/ Check-in [d1fbc6ca]
Login

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

Overview
Comment:An experimental virtual tables for showing the content of internal schema objects.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | schema2-vtab
Files: files | file ages | folders
SHA1:d1fbc6ca18383b97befd597aeb7ff84c6a04d243
User & Date: drh 2013-11-14 15:35:43
Context
2013-11-14
15:35
An experimental virtual tables for showing the content of internal schema objects. Leaf check-in: d1fbc6ca user: drh tags: schema2-vtab
00:09
Simplification to the progress callback check. One branch removed. check-in: 24ef1654 user: drh tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to main.mk.

375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
#
all:	sqlite3.h libsqlite3.a sqlite3$(EXE)

libsqlite3.a:	$(LIBOBJ)
	$(AR) libsqlite3.a $(LIBOBJ)
	$(RANLIB) libsqlite3.a

sqlite3$(EXE):	$(TOP)/src/shell.c libsqlite3.a sqlite3.h
	$(TCCX) $(READLINE_FLAGS) -o sqlite3$(EXE)                  \
		$(TOP)/src/shell.c                                  \
		libsqlite3.a $(LIBREADLINE) $(TLIBS) $(THREADLIB)

mptester$(EXE):	sqlite3.c $(TOP)/mptest/mptest.c
	$(TCCX) -o $@ -I. $(TOP)/mptest/mptest.c sqlite3.c \
		$(TLIBS) $(THREADLIB)

sqlite3.o:	sqlite3.c







|

|







375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
#
all:	sqlite3.h libsqlite3.a sqlite3$(EXE)

libsqlite3.a:	$(LIBOBJ)
	$(AR) libsqlite3.a $(LIBOBJ)
	$(RANLIB) libsqlite3.a

sqlite3$(EXE):	$(TOP)/src/shell.c libsqlite3.a sqlite3.h $(TOP)/src/test_schema2.c
	$(TCCX) $(READLINE_FLAGS) -o sqlite3$(EXE)                  \
		-I$(TOP)/src $(TOP)/src/shell.c                     \
		libsqlite3.a $(LIBREADLINE) $(TLIBS) $(THREADLIB)

mptester$(EXE):	sqlite3.c $(TOP)/mptest/mptest.c
	$(TCCX) -o $@ -I. $(TOP)/mptest/mptest.c sqlite3.c \
		$(TLIBS) $(THREADLIB)

sqlite3.o:	sqlite3.c

Changes to src/shell.c.

1587
1588
1589
1590
1591
1592
1593





1594
1595
1596
1597
1598
1599
1600
....
1609
1610
1611
1612
1613
1614
1615



1616
1617
1618
1619
1620
1621
1622
static char zTimerHelp[] =
  ".timer ON|OFF          Turn the CPU timer measurement on or off\n"
;

/* Forward reference */
static int process_input(struct callback_data *p, FILE *in);






/*
** 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(struct callback_data *p, int keepAlive){
  if( p->db==0 ){
    sqlite3_initialize();
................................................................................
          p->zDbFilename, sqlite3_errmsg(db));
      if( keepAlive ) return;
      exit(1);
    }
#ifndef SQLITE_OMIT_LOAD_EXTENSION
    sqlite3_enable_load_extension(p->db, 1);
#endif



  }
}

/*
** Do C-language style dequoting.
**
**    \t    -> tab







>
>
>
>
>







 







>
>
>







1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
....
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
static char zTimerHelp[] =
  ".timer ON|OFF          Turn the CPU timer measurement on or off\n"
;

/* Forward reference */
static int process_input(struct callback_data *p, FILE *in);

/* Include the source code for various extensions when in debug mode: */
#ifdef SQLITE_DEBUG
# include "test_schema2.c"
#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(struct callback_data *p, int keepAlive){
  if( p->db==0 ){
    sqlite3_initialize();
................................................................................
          p->zDbFilename, sqlite3_errmsg(db));
      if( keepAlive ) return;
      exit(1);
    }
#ifndef SQLITE_OMIT_LOAD_EXTENSION
    sqlite3_enable_load_extension(p->db, 1);
#endif
#ifdef SQLITE_DEBUG
    sqlite3_schema2_register(p->db);
#endif
  }
}

/*
** Do C-language style dequoting.
**
**    \t    -> tab

Added src/test_schema2.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
/*
** 2013-11-14
**
** 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 contains an implementation of the "schema2" virtual table
** for displaying the content of various internal objects associated with
** the parsed schema.
*/

#ifndef SQLITE_AMALGAMATION
# include "sqliteInt.h"
#endif

#ifndef SQLITE_OMIT_VIRTUALTABLE

static const char azSchema2[] = 
  "CREATE TABLE x("
  "  dbname     STRING,"  /* Name of attached database */
  "  tblname    STRING,"  /* Name of the table */
  "  idxname    STRING,"  /* Index name or NULL if not applicable */
  "  cnum       INT,"     /* Column number or NULL if not applicable */
  "  attr       STRING,"  /* Attribute name */
  "  value      STRING "  /* Attribute value */
  ");"
;

typedef struct Schema2Table Schema2Table;
typedef struct Schema2Cursor Schema2Cursor;
typedef struct Schema2Row Schema2Row;

/*
** A single row of the result
*/
struct Schema2Row {
  const char *zDb;        /* Schema name.  db->aDb[].zName */
  const char *zTbl;       /* Table name.  Might be NULL */
  const char *zIdx;       /* Index name.  Might be NULL */
  int iCol;               /* Column number */
  const char *zAttr;      /* Attribute */
  char *zValue;           /* Value of the attribute */
  Schema2Row *pNext;      /* Next row */
};

