db(&data, 0);
  }

  /* Process the initialization file if there is one.  If no -init option
  ** is given on the command line, look for a file named ~/.sqliterc and
  ** try to process it.
  */
  process_sqliterc(&data,zInitFile);

  /* Make a second pass through the command-line argument and set
  ** options.  This second pass is delayed until after the initialization
  ** file is processed so that the command-line arguments will override
  ** settings in the initialization file.
  */
  for(i=1; i<argc; i++){
    char *z = argv[i];
    if( z[0]!='-' ) continue;
    if( z[1]=='-' ){ z++; }
    if( strcmp(z,"-init")==0 ){
      i++;
    }else if( strcmp(z,"-html")==0 ){
      data.mode = MODE_Html;
    }else if( strcmp(z,"-list")==0 ){
      data.mode = MODE_List;
    }else if( strcmp(z,"-quote")==0 ){
      data.mode = MODE_Quote;
    }else if( strcmp(z,"-line")==0 ){
      data.mode = MODE_Line;
    }else if( strcmp(z,"-column")==0 ){
      data.mode = MODE_Column;
    }else if( strcmp(z,"-csv")==0 ){
      data.mode = MODE_Csv;
      memcpy(data.colSeparator,",",2);
    }else if( strcmp(z,"-ascii")==0 ){
      data.mode = MODE_Ascii;
      sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator,
                       SEP_Unit);
      sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator,
                       SEP_Record);
    }else if( strcmp(z,"-separator")==0 ){
      sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator,
                       "%s",cmdline_option_value(argc,argv,++i));
    }else if( strcmp(z,"-newline")==0 ){
      sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator,
                       "%s",cmdline_option_value(argc,argv,++i));
    }else if( strcmp(z,"-nullvalue")==0 ){
      sqlite3_snprintf(sizeof(data.nullValue), data.nullValue,
                       "%s",cmdline_option_value(argc,argv,++i));
    }else if( strcmp(z,"-header")==0 ){
      data.showHeader = 1;
    }else if( strcmp(z,"-noheader")==0 ){
      data.showHeader = 0;
    }else if( strcmp(z,"-echo")==0 ){
      ShellSetFlag(&data, SHFLG_Echo);
    }else if( strcmp(z,"-eqp")==0 ){
      data.autoEQP = 1;
    }else if( strcmp(z,"-eqpfull")==0 ){
      data.autoEQP = 2;
    }else if( strcmp(z,"-stats")==0 ){
      data.statsOn = 1;
    }else if( strcmp(z,"-scanstats")==0 ){
      data.scanstatsOn = 1;
    }else if( strcmp(z,"-backslash")==0 ){
      /* Undocumented command-line option: -backslash
      ** Causes C-style backslash escapes to be evaluated in SQL statements
      ** prior to sending the SQL into SQLite.  Useful for injecting
      ** crazy bytes in the middle of SQL statements for testing and debugging.
      */
      ShellSetFlag(&data, SHFLG_Backslash);
    }else if( strcmp(z,"-bail")==0 ){
      bail_on_error = 1;
    }else if( strcmp(z,"-version")==0 ){
      printf("%s %s\n", sqlite3_libversion(), sqlite3_sourceid());
      return 0;
    }else if( strcmp(z,"-interactive")==0 ){
      stdin_is_interactive = 1;
    }else if( strcmp(z,"-batch")==0 ){
      stdin_is_interactive = 0;
    }else if( strcmp(z,"-heap")==0 ){
      i++;
    }else if( strcmp(z,"-scratch")==0 ){
      i+=2;
    }else if( strcmp(z,"-pagecache")==0 ){
      i+=2;
    }else if( strcmp(z,"-lookaside")==0 ){
      i+=2;
    }else if( strcmp(z,"-mmap")==0 ){
      i++;
    }else if( strcmp(z,"-vfs")==0 ){
      i++;
#ifdef SQLITE_ENABLE_VFSTRACE
    }else if( strcmp(z,"-vfstrace")==0 ){
      i++;
#endif
#ifdef SQLITE_ENABLE_MULTIPLEX
    }else if( strcmp(z,"-multiplex")==0 ){
      i++;
#endif
    }else if( strcmp(z,"-help")==0 ){
      usage(1);
    }else if( strcmp(z,"-cmd")==0 ){
      /* Run commands that follow -cmd first and separately from commands
      ** that simply appear on the command-line.  This seems goofy.  It would
      ** be better if all commands ran in the order that they appear.  But
      ** we retain the goofy behavior for historical compatibility. */
      if( i==argc-1 ) break;
      z = cmdline_option_value(argc,argv,++i);
      if( z[0]=='.' ){
        rc = do_meta_command(z, &data);
        if( rc && bail_on_error ) return rc==2 ? 0 : rc;
      }else{
        open_db(&data, 0);
        rc = shell_exec(data.db, z, shell_callback, &data, &zErrMsg);
        if( zErrMsg!=0 ){
          utf8_printf(stderr,"Error: %s\n", zErrMsg);
          if( bail_on_error ) return rc!=0 ? rc : 1;
        }else if( rc!=0 ){
          utf8_printf(stderr,"Error: unable to process SQL \"%s\"\n", z);
          if( bail_on_error ) return rc;
        }
      }
    }else{
      utf8_printf(stderr,"%s: Error: unknown option: %s\n", Argv0, z);
      raw_printf(stderr,"Use -help for a list of options.\n");
      return 1;
    }
    data.cMode = data.mode;
  }

  if( !readStdin ){
    /* Run all arguments that do not begin with '-' as if they were separate
    ** command-line inputs, except for the argToSkip argument which contains
    ** the database filename.
    */
    for(i=0; i<nCmd; i++){
      if( azCmd[i][0]=='.' ){
        rc = do_meta_command(azCmd[i], &data);
        if( rc ) return rc==2 ? 0 : rc;
      }else{
        open_db(&data, 0);
        rc = shell_exec(data.db, azCmd[i], shell_callback, &data, &zErrMsg);
        if( zErrMsg!=0 ){
          utf8_printf(stderr,"Error: %s\n", zErrMsg);
          return rc!=0 ? rc : 1;
        }else if( rc!=0 ){
          utf8_printf(stderr,"Error: unable to process SQL: %s\n", azCmd[i]);
          return rc;
        }
      }
    }
    free(azCmd);
  }else{
    /* Run commands received from standard input
    */
    if( stdin_is_interactive ){
      char *zHome;
      char *zHistory = 0;
      int nHistory;
      printf(
        "SQLite version %s %.19s\n" /*extra-version-info*/
        "Enter \".help\" for usage hints.\n",
        sqlite3_libversion(), sqlite3_sourceid()
      );
      if( warnInmemoryDb ){
        printf("Connected to a ");
        printBold("transient in-memory database");
        printf(".\nUse \".open FILENAME\" to reopen on a "
               "persistent database.\n");
      }
      zHome = find_home_dir(0);
      if( zHome ){
        nHistory = strlen30(zHome) + 20;
        if( (zHistory = malloc(nHistory))!=0 ){
          sqlite3_snprintf(nHistory, zHistory,"%s/.sqlite_history", zHome);
        }
      }
      if( zHistory ){ shell_read_history(zHistory); }
#if HAVE_READLINE || HAVE_EDITLINE
      rl_attempted_completion_function = readline_completion;
#elif HAVE_LINENOISE
      linenoiseSetCompletionCallback(linenoise_completion);
#endif
      rc = process_input(&data, 0);
      if( zHistory ){
        shell_stifle_history(2000);
        shell_write_history(zHistory);
        free(zHistory);
      }
    }else{
      rc = process_input(&data, stdin);
    }
  }
  set_table_name(&data, 0);
  if( data.db ){
    session_close_all(&data);
    sqlite3_close(data.db);
  }
  sqlite3_free(data.zFreeOnClose);
  find_home_dir(1);
#if !SQLITE_SHELL_IS_UTF8
  for(i=0; i<argc; i++) sqlite3_free(argv[i]);
  sqlite3_free(argv);
#endif
  return rc;
}
Changes to src/sqlite.h.in.
231
232
233
234
235
236
237
238

239
240
241
242
243
244
245
231
232
233
234
235
236
237

238
239
240
241
242
243
244
245







-
+







**
** 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
** pointer as an object.  The [sqlite3_open()], [sqlite3_open16()], and
** [sqlite3_open_v2()] interfaces are its constructors, and [sqlite3_close()]
** and [sqlite3_close_v2()] are its destructors.  There are many other
** interfaces (such as
** [sqlite3_prepare_v3()], [sqlite3_create_function()], and
** [sqlite3_prepare_v2()], [sqlite3_create_function()], and
** [sqlite3_busy_timeout()] to name but three) that are methods on an
** sqlite3 object.
*/
typedef struct sqlite3 sqlite3;

/*
** CAPI3REF: 64-Bit Integer Types
335
336
337
338
339
340
341
342

343
344
345
346
347
348
349
335
336
337
338
339
340
341

342
343
344
345
346
347
348
349







-
+







typedef int (*sqlite3_callback)(void*,int,char**, char**);

/*
** CAPI3REF: One-Step Query Execution Interface
** METHOD: sqlite3
**
** The sqlite3_exec() interface is a convenience wrapper around
** [sqlite3_prepare_v3()], [sqlite3_step()], and [sqlite3_finalize()],
** [sqlite3_prepare_v2()], [sqlite3_step()], and [sqlite3_finalize()],
** that allows an application to run multiple statements of SQL
** without having to use a lot of C code. 
**
** ^The sqlite3_exec() interface runs zero or more UTF-8 encoded,
** semicolon-separate SQL statements passed into its 2nd argument,
** in the context of the [database connection] passed in as its 1st
** argument.  ^If the callback function of the 3rd argument to
413
414
415
416
417
418
419
420

421
422
423
424
425
426
427
428
429
430
431
432
433
434
435

436
437
438
439
440
441
442
443

444
445
446
447
448
449
450
413
414
415
416
417
418
419

420
421
422
423
424
425
426
427
428
429
430
431
432
433
434

435
436
437
438
439
440
441
442

443
444
445
446
447
448
449
450







-
+














-
+







-
+







**
** New error codes may be added in future versions of SQLite.
**
** See also: [extended result code definitions]
*/
#define SQLITE_OK           0   /* Successful result */
/* beginning-of-error-codes */
#define SQLITE_ERROR        1   /* SQL error or missing database */
#define SQLITE_ERROR        1   /* Generic error */
#define SQLITE_INTERNAL     2   /* Internal logic error in SQLite */
#define SQLITE_PERM         3   /* Access permission denied */
#define SQLITE_ABORT        4   /* Callback routine requested an abort */
#define SQLITE_BUSY         5   /* The database file is locked */
#define SQLITE_LOCKED       6   /* A table in the database is locked */
#define SQLITE_NOMEM        7   /* A malloc() failed */
#define SQLITE_READONLY     8   /* Attempt to write a readonly database */
#define SQLITE_INTERRUPT    9   /* Operation terminated by sqlite3_interrupt()*/
#define SQLITE_IOERR       10   /* Some kind of disk I/O error occurred */
#define SQLITE_CORRUPT     11   /* The database disk image is malformed */
#define SQLITE_NOTFOUND    12   /* Unknown opcode in sqlite3_file_control() */
#define SQLITE_FULL        13   /* Insertion failed because database is full */
#define SQLITE_CANTOPEN    14   /* Unable to open the database file */
#define SQLITE_PROTOCOL    15   /* Database lock protocol error */
#define SQLITE_EMPTY       16   /* Database is empty */
#define SQLITE_EMPTY       16   /* Not used */
#define SQLITE_SCHEMA      17   /* The database schema changed */
#define SQLITE_TOOBIG      18   /* String or BLOB exceeds size limit */
#define SQLITE_CONSTRAINT  19   /* Abort due to constraint violation */
#define SQLITE_MISMATCH    20   /* Data type mismatch */
#define SQLITE_MISUSE      21   /* Library used incorrectly */
#define SQLITE_NOLFS       22   /* Uses OS features not supported on host */
#define SQLITE_AUTH        23   /* Authorization denied */
#define SQLITE_FORMAT      24   /* Auxiliary database format error */
#define SQLITE_FORMAT      24   /* Not used */
#define SQLITE_RANGE       25   /* 2nd parameter to sqlite3_bind out of range */
#define SQLITE_NOTADB      26   /* File opened that is not a database file */
#define SQLITE_NOTICE      27   /* Notifications from sqlite3_log() */
#define SQLITE_WARNING     28   /* Warnings from sqlite3_log() */
#define SQLITE_ROW         100  /* sqlite3_step() has another row ready */
#define SQLITE_DONE        101  /* sqlite3_step() has finished executing */
/* end-of-error-codes */
2006
2007
2008
2009
2010
2011
2012
2013

2014
2015
2016

2017
2018
2019
2020
2021
2022
2023
2006
2007
2008
2009
2010
2011
2012

2013
2014
2015

2016
2017
2018
2019
2020
2021
2022
2023







-
+


-
+







** is an integer - non-zero to disable checkpoints-on-close, or zero (the
** default) to enable them. The second parameter is a pointer to an integer
** into which is written 0 or 1 to indicate whether checkpoints-on-close
** have been disabled - 0 if they are not disabled, 1 if they are.
** </dd>
**
** <dt>SQLITE_DBCONFIG_ENABLE_QPSG</dt>
** <dd>The SQLITE_DBCONFIG_ENABLE_QPSG option activates or deactivates
** <dd>^(The SQLITE_DBCONFIG_ENABLE_QPSG option activates or deactivates
** the [query planner stability guarantee] (QPSG).  When the QPSG is active,
** a single SQL query statement will always use the same algorithm regardless
** of values of [bound parameters].  The QPSG disables some query optimizations
** of values of [bound parameters].)^ The QPSG disables some query optimizations
** that look at the values of bound parameters, which can make some queries
** slower.  But the QPSG has the advantage of more predictable behavior.  With
** the QPSG active, SQLite will always use the same query plan in the field as
** was used during testing in the lab.
** </dd>
**
** </dl>
2699
2700
2701
2702
2703
2704
2705
2706

2707
2708
2709
2710
2711

2712
2713
2714
2715
2716
2717
2718
2699
2700
2701
2702
2703
2704
2705

2706
2707
2708
2709
2710

2711
2712
2713
2714
2715
2716
2717
2718







-
+




-
+







** to perform various actions, the authorizer callback is invoked to
** see if those actions are allowed.  ^The authorizer callback should
** return [SQLITE_OK] to allow the action, [SQLITE_IGNORE] to disallow the
** specific action but allow the SQL statement to continue to be
** compiled, or [SQLITE_DENY] to cause the entire SQL statement to be
** rejected with an error.  ^If the authorizer callback returns
** any value other than [SQLITE_IGNORE], [SQLITE_OK], or [SQLITE_DENY]
** then the [sqlite3_prepare_v3()] or equivalent call that triggered
** then the [sqlite3_prepare_v2()] or equivalent call that triggered
** the authorizer will fail with an error message.
**
** When the callback returns [SQLITE_OK], that means the operation
** requested is ok.  ^When the callback returns [SQLITE_DENY], the
** [sqlite3_prepare_v3()] or equivalent call that triggered the
** [sqlite3_prepare_v2()] or equivalent call that triggered the
** authorizer will fail with an error message explaining that
** access is denied. 
**
** ^The first parameter to the authorizer callback is a copy of the third
** parameter to the sqlite3_set_authorizer() interface. ^The second parameter
** to the callback is an integer [SQLITE_COPY | action code] that specifies
** the particular action to be authorized. ^The third through sixth parameters
2755
2756
2757
2758
2759
2760
2761
2762

2763
2764
2765

2766
2767
2768
2769
2770
2771
2772
2773
2774

2775
2776
2777
2778
2779
2780
2781
2755
2756
2757
2758
2759
2760
2761

2762
2763
2764

2765
2766
2767
2768
2769
2770
2771
2772
2773

2774
2775
2776
2777
2778
2779
2780
2781







-
+


-
+








-
+







** ^(Only a single authorizer can be in place on a database connection
** at a time.  Each call to sqlite3_set_authorizer overrides the
** previous call.)^  ^Disable the authorizer by installing a NULL callback.
** The authorizer is disabled by default.
**
** The authorizer callback must not do anything that will modify
** the database connection that invoked the authorizer callback.
** Note that [sqlite3_prepare_v3()] and [sqlite3_step()] both modify their
** Note that [sqlite3_prepare_v2()] and [sqlite3_step()] both modify their
** database connections for the meaning of "modify" in this paragraph.
**
** ^When [sqlite3_prepare_v3()] is used to prepare a statement, the
** ^When [sqlite3_prepare_v2()] is used to prepare a statement, the
** statement might be re-prepared during [sqlite3_step()] due to a 
** schema change.  Hence, the application should ensure that the
** correct authorizer callback remains in place during the [sqlite3_step()].
**
** ^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_v3() to reprepare a statement after a schema change.
** sqlite3_prepare_v2() to reprepare a statement after a schema change.
*/
int sqlite3_set_authorizer(
  sqlite3*,
  int (*xAuth)(void*,int,const char*,const char*,const char*,const char*),
  void *pUserData
);

3003
3004
3005
3006
3007
3008
3009
3010

3011
3012
3013
3014
3015
3016
3017
3003
3004
3005
3006
3007
3008
3009

3010
3011
3012
3013
3014
3015
3016
3017







-
+







**
** ^If the progress callback returns non-zero, the operation is
** interrupted.  This feature can be used to implement a
** "Cancel" button on a GUI progress dialog box.
**
** The progress handler callback must not do anything that will modify
** the database connection that invoked the progress handler.
** Note that [sqlite3_prepare_v3()] and [sqlite3_step()] both modify their
** Note that [sqlite3_prepare_v2()] and [sqlite3_step()] both modify their
** database connections for the meaning of "modify" in this paragraph.
**
*/
void sqlite3_progress_handler(sqlite3*, int, int(*)(void*), void*);

/*
** CAPI3REF: Opening A New Database Connection
3357
3358
3359
3360
3361
3362
3363
3364

3365
3366
3367
3368
3369
3370
3371
3357
3358
3359
3360
3361
3362
3363

3364
3365
3366
3367
3368
3369
3370
3371







-
+







** original SQL text is source code.  A prepared statement object 
** is the compiled object code.  All SQL must be converted into a
** prepared statement before it can be run.
**
** The life-cycle of a prepared statement object usually goes like this:
**
** <ol>
** <li> Create the prepared statement object using [sqlite3_prepare_v3()].
** <li> Create the prepared statement object using [sqlite3_prepare_v2()].
** <li> Bind values to [parameters] using the sqlite3_bind_*()
**      interfaces.
** <li> Run the SQL by calling [sqlite3_step()] one or more times.
** <li> Reset the prepared statement using [sqlite3_reset()] then go back
**      to step 2.  Do this zero or more times.
** <li> Destroy the object using [sqlite3_finalize()].
** </ol>
3439
3440
3441
3442
3443
3444
3445
3446

3447
3448
3449
3450
3451
3452
3453
3439
3440
3441
3442
3443
3444
3445

3446
3447
3448
3449
3450
3451
3452
3453







-
+







** <dd>The maximum depth of the parse tree on any expression.</dd>)^
**
** [[SQLITE_LIMIT_COMPOUND_SELECT]] ^(<dt>SQLITE_LIMIT_COMPOUND_SELECT</dt>
** <dd>The maximum number of terms in a compound SELECT statement.</dd>)^
**
** [[SQLITE_LIMIT_VDBE_OP]] ^(<dt>SQLITE_LIMIT_VDBE_OP</dt>
** <dd>The maximum number of instructions in a virtual machine program
** used to implement an SQL statement.  If [sqlite3_prepare_v3()] or
** used to implement an SQL statement.  If [sqlite3_prepare_v2()] or
** the equivalent tries to allocate space for more than this many opcodes
** in a single prepared statement, an SQLITE_NOMEM error is returned.</dd>)^
**
** [[SQLITE_LIMIT_FUNCTION_ARG]] ^(<dt>SQLITE_LIMIT_FUNCTION_ARG</dt>
** <dd>The maximum number of arguments on a function.</dd>)^
**
** [[SQLITE_LIMIT_ATTACHED]] ^(<dt>SQLITE_LIMIT_ATTACHED</dt>
3490
3491
3492
3493
3494
3495
3496
3497

3498
3499
3500
3501
3502
3503








3504
3505
3506
3507
3508
3509
3510
3490
3491
3492
3493
3494
3495
3496

3497






3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512







-
+
-
-
-
-
-
-
+
+
+
+
+
+
+
+







** "prepFlags" parameter of the [sqlite3_prepare_v3()] and
** [sqlite3_prepare16_v3()] interfaces.
**
** New flags may be added in future releases of SQLite.
**
** <dl>
** [[SQLITE_PREPARE_PERSISTENT]] ^(<dt>SQLITE_PREPARE_PERSISTENT</dt>
** <dd>The SQLITE_PREPARE_PERSISTENT flag causes [sqlite3_prepare_v3()]
** <dd>The SQLITE_PREPARE_PERSISTENT flag is a hint to the query planner
** and [sqlite3_prepare16_v3()]
** to optimize the resulting prepared statement to be retained for a 
** relatively long amount of time.)^  ^Without this flag,
** [sqlite3_prepare_v3()] and [sqlite3_prepare16_v3()] assume that
** the prepared statement will be used just once or at most a few times
** and then destroyed using [sqlite3_finalize()] relatively soon.
** that the prepared statement will be retained for a long time and
** probably reused many times.)^ ^Without this flag, [sqlite3_prepare_v3()]
** and [sqlite3_prepare16_v3()] assume that the prepared statement will 
** be used just once or at most a few times and then destroyed using
** [sqlite3_finalize()] relatively soon. The current implementation acts
** on this hint by avoiding the use of [lookaside memory] so as not to
** deplete the limited store of lookaside memory. Future versions of
** SQLite may act on this hint differently.
** </dl>
*/
#define SQLITE_PREPARE_PERSISTENT              0x01

/*
** CAPI3REF: Compiling An SQL Statement
** KEYWORDS: {SQL statement compiler}
3799
3800
3801
3802
3803
3804
3805
3806

3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825

3826
3827
3828
3829
3830
3831
3832
3801
3802
3803
3804
3805
3806
3807

3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826

3827
3828
3829
3830
3831
3832
3833
3834







-
+


















-
+








/*
** CAPI3REF: Binding Values To Prepared Statements
** KEYWORDS: {host parameter} {host parameters} {host parameter name}
** KEYWORDS: {SQL parameter} {SQL parameters} {parameter binding}
** METHOD: sqlite3_stmt
**
** ^(In the SQL statement text input to [sqlite3_prepare_v3()] and its variants,
** ^(In the SQL statement text input to [sqlite3_prepare_v2()] and its variants,
** literals may be replaced by a [parameter] that matches one of following
** templates:
**
** <ul>
** <li>  ?
** <li>  ?NNN
** <li>  :VVV
** <li>  @VVV
** <li>  $VVV
** </ul>
**
** In the templates above, NNN represents an integer literal,
** and VVV represents an alphanumeric identifier.)^  ^The values of these
** parameters (also called "host parameter names" or "SQL parameters")
** can be set using the sqlite3_bind_*() routines defined here.
**
** ^The first argument to the sqlite3_bind_*() routines is always
** a pointer to the [sqlite3_stmt] object returned from
** [sqlite3_prepare_v3()] or its variants.
** [sqlite3_prepare_v2()] or its variants.
**
** ^The second argument is the index of the SQL parameter to be set.
** ^The leftmost SQL parameter has an index of 1.  ^When the same named
** SQL parameter is used more than once, second and subsequent
** occurrences have the same index as the first occurrence.
** ^The index for named parameters can be looked up using the
** [sqlite3_bind_parameter_index()] API if desired.  ^The index
3878
3879
3880
3881
3882
3883
3884









3885
3886
3887
3888
3889
3890
3891
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902







+
+
+
+
+
+
+
+
+







** ^The sqlite3_bind_zeroblob() routine binds a BLOB of length N that
** is filled with zeroes.  ^A zeroblob uses a fixed amount of memory
** (just an integer to hold its size) while it is being processed.
** Zeroblobs are intended to serve as placeholders for BLOBs whose
** content is later written using
** [sqlite3_blob_open | incremental BLOB I/O] routines.
** ^A negative value for the zeroblob results in a zero-length BLOB.
**
** ^The sqlite3_bind_pointer(S,I,P,T) routine causes the I-th parameter in
** [prepared statement] S to have an SQL value of NULL, but to also be
** associated with the pointer P of type T.
** ^The sqlite3_bind_pointer() routine can be used to pass
** host-language pointers into [application-defined SQL functions].
** ^A parameter that is initialized using [sqlite3_bind_pointer()] appears
** to be an ordinary SQL NULL value to everything other than
** [sqlite3_value_pointer()].  The T parameter should be a static string.
**
** ^If any of the sqlite3_bind_*() routines are called with a NULL pointer
** for the [prepared statement] or with a prepared statement for which
** [sqlite3_step()] has been called more recently than [sqlite3_reset()],
** then the call will return [SQLITE_MISUSE].  If any sqlite3_bind_()
** routine is passed a [prepared statement] that has been finalized, the
** result is undefined and probably harmful.
3912
3913
3914
3915
3916
3917
3918

3919
3920
3921
3922
3923
3924
3925
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937







+







int sqlite3_bind_int64(sqlite3_stmt*, int, sqlite3_int64);
int sqlite3_bind_null(sqlite3_stmt*, int);
int sqlite3_bind_text(sqlite3_stmt*,int,const char*,int,void(*)(void*));
int sqlite3_bind_text16(sqlite3_stmt*, int, const void*, int, void(*)(void*));
int sqlite3_bind_text64(sqlite3_stmt*, int, const char*, sqlite3_uint64,
                         void(*)(void*), unsigned char encoding);
int sqlite3_bind_value(sqlite3_stmt*, int, const sqlite3_value*);
int sqlite3_bind_pointer(sqlite3_stmt*, int, void*, const char*);
int sqlite3_bind_zeroblob(sqlite3_stmt*, int, int n);
int sqlite3_bind_zeroblob64(sqlite3_stmt*, int, sqlite3_uint64);

/*
** CAPI3REF: Number Of SQL Parameters
** METHOD: sqlite3_stmt
**
4291
4292
4293
4294
4295
4296
4297
4298

4299
4300
4301
4302
4303
4304
4305
4303
4304
4305
4306
4307
4308
4309

4310
4311
4312
4313
4314
4315
4316
4317







-
+







** </table></blockquote>
**
** <b>Details:</b>
**
** ^These routines return information about a single column of the current
** result row of a query.  ^In every case the first argument is a pointer
** to the [prepared statement] that is being evaluated (the [sqlite3_stmt*]
** that was returned from [sqlite3_prepare_v3()] or one of its variants)
** that was returned from [sqlite3_prepare_v2()] or one of its variants)
** and the second argument is the index of the column for which information
** should be returned. ^The leftmost column of the result set has the index 0.
** ^The number of columns in the result can be determined using
** [sqlite3_column_count()].
**
** If the SQL statement does not currently point to a valid row, or if the
** column index is out of range, the result is undefined.
4705
4706
4707
4708
4709
4710
4711

4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731

4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747






4748
4749
4750
4751
4752
4753
4754
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743

4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773







+



















-
+
















+
+
+
+
+
+







**
** <b>Summary:</b>
** <blockquote><table border=0 cellpadding=0 cellspacing=0>
** <tr><td><b>sqlite3_value_blob</b><td>&rarr;<td>BLOB value
** <tr><td><b>sqlite3_value_double</b><td>&rarr;<td>REAL value
** <tr><td><b>sqlite3_value_int</b><td>&rarr;<td>32-bit INTEGER value
** <tr><td><b>sqlite3_value_int64</b><td>&rarr;<td>64-bit INTEGER value
** <tr><td><b>sqlite3_value_pointer</b><td>&rarr;<td>Pointer value
** <tr><td><b>sqlite3_value_text</b><td>&rarr;<td>UTF-8 TEXT value
** <tr><td><b>sqlite3_value_text16</b><td>&rarr;<td>UTF-16 TEXT value in
** the native byteorder
** <tr><td><b>sqlite3_value_text16be</b><td>&rarr;<td>UTF-16be TEXT value
** <tr><td><b>sqlite3_value_text16le</b><td>&rarr;<td>UTF-16le TEXT value
** <tr><td>&nbsp;<td>&nbsp;<td>&nbsp;
** <tr><td><b>sqlite3_value_bytes</b><td>&rarr;<td>Size of a BLOB
** or a UTF-8 TEXT in bytes
** <tr><td><b>sqlite3_value_bytes16&nbsp;&nbsp;</b>
** <td>&rarr;&nbsp;&nbsp;<td>Size of UTF-16
** TEXT in bytes
** <tr><td><b>sqlite3_value_type</b><td>&rarr;<td>Default
** datatype of the value
** <tr><td><b>sqlite3_value_numeric_type&nbsp;&nbsp;</b>
** <td>&rarr;&nbsp;&nbsp;<td>Best numeric datatype of the value
** </table></blockquote>
**
** <b>Details:</b>
**
** This routine extract type, size, and content information from
** These routines extract type, size, and content information from
** [protected sqlite3_value] objects.  Protected sqlite3_value objects
** are used to pass parameter information into implementation of
** [application-defined SQL functions] and [virtual tables].
**
** These routines work only with [protected sqlite3_value] objects.
** Any attempt to use these routines on an [unprotected sqlite3_value]
** is not threadsafe.
**
** ^These routines work just like the corresponding [column access functions]
** except that these routines take a single [protected sqlite3_value] object
** pointer instead of a [sqlite3_stmt*] pointer and an integer column number.
**
** ^The sqlite3_value_text16() interface extracts a UTF-16 string
** in the native byte-order of the host machine.  ^The
** sqlite3_value_text16be() and sqlite3_value_text16le() interfaces
** extract UTF-16 strings as big-endian and little-endian respectively.
**
** ^If [sqlite3_value] object V was initialized 
** using [sqlite3_bind_pointer(S,I,P,X)] or [sqlite3_result_pointer(C,P,X)]
** and if X and Y are strings that compare equal according to strcmp(X,Y),
** then sqlite3_value_pointer(V,Y) will return the pointer P.  ^Otherwise,
** sqlite3_value_pointer(V,Y) returns a NULL.
**
** ^(The sqlite3_value_type(V) interface returns the
** [SQLITE_INTEGER | datatype code] for the initial datatype of the
** [sqlite3_value] object V. The returned value is one of [SQLITE_INTEGER],
** [SQLITE_FLOAT], [SQLITE_TEXT], [SQLITE_BLOB], or [SQLITE_NULL].)^
** Other interfaces might change the datatype for an sqlite3_value object.
** For example, if the datatype is initially SQLITE_INTEGER and
4774
4775
4776
4777
4778
4779
4780

4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818




4819
4820
4821
4822
4823
4824
4825







+


















-
-
-
-







** These routines must be called from the same thread as
** the SQL function that supplied the [sqlite3_value*] parameters.
*/
const void *sqlite3_value_blob(sqlite3_value*);
double sqlite3_value_double(sqlite3_value*);
int sqlite3_value_int(sqlite3_value*);
sqlite3_int64 sqlite3_value_int64(sqlite3_value*);
void *sqlite3_value_pointer(sqlite3_value*, const char*);
const unsigned char *sqlite3_value_text(sqlite3_value*);
const void *sqlite3_value_text16(sqlite3_value*);
const void *sqlite3_value_text16le(sqlite3_value*);
const void *sqlite3_value_text16be(sqlite3_value*);
int sqlite3_value_bytes(sqlite3_value*);
int sqlite3_value_bytes16(sqlite3_value*);
int sqlite3_value_type(sqlite3_value*);
int 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
** information can be used to pass a limited amount of context from
** 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.
*/
unsigned int sqlite3_value_subtype(sqlite3_value*);

/*
** CAPI3REF: Copy And Free SQL Values
** METHOD: sqlite3_value
**
5065
5066
5067
5068
5069
5070
5071
5072

5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083









5084
5085
5086
5087
5088
5089
5090
5081
5082
5083
5084
5085
5086
5087

5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115







-
+











+
+
+
+
+
+
+
+
+







** ^If the 4th parameter to the sqlite3_result_text* interfaces or to
** sqlite3_result_blob is the special constant SQLITE_STATIC, then SQLite
** assumes that the text or BLOB result is in constant space and does not
** copy the content of the parameter nor call a destructor on the content
** when it has finished using that result.
** ^If the 4th parameter to the sqlite3_result_text* interfaces
** or sqlite3_result_blob is the special constant SQLITE_TRANSIENT
** then SQLite makes a copy of the result into space obtained from
** then SQLite makes a copy of the result into space obtained
** from [sqlite3_malloc()] before it returns.
**
** ^The sqlite3_result_value() interface sets the result of
** the application-defined function to be a copy of the
** [unprotected sqlite3_value] object specified by the 2nd parameter.  ^The
** sqlite3_result_value() interface makes a copy of the [sqlite3_value]
** so that the [sqlite3_value] specified in the parameter may change or
** be deallocated after sqlite3_result_value() returns without harm.
** ^A [protected sqlite3_value] object may always be used where an
** [unprotected sqlite3_value] object is required, so either
** kind of [sqlite3_value] object can be used with this interface.
**
** ^The sqlite3_result_pointer(C,P,T) interface sets the result to an
** SQL NULL value, just like [sqlite3_result_null(C)], except that it
** also associates the host-language pointer P or type T with that 
** NULL value such that the pointer can be retrieved within an
** [application-defined SQL function] using [sqlite3_value_pointer()].
** The T parameter should be a static string.
** This mechanism can be used to pass non-SQL values between
** application-defined functions.
**
** 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.
*/
void sqlite3_result_blob(sqlite3_context*, const void*, int, void(*)(void*));
void sqlite3_result_blob64(sqlite3_context*,const void*,
5101
5102
5103
5104
5105
5106
5107

5108
5109
5110
5111
5112
5113
5114
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140







+







void sqlite3_result_text(sqlite3_context*, const char*, int, void(*)(void*));
void sqlite3_result_text64(sqlite3_context*, const char*,sqlite3_uint64,
                           void(*)(void*), unsigned char encoding);
void sqlite3_result_text16(sqlite3_context*, const void*, int, void(*)(void*));
void sqlite3_result_text16le(sqlite3_context*, const void*, int,void(*)(void*));
void sqlite3_result_text16be(sqlite3_context*, const void*, int,void(*)(void*));
void sqlite3_result_value(sqlite3_context*, sqlite3_value*);
void sqlite3_result_pointer(sqlite3_context*, void*, const char*);
void sqlite3_result_zeroblob(sqlite3_context*, int n);
int sqlite3_result_zeroblob64(sqlite3_context*, sqlite3_uint64 n);


/*
** CAPI3REF: Setting The Subtype Of An SQL Function
** METHOD: sqlite3_context
5461
5462
5463
5464
5465
5466
5467
5468

5469
5470
5471
5472
5473
5474
5475
5487
5488
5489
5490
5491
5492
5493

5494
5495
5496
5497
5498
5499
5500
5501







-
+







** 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_v3()] call (or its variants) that was used to
** to the [sqlite3_prepare_v2()] call (or its variants) that was used to
** create the statement in the first place.
*/
sqlite3 *sqlite3_db_handle(sqlite3_stmt*);

/*
** CAPI3REF: Return The Filename For A Database Connection
** METHOD: sqlite3
5537
5538
5539
5540
5541
5542
5543
5544

5545
5546
5547
5548
5549
5550
5551
5563
5564
5565
5566
5567
5568
5569

5570
5571
5572
5573
5574
5575
5576
5577







-
+







** The commit and rollback hook callbacks are not reentrant.
** The callback implementation must not do anything that will modify
** the database connection that invoked the callback.  Any actions
** to modify the database connection must be deferred until after the
** completion of the [sqlite3_step()] call that triggered the commit
** or rollback hook in the first place.
** Note that running any other SQL statements, including SELECT statements,
** or merely calling [sqlite3_prepare_v3()] and [sqlite3_step()] will modify
** or merely calling [sqlite3_prepare_v2()] and [sqlite3_step()] will modify
** the database connections for the meaning of "modify" in this paragraph.
**
** ^Registering a NULL function disables the callback.
**
** ^When the commit hook callback routine returns zero, the [COMMIT]
** operation is allowed to continue normally.  ^If the commit hook
** returns non-zero, then the [COMMIT] is converted into a [ROLLBACK].
5597
5598
5599
5600
5601
5602
5603
5604

5605
5606
5607
5608
5609
5610
5611
5623
5624
5625
5626
5627
5628
5629

5630
5631
5632
5633
5634
5635
5636
5637







-
+







** The exceptions defined in this paragraph might change in a future
** release of SQLite.
**
** The update hook implementation must not do anything that will modify
** the database connection that invoked the update hook.  Any actions
** to modify the database connection must be deferred until after the
** completion of the [sqlite3_step()] call that triggered the update hook.
** Note that [sqlite3_prepare_v3()] and [sqlite3_step()] both modify their
** Note that [sqlite3_prepare_v2()] and [sqlite3_step()] both modify their
** database connections for the meaning of "modify" in this paragraph.
**
** ^The sqlite3_update_hook(D,C,P) function
** returns the P argument from the previous call
** on the same [database connection] D, or NULL for
** the first call on D.
**
Changes to src/sqlite3ext.h.
280
281
282
283
284
285
286








287
288
289
290
291
292
293
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301







+
+
+
+
+
+
+
+







  /* Version 3.12.0 and later */
  int (*system_errno)(sqlite3*);
  /* Version 3.14.0 and later */
  int (*trace_v2)(sqlite3*,unsigned,int(*)(unsigned,void*,void*,void*),void*);
  char *(*expanded_sql)(sqlite3_stmt*);
  /* Version 3.18.0 and later */
  void (*set_last_insert_rowid)(sqlite3*,sqlite3_int64);
  /* Version 3.20.0 and later */
  int (*prepare_v3)(sqlite3*,const char*,int,unsigned int,
                    sqlite3_stmt**,const char**);
  int (*prepare16_v3)(sqlite3*,const void*,int,unsigned int,
                      sqlite3_stmt**,const void**);
  int (*bind_pointer)(sqlite3_stmt*,int,void*,const char*);
  void (*result_pointer)(sqlite3_context*,void*,const char*);
  void *(*value_pointer)(sqlite3_value*,const char*);
};

/*
** This is the function signature used for all extension entry points.  It
** is also defined in the file "loadext.c".
*/
typedef int (*sqlite3_loadext_entry)(
540
541
542
543
544
545
546






547
548
549
550
551
552
553
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567







+
+
+
+
+
+







/* Version 3.12.0 and later */
#define sqlite3_system_errno           sqlite3_api->system_errno
/* Version 3.14.0 and later */
#define sqlite3_trace_v2               sqlite3_api->trace_v2
#define sqlite3_expanded_sql           sqlite3_api->expanded_sql
/* Version 3.18.0 and later */
#define sqlite3_set_last_insert_rowid  sqlite3_api->set_last_insert_rowid
/* Version 3.20.0 and later */
#define sqlite3_prepare_v3             sqlite3_api->prepare_v3
#define sqlite3_prepare16_v3           sqlite3_api->prepare16_v3
#define sqlite3_bind_pointer           sqlite3_api->bind_pointer
#define sqlite3_result_pointer         sqlite3_api->result_pointer
#define sqlite3_value_pointer          sqlite3_api->value_pointer
#endif /* !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION) */

#if !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION)
  /* This case when the file really is being compiled as a loadable 
  ** extension */
# define SQLITE_EXTENSION_INIT1     const sqlite3_api_routines *sqlite3_api=0;
# define SQLITE_EXTENSION_INIT2(v)  sqlite3_api=v;
Changes to src/sqliteInt.h.
2370
2371
2372
2373
2374
2375
2376
2377

2378
2379
2380
2381
2382
2383
2384
2370
2371
2372
2373
2374
2375
2376

2377
2378
2379
2380
2381
2382
2383
2384







-
+







};

/*
** The following are the meanings of bits in the Expr.flags field.
*/
#define EP_FromJoin  0x000001 /* Originates in ON/USING clause of outer join */
#define EP_Agg       0x000002 /* Contains one or more aggregate functions */
#define EP_Resolved  0x000004 /* IDs have been resolved to COLUMNs */
                  /* 0x000004 // available for use */
                  /* 0x000008 // available for use */
#define EP_Distinct  0x000010 /* Aggregate function with DISTINCT keyword */
#define EP_VarSelect 0x000020 /* pSelect is correlated, not constant */
#define EP_DblQuoted 0x000040 /* token.z was originally in "..." */
#define EP_InfixFunc 0x000080 /* True for an infix function: LIKE, GLOB, etc */
#define EP_Collate   0x000100 /* Tree contains a TK_COLLATE operator */
#define EP_Generic   0x000200 /* Ignore COLLATE or affinity on this tree */
3923
3924
3925
3926
3927
3928
3929

3930

3931
3932
3933
3934
3935
3936
3937
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939







+

+







int sqlite3FixSelect(DbFixer*, Select*);
int sqlite3FixExpr(DbFixer*, Expr*);
int sqlite3FixExprList(DbFixer*, ExprList*);
int sqlite3FixTriggerStep(DbFixer*, TriggerStep*);
int sqlite3AtoF(const char *z, double*, int, u8);
int sqlite3GetInt32(const char *, int*);
int sqlite3Atoi(const char*);
#ifndef SQLITE_OMIT_UTF16
int sqlite3Utf16ByteLen(const void *pData, int nChar);
#endif
int sqlite3Utf8CharLen(const char *pData, int nByte);
u32 sqlite3Utf8Read(const u8**);
LogEst sqlite3LogEst(u64);
LogEst sqlite3LogEstAdd(LogEst,LogEst);
#ifndef SQLITE_OMIT_VIRTUALTABLE
LogEst sqlite3LogEstFromDouble(double);
#endif
4012
4013
4014
4015
4016
4017
4018

4019

4020
4021
4022
4023
4024
4025
4026
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030







+

+







const void *sqlite3ValueText(sqlite3_value*, u8);
int sqlite3ValueBytes(sqlite3_value*, u8);
void sqlite3ValueSetStr(sqlite3_value*, int, const void *,u8,
                        void(*)(void*));
void sqlite3ValueSetNull(sqlite3_value*);
void sqlite3ValueFree(sqlite3_value*);
sqlite3_value *sqlite3ValueNew(sqlite3 *);
#ifndef SQLITE_OMIT_UTF16
char *sqlite3Utf16to8(sqlite3 *, const void*, int, u8);
#endif
int sqlite3ValueFromExpr(sqlite3 *, Expr *, u8, u8, sqlite3_value **);
void sqlite3ValueApplyAffinity(sqlite3_value *, u8, u8);
#ifndef SQLITE_AMALGAMATION
extern const unsigned char sqlite3OpcodeProperty[];
extern const char sqlite3StrBINARY[];
extern const unsigned char sqlite3UpperToLower[];
extern const unsigned char sqlite3CtypeMap[];
4376
4377
4378
4379
4380
4381
4382

4383

4384
4385
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391







+

+



int sqlite3ExprVectorSize(Expr *pExpr);
int sqlite3ExprIsVector(Expr *pExpr);
Expr *sqlite3VectorFieldSubexpr(Expr*, int);
Expr *sqlite3ExprForVectorField(Parse*,Expr*,int);
void sqlite3VectorErrorMsg(Parse*, Expr*);

#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
const char **sqlite3CompileOptions(int *pnOpt);
#endif

#endif /* SQLITEINT_H */
Changes to src/test1.c.
6916
6917
6918
6919
6920
6921
6922

6923
6924
6925
6926
6927
6928
6929
6930
6931
6932
6933
6934
6935
6936
6937
6938
6939
6940
6941

6942
6943
6944
6945
6946
6947
6948
6916
6917
6918
6919
6920
6921
6922
6923
6924
6925
6926
6927
6928
6929
6930
6931
6932
6933
6934
6935
6936
6937
6938
6939
6940
6941
6942
6943
6944
6945
6946
6947
6948
6949
6950







+



















+







  extern int sqlite3_percentile_init(sqlite3*,char**,const sqlite3_api_routines*);
  extern int sqlite3_regexp_init(sqlite3*,char**,const sqlite3_api_routines*);
  extern int sqlite3_remember_init(sqlite3*,char**,const sqlite3_api_routines*);
  extern int sqlite3_series_init(sqlite3*,char**,const sqlite3_api_routines*);
  extern int sqlite3_spellfix_init(sqlite3*,char**,const sqlite3_api_routines*);
  extern int sqlite3_totype_init(sqlite3*,char**,const sqlite3_api_routines*);
  extern int sqlite3_wholenumber_init(sqlite3*,char**,const sqlite3_api_routines*);
  extern int sqlite3_unionvtab_init(sqlite3*,char**,const sqlite3_api_routines*);
  static const struct {
    const char *zExtName;
    int (*pInit)(sqlite3*,char**,const sqlite3_api_routines*);
  } aExtension[] = {
    { "amatch",                sqlite3_amatch_init               },
    { "carray",                sqlite3_carray_init               },
    { "closure",               sqlite3_closure_init              },
    { "csv",                   sqlite3_csv_init                  },
    { "eval",                  sqlite3_eval_init                 },
    { "fileio",                sqlite3_fileio_init               },
    { "fuzzer",                sqlite3_fuzzer_init               },
    { "ieee754",               sqlite3_ieee_init                 },
    { "nextchar",              sqlite3_nextchar_init             },
    { "percentile",            sqlite3_percentile_init           },
    { "regexp",                sqlite3_regexp_init               },
    { "remember",              sqlite3_remember_init             },
    { "series",                sqlite3_series_init               },
    { "spellfix",              sqlite3_spellfix_init             },
    { "totype",                sqlite3_totype_init               },
    { "unionvtab",             sqlite3_unionvtab_init            },
    { "wholenumber",           sqlite3_wholenumber_init          },
  };
  sqlite3 *db;
  const char *zName;
  int i, j, rc;
  char *zErrMsg = 0;
  if( objc<3 ){
Changes to src/treeview.c.
378
379
380
381
382
383
384
385

386
387
388
389
390

391
392
393
394
395

396
397
398
399
400
401
402
378
379
380
381
382
383
384

385
386
387
388
389

390
391
392
393
394

395
396
397
398
399
400
401
402







-
+




-
+




-
+







      if( pFarg ){
        sqlite3TreeViewExprList(pView, pFarg, 0, 0);
      }
      break;
    }
#ifndef SQLITE_OMIT_SUBQUERY
    case TK_EXISTS: {
      sqlite3TreeViewLine(pView, "EXISTS-expr");
      sqlite3TreeViewLine(pView, "EXISTS-expr flags=0x%x", pExpr->flags);
      sqlite3TreeViewSelect(pView, pExpr->x.pSelect, 0);
      break;
    }
    case TK_SELECT: {
      sqlite3TreeViewLine(pView, "SELECT-expr");
      sqlite3TreeViewLine(pView, "SELECT-expr flags=0x%x", pExpr->flags);
      sqlite3TreeViewSelect(pView, pExpr->x.pSelect, 0);
      break;
    }
    case TK_IN: {
      sqlite3TreeViewLine(pView, "IN");
      sqlite3TreeViewLine(pView, "IN flags=0x%x", pExpr->flags);
      sqlite3TreeViewExpr(pView, pExpr->pLeft, 1);
      if( ExprHasProperty(pExpr, EP_xIsSelect) ){
        sqlite3TreeViewSelect(pView, pExpr->x.pSelect, 0);
      }else{
        sqlite3TreeViewExprList(pView, pExpr->x.pList, 0, 0);
      }
      break;
Changes to src/utf.c.
328
329
330
331
332
333
334

335

336
337
338
339
340
341
342
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344







+

+







    char zBuf[100];
    sqlite3VdbeMemPrettyPrint(pMem, zBuf);
    fprintf(stderr, "OUTPUT: %s\n", zBuf);
  }
#endif
  return SQLITE_OK;
}
#endif /* SQLITE_OMIT_UTF16 */

#ifndef SQLITE_OMIT_UTF16
/*
** This routine checks for a byte-order mark at the beginning of the 
** UTF-16 string stored in *pMem. If one is present, it is removed and
** the encoding of the Mem adjusted. This routine does not do any
** byte-swapping, it just sets Mem.enc appropriately.
**
** The allocation (static, dynamic etc.) and encoding of the Mem may be
Changes to src/vdbe.h.
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117















118
119
120
121



122
123

124
125
126
127

128
129
130
131
132
133
134
103
104
105
106
107
108
109








110
111
112
113
114
115
116
117
118
119
120
121
122
123
124




125
126
127


128




129
130
131
132
133
134
135
136







-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
+
+
+
-
-
+
-
-
-
-
+







  signed char p3;     /* Third parameter */
};
typedef struct VdbeOpList VdbeOpList;

/*
** Allowed values of VdbeOp.p4type
*/
#define P4_NOTUSED    0   /* The P4 parameter is not used */
#define P4_DYNAMIC  (-1)  /* Pointer to a string obtained from sqliteMalloc() */
#define P4_STATIC   (-2)  /* Pointer to a static string */
#define P4_COLLSEQ  (-3)  /* P4 is a pointer to a CollSeq structure */
#define P4_FUNCDEF  (-4)  /* P4 is a pointer to a FuncDef structure */
#define P4_KEYINFO  (-5)  /* P4 is a pointer to a KeyInfo structure */
#define P4_EXPR     (-6)  /* P4 is a pointer to an Expr tree */
#define P4_MEM      (-7)  /* P4 is a pointer to a Mem*    structure */
#define P4_NOTUSED      0   /* The P4 parameter is not used */
#define P4_TRANSIENT    0   /* P4 is a pointer to a transient string */
#define P4_STATIC     (-1)  /* Pointer to a static string */
#define P4_COLLSEQ    (-2)  /* P4 is a pointer to a CollSeq structure */
#define P4_INT32      (-3)  /* P4 is a 32-bit signed integer */
#define P4_SUBPROGRAM (-4)  /* P4 is a pointer to a SubProgram structure */
#define P4_ADVANCE    (-5)  /* P4 is a pointer to BtreeNext() or BtreePrev() */
#define P4_TABLE      (-6)  /* P4 is a pointer to a Table structure */
/* Above do not own any resources.  Must free those below */
#define P4_FREE_IF_LE (-7)
#define P4_DYNAMIC    (-7)  /* Pointer to memory from sqliteMalloc() */
#define P4_FUNCDEF    (-8)  /* P4 is a pointer to a FuncDef structure */
#define P4_KEYINFO    (-9)  /* P4 is a pointer to a KeyInfo structure */
#define P4_EXPR       (-10) /* P4 is a pointer to an Expr tree */
#define P4_MEM        (-11) /* P4 is a pointer to a Mem*    structure */
#define P4_TRANSIENT  0   /* P4 is a pointer to a transient string */
#define P4_VTAB     (-8) /* P4 is a pointer to an sqlite3_vtab structure */
#define P4_REAL     (-9) /* P4 is a 64-bit floating point value */
#define P4_INT64    (-10) /* P4 is a 64-bit signed integer */
#define P4_VTAB       (-12) /* P4 is a pointer to an sqlite3_vtab structure */
#define P4_REAL       (-13) /* P4 is a 64-bit floating point value */
#define P4_INT64      (-14) /* P4 is a 64-bit signed integer */
#define P4_INT32    (-11) /* P4 is a 32-bit signed integer */
#define P4_INTARRAY (-12) /* P4 is a vector of 32-bit integers */
#define P4_INTARRAY   (-15) /* P4 is a vector of 32-bit integers */
#define P4_SUBPROGRAM  (-13) /* P4 is a pointer to a SubProgram structure */
#define P4_ADVANCE  (-14) /* P4 is a pointer to BtreeNext() or BtreePrev() */
#define P4_TABLE    (-15) /* P4 is a pointer to a Table structure */
#define P4_FUNCCTX  (-16) /* P4 is a pointer to an sqlite3_context object */
#define P4_FUNCCTX    (-16) /* P4 is a pointer to an sqlite3_context object */

/* Error message codes for OP_Halt */
#define P5_ConstraintNotNull 1
#define P5_ConstraintUnique  2
#define P5_ConstraintCheck   3
#define P5_ConstraintFK      4

Changes to src/vdbeInt.h.
186
187
188
189
190
191
192

193
194
195
196
197
198
199
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200







+







** integer etc.) of the same value.
*/
struct sqlite3_value {
  union MemValue {
    double r;           /* Real value used when MEM_Real is set in flags */
    i64 i;              /* Integer value used when MEM_Int is set in flags */
    int nZero;          /* Used when bit MEM_Zero is set in flags */
    void *pPtr;         /* Pointer when flags=MEM_NULL and eSubtype='p' */
    FuncDef *pDef;      /* Used only when flags==MEM_Agg */
    RowSet *pRowSet;    /* Used only when flags==MEM_RowSet */
    VdbeFrame *pFrame;  /* Used when flags==MEM_Frame */
  } u;
  u16 flags;          /* Some combination of MEM_Null, MEM_Str, MEM_Dyn, etc. */
  u8  enc;            /* SQLITE_UTF8, SQLITE_UTF16BE, SQLITE_UTF16LE */
  u8  eSubtype;       /* Subtype for this value */
471
472
473
474
475
476
477

478
479
480
481
482
483
484
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486







+







int sqlite3VdbeMemSetStr(Mem*, const char*, int, u8, void(*)(void*));
void sqlite3VdbeMemSetInt64(Mem*, i64);
#ifdef SQLITE_OMIT_FLOATING_POINT
# define sqlite3VdbeMemSetDouble sqlite3VdbeMemSetInt64
#else
  void sqlite3VdbeMemSetDouble(Mem*, double);
#endif
void sqlite3VdbeMemSetPointer(Mem*, void*, const char*);
void sqlite3VdbeMemInit(Mem*,sqlite3*,u16);
void sqlite3VdbeMemSetNull(Mem*);
void sqlite3VdbeMemSetZeroBlob(Mem*,int);
void sqlite3VdbeMemSetRowSet(Mem*);
int sqlite3VdbeMemMakeWriteable(Mem*);
int sqlite3VdbeMemStringify(Mem*, u8, u8);
i64 sqlite3VdbeIntValue(Mem*);
530
531
532
533
534
535
536
537
538
539
540
541


542


543
544
545
546
547
548
549
550
551
552
532
533
534
535
536
537
538

539
540
541
542
543
544

545
546
547
548
549
550
551
552
553
554
555
556







-




+
+
-
+
+











#ifndef SQLITE_OMIT_FOREIGN_KEY
int sqlite3VdbeCheckFk(Vdbe *, int);
#else
# define sqlite3VdbeCheckFk(p,i) 0
#endif

int sqlite3VdbeMemTranslate(Mem*, u8);
#ifdef SQLITE_DEBUG
  void sqlite3VdbePrintSql(Vdbe*);
  void sqlite3VdbeMemPrettyPrint(Mem *pMem, char *zBuf);
#endif
#ifndef SQLITE_OMIT_UTF16
  int sqlite3VdbeMemTranslate(Mem*, u8);
int sqlite3VdbeMemHandleBom(Mem *pMem);
  int sqlite3VdbeMemHandleBom(Mem *pMem);
#endif

#ifndef SQLITE_OMIT_INCRBLOB
  int sqlite3VdbeMemExpandBlob(Mem *);
  #define ExpandBlob(P) (((P)->flags&MEM_Zero)?sqlite3VdbeMemExpandBlob(P):0)
#else
  #define sqlite3VdbeMemExpandBlob(x) SQLITE_OK
  #define ExpandBlob(P) SQLITE_OK
#endif

#endif /* !defined(SQLITE_VDBEINT_H) */
Changes to src/vdbeapi.c.
194
195
196
197
198
199
200












201
202
203
204
205
206
207
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219







+
+
+
+
+
+
+
+
+
+
+
+







}
sqlite_int64 sqlite3_value_int64(sqlite3_value *pVal){
  return sqlite3VdbeIntValue((Mem*)pVal);
}
unsigned int sqlite3_value_subtype(sqlite3_value *pVal){
  Mem *pMem = (Mem*)pVal;
  return ((pMem->flags & MEM_Subtype) ? pMem->eSubtype : 0);
}
void *sqlite3_value_pointer(sqlite3_value *pVal, const char *zPType){
  Mem *p = (Mem*)pVal;
  if( p->flags==(MEM_Null|MEM_Subtype|MEM_Term|MEM_Static)
   && zPType!=0
   && p->eSubtype=='p'
   && strcmp(p->z, zPType)==0
  ){
    return p->u.pPtr;
  }else{
    return 0;
  }
}
const unsigned char *sqlite3_value_text(sqlite3_value *pVal){
  return (const unsigned char *)sqlite3ValueText(pVal, SQLITE_UTF8);
}
#ifndef SQLITE_OMIT_UTF16
const void *sqlite3_value_text16(sqlite3_value* pVal){
  return sqlite3ValueText(pVal, SQLITE_UTF16NATIVE);
372
373
374
375
376
377
378






379
380
381
382
383
384
385
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403







+
+
+
+
+
+







void sqlite3_result_int64(sqlite3_context *pCtx, i64 iVal){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  sqlite3VdbeMemSetInt64(pCtx->pOut, iVal);
}
void sqlite3_result_null(sqlite3_context *pCtx){
  assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
  sqlite3VdbeMemSetNull(pCtx->pOut);
}
void sqlite3_result_pointer(sqlite3_context *pCtx, void *pPtr, const char *zPT){
  Mem *pOut = pCtx->pOut;
  assert( sqlite3_mutex_held(pOut->db->mutex) );
  sqlite3VdbeMemSetNull(pOut);
  sqlite3VdbeMemSetPointer(pOut, pPtr, zPT);
}
void 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;
}
1375
1376
1377
1378
1379
1380
1381










1382
1383
1384
1385
1386
1387
1388
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416







+
+
+
+
+
+
+
+
+
+







  int rc;
  Vdbe *p = (Vdbe*)pStmt;
  rc = vdbeUnbind(p, i);
  if( rc==SQLITE_OK ){
    sqlite3_mutex_leave(p->db->mutex);
  }
  return rc;
}
int sqlite3_bind_pointer(sqlite3_stmt *pStmt, int i, void *pPtr,const char *zT){
  int rc;
  Vdbe *p = (Vdbe*)pStmt;
  rc = vdbeUnbind(p, i);
  if( rc==SQLITE_OK ){
    sqlite3VdbeMemSetPointer(&p->aVar[i-1], pPtr, zT);
    sqlite3_mutex_leave(p->db->mutex);
  }
  return rc;
}
int sqlite3_bind_text( 
  sqlite3_stmt *pStmt, 
  int i, 
  const char *zData, 
  int nData, 
  void (*xDel)(void*)
Changes to src/vdbeaux.c.
882
883
884
885
886
887
888
889

890
891
892
893
894
895
896
882
883
884
885
886
887
888

889
890
891
892
893
894
895
896







-
+







** opcodes contained within. If aOp is not NULL it is assumed to contain 
** nOp entries. 
*/
static void vdbeFreeOpArray(sqlite3 *db, Op *aOp, int nOp){
  if( aOp ){
    Op *pOp;
    for(pOp=&aOp[nOp-1]; pOp>=aOp; pOp--){
      if( pOp->p4type ) freeP4(db, pOp->p4type, pOp->p4.p);
      if( pOp->p4type <= P4_FREE_IF_LE ) freeP4(db, pOp->p4type, pOp->p4.p);
#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
      sqlite3DbFree(db, pOp->zComment);
#endif     
    }
    sqlite3DbFreeNN(db, aOp);
  }
}
Changes to src/vdbemem.c.
700
701
702
703
704
705
706














707
708
709
710
711
712
713
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727







+
+
+
+
+
+
+
+
+
+
+
+
+
+







  if( VdbeMemDynamic(pMem) ){
    vdbeReleaseAndSetInt64(pMem, val);
  }else{
    pMem->u.i = val;
    pMem->flags = MEM_Int;
  }
}

/*
** Set the value stored in *pMem should already be a NULL.
** Also store a pointer to go with it.
*/
void sqlite3VdbeMemSetPointer(Mem *pMem, void *pPtr, const char *zPType){
  assert( pMem->flags==MEM_Null );
  if( zPType ){
    pMem->flags = MEM_Null|MEM_Subtype|MEM_Term|MEM_Static;
    pMem->u.pPtr = pPtr;
    pMem->eSubtype = 'p';
    pMem->z = (char*)zPType;
  }
}

#ifndef SQLITE_OMIT_FLOATING_POINT
/*
** Delete any previous value and set the value stored in *pMem to val,
** manifest type REAL.
*/
void sqlite3VdbeMemSetDouble(Mem *pMem, double val){
Changes to src/where.c.
604
605
606
607
608
609
610









611
612
613
614
615
616
617
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626







+
+
+
+
+
+
+
+
+







  WhereTerm *pTerm,              /* WHERE clause term to check */
  struct SrcList_item *pSrc,     /* Table we are trying to access */
  Bitmask notReady               /* Tables in outer loops of the join */
){
  char aff;
  if( pTerm->leftCursor!=pSrc->iCursor ) return 0;
  if( (pTerm->eOperator & (WO_EQ|WO_IS))==0 ) return 0;
  if( (pSrc->fg.jointype & JT_LEFT) 
   && !ExprHasProperty(pTerm->pExpr, EP_FromJoin)
   && (pTerm->eOperator & WO_IS)
  ){
    /* Cannot use an IS term from the WHERE clause as an index driver for
    ** the RHS of a LEFT JOIN. Such a term can only be used if it is from
    ** the ON clause.  */
    return 0;
  }
  if( (pTerm->prereqRight & notReady)!=0 ) return 0;
  if( pTerm->u.leftColumn<0 ) return 0;
  aff = pSrc->pTab->aCol[pTerm->u.leftColumn].affinity;
  if( !sqlite3IndexAffinityOk(pTerm->pExpr, aff) ) return 0;
  testcase( pTerm->pExpr->op==TK_IS );
  return 1;
}
Changes to src/whereInt.h.
280
281
282
283
284
285
286

287
288
289
290
291
292
293
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294







+







#else
#  define TERM_VNULL    0x00   /* Disabled if not using stat3 */
#endif
#define TERM_LIKEOPT    0x100  /* Virtual terms from the LIKE optimization */
#define TERM_LIKECOND   0x200  /* Conditionally this LIKE operator term */
#define TERM_LIKE       0x400  /* The original LIKE operator */
#define TERM_IS         0x800  /* Term.pExpr is an IS operator */
#define TERM_VARSELECT  0x1000 /* Term.pExpr contains a correlated sub-query */

/*
** An instance of the WhereScan object is used as an iterator for locating
** terms in the WHERE clause that are useful to the query planner.
*/
struct WhereScan {
  WhereClause *pOrigWC;      /* Original, innermost WhereClause */
369
370
371
372
373
374
375

376
377
378
379
380
381
382
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384







+







** above, the mapping might go like this:  4->3, 5->1, 8->2, 29->0,
** 57->5, 73->4.  Or one of 719 other combinations might be used. It
** does not really matter.  What is important is that sparse cursor
** numbers all get mapped into bit numbers that begin with 0 and contain
** no gaps.
*/
struct WhereMaskSet {
  int bVarSelect;               /* Used by sqlite3WhereExprUsage() */
  int n;                        /* Number of assigned cursor values */
  int ix[BMS];                  /* Cursor assigned to each bit */
};

/*
** Initialize a WhereMaskSet object
*/
Changes to src/wherecode.c.
1126
1127
1128
1129
1130
1131
1132
1133

1134
1135
1136
1137
1138
1139
1140
1126
1127
1128
1129
1130
1131
1132

1133
1134
1135
1136
1137
1138
1139
1140







-
+







  struct SrcList_item *pTabItem;  /* FROM clause term being coded */
  int addrBrk;                    /* Jump here to break out of the loop */
  int addrHalt;                   /* addrBrk for the outermost loop */
  int addrCont;                   /* Jump here to continue with next cycle */
  int iRowidReg = 0;        /* Rowid is stored in this register, if not zero */
  int iReleaseReg = 0;      /* Temp register to free before returning */
  Index *pIdx = 0;          /* Index used by loop (if any) */
  int loopAgain;            /* True if constraint generator loop should repeat */
  int iLoop;                /* Iteration of constraint generator loop */

  pParse = pWInfo->pParse;
  v = pParse->pVdbe;
  pWC = &pWInfo->sWC;
  db = pParse->db;
  pLevel = &pWInfo->a[iLevel];
  pLoop = pLevel->pWLoop;
2021
2022
2023
2024
2025
2026
2027
2028
2029








2030
2031


2032

2033
2034

2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051

2052
2053


2054
2055





2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070






2071
2072
2073
2074
2075
2076


2077
2078
2079
2080
2081
2082
2083
2021
2022
2023
2024
2025
2026
2027


2028
2029
2030
2031
2032
2033
2034
2035


2036
2037
2038
2039
2040

2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059


2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093


2094
2095
2096
2097
2098
2099
2100
2101
2102







-
-
+
+
+
+
+
+
+
+
-
-
+
+

+

-
+

















+
-
-
+
+


+
+
+
+
+















+
+
+
+
+
+




-
-
+
+







#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
  pLevel->addrVisit = sqlite3VdbeCurrentAddr(v);
#endif

  /* Insert code to test every subexpression that can be completely
  ** computed using the current set of tables.
  **
  ** This loop may run either once (pIdx==0) or twice (pIdx!=0). If
  ** it is run twice, then the first iteration codes those sub-expressions
  ** This loop may run between one and three times, depending on the
  ** constraints to be generated. The value of stack variable iLoop
  ** determines the constraints coded by each iteration, as follows:
  **
  ** iLoop==1: Code only expressions that are entirely covered by pIdx.
  ** iLoop==2: Code remaining expressions that do not contain correlated
  **           sub-queries.  
  ** iLoop==3: Code all remaining expressions.
  ** that can be computed using columns from pIdx only (without seeking
  ** the main table cursor). 
  **
  ** An effort is made to skip unnecessary iterations of the loop.
  */
  iLoop = (pIdx ? 1 : 2);
  do{
    loopAgain = 0;
    int iNext = 0;                /* Next value for iLoop */
    for(pTerm=pWC->a, j=pWC->nTerm; j>0; j--, pTerm++){
      Expr *pE;
      int skipLikeAddr = 0;
      testcase( pTerm->wtFlags & TERM_VIRTUAL );
      testcase( pTerm->wtFlags & TERM_CODED );
      if( pTerm->wtFlags & (TERM_VIRTUAL|TERM_CODED) ) continue;
      if( (pTerm->prereqAll & pLevel->notReady)!=0 ){
        testcase( pWInfo->untestedTerms==0
            && (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)!=0 );
        pWInfo->untestedTerms = 1;
        continue;
      }
      pE = pTerm->pExpr;
      assert( pE!=0 );
      if( pLevel->iLeftJoin && !ExprHasProperty(pE, EP_FromJoin) ){
        continue;
      }
      
      if( pIdx && !sqlite3ExprCoveredByIndex(pE, pLevel->iTabCur, pIdx) ){
        loopAgain = 1;
      if( iLoop==1 && !sqlite3ExprCoveredByIndex(pE, pLevel->iTabCur, pIdx) ){
        iNext = 2;
        continue;
      }
      if( iLoop<3 && (pTerm->wtFlags & TERM_VARSELECT) ){
        if( iNext==0 ) iNext = 3;
        continue;
      }

      if( pTerm->wtFlags & TERM_LIKECOND ){
        /* If the TERM_LIKECOND flag is set, that means that the range search
        ** is sufficient to guarantee that the LIKE operator is true, so we
        ** can skip the call to the like(A,B) function.  But this only works
        ** for strings.  So do not skip the call to the function on the pass
        ** that compares BLOBs. */
#ifdef SQLITE_LIKE_DOESNT_MATCH_BLOBS
        continue;
#else
        u32 x = pLevel->iLikeRepCntr;
        assert( x>0 );
        skipLikeAddr = sqlite3VdbeAddOp1(v, (x&1)?OP_IfNot:OP_If, (int)(x>>1));
        VdbeCoverage(v);
#endif
      }
#ifdef WHERETRACE_ENABLED /* 0xffff */
      if( sqlite3WhereTrace ){
        VdbeNoopComment((v, "WhereTerm[%d] (%p) priority=%d",
                         pWC->nTerm-j, pTerm, iLoop));
      }
#endif
      sqlite3ExprIfFalse(pParse, pE, addrCont, SQLITE_JUMPIFNULL);
      if( skipLikeAddr ) sqlite3VdbeJumpHere(v, skipLikeAddr);
      pTerm->wtFlags |= TERM_CODED;
    }
    pIdx = 0;
  }while( loopAgain );
    iLoop = iNext;
  }while( iLoop>0 );

  /* Insert code to test for implied constraints based on transitivity
  ** of the "==" operator.
  **
  ** 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
Changes to src/whereexpr.c.
947
948
949
950
951
952
953

954

955
956
957
958
959
960
961
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963







+

+







      pTerm->prereqRight = sqlite3WhereExprListUsage(pMaskSet, pExpr->x.pList);
    }
  }else if( op==TK_ISNULL ){
    pTerm->prereqRight = 0;
  }else{
    pTerm->prereqRight = sqlite3WhereExprUsage(pMaskSet, pExpr->pRight);
  }
  pMaskSet->bVarSelect = 0;
  prereqAll = sqlite3WhereExprUsage(pMaskSet, pExpr);
  if( pMaskSet->bVarSelect ) pTerm->wtFlags |= TERM_VARSELECT;
  if( ExprHasProperty(pExpr, EP_FromJoin) ){
    Bitmask x = sqlite3WhereGetMask(pMaskSet, pExpr->iRightJoinTable);
    prereqAll |= x;
    extraRight = x-1;  /* ON clause terms may not be used with an index
                       ** on left table of a LEFT JOIN.  Ticket #3015 */
    if( (prereqAll>>1)>=x ){
      sqlite3ErrorMsg(pParse, "ON clause references tables to its right");
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387






1388
1389
1390
1391
1392
1393
1394
1380
1381
1382
1383
1384
1385
1386



1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399







-
-
-
+
+
+
+
+
+







  Bitmask mask;
  if( p==0 ) return 0;
  if( p->op==TK_COLUMN ){
    return sqlite3WhereGetMask(pMaskSet, p->iTable);
  }
  mask = (p->op==TK_IF_NULL_ROW) ? sqlite3WhereGetMask(pMaskSet, p->iTable) : 0;
  assert( !ExprHasProperty(p, EP_TokenOnly) );
  if( p->pRight ) mask |= sqlite3WhereExprUsage(pMaskSet, p->pRight);
  if( p->pLeft ) mask |= sqlite3WhereExprUsage(pMaskSet, p->pLeft);
  if( ExprHasProperty(p, EP_xIsSelect) ){
  if( p->pLeft ) mask |= sqlite3WhereExprUsage(pMaskSet, p->pLeft);
  if( p->pRight ){
    mask |= sqlite3WhereExprUsage(pMaskSet, p->pRight);
    assert( p->x.pList==0 );
  }else if( ExprHasProperty(p, EP_xIsSelect) ){
    if( ExprHasProperty(p, EP_VarSelect) ) pMaskSet->bVarSelect = 1;
    mask |= exprSelectUsage(pMaskSet, p->x.pSelect);
  }else if( p->x.pList ){
    mask |= sqlite3WhereExprListUsage(pMaskSet, p->x.pList);
  }
  return mask;
}
Bitmask sqlite3WhereExprListUsage(WhereMaskSet *pMaskSet, ExprList *pList){
Changes to test/attach.test.
788
789
790
791
792
793
794
795

796
797
798
799
800
801
802
788
789
790
791
792
793
794

795
796
797
798
799
800
801
802







-
+







do_test attach-8.1 {
  set fd [open test2.db w]
  puts $fd "This file is not a valid SQLite database"
  close $fd
  catchsql {
    ATTACH 'test2.db' AS t2;
  }
} {1 {file is encrypted or is not a database}}
} {1 {file is not a database}}
do_test attach-8.2 {
  db errorcode
} {26}
forcedelete test2.db
do_test attach-8.3 {
  sqlite3 db2 test2.db
  db2 eval {CREATE TABLE t1(x); BEGIN EXCLUSIVE}
866
867
868
869
870
871
872



873














874
866
867
868
869
870
871
872
873
874
875

876
877
878
879
880
881
882
883
884
885
886
887
888
889
890







+
+
+
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+

do_execsql_test attach-11.1 {
  ATTACH printf('file:%09000x/x.db?mode=memory&cache=shared',1) AS aux1;
  CREATE TABLE aux1.t1(x,y);
  INSERT INTO aux1.t1(x,y) VALUES(1,2),(3,4);
  SELECT * FROM aux1.t1;
} {1 2 3 4}

# Ticket https://sqlite.org/src/tktview/a4e06e75a9ab61a1  2017-07-15
# False positive when running integrity_check on a connection with
# attached databases.  

#
db close
sqlite3 db :memory:
do_execsql_test attach-12.1 {
  CREATE TABLE Table1 (col TEXT NOT NULL PRIMARY KEY);
  ATTACH ':memory:' AS db2;
  CREATE TABLE db2.Table2(col1 INTEGER, col2 INTEGER, col3 INTEGER, col4);
  CREATE UNIQUE INDEX db2.idx_col1_unique ON Table2 (col1);
  CREATE UNIQUE INDEX db2.idx_col23_unique ON Table2 (col2, col3);
  CREATE INDEX db2.idx_col2 ON Table2 (col2);
  INSERT INTO Table2 VALUES(1,2,3,4);
  PRAGMA integrity_check;
} {ok}

finish_test
Changes to test/autoindex1.test.
515
516
517
518
519
520
521


















522
523
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541







+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+


# 2015-04-15:  A NULL CollSeq pointer in automatic index creation.
#
do_execsql_test autoindex1-920 {
  CREATE TABLE t920(x);
  INSERT INTO t920 VALUES(3),(4),(5);
  SELECT * FROM t920,(SELECT 0 FROM t920),(VALUES(9)) WHERE 5 IN (x);
} {5 0 9 5 0 9 5 0 9}

#-------------------------------------------------------------------------
# An IS term from the WHERE clause of a LEFT JOIN cannot be used as an
# index driver for the RHS of a LEFT JOIN. Prior to this being fixed,
# the following SELECT count(*) would incorrectly return 1.
#
do_execsql_test autoindex1-1010 {
  CREATE TABLE t11(w);
  CREATE TABLE t12(y);
  INSERT INTO t11 VALUES(NULL);
  INSERT INTO t12 VALUES('notnull');
}
do_execsql_test autoindex1-1020 {
  SELECT count(*) FROM t11 LEFT JOIN t12 WHERE t12.y IS t11.w;
} 0




finish_test
Changes to test/backup2.test.
118
119
120
121
122
123
124
125

126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147


148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163

164
165
166
167
168
169
170
118
119
120
121
122
123
124

125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145


146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162

163
164
165
166
167
168
169
170







-
+




















-
-
+
+















-
+







  catch {file attributes bu2.db -readonly 0}
  catch {file attributes bu2.db -permissions rw-------}
  set out [open bu2.db w]
  puts $out "This is not a valid database file"
  close $out
  set rc [catch {db backup temp bu2.db} res]
  lappend rc $res
} {1 {backup failed: file is encrypted or is not a database}}
} {1 {backup failed: file is not a database}}

# Try to backup database that does not exist
#
do_test backup2-8 {
  forcedelete bu1.db
  set rc [catch {db backup aux1 bu1.db} res]
  lappend rc $res
} {1 {backup failed: unknown database aux1}}

# Invalid syntax on the backup method
#
do_test backup2-9 {
  set rc [catch {db backup} res]
  lappend rc $res
} {1 {wrong # args: should be "db backup ?DATABASE? FILENAME"}}

# Try to restore from an unreadable file.
#
if {$tcl_platform(platform)=="windows"} {
  set msg {cannot open source database: unable to open database file}
} elseif {$tcl_platform(os)=="OpenBSD"} {
  set msg {restore failed: file is encrypted or is not a database}
} elseif {[string match *BSD $tcl_platform(os)]} {
  set msg {restore failed: file is not a database}
} else {
  set msg {cannot open source database: disk I/O error}
}
do_test backup2-10 {
  forcedelete bu3.db
  file mkdir bu3.db
  set rc [catch {db restore temp bu3.db} res]
  lappend rc $res
} [list 1 $msg]

# Try to restore from something that is not a database file.
#
do_test backup2-11 {
  set rc [catch {db restore temp bu2.db} res]
  lappend rc $res
} {1 {restore failed: file is encrypted or is not a database}}
} {1 {restore failed: file is not a database}}

# Try to restore a database that does not exist
#
do_test backup2-12 {
  set rc [catch {db restore aux1 bu2.db} res]
  lappend rc $res
} {1 {restore failed: unknown database aux1}}
Changes to test/bind.test.
362
363
364
365
366
367
368
369

370
371
372
373

374
375
376
377
378
379
380
381
382
383
384

385
386
387
388

389
390
391
392
393
394
395
362
363
364
365
366
367
368

369
370
371
372

373
374
375
376
377
378
379
380
381
382
383

384
385
386
387

388
389
390
391
392
393
394
395







-
+



-
+










-
+



-
+








# Test that the 'out of range' error works.
do_test bind-8.1 {
  catch { sqlite3_bind_null $VM 0 }
} {1}
do_test bind-8.2 {
  sqlite3_errmsg $DB
} {bind or column index out of range}
} {column index out of range}
ifcapable {utf16} {
  do_test bind-8.3 {
    encoding convertfrom unicode [sqlite3_errmsg16 $DB]
  } {bind or column index out of range}
  } {column index out of range}
}
do_test bind-8.4 {
  sqlite3_bind_null $VM 1 
  sqlite3_errmsg $DB
} {not an error}
do_test bind-8.5 {
  catch { sqlite3_bind_null $VM 4 }
} {1}
do_test bind-8.6 {
  sqlite3_errmsg $DB
} {bind or column index out of range}
} {column index out of range}
ifcapable {utf16} {
  do_test bind-8.7 {
    encoding convertfrom unicode [sqlite3_errmsg16 $DB]
  } {bind or column index out of range}
  } {column index out of range}
}

do_test bind-8.8 {
  catch { sqlite3_bind_blob $VM 0 "abc" 3 }
} {1}
do_test bind-8.9 {
  catch { sqlite3_bind_blob $VM 4 "abc" 3 }
Changes to test/capi3.test.
183
184
185
186
187
188
189
190

191
192
193
194

195
196
197
198
199
200
201
183
184
185
186
187
188
189

190
191
192
193

194
195
196
197
198
199
200
201







-
+



-
+







} [list $::capi3_errno SQLITE_OK]
if {[clang_sanitize_address]==0} {
  do_test capi3-3.6.1-misuse {
    sqlite3_close $db2
  } {SQLITE_MISUSE}
  do_test capi3-3.6.2-misuse {
    sqlite3_errmsg $db2
  } {library routine called out of sequence}
  } {bad parameter or other API misuse}
  ifcapable {utf16} {
    do_test capi3-3.6.3-misuse {
      utf8 [sqlite3_errmsg16 $db2]
    } {library routine called out of sequence}
    } {bad parameter or other API misuse}
  }
}

do_test capi3-3.7 {
  set db2 [sqlite3_open]
  sqlite3_errcode $db2
} {SQLITE_OK}
765
766
767
768
769
770
771
772

773
774

775
776
777
778
779
780
781
782
783
784
785
786
787
788

789
790
791
792
793


794
795
796
797
798
799
800
765
766
767
768
769
770
771

772
773

774
775
776
777
778
779
780
781
782
783

784
785
786

787

788



789
790
791
792
793
794
795
796
797







-
+

-
+









-



-
+
-

-
-
-
+
+







forcedelete test.db
forcedelete test.db-journal


# Test the english language string equivalents for sqlite error codes
set code2english [list \
SQLITE_OK         {not an error} \
SQLITE_ERROR      {SQL logic error or missing database} \
SQLITE_ERROR      {SQL logic error} \
SQLITE_PERM       {access permission denied} \
SQLITE_ABORT      {callback requested query abort} \
SQLITE_ABORT      {query aborted} \
SQLITE_BUSY       {database is locked} \
SQLITE_LOCKED     {database table is locked} \
SQLITE_NOMEM      {out of memory} \
SQLITE_READONLY   {attempt to write a readonly database} \
SQLITE_INTERRUPT  {interrupted} \
SQLITE_IOERR      {disk I/O error} \
SQLITE_CORRUPT    {database disk image is malformed} \
SQLITE_FULL       {database or disk is full} \
SQLITE_CANTOPEN   {unable to open database file} \
SQLITE_EMPTY      {table contains no data} \
SQLITE_SCHEMA     {database schema has changed} \
SQLITE_CONSTRAINT {constraint failed} \
SQLITE_MISMATCH   {datatype mismatch} \
SQLITE_MISUSE     {library routine called out of sequence} \
SQLITE_MISUSE     {bad parameter or other API misuse} \
SQLITE_NOLFS      {large file support is disabled} \
SQLITE_AUTH       {authorization denied} \
SQLITE_FORMAT     {auxiliary database format error} \
SQLITE_RANGE      {bind or column index out of range} \
SQLITE_NOTADB     {file is encrypted or is not a database} \
SQLITE_RANGE      {column index out of range} \
SQLITE_NOTADB     {file is not a database} \
unknownerror      {unknown error} \
]

set test_number 1
foreach {code english} $code2english {
  do_test capi3-9.$test_number "sqlite3_test_errstr $code" $english
  incr test_number
Changes to test/capi3c.test.
172
173
174
175
176
177
178
179

180
181
182
183

184
185
186
187
188
189
190
172
173
174
175
176
177
178

179
180
181
182

183
184
185
186
187
188
189
190







-
+



-
+







} {SQLITE_OK}
if {[clang_sanitize_address]==0} {
  do_test capi3c-3.6.1-misuse {
    sqlite3_close $db2
  } {SQLITE_MISUSE}
  do_test capi3c-3.6.2-misuse {
    sqlite3_errmsg $db2
  } {library routine called out of sequence}
  } {bad parameter or other API misuse}
  ifcapable {utf16} {
    do_test capi3c-3.6.3-misuse {
      utf8 [sqlite3_errmsg16 $db2]
    } {library routine called out of sequence}
    } {bad parameter or other API misuse}
  }
}

# rename sqlite3_open ""
# rename sqlite3_open_old sqlite3_open

ifcapable {utf16} {
722
723
724
725
726
727
728
729

730
731

732
733
734
735
736
737
738
739
740
741

742
743
744
745

746
747
748
749
750


751
752
753
754
755
756
757
722
723
724
725
726
727
728

729
730

731
732
733
734
735
736
737
738
739
740

741
742
743
744

745

746



747
748
749
750
751
752
753
754
755







-
+

-
+









-
+



-
+
-

-
-
-
+
+







forcedelete test.db
forcedelete test.db-journal


# Test the english language string equivalents for sqlite error codes
set code2english [list \
SQLITE_OK         {not an error} \
SQLITE_ERROR      {SQL logic error or missing database} \
SQLITE_ERROR      {SQL logic error} \
SQLITE_PERM       {access permission denied} \
SQLITE_ABORT      {callback requested query abort} \
SQLITE_ABORT      {query aborted} \
SQLITE_BUSY       {database is locked} \
SQLITE_LOCKED     {database table is locked} \
SQLITE_NOMEM      {out of memory} \
SQLITE_READONLY   {attempt to write a readonly database} \
SQLITE_INTERRUPT  {interrupted} \
SQLITE_IOERR      {disk I/O error} \
SQLITE_CORRUPT    {database disk image is malformed} \
SQLITE_FULL       {database or disk is full} \
SQLITE_CANTOPEN   {unable to open database file} \
SQLITE_EMPTY      {table contains no data} \
SQLITE_EMPTY      {unknown error} \
SQLITE_SCHEMA     {database schema has changed} \
SQLITE_CONSTRAINT {constraint failed} \
SQLITE_MISMATCH   {datatype mismatch} \
SQLITE_MISUSE     {library routine called out of sequence} \
SQLITE_MISUSE     {bad parameter or other API misuse} \
SQLITE_NOLFS      {large file support is disabled} \
SQLITE_AUTH       {authorization denied} \
SQLITE_FORMAT     {auxiliary database format error} \
SQLITE_RANGE      {bind or column index out of range} \
SQLITE_NOTADB     {file is encrypted or is not a database} \
SQLITE_RANGE      {column index out of range} \
SQLITE_NOTADB     {file is not a database} \
unknownerror      {unknown error} \
]

set test_number 1
foreach {code english} $code2english {
  do_test capi3c-9.$test_number "sqlite3_test_errstr $code" $english
  incr test_number
Changes to test/close.test.
69
70
71
72
73
74
75
76

77
78
79
80
81
82
69
70
71
72
73
74
75

76
77
78
79
80
81
82







-
+






  list [sqlite3_step $STMT] [sqlite3_column_text $STMT 0]
} {SQLITE_ROW two}

do_test 1.4.3 {
  list [catch {
    sqlite3_prepare $DB "SELECT * FROM sqlite_master" -1 dummy
  } msg] $msg
} {1 {(21) library routine called out of sequence}}
} {1 {(21) bad parameter or other API misuse}}

do_test 1.4.4 {
  sqlite3_finalize $STMT
} {SQLITE_OK}

finish_test
Changes to test/corrupt2.test.
55
56
57
58
59
60
61
62

63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82

83
84
85
86
87
88
89
55
56
57
58
59
60
61

62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81

82
83
84
85
86
87
88
89







-
+



















-
+







  close $f

  sqlite3 db2 corrupt.db
  catchsql "
    $::presql
    SELECT * FROM sqlite_master;
  " db2
} {1 {file is encrypted or is not a database}}
} {1 {file is not a database}}

do_test corrupt2-1.3 {
  db2 close

  # Corrupt the page-size (bytes 16 and 17 of page 1).
  forcedelete corrupt.db
  forcedelete corrupt.db-journal
  forcecopy test.db corrupt.db
  set f [open corrupt.db RDWR]
  fconfigure $f -encoding binary
  seek $f 16 start
  puts -nonewline $f "\x00\xFF"
  close $f

  sqlite3 db2 corrupt.db
  catchsql "
    $::presql
    SELECT * FROM sqlite_master;
  " db2
} {1 {file is encrypted or is not a database}}
} {1 {file is not a database}}

do_test corrupt2-1.4 {
  db2 close

  # Corrupt the free-block list on page 1.
  forcedelete corrupt.db
  forcedelete corrupt.db-journal
Changes to test/corruptA.test.
49
50
51
52
53
54
55
56

57
58
59
60
61
62
63
64

65
66
67
68
69
70
71
72

73
74
75
76
77
78
79
80

81
82
83
49
50
51
52
53
54
55

56
57
58
59
60
61
62
63

64
65
66
67
68
69
70
71

72
73
74
75
76
77
78
79

80
81
82
83







-
+







-
+







-
+







-
+



set unreadable_version 02
ifcapable wal { set unreadable_version 03 }
do_test corruptA-2.1 {
  forcecopy test.db-template test.db
  hexio_write test.db 19 $unreadable_version   ;# the read format number
  sqlite3 db test.db
  catchsql {SELECT * FROM t1}  
} {1 {file is encrypted or is not a database}}
} {1 {file is not a database}}
 
do_test corruptA-2.2 {
  db close
  forcecopy test.db-template test.db
  hexio_write test.db 21 41   ;# max embedded payload fraction
  sqlite3 db test.db
  catchsql {SELECT * FROM t1}  
} {1 {file is encrypted or is not a database}}
} {1 {file is not a database}}
 
do_test corruptA-2.3 {
  db close
  forcecopy test.db-template test.db
  hexio_write test.db 22 1f   ;# min embedded payload fraction
  sqlite3 db test.db
  catchsql {SELECT * FROM t1}  
} {1 {file is encrypted or is not a database}}
} {1 {file is not a database}}
 
do_test corruptA-2.4 {
  db close
  forcecopy test.db-template test.db
  hexio_write test.db 23 21   ;# min leaf payload fraction
  sqlite3 db test.db
  catchsql {SELECT * FROM t1}  
} {1 {file is encrypted or is not a database}}
} {1 {file is not a database}}
 

finish_test
Changes to test/e_blobwrite.test.
106
107
108
109
110
111
112
113

114
115
116
117
118
119
120
121
122
123
124
125

126
127
128

129
130
131
132
133
134
135
136
137
138
139

140
141
142
143
144
145

146
147
148
149
150
151
152
106
107
108
109
110
111
112

113
114
115
116
117
118
119
120
121
122
123
124

125
126
127

128
129
130
131
132
133
134
135
136
137
138

139
140
141
142
143
144

145
146
147
148
149
150
151
152







-
+











-
+


-
+










-
+





-
+







sqlite3_blob_close $B

# EVIDENCE-OF: R-29804-27366 If offset iOffset is less than N bytes from
# the end of the BLOB, SQLITE_ERROR is returned and no data is written.
#
sqlite3_blob_open db main t2 a 44 3 B
blob_write_error_test 2.2.1 $B 31 $blob 10   \
    SQLITE_ERROR {SQL logic error or missing database}
    SQLITE_ERROR {SQL logic error}

# Make a successful write to the blob handle. This shows that the
# sqlite3_errcode() and sqlite3_errmsg() values are set even if the
# blob_write() call succeeds (see requirement in the [blob_write_error_test]
# proc).
blob_write_error_test 2.2.1 $B 30 $blob 10 SQLITE_OK {not an error}

# EVIDENCE-OF: R-58570-38916 If N or iOffset are less than zero
# SQLITE_ERROR is returned and no data is written.
#
blob_write_error_test 2.2.2 $B 31 $blob -1   \
    SQLITE_ERROR {SQL logic error or missing database}
    SQLITE_ERROR {SQL logic error}
blob_write_error_test 2.2.3 $B 20 $blob 10 SQLITE_OK {not an error}
blob_write_error_test 2.2.4 $B -1 $blob 10   \
    SQLITE_ERROR {SQL logic error or missing database}
    SQLITE_ERROR {SQL logic error}
sqlite3_blob_close $B

# EVIDENCE-OF: R-20958-54138 An attempt to write to an expired BLOB
# handle fails with an error code of SQLITE_ABORT.
#
do_test 2.3 {
  sqlite3_blob_open db main t2 a 43 0 B
  execsql { DELETE FROM t2 WHERE b=43 }
} {}
blob_write_error_test 2.3.1 $B 5 $blob 5 \
    SQLITE_ABORT {callback requested query abort}
    SQLITE_ABORT {query aborted}
do_test 2.3.2 {
  execsql { SELECT 1, 2, 3 }
  sqlite3_errcode db
} {SQLITE_OK}
blob_write_error_test 2.3.3 $B 5 $blob 5 \
    SQLITE_ABORT {callback requested query abort}
    SQLITE_ABORT {query aborted}
sqlite3_blob_close $B

# EVIDENCE-OF: R-08382-59936 Writes to the BLOB that occurred before the
# BLOB handle expired are not rolled back by the expiration of the
# handle, though of course those changes might have been overwritten by
# the statement that expired the BLOB handle or by other independent
# statements.
169
170
171
172
173
174
175
176

177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193

194
195
196
197
198
199
200
201
202
203
169
170
171
172
173
174
175

176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192

193
194
195
196
197
198
199
200
201
202
203







-
+
















-
+










do_execsql_test 3.1.2 {
  UPDATE t3 SET k = 'xyz' WHERE i=1;
  SELECT * FROM t3 WHERE i=1;
} {
  1 .....0123456789......................... xyz
}
blob_write_error_test 3.1.3 $B 15 $blob 10 \
    SQLITE_ABORT {callback requested query abort}
    SQLITE_ABORT {query aborted}
sqlite3_blob_close $B
do_execsql_test 3.1.4 {
  SELECT * FROM t3 WHERE i=1;
} {
  1 .....0123456789......................... xyz
}

sqlite3_blob_open db main t3 j 2 1 B
blob_write_error_test 3.2.1 $B 5 $blob 10 SQLITE_OK {not an error}
do_execsql_test 3.2.2 {
  UPDATE t3 SET j = 'xyz' WHERE i=2;
  SELECT * FROM t3 WHERE i=2;
} {
  2 xyz ........................................
}
blob_write_error_test 3.2.3 $B 15 $blob 10 \
    SQLITE_ABORT {callback requested query abort}
    SQLITE_ABORT {query aborted}
sqlite3_blob_close $B
do_execsql_test 3.2.4 {
  SELECT * FROM t3 WHERE i=2;
} {
  2 xyz ........................................
}



finish_test
Changes to test/e_expr.test.
250
251
252
253
254
255
256
257
258


259
260
261
262
263

264
265
266
267
268
269
270
250
251
252
253
254
255
256


257
258
259
260
261
262
263
264
265
266
267
268
269
270
271







-
-
+
+





+







  
  do_execsql_test e_expr-5.$tn "SELECT $a || $b" [list "${as}${bs}"]
}

#-------------------------------------------------------------------------
# Test the % operator.
#
# EVIDENCE-OF: R-08914-63790 The operator % outputs the value of its
# left operand modulo its right operand.
# EVIDENCE-OF: R-04223-04352 The operator % outputs the integer value of
# its left operand modulo its right operand.
#
do_execsql_test e_expr-6.1 {SELECT  72%5}  {2}
do_execsql_test e_expr-6.2 {SELECT  72%-5} {2}
do_execsql_test e_expr-6.3 {SELECT -72%-5} {-2}
do_execsql_test e_expr-6.4 {SELECT -72%5}  {-2}
do_execsql_test e_expr-6.5 {SELECT 72.35%5} {2.0}

#-------------------------------------------------------------------------
# Test that the results of all binary operators are either numeric or 
# NULL, except for the || operator, which may evaluate to either a text
# value or NULL.
#
# EVIDENCE-OF: R-20665-17792 The result of any binary operator is either
Changes to test/e_fkey.test.
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740









741
742
743
744
745
746
747
725
726
727
728
729
730
731









732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747







-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+







# application from preparing SQL statements that modify the content of
# the child or parent tables in ways that use the foreign keys.
#
# EVIDENCE-OF: R-03108-63659 The English language error message for
# foreign key DML errors is usually "foreign key mismatch" but can also
# be "no such table" if the parent table does not exist.
#
# EVIDENCE-OF: R-60781-26576 Foreign key DML errors are may be reported
# if: The parent table does not exist, or The parent key columns named
# in the foreign key constraint do not exist, or The parent key columns
# named in the foreign key constraint are not the primary key of the
# parent table and are not subject to a unique constraint using
# collating sequence specified in the CREATE TABLE, or The child table
# references the primary key of the parent without specifying the
# primary key columns and the number of primary key columns in the
# parent do not match the number of child key columns.
# EVIDENCE-OF: R-35763-48267 Foreign key DML errors are reported if: The
# parent table does not exist, or The parent key columns named in the
# foreign key constraint do not exist, or The parent key columns named
# in the foreign key constraint are not the primary key of the parent
# table and are not subject to a unique constraint using collating
# sequence specified in the CREATE TABLE, or The child table references
# the primary key of the parent without specifying the primary key
# columns and the number of primary key columns in the parent do not
# match the number of child key columns.
#
do_test e_fkey-20.1 {
  execsql {
    CREATE TABLE c1(c REFERENCES nosuchtable, d);

    CREATE TABLE p2(a, b, UNIQUE(a, b));
    CREATE TABLE c2(c, d, FOREIGN KEY(c, d) REFERENCES p2(a, x));
Changes to test/e_fts3.test.
173
174
175
176
177
178
179
180

181
182
183
184
185
186
187
173
174
175
176
177
178
179

180
181
182
183
184
185
186
187







-
+







} {53 {Home Page} {SQLite is a software...} 54 {Download SQLite} {All SQLite source code...}}

write_test 1.2.1.8 pages_content { DELETE FROM pages }
read_test  1.2.1.9 { SELECT docid, * FROM pages } {}

do_error_test fts3-1.2.1.10 {
  INSERT INTO pages(rowid, docid, title, body) VALUES(1, 2, 'A title', 'A document body');
} {SQL logic error or missing database}
} {SQL logic error}

# Test the optimize() function example:
ddl_test   1.2.2.1 { CREATE VIRTUAL TABLE docs USING fts3 }
write_test 1.2.2.2 docs_content {
  INSERT INTO docs VALUES('Others translate the first clause as');
}
write_test 1.2.2.3 docs_content {
Changes to test/e_insert.test.
344
345
346
347
348
349
350
351
352
353




354
355
356
357
358
359
360
344
345
346
347
348
349
350



351
352
353
354
355
356
357
358
359
360
361







-
-
-
+
+
+
+







    5.1    "INSERT INTO a1 DEFAULT VALUES"     {}
    5.2    "SELECT * FROM a1"                  {{} {}}

    6.1    "INSERT INTO a1 DEFAULT VALUES"     {}
    6.2    "SELECT * FROM a1"                  {{} {} {} {}}
}

# EVIDENCE-OF: R-03235-45250 The "REPLACE" and "INSERT OR action" forms
# specify an alternative constraint conflict resolution algorithm to use
# during this one INSERT command.
# EVIDENCE-OF: R-00267-47727 The initial "INSERT" keyword can be
# replaced by "REPLACE" or "INSERT OR action" to specify an alternative
# constraint conflict resolution algorithm to use during that one INSERT
# command.
#
# EVIDENCE-OF: R-23110-47146 the parser allows the use of the single
# keyword REPLACE as an alias for "INSERT OR REPLACE".
#
#    The two requirements above are tested by e_select-4.1.* and
#    e_select-4.2.*, respectively.
#
Changes to test/e_walhook.test.
117
118
119
120
121
122
123
124

125
126
127
128
129
130
131
117
118
119
120
121
122
123

124
125
126
127
128
129
130
131







-
+







# will propagate back up through the SQLite code base to cause the
# statement that provoked the callback to report an error, though the
# commit will have still occurred.
#
proc my_wal_hook {args} { return 1 ;# SQLITE_ERROR }
do_catchsql_test 4.1 {
  INSERT INTO t1 VALUES(7)
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}

proc my_wal_hook {args} { return 5 ;# SQLITE_BUSY }
do_catchsql_test 4.2 {
  INSERT INTO t1 VALUES(8)
} {1 {database is locked}}

proc my_wal_hook {args} { return 14 ;# SQLITE_CANTOPEN }
Changes to test/errmsg.test.
52
53
54
55
56
57
58
59

60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80

81
82
83
84
85
86
87
52
53
54
55
56
57
58

59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79

80
81
82
83
84
85
86
87







-
+




















-
+








#-------------------------------------------------------------------------
# Test error messages returned by user-defined SQL functions.
#
do_test 1.1 {
  error_messages "SELECT sql_error('custom message')"
} [list {*}{
    SQLITE_ERROR {SQL logic error or missing database} 
    SQLITE_ERROR {SQL logic error} 
    SQLITE_ERROR {custom message}
}]
do_test 1.2 {
  error_messages_v2 "SELECT sql_error('custom message')"
} [list {*}{
    SQLITE_ERROR {custom message}
    SQLITE_ERROR {custom message}
}]

#-------------------------------------------------------------------------
# Test error messages generated directly by VDBE code (e.g. constraint
# failures).
#
do_execsql_test 2.1 {
  CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
  INSERT INTO t1 VALUES('abc', 'def');
}
do_test 2.2 {
  error_messages "INSERT INTO t1 VALUES('ghi', 'def')"
} [list {*}{
    SQLITE_ERROR      {SQL logic error or missing database} 
    SQLITE_ERROR      {SQL logic error} 
    SQLITE_CONSTRAINT {UNIQUE constraint failed: t1.b}
}]
verify_ex_errcode 2.2b SQLITE_CONSTRAINT_UNIQUE
do_test 2.3 {
  error_messages_v2 "INSERT INTO t1 VALUES('ghi', 'def')"
} [list {*}{
    SQLITE_CONSTRAINT {UNIQUE constraint failed: t1.b}
97
98
99
100
101
102
103
104

105
106
107
108
109
110
111
97
98
99
100
101
102
103

104
105
106
107
108
109
110
111







-
+







do_execsql_test 3.1.1 {
  CREATE TABLE t2(a PRIMARY KEY, b UNIQUE);
  INSERT INTO t2 VALUES('abc', 'def');
}
do_test 3.1.2 {
  error_messages "SELECT a FROM t2" "DROP TABLE t2"
} [list {*}{
    SQLITE_ERROR {SQL logic error or missing database} 
    SQLITE_ERROR {SQL logic error} 
    SQLITE_SCHEMA {database schema has changed}
}]
do_execsql_test 3.2.1 {
  CREATE TABLE t2(a PRIMARY KEY, b UNIQUE);
  INSERT INTO t2 VALUES('abc', 'def');
}
do_test 3.2.2 {
Changes to test/filefmt.test.
41
42
43
44
45
46
47
48

49
50
51
52
53
54
55
41
42
43
44
45
46
47

48
49
50
51
52
53
54
55







-
+







  set x [catch {sqlite3 db test.db} err]
  lappend x $err
} {0 {}}
do_test filefmt-1.3 {
  catchsql {
    SELECT count(*) FROM sqlite_master
  }
} {1 {file is encrypted or is not a database}}
} {1 {file is not a database}}
do_test filefmt-1.4 {
  db close
  hexio_write test.db 0 53
  sqlite3 db test.db
  catchsql {
    SELECT count(*) FROM sqlite_master
  }
81
82
83
84
85
86
87
88

89
90
91
92
93
94
95
96
97
98
99
100

101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117

118
119
120
121
122
123
124
81
82
83
84
85
86
87

88
89
90
91
92
93
94
95
96
97
98
99

100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116

117
118
119
120
121
122
123
124







-
+











-
+
















-
+







do_test filefmt-1.6 {
  db close
  hexio_write test.db 16 [hexio_render_int16 1025]
  sqlite3 db test.db
  catchsql {
     SELECT count(*) FROM sqlite_master
  }
} {1 {file is encrypted or is not a database}}
} {1 {file is not a database}}


# The page-size must be at least 512 bytes
#
do_test filefmt-1.7 {
  db close
  hexio_write test.db 16 [hexio_render_int16 256]
  sqlite3 db test.db
  catchsql {
     SELECT count(*) FROM sqlite_master
  }
} {1 {file is encrypted or is not a database}}
} {1 {file is not a database}}

# Usable space per page (page-size minus unused space per page)
# must be at least 480 bytes
#
ifcapable pager_pragmas {
  do_test filefmt-1.8 {
    db close
    forcedelete test.db
    sqlite3 db test.db
    db eval {PRAGMA page_size=512; CREATE TABLE t1(x)}
    db close
    hexio_write test.db 20 21
    sqlite3 db test.db
    catchsql {
       SELECT count(*) FROM sqlite_master
    }
  } {1 {file is encrypted or is not a database}}
  } {1 {file is not a database}}
}

#-------------------------------------------------------------------------
# The following block of tests - filefmt-2.* - test that versions 3.7.0
# and later can read and write databases that have been modified or created
# by 3.6.23.1 and earlier. The difference difference is that 3.7.0 stores
# the size of the database in the database file header, whereas 3.6.23.1
Changes to test/fts1o.test.
48
49
50
51
52
53
54
55

56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75

76
77
78
79
80
81
82
48
49
50
51
52
53
54

55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74

75
76
77
78
79
80
81
82







-
+



















-
+







# See what happens when renaming the fts1 table fails.
#
do_test fts1o-2.1 {
  catchsql {
    CREATE TABLE t1_term(a, b, c);
    ALTER TABLE fts_t1 RENAME to t1;
  }
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_test fts1o-2.2 {
  execsql { SELECT rowid, snippet(fts_t1) FROM fts_t1 WHERE a MATCH 'four'; }
} {1 {one three <b>four</b>}}
do_test fts1o-2.3 {
  execsql { SELECT tbl_name FROM sqlite_master WHERE type = 'table'}
} {fts_t1 fts_t1_content fts_t1_term t1_term}

# See what happens when renaming the fts1 table fails inside a transaction.
#
do_test fts1o-3.1 {
  execsql {
    BEGIN;
    INSERT INTO fts_t1(a, b, c) VALUES('one two three', 'one four', 'one two');
  }
} {}
do_test fts1o-3.2 {
  catchsql {
    ALTER TABLE fts_t1 RENAME to t1;
  }
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
# NOTE(shess) rowid AS rowid to defeat caching.  Otherwise, this
# seg-faults, I suspect that there's something up with a stale
# virtual-table reference, but I'm not quite sure how it happens here
# but not for fts2o.test.
do_test fts1o-3.3 {
  execsql { SELECT rowid AS rowid, snippet(fts_t1) FROM fts_t1 WHERE a MATCH 'four'; }
} {1 {one three <b>four</b>}}
Changes to test/fts2g.test.
69
70
71
72
73
74
75
76

77
78
79
80
81
82
83
69
70
71
72
73
74
75

76
77
78
79
80
81
82
83







-
+







do_test fts2g-1.9 {
  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'this something'}
} {}

# No support for all-except queries.
do_test fts2g-1.10 {
  catchsql {SELECT rowid FROM t1 WHERE t1 MATCH '-this -something'}
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}

# Test that docListOrMerge() correctly handles reaching the end of one
# doclist before it reaches the end of the other.
do_test fts2g-1.11 {
  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'this OR also'}
} {1 2}
do_test fts2g-1.12 {
Changes to test/fts2o.test.
65
66
67
68
69
70
71
72

73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92

93
94
95
96
97
98
99
65
66
67
68
69
70
71

72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91

92
93
94
95
96
97
98
99







-
+



















-
+







# See what happens when renaming the fts2 table fails.
#
do_test fts2o-2.5 {
  catchsql {
    CREATE TABLE t1_segdir(a, b, c);
    ALTER TABLE fts_t1 RENAME to t1;
  }
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_test fts2o-2.6 {
  execsql { SELECT rowid, snippet(fts_t1) FROM fts_t1 WHERE a MATCH 'four'; }
} {1 {one three <b>four</b>}}
do_test fts2o-2.7 {
  execsql { SELECT tbl_name FROM sqlite_master WHERE type = 'table'}
} {fts_t1 fts_t1_content fts_t1_segments fts_t1_segdir t1_segdir}

# See what happens when renaming the fts2 table fails inside a transaction.
#
do_test fts2o-2.8 {
  execsql {
    BEGIN;
    INSERT INTO fts_t1(a, b, c) VALUES('one two three', 'one four', 'one two');
  }
} {}
do_test fts2o-2.9 {
  catchsql {
    ALTER TABLE fts_t1 RENAME to t1;
  }
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_test fts2o-2.10 {
  execsql { SELECT rowid, snippet(fts_t1) FROM fts_t1 WHERE a MATCH 'four'; }
} {1 {one three <b>four</b>}}
do_test fts2o-2.11 {
  execsql { SELECT tbl_name FROM sqlite_master WHERE type = 'table'}
} {fts_t1 fts_t1_content fts_t1_segments fts_t1_segdir t1_segdir}
do_test fts2o-2.12 {
Changes to test/fts3ao.test.
67
68
69
70
71
72
73
74

75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94

95
96
97
98
99
100
101
67
68
69
70
71
72
73

74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93

94
95
96
97
98
99
100
101







-
+



















-
+







# See what happens when renaming the fts3 table fails.
#
do_test fts3ao-2.5 {
  catchsql {
    CREATE TABLE t1_segdir(a, b, c);
    ALTER TABLE fts_t1 RENAME to t1;
  }
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_test fts3ao-2.6 {
  execsql { SELECT rowid, snippet(fts_t1) FROM fts_t1 WHERE a MATCH 'four'; }
} {1 {one three <b>four</b>}}
do_test fts3ao-2.7 {
  execsql { SELECT tbl_name FROM sqlite_master WHERE type = 'table'}
} {fts_t1 fts_t1_content fts_t1_segments fts_t1_segdir t1_segdir}

# See what happens when renaming the fts3 table fails inside a transaction.
#
do_test fts3ao-2.8 {
  execsql {
    BEGIN;
    INSERT INTO fts_t1(a, b, c) VALUES('one two three', 'one four', 'one two');
  }
} {}
do_test fts3ao-2.9 {
  catchsql {
    ALTER TABLE fts_t1 RENAME to t1;
  }
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_test fts3ao-2.10 {
  execsql { SELECT rowid, snippet(fts_t1) FROM fts_t1 WHERE a MATCH 'four'; }
} {1 {one three <b>four</b>}}
do_test fts3ao-2.11 {
  execsql { SELECT tbl_name FROM sqlite_master WHERE type = 'table'}
} {fts_t1 fts_t1_content fts_t1_segments fts_t1_segdir t1_segdir}
do_test fts3ao-2.12 {
Changes to test/fts3aux1.test.
360
361
362
363
364
365
366
367

368
369
370

371
372
373
374
375
376
377
360
361
362
363
364
365
366

367
368
369

370
371
372
373
374
375
376
377







-
+


-
+







} {1 {invalid arguments to fts4aux constructor}}

do_execsql_test 3.2.1 {
  CREATE VIRTUAL TABLE terms3 USING fts4aux(does_not_exist)
}
do_catchsql_test 3.2.2 {
  SELECT * FROM terms3
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_catchsql_test 3.2.3 {
  SELECT * FROM terms3 WHERE term = 'abc'
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}

do_catchsql_test 3.3.1 {
  INSERT INTO terms VALUES(1,2,3);
} {1 {table terms may not be modified}}
do_catchsql_test 3.3.2 {
  DELETE FROM terms
} {1 {table terms may not be modified}}
512
513
514
515
516
517
518
519

520
521
512
513
514
515
516
517
518

519
520
521







-
+


do_test 8.1 {
  catchsql { CREATE VIRTUAL TABLE att.aux3 USING fts4aux(main, ft1) }
} {1 {invalid arguments to fts4aux constructor}}

do_test 8.2 {
  execsql {DETACH att}
  catchsql { SELECT * FROM aux2 }
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}

finish_test
Changes to test/fts3b.test.
202
203
204
205
206
207
208
209

210
211
212
213
214
215
216
202
203
204
205
206
207
208

209
210
211
212
213
214
215
216







-
+








# If an insert tries to set both docid and rowid, require an error.
do_test fts3b-4.8 {
  catchsql {
    INSERT INTO t4 (rowid, docid, c) VALUES (14, 15, 'bad test');
    SELECT * FROM t4 WHERE docid = 14;
  }
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}

do_test fts3b-4.9 {
  execsql { SELECT docid FROM t4 WHERE t4 MATCH 'testing' }
} {12}
do_test fts3b-4.10 {
  execsql { 
    UPDATE t4 SET docid = 14 WHERE docid = 12;
Changes to test/fts3cov.test.
92
93
94
95
96
97
98
99

100
101
102
103
104
105
106
107

108
109
110
111
112
113
114
92
93
94
95
96
97
98

99
100
101
102
103
104
105
106

107
108
109
110
111
112
113
114







-
+







-
+







do_test fts3cov-2.2 {
  set root [db one {SELECT root FROM t1_segdir}]
  read_fts3varint [string range $root 1 end] left_child
  execsql { DELETE FROM t1_segments WHERE blockid = $left_child }
} {}
do_error_test fts3cov-2.3 {
  SELECT * FROM t1 WHERE t1 MATCH 'c*'
} {SQL logic error or missing database}
} {SQL logic error}

# Test the "replaced with NULL" case:
do_test fts3cov-2.4 {
  execsql { INSERT INTO t1_segments VALUES($left_child, NULL) }
} {}
do_error_test fts3cov-2.5 {
  SELECT * FROM t1 WHERE t1 MATCH 'cloud'
} {SQL logic error or missing database}
} {SQL logic error}

#--------------------------------------------------------------------------
# The following tests are to test the effects of OOM errors while storing
# terms in the pending-hash table. Specifically, while creating doclist
# blobs to store in the table. More specifically, to test OOM errors while
# appending column numbers to doclists. For example, if a doclist consists
# of:
304
305
306
307
308
309
310
311

312
313
314

315
316
317

318
319
320
321
322
323
324
304
305
306
307
308
309
310

311
312
313

314
315
316

317
318
319
320
321
322
323
324







-
+


-
+


-
+







#
set DO_MALLOC_TEST 0
do_test fts3cov-9.1 {
  execsql { CREATE VIRTUAL TABLE xx USING fts3 }
} {}
do_error_test fts3cov-9.2 {
  INSERT INTO xx(xx) VALUES('optimise');   -- British spelling
} {SQL logic error or missing database}
} {SQL logic error}
do_error_test fts3cov-9.3 {
  INSERT INTO xx(xx) VALUES('short');
} {SQL logic error or missing database}
} {SQL logic error}
do_error_test fts3cov-9.4 {
  INSERT INTO xx(xx) VALUES('waytoolongtobecorrect');
} {SQL logic error or missing database}
} {SQL logic error}
do_test fts3cov-9.5 {
  execsql { INSERT INTO xx(xx) VALUES('optimize') }
} {}

#-------------------------------------------------------------------------
# Test that a table can be optimized in the middle of a transaction when
# the pending-terms table is non-empty. This case involves some extra
Changes to test/fts3fault.test.
141
142
143
144
145
146
147
148

149
150
151
152
153
154
155
156
157

158
159
160
161
162
163
164
141
142
143
144
145
146
147

148
149
150
151
152
153
154
155
156

157
158
159
160
161
162
163
164







-
+








-
+







do_faultsim_test 7.2 -prep { 
  faultsim_delete_and_reopen
} -body {
  execsql { CREATE VIRTUAL TABLE t1 USING fts4(a, b, matchinfo=fs3) }
} -test {
  faultsim_test_result {1 {unrecognized matchinfo: fs3}} \
                       {1 {vtable constructor failed: t1}} \
                       {1 {SQL logic error or missing database}}
                       {1 {SQL logic error}}
}
do_faultsim_test 7.3 -prep { 
  faultsim_delete_and_reopen
} -body {
  execsql { CREATE VIRTUAL TABLE t1 USING fts4(a, b, matchnfo=fts3) }
} -test {
  faultsim_test_result {1 {unrecognized parameter: matchnfo=fts3}} \
                       {1 {vtable constructor failed: t1}} \
                       {1 {SQL logic error or missing database}}
                       {1 {SQL logic error}}
}


proc mit {blob} {
  set scan(littleEndian) i*
  set scan(bigEndian) I*
  binary scan $blob $scan($::tcl_platform(byteOrder)) r
Changes to test/fts3fault2.test.
241
242
243
244
245
246
247
248
249
241
242
243
244
245
246
247









-
-
  faultsim_test_result {0 50}
}

eval fts3_configure_incr_load $chunkconfig


finish_test


Changes to test/fts3join.test.
76
77
78
79
80
81
82




















83
84
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104







+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+


  ) ON tt.a = rrr
} {1 1 abc 2 {} {}}

do_execsql_test 3.2 {
  SELECT * FROM tt LEFT JOIN vt ON (vt MATCH 'abc')
} {1 abc 2 abc}

#-------------------------------------------------------------------------
# Test that queries of the form found in test case 4.2 use an automatic
# index to avoid running multiple fts queries.
#
do_execsql_test 4.1 {
  CREATE VIRTUAL TABLE ft4 USING fts3(x);
  CREATE TABLE t4(y, z);
  CREATE INDEX t4y ON t1(y);
}

do_eqp_test 4.2 {
  SELECT * FROM t4 LEFT JOIN (
      SELECT docid, * FROM ft4 WHERE ft4 MATCH ?
  ) AS rr ON t4.rowid=rr.docid 
  WHERE t4.y = ?;
} {
  1 0 0 {SCAN TABLE ft4 VIRTUAL TABLE INDEX 3:} 
  0 0 0 {SCAN TABLE t4}
  0 1 1 {SEARCH SUBQUERY 1 AS rr USING AUTOMATIC COVERING INDEX (docid=?)}
}

finish_test
Changes to test/fts3misc.test.
217
218
219
220
221
222
223
224
225
226
227
228
229
230
217
218
219
220
221
222
223

224
225
226
227
228
229







-






  INSERT INTO t6 VALUES('x x x x x x x x x x x A');
  INSERT INTO t6 VALUES('x x x x x x x x x x x B');

  WITH s(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<50000)
    INSERT INTO t6 SELECT 'x x x x x x x x x x x' FROM s;
  COMMIT;
}
breakpoint
do_execsql_test 6.1 {
  SELECT rowid FROM t6 WHERE t6 MATCH 'b OR "x a"'
} {50001 50002 50003 50004}


finish_test
Changes to test/fts3tok1.test.
104
105
106
107
108
109
110
111

112
113
114
115
116
117
118
104
105
106
107
108
109
110

111
112
113
114
115
116
117
118







-
+







do_catchsql_test 2.0 {
  CREATE VIRTUAL TABLE tX USING fts3tokenize(nosuchtokenizer);
} {1 {unknown tokenizer: nosuchtokenizer}}

do_catchsql_test 2.1 {
  CREATE VIRTUAL TABLE t4 USING fts3tokenize;
  SELECT * FROM t4;
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}

do_catchsql_test 2.2 {
  CREATE VIRTUAL TABLE t USING fts4(tokenize=simple""); 
} {0 {}}

ifcapable fts3_unicode {
  do_catchsql_test 2.3 {
Changes to test/fts4content.test.
420
421
422
423
424
425
426
427

428
429
430
431
432
433
434
420
421
422
423
424
425
426

427
428
429
430
431
432
433
434







-
+







} {
  {A B} {B A} {C D} {A A}
}

do_catchsql_test 6.2.2 {
  DROP TABLE t7;
  SELECT * FROM ft7;
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}

db close
sqlite3 db test.db
do_execsql_test 6.2.3 {
  SELECT name FROM sqlite_master WHERE name LIKE '%t7%'
} {
  ft7 ft7_segments ft7_segdir sqlite_autoindex_ft7_segdir_1 
453
454
455
456
457
458
459
460

461
462
463

464
465
466
467
468
469
470
453
454
455
456
457
458
459

460
461
462

463
464
465
466
467
468
469
470







-
+


-
+








do_execsql_test 6.2.7 {
  DROP TABLE t7;
  CREATE TABLE t7(x);
}
do_catchsql_test 6.2.8 {
  SELECT * FROM ft7 WHERE ft7 MATCH '"A A"';
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_catchsql_test 6.2.9 {
  SELECT * FROM ft7 WHERE ft7 MATCH '"A A"';
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}

db close
sqlite3 db test.db
do_catchsql_test 6.2.10 {
  SELECT rowid FROM ft7 WHERE ft7 MATCH '"A A"';
} {0 2}
do_catchsql_test 6.2.11 {
500
501
502
503
504
505
506
507

508
509
510
511
512
513
514
500
501
502
503
504
505
506

507
508
509
510
511
512
513
514







-
+







} {13 15}
do_execsql_test 7.2.3 {
  SELECT name FROM sqlite_master WHERE name LIKE 'ft9_%';
} {ft9_segments ft9_segdir ft9_docsize ft9_stat}

do_catchsql_test 7.2.4 {
  SELECT * FROM ft9 WHERE ft9 MATCH 'N';
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}

#-------------------------------------------------------------------------
# Test cases 8.*
# 
do_execsql_test 8.1 {
  CREATE TABLE t10(a, b);
  INSERT INTO t10 VALUES(
Changes to test/fts4langid.test.
383
384
385
386
387
388
389
390

391
392
393
394
395
396
397
383
384
385
386
387
388
389

390
391
392
393
394
395
396
397







-
+







for {set i 0} {$i < 50} {incr i} {
  do_execsql_test 4.1.4.$i {
    SELECT count(*) FROM t4 WHERE t4 MATCH 'fox' AND lid=$i;
  } [expr 0==($i%2)]
}
do_catchsql_test 4.1.5 {
  INSERT INTO t4(content, lid) VALUES('hello world', 101)
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}

#-------------------------------------------------------------------------
# Test cases 5.*
#
# The following test cases are designed to detect a 32-bit overflow bug
# that existed at one point.
#
Changes to test/fts4lastrowid.test.
66
67
68
69
70
71
72
73
66
67
68
69
70
71
72








-
do_execsql_test 1.6 {
  INSERT INTO t1(rowid, str) SELECT rowid+10, x FROM x1;
  SELECT last_insert_rowid();
} {14}


finish_test

Changes to test/fts4merge.test.
85
86
87
88
89
90
91
92

93
94
95
96
97
98
99
85
86
87
88
89
90
91

92
93
94
95
96
97
98
99







-
+







    4   {merge=5,}
    5   {merge=6,%}
    6   {merge=6,six}
    7   {merge=6,1}
  } {
    do_catchsql_test 2.$tn { 
      INSERT INTO t2(t2) VALUES($arg);
    } {1 {SQL logic error or missing database}}
    } {1 {SQL logic error}}
  }
  
  #-------------------------------------------------------------------------
  # Test cases 3.*
  #
  do_test 3.0 { 
    reset_db
Changes to test/fuzz3.test.
148
149
150
151
152
153
154
155

156
157
158
159
160
161
162
148
149
150
151
152
153
154

155
156
157
158
159
160
161
162







-
+







    {PRAGMA integrity_check}           
  } {
    do_test fuzz3-$ii.$iNew.[incr iTest] {
      foreach {rc msg} [catchsql $sql] {}
      if {$rc == 0 
       || $msg eq "database or disk is full"
       || $msg eq "database disk image is malformed"
       || $msg eq "file is encrypted or is not a database"
       || $msg eq "file is not a database"
       || [string match "malformed database schema*" $msg]
      } {
        set msg ok
      }
      set msg
    } {ok}
  }
Changes to test/having.test.
147
148
149
150
151
152
153
154
147
148
149
150
151
152
153








-
set ::nondeter_ret 0
do_execsql_test 4.3 {
  SELECT a, sum(b) FROM t3 WHERE nondeter(a) GROUP BY a
} {1 4 2 2}


finish_test

Changes to test/in.test.
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
625
626
627
628
629
630
631

632
633
634
635
636
637
638







-







do_test in-13.14 {
  execsql {
    CREATE INDEX i5 ON b(id);
    SELECT * FROM a WHERE id NOT IN (SELECT id FROM b);
  }
} {}

breakpoint
do_test in-13.15 {
  catchsql {
    SELECT 0 WHERE (SELECT 0,0) OR (0 IN (1,2));
  }
} {1 {sub-select returns 2 columns - expected 1}}


Changes to test/incrvacuum.test.
732
733
734
735
736
737
738
739

740
741
742
743
744
745
746
732
733
734
735
736
737
738

739
740
741
742
743
744
745
746







-
+







    set out [open invalid.db w]
    puts $out "This is not an SQLite database file"
    close $out
    sqlite3 db3 invalid.db
    catchsql {
      PRAGMA incremental_vacuum(10);
    } db3
  } {1 {file is encrypted or is not a database}}
  } {1 {file is not a database}}
  db3 close
}

do_test incrvacuum-15.1 {
  db close
  db2 close
  forcedelete test.db
Changes to test/indexexpr2.test.
37
38
39
40
41
42
43
44
37
38
39
40
41
42
43








-
}

do_execsql_test 2.1 {
  SELECT a+1, quote(a+1) FROM t1 ORDER BY 1;
} {2 2 3 3 4 4}

finish_test

Changes to test/like.test.
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226

















227
228
229
230
231
232
233
209
210
211
212
213
214
215











216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239







-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+







} {abc abcd nosort {} i1}
do_test like-3.3.101 {
  set sqlite_like_count
} 0

# The like optimization works even when the pattern is a bound parameter
#
do_test like-3.3.102 {
  set sqlite_like_count 0
  unset -nocomplain ::likepat
  set ::likepat abc%
  queryplan {
    SELECT x FROM t1 WHERE x LIKE $::likepat ORDER BY 1;
  }
} {abc abcd nosort {} i1}
do_test like-3.3.103 {
  set sqlite_like_count
} 0
# Exception: It does not work if sqlite3_prepare() is used instead of
# sqlite3_prepare_v2(), as in that case the statement cannot be reprepared
# after the parameter is bound.
#
unset -nocomplain ::likepat
set ::likepat abc%
if {[permutation]!="prepare"} {
  do_test like-3.3.102 {
    set sqlite_like_count 0
    queryplan {
      SELECT x FROM t1 WHERE x LIKE $::likepat ORDER BY 1;
    }
  } {abc abcd nosort {} i1}
  do_test like-3.3.103 {
    set sqlite_like_count
  } 0
}

# Except, the like optimization does not work for bound parameters if
# the query planner stability guarantee is active.
#
do_test like-3.3.104 {
  set sqlite_like_count 0
  sqlite3_db_config db QPSG 1
Changes to test/malloc5.test.
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
116
117
118
119
120
121
122

123
124
125
126
127
128
129







-







  # a journal-sync to free, the other does not.
  db2 close
  execsql {
    BEGIN;
    CREATE TABLE def(d, e, f);
    SELECT * FROM abc;
  }
  breakpoint
  value_in_range $::pgalloc $::mrange [sqlite3_release_memory 500]
} [value_in_range $::pgalloc $::mrange]
do_test malloc5-1.7 {
  # Database should not be locked this time. 
  sqlite3 db2 test.db
  catchsql { SELECT * FROM abc } db2
} {0 {}}
Changes to test/misc5.test.
518
519
520
521
522
523
524
525

526
527
528
529
530
531
532
518
519
520
521
522
523
524

525
526
527
528
529
530
531
532







-
+







    set fd [open test.db w]
    puts $fd "This is not really a database"
    close $fd
    sqlite3 db test.db
    catchsql {
      CREATE TABLE t1(a,b,c);
    }
  } {1 {file is encrypted or is not a database}}
  } {1 {file is not a database}}
}

# Ticket #1371.  Allow floating point numbers of the form .N  or N.
#
do_test misc5-5.1 {
  execsql {SELECT .1 }
} 0.1
Changes to test/misuse.test.
175
176
177
178
179
180
181
182

183
184
185
186
187

188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207

208
209
210
175
176
177
178
179
180
181

182
183
184
185
186

187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206

207
208
209
210







-
+




-
+



















-
+



if {[clang_sanitize_address]==0} {
  do_test misuse-4.4 {
  # Flush the TCL statement cache here, otherwise the sqlite3_close() will
  # fail because there are still un-finalized() VDBEs.
    db cache flush
      sqlite3_close $::DB
      catchsql2 {SELECT * FROM t1}
  } {1 {library routine called out of sequence}}
  } {1 {bad parameter or other API misuse}}
  do_test misuse-4.5 {
    catchsql {
      SELECT * FROM t1
    }
  } {1 {library routine called out of sequence}}
  } {1 {bad parameter or other API misuse}}

  # Attempt to use a database after it has been closed.
  #
  do_test misuse-5.1 {
    db close
      sqlite3 db test2.db; set ::DB [sqlite3_connection_pointer db]
      execsql {
        SELECT * FROM t1
      }
  } {1 2}
  do_test misuse-5.2 {
    catchsql2 {SELECT * FROM t1}
  } {0 {a b 1 2}}
  do_test misuse-5.3 {
    db close
      set r [catch {
        sqlite3_prepare $::DB {SELECT * FROM t1} -1 TAIL
      } msg]
    lappend r $msg
  } {1 {(21) library routine called out of sequence}}
  } {1 {(21) bad parameter or other API misuse}}
}

finish_test
Changes to test/pager1.test.
2714
2715
2716
2717
2718
2719
2720
2721

2722
2723
2724
2725
2726
2727
2728
2714
2715
2716
2717
2718
2719
2720

2721
2722
2723
2724
2725
2726
2727
2728







-
+







  catch { db close }
  forcedelete test.db
  set fd [open test.db w]
  puts $fd "hello world"
  close $fd
  sqlite3 db test.db
  catchsql { CREATE TABLE t1(x) }
} {1 {file is encrypted or is not a database}}
} {1 {file is not a database}}
do_test 38.2 {
  catch { db close }
  forcedelete test.db
} {}

do_test 39.1 {
  sqlite3 db test.db
Changes to test/pagerfault.test.
672
673
674
675
676
677
678
679

680
681
682
683
684
685
686
672
673
674
675
676
677
678

679
680
681
682
683
684
685
686







-
+







} {}

do_faultsim_test pagerfault-14a -prep {
  faultsim_restore_and_reopen
} -body {
  if {[catch {db backup test.db2} msg]} { error [regsub {.*: } $msg {}] }
} -test {
  faultsim_test_result {0 {}} {1 {}} {1 {SQL logic error or missing database}}
  faultsim_test_result {0 {}} {1 {}} {1 {SQL logic error}}
}

# If TEMP_STORE is 2 or greater, then the database [db2] will be created
# as an in-memory database. This test will not work in that case, as it
# is not possible to change the page-size of an in-memory database. Even
# using the backup API.
#
Changes to test/permutations.test.
85
86
87
88
89
90
91

92

93
94
95
96
97
98
99
85
86
87
88
89
90
91
92

93
94
95
96
97
98
99
100







+
-
+







#   $allquicktests
#
set alltests [list]
foreach f [glob $testdir/*.test] { lappend alltests [file tail $f] }
foreach f [glob -nocomplain       \
    $testdir/../ext/rtree/*.test  \
    $testdir/../ext/fts5/test/*.test   \
    $testdir/../ext/lsm1/test/*.test   \
] { 
] {
  lappend alltests $f 
}
foreach f [glob -nocomplain $testdir/../ext/session/*.test] { 
  lappend alltests $f 
}

if {$::tcl_platform(platform)!="unix"} {
284
285
286
287
288
289
290




291
292
293
294
295
296
297
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302







+
+
+
+







  All FTS5 tests.
} -files [
  test_set \
      [glob -nocomplain $::testdir/../ext/fts5/test/*.test] \
      -exclude *corrupt* *fault* *big* *fts5aj*
]

test_suite "lsm1" -prefix "" -description {
  All LSM1 tests.
} -files [glob -nocomplain $::testdir/../ext/lsm1/test/*.test]

test_suite "nofaultsim" -prefix "" -description {
  "Very" quick test suite. Runs in less than 5 minutes on a workstation. 
  This test suite is the same as the "quick" tests, except that some files
  that test malloc and IO errors are omitted.
} -files [
  test_set $allquicktests -exclude *malloc* *ioerr* *fault* *_err*
] -initialize {
1046
1047
1048
1049
1050
1051
1052
1053


1054
1055
1056
1057
1058
1059
1060
1051
1052
1053
1054
1055
1056
1057

1058
1059
1060
1061
1062
1063
1064
1065
1066







-
+
+








test_suite "prepare" -description {
  Run tests with the db connection using sqlite3_prepare() instead of _v2().
} -dbconfig {
  db_use_legacy_prepare $::dbhandle 1
  #$::dbhandle cache size 0
} -files [
  test_set $allquicktests -exclude *malloc* *ioerr* *fault*
  test_set $allquicktests -exclude *malloc* *ioerr* *fault* \
      stmtvtab1.test index9.test
]

# End of tests
#############################################################################

# run_tests NAME OPTIONS
#
Changes to test/pragma.test.
1692
1693
1694
1695
1696
1697
1698
1699

1700
1701
1702
1703
1704
1705
1706
1692
1693
1694
1695
1696
1697
1698

1699
1700
1701
1702
1703
1704
1705
1706







-
+







# The SQLITE_FCNTL_PRAGMA logic, with error handling.
#
db close
testvfs tvfs
sqlite3 db test.db -vfs tvfs
do_test pragma-19.1 {
  catchsql {PRAGMA error}
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_test pragma-19.2 {
  catchsql {PRAGMA error='This is the error message'}
} {1 {This is the error message}}
do_test pragma-19.3 {
  catchsql {PRAGMA error='7 This is the error message'}
} {1 {This is the error message}}
do_test pragma-19.4 {
Changes to test/pushdown.test.
51
52
53
54
55
56
57
































58
59
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91







+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+


} {b2}

do_test 1.5 {
  set L [list]
  execsql { SELECT * FROM t1 WHERE a=3 AND f(c) AND f(b) }
  set L
} {b3}

#-----------------------------------------------

do_execsql_test 2.0 {
  CREATE TABLE u1(a, b, c);
  CREATE TABLE u2(x, y, z);

  INSERT INTO u1 VALUES('a1', 'b1', 'c1');
  INSERT INTO u2 VALUES('a1', 'b1', 'c1');
}

do_test 2.1 {
  set L [list]
  execsql {
    SELECT * FROM u1 WHERE f('one')=123 AND 123=(
      SELECT x FROM u2 WHERE x=a AND f('two')
    )
  }
  set L
} {one}

do_test 2.2 {
  set L [list]
  execsql {
    SELECT * FROM u1 WHERE 123=(
      SELECT x FROM u2 WHERE x=a AND f('two')
    ) AND f('three')=123
  }
  set L
} {three}


  
finish_test
Changes to test/securedel.test.
47
48
49
50
51
52
53
























54
55
56
57
58
59
60
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84







+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+







  }
} {0 0}
do_test securedel-1.4 {
  db eval {
    PRAGMA secure_delete=ON;
    PRAGMA db2.secure_delete;
  }
} {1 1}
do_test securedel-1.5 {
  db eval {
    PRAGMA secure_delete=FAST;
    PRAGMA db2.secure_delete;
  }
} {2 2}
do_test securedel-1.6 {
  db eval {
    PRAGMA secure_delete=ON;
    PRAGMA db2.secure_delete;
  }
} {1 1}
do_test securedel-1.7 {
  db eval {
    PRAGMA main.secure_delete=FAST;
    PRAGMA db2.secure_delete;
  }
} {2 1}
do_test securedel-1.8 {
  db eval {
    PRAGMA main.secure_delete=ON;
    PRAGMA db2.secure_delete;
  }
} {1 1}

do_test securedel-2.1 {
  db eval {
    DETACH db2;
    ATTACH 'test2.db' AS db2;
    PRAGMA db2.secure_delete;
Changes to test/shared_err.test.
374
375
376
377
378
379
380
381

382
383
384
385
386
387
388
374
375
376
377
378
379
380

381
382
383
384
385
386
387
388







-
+







# any time and from any thread
#do_test shared_err-misuse-7.1 {
#  sqlite3 db test.db
#  catch {
#    sqlite3_enable_shared_cache 0
#  } msg
#  set msg
#} {library routine called out of sequence}
#} {bad parameter or other API misuse}

# Again provoke a malloc() failure when a cursor position is being saved, 
# this time during a ROLLBACK operation by some other handle. 
#
# The library should return an SQLITE_NOMEM to the caller. The query that
# owns the cursor (the one for which the position is not saved) should
# be aborted.
Changes to test/shell1.test.
296
297
298
299
300
301
302
303

304
305
306
307
308
309
310
296
297
298
299
300
301
302

303
304
305
306
307
308
309
310







-
+







  set res [catchcmd "test.db" ".dump FOO"]
  list [regexp {BEGIN TRANSACTION;} $res] \
       [regexp {COMMIT;} $res]
} {1 1}
do_test shell1-3.4.3 {
  # too many arguments
  catchcmd "test.db" ".dump FOO BAD"
} {1 {Usage: .dump ?--preserve-rowids? ?LIKE-PATTERN?}}
} {1 {Usage: .dump ?--preserve-rowids? ?--newlines? ?LIKE-PATTERN?}}

# .echo ON|OFF           Turn command echo on or off
do_test shell1-3.5.1 {
  catchcmd "test.db" ".echo"
} {1 {Usage: .echo on|off}}
do_test shell1-3.5.2 {
  catchcmd "test.db" ".echo ON"
Changes to test/shell5.test.
184
185
186
187
188
189
190

191

192
193
194
195
196
197
198
184
185
186
187
188
189
190
191

192
193
194
195
196
197
198
199







+
-
+







  catchcmd "test.db" {SELECT b FROM t1 WHERE a='7';}
} {0 {Now is the time for all good men to come to the aid of their country.}}

# import file with 2 rows, 2 columns and an initial BOM
#
do_test shell5-1.4.11 {
  set in [open shell5.csv wb]
  puts -nonewline $in "\xef\xbb\xbf"
  puts $in "\xef\xbb\xbf2|3"
  puts $in "2|3"
  puts $in "4|5"
  close $in
  set res [catchcmd "test.db" {CREATE TABLE t2(x INT, y INT);
.import shell5.csv t2
.mode quote
.header on
SELECT * FROM t2;}]
Changes to test/shell7.test.
46
47
48
49
50
51
52
53
54
46
47
48
49
50
51
52









-
-
    SELECT (SELECT x FROM f1 WHERE tn=1)==(SELECT x FROM f2 WHERE tn=1)
  } {1}
}



finish_test


Changes to test/stmtvtab1.test.
19
20
21
22
23
24
25

26
27
28
29
30
31
32
33
34
35
36


37
38
39
40
41
42

43
44
45
46
47
48
49

50
51
52
53
54
55
56
57

58
59
60
61
62
63

64
65
66
67
68
69

70
71

72
73
74
75
76
77
78

79
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35


36
37
38
39
40
41
42

43
44
45
46
47
48
49

50
51
52
53
54
55
56
57

58
59
60
61
62
63

64
65
66
67
68
69

70
71

72
73
74
75
76
77
78

79
80







+









-
-
+
+





-
+






-
+







-
+





-
+





-
+

-
+






-
+

source $testdir/tester.tcl

ifcapable !stmtvtab {
  finish_test
  return
}

db cache flush
db cache size 20
unset -nocomplain x y z
set x giraffe
set y mango
set z alabama
do_execsql_test stmtvtab1-100 {
  CREATE TABLE t1(a,b,c);
  INSERT INTO t1 VALUES($a,$b,$c);
  CREATE INDEX t1a ON t1(a);
  SELECT run, sql FROM stmt ORDER BY 1;
} {1 {SELECT run, sql FROM stmt ORDER BY 1;} 1 {CREATE INDEX t1a ON t1(a);} 1 {INSERT INTO t1 VALUES($a,$b,$c);} 1 {CREATE TABLE t1(a,b,c);}}
  SELECT run, sql FROM sqlite_stmt ORDER BY 1;
} {1 {SELECT run, sql FROM sqlite_stmt ORDER BY 1;} 1 {CREATE INDEX t1a ON t1(a);} 1 {INSERT INTO t1 VALUES($a,$b,$c);} 1 {CREATE TABLE t1(a,b,c);}}
set x neon
set y event
set z future
do_execsql_test stmtvtab1-110 {
  INSERT INTO t1 VALUES($a,$b,$c);
  SELECT reprep,run,SQL FROM stmt WHERE sql LIKE '%INSERT%' AND NOT busy;
  SELECT reprep,run,SQL FROM sqlite_stmt WHERE sql LIKE '%INSERT%' AND NOT busy;
} {1 2 {INSERT INTO t1 VALUES($a,$b,$c);}}
set x network
set y fit
set z metal
do_execsql_test stmtvtab1-120 {
  INSERT INTO t1 VALUES($a,$b,$c);
  SELECT reprep,run,SQL FROM stmt WHERE sql LIKE '%INSERT%' AND NOT busy;
  SELECT reprep,run,SQL FROM sqlite_stmt WHERE sql LIKE '%INSERT%' AND NOT busy;
} {1 3 {INSERT INTO t1 VALUES($a,$b,$c);}}
set x history
set y detail
set z grace
do_execsql_test stmtvtab1-130 {
  CREATE INDEX t1b ON t1(b);
  INSERT INTO t1 VALUES($a,$b,$c);
  SELECT reprep,run,SQL FROM stmt WHERE sql LIKE '%INSERT%' AND NOT busy;
  SELECT reprep,run,SQL FROM sqlite_stmt WHERE sql LIKE '%INSERT%' AND NOT busy;
} {2 4 {INSERT INTO t1 VALUES($a,$b,$c);}}

# All statements are still in cache
#
do_execsql_test stmtvtab1-140 {
  SELECT count(*) FROM stmt WHERE NOT busy;
  SELECT count(*) FROM sqlite_stmt WHERE NOT busy;
} {6}

# None of the prepared statements should use more than a couple thousand
# bytes of memory
#
#db eval {SELECT mem, sql FROM stmt} {puts [format {%5d %s} $mem $sql]}
#db eval {SELECT mem, sql FROM sqlite_stmt} {puts [format {%5d %s} $mem $sql]}
do_execsql_test stmtvtab1-150 {
  SELECT count(*) FROM stmt WHERE mem>5000;
  SELECT count(*) FROM sqlite_stmt WHERE mem>5000;
} {0}

# Flushing the cache clears all of the prepared statements.
#
db cache flush
do_execsql_test stmtvtab1-160 {
  SELECT * FROM stmt WHERE NOT busy;
  SELECT * FROM sqlite_stmt WHERE NOT busy;
} {}
Changes to test/subjournal.test.
63
64
65
66
67
68
69
70
63
64
65
66
67
68
69








-
} {SQLITE_DONE}
do_test 2.4 {
  B finish
  execsql { PRAGMA integrity_check } db2
} {ok}

finish_test

Changes to test/syscall.test.
214
215
216
217
218
219
220
221
222


223
224
225
226
227
228
229
214
215
216
217
218
219
220


221
222
223
224
225
226
227
228
229







-
-
+
+







  fconfigure $fd -translation binary -encoding binary
  puts -nonewline $fd [string range "xSQLite" 1 $nByte]
  close $fd
}

foreach {nByte res} {
  1      {0 {}}
  2      {1 {file is encrypted or is not a database}}
  3      {1 {file is encrypted or is not a database}}
  2      {1 {file is not a database}}
  3      {1 {file is not a database}}
} {
  do_test 7.$nByte {
    create_db_file $nByte
    list [catch {
      sqlite3 db test.db
      execsql { CREATE TABLE t1(a, b) }
    } msg] $msg
Changes to test/tabfunc01.test.
146
147
148
149
150
151
152
153

154
155
156
157
158

159
160
161
162
163

164
165
166
167

168
169
170
171
172
173

174
175
176
177
178
179


180
181
182
183
184
185
186


187
188
189
190
191
192
193

194
195
196
197
198
199
200


201
202
203
204
205
206
207
208


209
210
211
212
213
214
215
146
147
148
149
150
151
152

153
154
155
156
157

158
159
160
161
162

163
164
165
166

167
168
169
170
171
172

173
174
175
176
177


178
179
180
181
182
183
184


185
186
187
188
189
190
191
192

193
194
195
196
197
198
199

200
201
202
203
204
205
206
207


208
209
210
211
212
213
214
215
216







-
+




-
+




-
+



-
+





-
+




-
-
+
+





-
-
+
+






-
+






-
+
+






-
-
+
+







  SELECT b FROM t600 WHERE a IN generate_series(2,52,10);
} {(002) (012) (022) (032) (042) (052)}


do_test tabfunc01-700 {
  set PTR1 [intarray_addr 5 7 13 17 23]
  db eval {
    SELECT b FROM t600, carray($PTR1,5) WHERE a=value;
    SELECT b FROM t600, carray(inttoptr($PTR1),5) WHERE a=value;
  }
} {(005) (007) (013) (017) (023)}
do_test tabfunc01-701 {
  db eval {
    SELECT b FROM t600 WHERE a IN carray($PTR1,5,'int32');
    SELECT b FROM t600 WHERE a IN carray(inttoptr($PTR1),5,'int32');
  }
} {(005) (007) (013) (017) (023)}
do_test tabfunc01-702 {
  db eval {
    SELECT b FROM t600 WHERE a IN carray($PTR1,4,'int32');
    SELECT b FROM t600 WHERE a IN carray(inttoptr($PTR1),4,'int32');
  }
} {(005) (007) (013) (017)}
do_catchsql_test tabfunc01-710 {
  SELECT b FROM t600 WHERE a IN carray($PTR1,5,'int33');
  SELECT b FROM t600 WHERE a IN carray(inttoptr($PTR1),5,'int33');
} {1 {unknown datatype: 'int33'}}

do_test tabfunc01-720 {
  set PTR2 [int64array_addr 5 7 13 17 23]
  db eval {
    SELECT b FROM t600, carray($PTR2,5,'int64') WHERE a=value;
    SELECT b FROM t600, carray(inttoptr($PTR2),5,'int64') WHERE a=value;
  }
} {(005) (007) (013) (017) (023)}
do_test tabfunc01-721 {
  db eval {
    SELECT remember(123,$PTR2);
    SELECT value FROM carray($PTR2,5,'int64');
    SELECT remember(123,inttoptr($PTR2));
    SELECT value FROM carray(inttoptr($PTR2),5,'int64');
  }
} {123 123 7 13 17 23}
do_test tabfunc01-722 {
  set PTR3 [expr {$PTR2+16}]
  db eval {
    SELECT remember(987,$PTR3);
    SELECT value FROM carray($PTR2,5,'int64');
    SELECT remember(987,inttoptr($PTR3));
    SELECT value FROM carray(inttoptr($PTR2),5,'int64');
  }
} {987 123 7 987 17 23}

do_test tabfunc01-730 {
  set PTR4 [doublearray_addr 5.0 7.0 13.0 17.0 23.0]
  db eval {
    SELECT b FROM t600, carray($PTR4,5,'double') WHERE a=value;
    SELECT b FROM t600, carray(inttoptr($PTR4),5,'double') WHERE a=value;
  }
} {(005) (007) (013) (017) (023)}

do_test tabfunc01-740 {
  set PTR5 [textarray_addr x5 x7 x13 x17 x23]
  db eval {
    SELECT b FROM t600, carray($PTR5,5,'char*') WHERE a=trim(value,'x');
    SELECT b FROM t600, carray(inttoptr($PTR5),5,'char*')
     WHERE a=trim(value,'x');
  }
} {(005) (007) (013) (017) (023)}

do_test tabfunc01-750 {
  db eval {
    SELECT aa.value, bb.value, '|'
      FROM carray($PTR4,5,'double') AS aa
      JOIN carray($PTR5,5,'char*') AS bb ON aa.rowid=bb.rowid;
      FROM carray(inttoptr($PTR4),5,'double') AS aa
      JOIN carray(inttoptr($PTR5),5,'char*') AS bb ON aa.rowid=bb.rowid;
  }
} {5.0 x5 | 7.0 x7 | 13.0 x13 | 17.0 x17 | 23.0 x23 |}

# Free up memory allocations
intarray_addr
int64array_addr
doublearray_addr
Changes to test/triggerF.test.
65
66
67
68
69
70
71
72
65
66
67
68
69
70
71








-

  do_execsql_test 1.$tn.2 {
    SELECT * FROM log ORDER BY rowid;
  } $log
}

finish_test

Added test/unionvtab.test.





































































































































































































































































































































































































































































1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
# 2017-07-15
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is percentile.c extension
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix unionvtab

load_static_extension db unionvtab

#-------------------------------------------------------------------------
# Warm body tests.
#
forcedelete test.db2
do_execsql_test 1.0 {
  ATTACH 'test.db2' AS aux;

  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
  CREATE TABLE t2(a INTEGER PRIMARY KEY, b TEXT);
  CREATE TABLE aux.t3(a INTEGER PRIMARY KEY, b TEXT);


  INSERT INTO t1 VALUES(1, 'one'), (2, 'two'), (3, 'three');
  INSERT INTO t2 VALUES(10, 'ten'), (11, 'eleven'), (12, 'twelve');
  INSERT INTO t3 VALUES(20, 'twenty'), (21, 'twenty-one'), (22, 'twenty-two');
}

do_execsql_test 1.1 {
  CREATE VIRTUAL TABLE temp.uuu USING unionvtab(
    "VALUES(NULL, 't1', 1, 9),  ('main', 't2', 10, 19), ('aux', 't3', 20, 29)"
  );
  SELECT * FROM uuu;
} {
  1 one 2 two 3 three
  10 ten 11 eleven 12 twelve
  20 twenty 21 twenty-one 22 twenty-two
}

do_execsql_test 1.2 {
  PRAGMA table_info(uuu);
} {
  0 a INTEGER 0 {} 0 
  1 b TEXT 0 {} 0
}

do_execsql_test 1.3 {
  SELECT * FROM uuu WHERE rowid = 3;
  SELECT * FROM uuu WHERE rowid = 11;
} {3 three 11 eleven}

do_execsql_test 1.4 {
  SELECT * FROM uuu WHERE rowid IN (12, 10, 2);
} {2 two 10 ten 12 twelve}

do_execsql_test 1.5 {
  SELECT * FROM uuu WHERE rowid BETWEEN 3 AND 11;
} {3 three 10 ten 11 eleven}

do_execsql_test 1.6 {
  SELECT * FROM uuu WHERE rowid BETWEEN 11 AND 15;
} {11 eleven 12 twelve}

do_execsql_test 1.7 {
  SELECT * FROM uuu WHERE rowid BETWEEN -46 AND 1500;
} {
  1 one 2 two 3 three
  10 ten 11 eleven 12 twelve
  20 twenty 21 twenty-one 22 twenty-two
}

do_execsql_test 1.8 {
  CREATE TABLE src(db, tbl, min, max);
  INSERT INTO src VALUES(NULL, 't1', 1, 9);
  INSERT INTO src VALUES('main', 't2', 10, 19);
  INSERT INTO src VALUES('aux', 't3', 20, 29);
  CREATE VIRTUAL TABLE temp.opp USING unionvtab(src);
  SELECT * FROM opp;
} {
  1 one 2 two 3 three
  10 ten 11 eleven 12 twelve
  20 twenty 21 twenty-one 22 twenty-two
}

do_execsql_test 1.9 {
  CREATE VIRTUAL TABLE temp.qll USING unionvtab(
    'SELECT * FROM src WHERE db!=''xyz'''
  );
  SELECT * FROM qll WHERE rowid BETWEEN 10 AND 21;
} {
  10 ten 11 eleven 12 twelve
  20 twenty 21 twenty-one
}

#-------------------------------------------------------------------------
# Error conditions.
#
#   2.1.*: Attempt to create a unionvtab table outside of the TEMP schema.
#   2.2.*: Tables that do not exist.
#   2.3.*: Non rowid tables.
#   2.4.*: Tables with mismatched schemas.
#   2.5.*: A unionvtab table with zero source tables.
#
do_catchsql_test 2.1.1 {
  CREATE VIRTUAL TABLE u1 USING unionvtab("VALUES(NULL, 't1', 1, 100)");
} {1 {unionvtab tables must be created in TEMP schema}}
do_catchsql_test 2.1.2 {
  CREATE VIRTUAL TABLE main.u1 USING unionvtab("VALUES('', 't1', 1, 100)");
} {1 {unionvtab tables must be created in TEMP schema}}
do_catchsql_test 2.1.3 {
  CREATE VIRTUAL TABLE aux.u1 USING unionvtab("VALUES('', 't1', 1, 100)");
} {1 {unionvtab tables must be created in TEMP schema}}

do_catchsql_test 2.2.1 {
  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES(NULL, 't555', 1, 100)");
} {1 {no such rowid table: t555}}
do_catchsql_test 2.2.2 {
  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES('aux', 't555', 1, 100)");
} {1 {no such rowid table: aux.t555}}
do_catchsql_test 2.2.3 {
  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES('xua', 't555', 1, 100)");
} {1 {no such rowid table: xua.t555}}

do_execsql_test 2.3.0 {
  CREATE TABLE wr1(a, b, c PRIMARY KEY) WITHOUT ROWID;
  CREATE VIEW v1 AS SELECT * FROM t1;
  CREATE VIEW v2 AS SELECT _rowid_, * FROM t1;

  CREATE TABLE wr2(a, _rowid_ INTEGER, c PRIMARY KEY) WITHOUT ROWID;
  CREATE TABLE wr3(a, b, _rowid_ PRIMARY KEY) WITHOUT ROWID;
}
do_catchsql_test 2.3.1 {
  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES('main', 'wr1', 1, 2)");
} {1 {no such rowid table: main.wr1}}
do_catchsql_test 2.3.2 {
  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES(NULL, 'v1', 1, 2)");
} {1 {no such rowid table: v1}}
do_catchsql_test 2.3.3 {
  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES(NULL, 'v2', 1, 2)");
} {1 {no such rowid table: v2}}
do_catchsql_test 2.3.4 {
  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES(NULL, 'wr2', 1, 2)");
} {1 {no such rowid table: wr2}}
do_catchsql_test 2.3.5 {
  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES(NULL, 'wr3', 1, 2)");
} {1 {no such rowid table: wr3}}

do_execsql_test 2.4.0 {
  CREATE TABLE x1(a BLOB, b);
  CREATE TABLE x2(a BLOB, b);
  CREATE TEMP TABLE x3(a BLOB, b);

  CREATE TABLE aux.y1(one, two, three INTEGER PRIMARY KEY);
  CREATE TEMP TABLE y2(one, two, three INTEGER PRIMARY KEY);
  CREATE TABLE y3(one, two, three INTEGER PRIMARY KEY);
}

foreach {tn dbs res} {
  1 {x1 x2 x3} {0 {}}
  2 {y1 y2 y3} {0 {}}
  3 {x1 y2 y3} {1 {source table schema mismatch}}
  4 {x1 y2 x3} {1 {source table schema mismatch}}
  5 {x1 x2 y3} {1 {source table schema mismatch}}
} {
  set L [list]
  set iMin 0
  foreach e $dbs {
    set E [split $e .]
    if {[llength $E]>1} {
      lappend L "('[lindex $E 0]', '[lindex $E 1]', $iMin, $iMin)"
    } else {
      lappend L "(NULL, '$e', $iMin, $iMin)"
    }
    incr iMin
  }

  set sql "CREATE VIRTUAL TABLE temp.a1 USING unionvtab(\"VALUES [join $L ,]\")"
  do_catchsql_test 2.4.$tn "
    DROP TABLE IF EXISTS temp.a1;
    CREATE VIRTUAL TABLE temp.a1 USING unionvtab(\"VALUES [join $L ,]\");
  " $res
}

do_catchsql_test 2.5 {
  CREATE VIRTUAL TABLE temp.b1 USING unionvtab(
    [SELECT 'main', 'b1', 0, 100 WHERE 0]
  )
} {1 {no source tables configured}}

foreach {tn sql} {
  1 { VALUES('main', 't1', 10, 20), ('main', 't2', 30, 29) }
  2 { VALUES('main', 't1', 10, 20), ('main', 't2', 15, 30) }
} {
  do_catchsql_test 2.6.$tn "
    CREATE VIRTUAL TABLE temp.a1 USING unionvtab(`$sql`)
  " {1 {rowid range mismatch error}}
}

do_catchsql_test 2.7.1 {
  CREATE VIRTUAL TABLE temp.b1 USING unionvtab(1, 2, 3, 4)
} {1 {wrong number of arguments for unionvtab}}

#-------------------------------------------------------------------------
#
reset_db
load_static_extension db unionvtab
do_execsql_test 3.0 {
  CREATE TABLE tbl1(a INTEGER PRIMARY KEY, b);
  CREATE TABLE tbl2(a INTEGER PRIMARY KEY, b);
  CREATE TABLE tbl3(a INTEGER PRIMARY KEY, b);

  WITH ss(ii) AS ( SELECT 1 UNION ALL SELECT ii+1 FROM ss WHERE ii<100 )
  INSERT INTO tbl1 SELECT ii, '1.' || ii FROM ss;

  WITH ss(ii) AS ( SELECT 1 UNION ALL SELECT ii+1 FROM ss WHERE ii<100 )
  INSERT INTO tbl2 SELECT ii, '2.' || ii FROM ss;

  WITH ss(ii) AS ( SELECT 1 UNION ALL SELECT ii+1 FROM ss WHERE ii<100 )
  INSERT INTO tbl3 SELECT ii, '3.' || ii FROM ss;

  CREATE VIRTUAL TABLE temp.uu USING unionvtab(
    "VALUES(NULL,'tbl2', 26, 74), (NULL,'tbl3', 75, 100), (NULL,'tbl1', 1, 25)"
  );
}

do_execsql_test 3.1 {
  SELECT * FROM uu WHERE rowid = 10;
} {10 {1.10}}
do_execsql_test 3.2 {
  SELECT * FROM uu WHERE rowid = 25;
} {25 {1.25}}

do_execsql_test 3.3 { SELECT count(*) FROM uu WHERE rowid <= 24 } {24}

# The following queries get the "wrong" answers. This is because the
# module assumes that each source table contains rowids from only within
# the range specified. For example, (rowid <= 25) matches 100 rows. This
# is because the module implements (rowid <= 25) as a full table scan
# of tbl1 only.
do_execsql_test 3.4.1 { SELECT count(*) FROM uu WHERE rowid <= 25 } {100}
do_execsql_test 3.4.2 { SELECT count(*) FROM uu WHERE rowid <= 26 } {126}
do_execsql_test 3.4.3 { SELECT count(*) FROM uu WHERE rowid <= 73 } {173}
do_execsql_test 3.4.4 { SELECT count(*) FROM uu WHERE rowid <= 74 } {200}
do_execsql_test 3.4.5 { SELECT count(*) FROM uu WHERE rowid <= 75 } {275}
do_execsql_test 3.4.6 { SELECT count(*) FROM uu WHERE rowid <= 99 } {299}
do_execsql_test 3.4.7 { SELECT count(*) FROM uu WHERE rowid <= 100 } {300}
do_execsql_test 3.4.8 { SELECT count(*) FROM uu WHERE rowid <= 101 } {300}

do_execsql_test 3.5.1 { SELECT count(*) FROM uu WHERE rowid < 25 } {24}
do_execsql_test 3.5.2 { SELECT count(*) FROM uu WHERE rowid < 26 } {100}
do_execsql_test 3.5.3 { SELECT count(*) FROM uu WHERE rowid < 27 } {126}
do_execsql_test 3.5.4 { SELECT count(*) FROM uu WHERE rowid < 73 } {172}
do_execsql_test 3.5.5 { SELECT count(*) FROM uu WHERE rowid < 74 } {173}
do_execsql_test 3.5.6 { SELECT count(*) FROM uu WHERE rowid < 75 } {200}
do_execsql_test 3.5.7 { SELECT count(*) FROM uu WHERE rowid < 76 } {275}
do_execsql_test 3.5.8 { SELECT count(*) FROM uu WHERE rowid < 99 } {298}
do_execsql_test 3.5.9 { SELECT count(*) FROM uu WHERE rowid < 100 } {299}
do_execsql_test 3.5.10 { SELECT count(*) FROM uu WHERE rowid < 101 } {300}

do_execsql_test 3.6.1 { SELECT count(*) FROM uu WHERE rowid > 24 } {276}
do_execsql_test 3.6.1 { SELECT count(*) FROM uu WHERE rowid > 25 } {200}
do_execsql_test 3.6.2 { SELECT count(*) FROM uu WHERE rowid > 26 } {174}
do_execsql_test 3.6.3 { SELECT count(*) FROM uu WHERE rowid > 27 } {173}
do_execsql_test 3.6.4 { SELECT count(*) FROM uu WHERE rowid > 73 } {127}
do_execsql_test 3.6.5 { SELECT count(*) FROM uu WHERE rowid > 74 } {100}
do_execsql_test 3.6.6 { SELECT count(*) FROM uu WHERE rowid > 75 } {25}
do_execsql_test 3.6.7 { SELECT count(*) FROM uu WHERE rowid > 76 } {24}
do_execsql_test 3.6.8 { SELECT count(*) FROM uu WHERE rowid > 99 } {1}
do_execsql_test 3.6.9 { SELECT count(*) FROM uu WHERE rowid > 100 } {0}
do_execsql_test 3.6.10 { SELECT count(*) FROM uu WHERE rowid > 101 } {0}

do_execsql_test 3.7.1 { SELECT count(*) FROM uu WHERE rowid >= 24 } {277}
do_execsql_test 3.7.1 { SELECT count(*) FROM uu WHERE rowid >= 25 } {276}
do_execsql_test 3.7.2 { SELECT count(*) FROM uu WHERE rowid >= 26 } {200}
do_execsql_test 3.7.3 { SELECT count(*) FROM uu WHERE rowid >= 27 } {174}
do_execsql_test 3.7.4 { SELECT count(*) FROM uu WHERE rowid >= 73 } {128}
do_execsql_test 3.7.5 { SELECT count(*) FROM uu WHERE rowid >= 74 } {127}
do_execsql_test 3.7.6 { SELECT count(*) FROM uu WHERE rowid >= 75 } {100}
do_execsql_test 3.7.7 { SELECT count(*) FROM uu WHERE rowid >= 76 } {25}
do_execsql_test 3.7.8 { SELECT count(*) FROM uu WHERE rowid >= 99 } {2}
do_execsql_test 3.7.9 { SELECT count(*) FROM uu WHERE rowid >= 100 } {1}
do_execsql_test 3.7.10 { SELECT count(*) FROM uu WHERE rowid >= 101 } {0}

set L [expr  9223372036854775807]
set S [expr -9223372036854775808]

do_execsql_test 3.8.1 { SELECT count(*) FROM uu WHERE rowid >= $S } {300}
do_execsql_test 3.8.2 { SELECT count(*) FROM uu WHERE rowid >  $S } {300}
do_execsql_test 3.8.3 { SELECT count(*) FROM uu WHERE rowid <= $S } {0}
do_execsql_test 3.8.4 { SELECT count(*) FROM uu WHERE rowid <  $S } {0}

do_execsql_test 3.9.1 { SELECT count(*) FROM uu WHERE rowid >= $L } {0}
do_execsql_test 3.9.2 { SELECT count(*) FROM uu WHERE rowid >  $L } {0}
do_execsql_test 3.9.3 { SELECT count(*) FROM uu WHERE rowid <= $L } {300}
do_execsql_test 3.9.4 { SELECT count(*) FROM uu WHERE rowid <  $L } {300}

do_execsql_test 3.10.1 { SELECT count(*) FROM uu WHERE a < 25 } {24}
do_execsql_test 3.10.2 { SELECT count(*) FROM uu WHERE a < 26 } {100}
do_execsql_test 3.10.3 { SELECT count(*) FROM uu WHERE a < 27 } {126}
do_execsql_test 3.10.4 { SELECT count(*) FROM uu WHERE a < 73 } {172}
do_execsql_test 3.10.5 { SELECT count(*) FROM uu WHERE a < 74 } {173}
do_execsql_test 3.10.6 { SELECT count(*) FROM uu WHERE a < 75 } {200}
do_execsql_test 3.10.7 { SELECT count(*) FROM uu WHERE a < 76 } {275}
do_execsql_test 3.10.8 { SELECT count(*) FROM uu WHERE a < 99 } {298}
do_execsql_test 3.10.9 { SELECT count(*) FROM uu WHERE a < 100 } {299}
do_execsql_test 3.10.10 { SELECT count(*) FROM uu WHERE a < 101 } {300}


#-------------------------------------------------------------------------
#
do_execsql_test 4.0 {
  CREATE TABLE s1(k INTEGER PRIMARY KEY, v);
  INSERT INTO s1 VALUES($S, 'one');
  INSERT INTO s1 VALUES($S+1, 'two');
  INSERT INTO s1 VALUES($S+2, 'three');

  CREATE TABLE l1(k INTEGER PRIMARY KEY, v);
  INSERT INTO l1 VALUES($L, 'six');
  INSERT INTO l1 VALUES($L-1, 'five');
  INSERT INTO l1 VALUES($L-2, 'four');

  CREATE VIRTUAL TABLE temp.sl USING unionvtab(
    "SELECT NULL, 'l1', 0, 9223372036854775807
     UNION ALL
     SELECT NULL, 's1', -9223372036854775808, -1"
  );
}

do_execsql_test 4.1 {
  SELECT * FROM sl;
} {
  -9223372036854775808 one -9223372036854775807 two -9223372036854775806 three
   9223372036854775805 four 9223372036854775806 five 9223372036854775807 six
}

foreach {k v} {
  -9223372036854775808 one -9223372036854775807 two -9223372036854775806 three
   9223372036854775805 four 9223372036854775806 five 9223372036854775807 six
} {
  do_execsql_test 4.2.$v { SELECT * FROM sl WHERE rowid=$k } [list $k $v]
}

do_execsql_test 4.3.1 {
  SELECT * FROM sl WHERE rowid>-9223372036854775808
} {
  -9223372036854775807 two -9223372036854775806 three
   9223372036854775805 four 9223372036854775806 five 9223372036854775807 six
}
do_execsql_test 4.3.2 {
  SELECT * FROM sl WHERE rowid>=-9223372036854775808
} {
  -9223372036854775808 one -9223372036854775807 two -9223372036854775806 three
   9223372036854775805 four 9223372036854775806 five 9223372036854775807 six
}
do_execsql_test 4.3.3 {
  SELECT * FROM sl WHERE rowid<=-9223372036854775808
} {
  -9223372036854775808 one
}
do_execsql_test 4.3.4 {
  SELECT * FROM sl WHERE rowid<-9223372036854775808
} { }

do_execsql_test 4.4.1 {
  SELECT * FROM sl WHERE rowid<9223372036854775807
} {
  -9223372036854775808 one -9223372036854775807 two -9223372036854775806 three
   9223372036854775805 four 9223372036854775806 five
}
do_execsql_test 4.4.2 {
  SELECT * FROM sl WHERE rowid<=9223372036854775807
} {
  -9223372036854775808 one -9223372036854775807 two -9223372036854775806 three
   9223372036854775805 four 9223372036854775806 five 9223372036854775807 six
}
do_execsql_test 4.4.3 {
  SELECT * FROM sl WHERE rowid>=9223372036854775807
} {
  9223372036854775807 six
}
do_execsql_test 4.4.4 {
  SELECT * FROM sl WHERE rowid>9223372036854775807
} { }

#-------------------------------------------------------------------------
# More than 8 source tables.
#
do_execsql_test 5.0 {
  CREATE TABLE c0(one, two INTEGER PRIMARY KEY);
  CREATE TABLE c1(one, two INTEGER PRIMARY KEY);
  CREATE TABLE c2(one, two INTEGER PRIMARY KEY);
  CREATE TABLE c3(one, two INTEGER PRIMARY KEY);
  CREATE TABLE c4(one, two INTEGER PRIMARY KEY);
  CREATE TABLE c5(one, two INTEGER PRIMARY KEY);
  CREATE TABLE c6(one, two INTEGER PRIMARY KEY);
  CREATE TABLE c7(one, two INTEGER PRIMARY KEY);
  CREATE TABLE c8(one, two INTEGER PRIMARY KEY);
  CREATE TABLE c9(one, two INTEGER PRIMARY KEY);

  INSERT INTO c0 VALUES('zero', 0);
  INSERT INTO c1 VALUES('one', 1);
  INSERT INTO c2 VALUES('two', 2);
  INSERT INTO c3 VALUES('three', 3);
  INSERT INTO c4 VALUES('four', 4);
  INSERT INTO c5 VALUES('five', 5);
  INSERT INTO c6 VALUES('six', 6);
  INSERT INTO c7 VALUES('seven', 7);
  INSERT INTO c8 VALUES('eight', 8);
  INSERT INTO c9 VALUES('nine', 9);

  CREATE VIRTUAL TABLE temp.cc USING unionvtab([
    SELECT 'main', 'c9', 9, 9 UNION ALL
    SELECT 'main', 'c8', 8, 8 UNION ALL
    SELECT 'main', 'c7', 7, 7 UNION ALL
    SELECT 'main', 'c6', 6, 6 UNION ALL
    SELECT 'main', 'c5', 5, 5 UNION ALL
    SELECT 'main', 'c4', 4, 4 UNION ALL
    SELECT 'main', 'c3', 3, 3 UNION ALL
    SELECT 'main', 'c2', 2, 2 UNION ALL
    SELECT 'main', 'c1', 1, 1 UNION ALL
    SELECT 'main', 'c0', 0, 0
  ]);

  SELECT sum(two) FROM cc;
} {45}

do_execsql_test 5.1 {
  SELECT one FROM cc WHERE one>='seven'
} {zero two three six seven}

do_execsql_test 5.2 {
  SELECT y.one FROM cc AS x, cc AS y WHERE x.one=y.one AND x.rowid>5
} {six seven eight nine}

do_execsql_test 5.3 {
  SELECT cc.one FROM c4, cc WHERE cc.rowid>c4.rowid
} {five six seven eight nine}

do_execsql_test 5.4 {
  SELECT * FROM cc WHERE two LIKE '6'
} {six 6}

finish_test

Added test/unionvtabfault.test.




































































1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
# 2017-07-15
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is percentile.c extension
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix unionvtabfault


forcedelete test.db2
do_execsql_test 1.0 {
  ATTACH 'test.db2' AS aux;
  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
  CREATE TABLE t2(a INTEGER PRIMARY KEY, b TEXT);
  CREATE TABLE aux.t3(a INTEGER PRIMARY KEY, b TEXT);

  INSERT INTO t1 VALUES(1, 'one'), (2, 'two'), (3, 'three');
  INSERT INTO t2 VALUES(10, 'ten'), (11, 'eleven'), (12, 'twelve');
  INSERT INTO t3 VALUES(20, 'twenty'), (21, 'twenty-one'), (22, 'twenty-two');
}
faultsim_save_and_close

do_faultsim_test 1.1 -faults * -prep {
  faultsim_restore_and_reopen
  load_static_extension db unionvtab
  execsql { ATTACH 'test.db2' AS aux; }
  execsql { CREATE TEMP TABLE xyz(x); }
} -body {
  execsql {
    CREATE VIRTUAL TABLE temp.uuu USING unionvtab(
    "VALUES(NULL, 't1', 1, 9),  ('main', 't2', 10, 19), ('aux', 't3', 20, 29)"
    );
  }
} -test {
  faultsim_test_result {0 {}}             \
     {1 {vtable constructor failed: uuu}} \
     {1 {sql error: interrupted}}
}

faultsim_restore_and_reopen
load_static_extension db unionvtab
execsql { ATTACH 'test.db2' AS aux; }
execsql { CREATE TEMP TABLE xyz(x); }
execsql {
  CREATE VIRTUAL TABLE temp.uuu USING unionvtab(
      "VALUES(NULL, 't1', 1, 9),  ('main', 't2', 10, 19), ('aux', 't3', 20, 29)"
  );
}
do_faultsim_test 1.2 -faults oom* -prep {
} -body {
  execsql { SELECT * FROM uuu }
} -test {
  faultsim_test_result {0 {1 one 2 two 3 three 10 ten 11 eleven 12 twelve 20 twenty 21 twenty-one 22 twenty-two}} 
}


finish_test

Changes to test/update2.test.
198
199
200
201
202
203
204
205
198
199
200
201
202
203
204








-
  catch { array unset A }
  db eval { EXPLAIN UPDATE x1 SET c=c+1 WHERE b='a' } { incr A($opcode) }
  set A(NotExists)
} {1}


finish_test

Changes to test/vtab1.test.
944
945
946
947
948
949
950
951

952
953
954
955
956
957

958
959
960
961
962
963
964
944
945
946
947
948
949
950

951
952
953
954
955
956

957
958
959
960
961
962
963
964







-
+





-
+







} {1 {vtable constructor failed: e2}}
do_test vtab1.10-2 {
  set rc [catch {
    set ptr [sqlite3_connection_pointer db]
    sqlite3_declare_vtab $ptr {CREATE TABLE abc(a, b, c)}
  } msg]
  list $rc $msg
} {1 {library routine called out of sequence}}
} {1 {bad parameter or other API misuse}}
do_test vtab1.10-3 {
  set ::echo_module_begin_fail r
  catchsql {
    INSERT INTO e VALUES(1, 2, 3);
  }
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_test vtab1.10-4 {
  catch {execsql {
    EXPLAIN SELECT * FROM e WHERE rowid = 2;
    EXPLAIN QUERY PLAN SELECT * FROM e WHERE rowid = 2 ORDER BY rowid;
  }}
} {0}

Changes to test/vtab7.test.
158
159
160
161
162
163
164
165

166
167
168
169
170
171
172
158
159
160
161
162
163
164

165
166
167
168
169
170
171
172







-
+







#   unset -nocomplain ::callbacks(xSync,abc)
#   set ::callbacks(xCommit,abc) {
#     execsql { INSERT INTO log VALUES('hello') }
#   }
#   catchsql {
#     INSERT INTO abc2 VALUES(1, 2, 3);
#   }
# } {1 {library routine called out of sequence}}
# } {1 {bad parameter or other API misuse}}

# These tests, vtab7-4.*, test that an SQLITE_LOCKED error is returned
# if an attempt to write to a virtual module table or create a new 
# virtual table from within an xSync() callback.
do_test vtab7-4.1 {
  execsql {
    CREATE TABLE def(d, e, f);
Changes to test/vtab_alter.test.
91
92
93
94
95
96
97
98

99
100
101
102
103
91
92
93
94
95
96
97

98
99
100
101
102
103







-
+






# Cause an error to occur when the echo module renames its
# backing store table.
#
do_test vtab_alter-3.1 {
  execsql  { CREATE TABLE y_base(a, b, c) }
  catchsql { ALTER TABLE x RENAME TO y }
} {1 {SQL logic error or missing database}}
} {1 {SQL logic error}}
do_test vtab_alter-3.2 {
  execsql  { SELECT * FROM x }
} {1 2 3}

finish_test
Changes to tool/mkopcodeh.tcl.
188
189
190
191
192
193
194
195
196



197
198
199

200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218




219
220
221
222
223
224
225


226
227
228
229
230
231







232
233
234
235
236
237
238
188
189
190
191
192
193
194


195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229

230
231
232






233
234
235
236
237
238
239
240
241
242
243
244
245
246







-
-
+
+
+



+



















+
+
+
+





-

+
+
-
-
-
-
-
-
+
+
+
+
+
+
+







    incr cnt
    while {[info exists used($cnt)]} {incr cnt}
    set op($name) $cnt
    set used($cnt) 1
    set def($cnt) $name
  }
}
set max $cnt
for {set i 0} {$i<$nOp} {incr i} {

set max [lindex [lsort -decr -integer [array names used]] 0]
for {set i 0} {$i<=$max} {incr i} {
  if {![info exists used($i)]} {
    set def($i) "OP_NotUsed_$i"
  }
  if {$i>$max} {set max $i}
  set name $def($i)
  puts -nonewline [format {#define %-16s %3d} $name $i]
  set com {}
  if {[info exists sameas($i)]} {
    set com "same as $sameas($i)"
  }
  if {[info exists synopsis($name)]} {
    set x $synopsis($name)
    if {$com==""} {
      set com "synopsis: $x"
    } else {
      append com ", synopsis: $x"
    }
  }
  if {$com!=""} {
    puts -nonewline [format " /* %-42s */" $com]
  }
  puts ""
}

if {$max>255} {
  error "More than 255 opcodes - VdbeOp.opcode is of type u8!"
}

# Generate the bitvectors:
#
set bv(0) 0
for {set i 0} {$i<=$max} {incr i} {
  set name $def($i)
  set x 0
  set name $def($i)
  if {[string match OP_NotUsed* $name]==0} {
  if {$jump($name)}  {incr x 1}
  if {$in1($name)}   {incr x 2}
  if {$in2($name)}   {incr x 4}
  if {$in3($name)}   {incr x 8}
  if {$out2($name)}  {incr x 16}
  if {$out3($name)}  {incr x 32}
    if {$jump($name)}  {incr x 1}
    if {$in1($name)}   {incr x 2}
    if {$in2($name)}   {incr x 4}
    if {$in3($name)}   {incr x 8}
    if {$out2($name)}  {incr x 16}
    if {$out3($name)}  {incr x 32}
  }
  set bv($i) $x
}
puts ""
puts "/* Properties such as \"out2\" or \"jump\" that are specified in"
puts "** comments following the \"case\" for each opcode in the vdbe.c"
puts "** are encoded into bitvectors as follows:"
puts "*/"
Changes to tool/mkpragmatab.tcl.
248
249
250
251
252
253
254


















255
256
257
258
259
260
261
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279







+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+







  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: database_list
  FLAG: NeedSchema Result0
  COLS: seq name file
  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: function_list
  FLAG: Result0
  COLS: name builtin
  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
  IF:   defined(SQLITE_INTROSPECTION_PRAGMAS)

  NAME: module_list
  FLAG: Result0
  COLS: name
  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
  IF:   !defined(SQLITE_OMIT_VIRTUALTABLE)
  IF:   defined(SQLITE_INTROSPECTION_PRAGMAS)

  NAME: pragma_list
  FLAG: Result0
  COLS: name
  IF:   defined(SQLITE_INTROSPECTION_PRAGMAS)

  NAME: collation_list
  FLAG: Result0
  COLS: seq name
  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: foreign_key_list
  FLAG: NeedSchema Result1 SchemaOpt
Added tool/mkshellc.tcl.














































1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
#!/usr/bin/tclsh
#
# Run this script to generate the "src/shell.c" source file from 
# constituent parts.
#
set topdir [file dir [file dir [file normal $argv0]]]
puts "Overwriting $topdir/src/shell.c with new shell source code..."
set out [open $topdir/src/shell.c wb]
puts $out {/* DO NOT EDIT!
** This file is automatically generated by the script in the canonical
** SQLite source tree at tool/mkshellc.tcl.  That script combines source
** code from various constituent source files of SQLite into this single
** "shell.c" file used to implement the SQLite command-line shell.
**
** Most of the code found below comes from the "src/shell.c.in" file in
** the canonical SQLite source tree.  That main file contains "INCLUDE"
** lines that specify other files in the canonical source tree that are
** inserted to getnerate this complete program source file.
**
** The code from multiple files is combined into this single "shell.c"
** source file to help make the command-line program easier to compile.
**
** To modify this program, get a copy of the canonical SQLite source tree,
** edit the src/shell.c.in" and/or some of the other files that are included
** by "src/shell.c.in", then rerun the tool/mkshellc.tcl script.
*/}
set in [open $topdir/src/shell.c.in rb]
while {![eof $in]} {
  set lx [gets $in]
  if {[regexp {^INCLUDE } $lx]} {
    set cfile [lindex $lx 1]
    puts $out "/************************* Begin $cfile ******************/"
    set in2 [open $topdir/src/$cfile rb]
    while {![eof $in2]} {
      set lx [gets $in2]
      if {[regexp {^#include "sqlite} $lx]} continue
      puts $out $lx
    }
    close $in2
    puts $out "/************************* End $cfile ********************/"
    continue
  }
  puts $out $lx
}
close $in
close $out
Changes to tool/showstat4.c.
114
115
116
117
118
119
120

121

122


123
124
125
126
127
128
129
114
115
116
117
118
119
120
121
122
123

124
125
126
127
128
129
130
131
132







+

+
-
+
+







      }else if( iVal<=7 ){
        v = (signed char)aSample[y];
        for(j=1; j<sz; j++){
          v = (v<<8) + aSample[y+j];
        }
        if( iVal==7 ){
          double r;
          char *z;
          memcpy(&r, &v, sizeof(r));
          z = sqlite3_mprintf("%s%!.15g", zSep, r);
          printf("%s%#g", zSep, r);
          printf("%s", z);
          sqlite3_free(z);
        }else{
          printf("%s%lld", zSep, v);
        }
      }else if( (iVal&1)==0 ){
        printf("%sx'", zSep);
        for(j=0; j<sz; j++){
          printf("%02x", aSample[y+j]);
Changes to tool/speed-check.sh.
80
81
82
83
84
85
86






87
88
89
90
91
92
93
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99







+
+
+
+
+
+







        ;;
    --lean)
        CC_OPTS="$CC_OPTS $LEAN_OPTS"
        ;;
    --clang)
        CC=clang
        ;;
    --icc)
        CC=/home/drh/intel/bin/icc
        ;;
    --gcc7)
        CC=gcc-7
        ;;
    --heap)
        CC_OPTS="$CC_OPTS -DSQLITE_ENABLE_MEMSYS5"
        shift;
        SPEEDTEST_OPTS="$SPEEDTEST_OPTS --heap $1 64"
        ;;
    --lookaside)
        shift;
103
104
105
106
107
108
109



110
111
112
113
114
115
116
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125







+
+
+







        shift;
        SPEEDTEST_OPTS="$SPEEDTEST_OPTS --mmap $1"
        ;;
    --rtree)
        SPEEDTEST_OPTS="$SPEEDTEST_OPTS --testset rtree"
        CC_OPTS="$CC_OPTS -DSQLITE_ENABLE_RTREE"
        ;;
    --orm)
        SPEEDTEST_OPTS="$SPEEDTEST_OPTS --testset orm"
        ;;
    *)
        CC_OPTS="$CC_OPTS $1"
        ;;
  esac
  shift
done
SPEEDTEST_OPTS="$SPEEDTEST_OPTS --size $SIZE"
139
140
141
142
143
144
145
146

147
148
149
150
151
152
153
154

155
156







-
+

if test $doCachegrind -eq 1; then
  cg_anno.tcl cachegrind.out.* >cout-$NAME.txt
fi
if test $doExplain -eq 1; then
  ./speedtest1 --explain $SPEEDTEST_OPTS | ./sqlite3 >explain-$NAME.txt
fi
if test "$NAME" != "trunk"; then
  fossil test-diff --tk cout-trunk.txt cout-$NAME.txt
  fossil test-diff --tk -c 20 cout-trunk.txt cout-$NAME.txt
fi