/*
** A cursor for iterating through internal schema information
*/
struct Schema2Cursor {
  sqlite3_vtab_cursor base;       /* Base class.  Must be first */
  int iRowid;                     /* Current rowid */
  Schema2Row *pAll;               /* All rows */
  Schema2Row *pCurrent;           /* Current row */
  Schema2Row *pLast;              /* Last row */
};

/* 
** The complete Schema2 virtual table
*/
struct Schema2Table {
  sqlite3_vtab base;      /* Base class.   Must be first */
  sqlite3 *db;            /* The database connection that owns this table */
};

/*
** Connect to or create an Schema2  virtual table.
*/
static int schema2Connect(
  sqlite3 *db,
  void *pAux,
  int argc, const char *const*argv,
  sqlite3_vtab **ppVtab,
  char **pzErr
){
  Schema2Table *pTab;

  pTab = (Schema2Table *)sqlite3_malloc(sizeof(Schema2Table));
  memset(pTab, 0, sizeof(Schema2Table));
  pTab->db = db;

  sqlite3_declare_vtab(db, azSchema2);
  *ppVtab = &pTab->base;
  return SQLITE_OK;
}

/*
** Disconnect from or destroy an Schema2 virtual table.
*/
static int schema2Disconnect(sqlite3_vtab *pVtab){
  sqlite3_free(pVtab);
  return SQLITE_OK;
}

/*
** There is no "best-index". This virtual table always does a complete
** scan.
*/
static int schema2BestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
  pIdxInfo->estimatedCost = 10.0;
  return SQLITE_OK;
}

/*
** Open a new Schema2 cursor.
*/
static int schema2Open(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
  Schema2Cursor *pCsr;
  pCsr = (Schema2Cursor *)sqlite3_malloc(sizeof(Schema2Cursor));
  memset(pCsr, 0, sizeof(Schema2Cursor));
  pCsr->base.pVtab = pVTab;
  *ppCursor = (sqlite3_vtab_cursor *)pCsr;
  return SQLITE_OK;
}

static void schema2ResetCsr(Schema2Cursor *pCsr){
  Schema2Row *pRow, *pNextRow;
  for(pRow=pCsr->pAll; pRow; pRow=pNextRow){
    pNextRow = pRow->pNext;
    sqlite3_free(pRow->zValue);
    sqlite3_free(pRow);
  }
  pCsr->pAll = 0;
  pCsr->pCurrent = 0;
  pCsr->pLast = 0;
  pCsr->iRowid = 0;
}

/*
** Close a statvfs cursor.
*/
static int schema2Close(sqlite3_vtab_cursor *pCursor){
  Schema2Cursor *pCsr = (Schema2Cursor *)pCursor;
  schema2ResetCsr(pCsr);
  sqlite3_free(pCsr);
  return SQLITE_OK;
}

/*
** Move a statvfs cursor to the next entry.
*/
static int schema2Next(sqlite3_vtab_cursor *pCursor){
  Schema2Cursor *pCsr = (Schema2Cursor *)pCursor;
  if( pCsr->pCurrent==0 ){
    pCsr->pCurrent = pCsr->pAll;
  }else{
    pCsr->pCurrent = pCsr->pCurrent->pNext;
  }
  pCsr->iRowid++;
  return SQLITE_OK;
}

static int schema2Eof(sqlite3_vtab_cursor *pCursor){
  Schema2Cursor *pCsr = (Schema2Cursor *)pCursor;
  return pCsr->pCurrent==0 && pCsr->iRowid>0;
}

/* Append a single to the cursor pCsr */
static void schema2AppendRow(
  Schema2Cursor *pCsr,
  const char *zDb,
  const char *zTbl,
  const char *zIdx,
  int iCol,
  const char *zAttr,
  const char *zValue,
  ...
){
  Schema2Row *pRow = sqlite3_malloc( sizeof(*pRow) );
  va_list ap;
  if( pRow==0 );
  pRow->zDb = zDb;
  pRow->zTbl = zTbl;
  pRow->zIdx = zIdx;
  pRow->iCol = iCol;
  pRow->zAttr = zAttr;
  va_start(ap, zValue);
  pRow->zValue = sqlite3_vmprintf(zValue, ap);
  va_end(ap);
  if( pCsr->pLast==0 ){
    pCsr->pAll = pRow;
  }else{
    pCsr->pLast->pNext = pRow;
  }
  pCsr->pLast = pRow;
}

/* Append rows for index pIdx of table pTab which is part of the zDb schema */
static void schema2AppendIndex(
  Schema2Cursor *pCsr,
  const char *zDb,
  Table *pTab,
  Index *pIdx
){
  const char *zTbl = pTab->zName;
  const char *zIdx = pIdx->zName;
  int i;
  schema2AppendRow(pCsr,zDb,zTbl,zIdx,-1,"zColAff","%s",pIdx->zColAff);
  schema2AppendRow(pCsr,zDb,zTbl,zIdx,-1,"tnum","%d",pIdx->tnum);
  schema2AppendRow(pCsr,zDb,zTbl,zIdx,-1,"szIdxRow","%d",pIdx->szIdxRow);
  schema2AppendRow(pCsr,zDb,zTbl,zIdx,-1,"nKeyCol","%d",pIdx->nKeyCol);
  schema2AppendRow(pCsr,zDb,zTbl,zIdx,-1,"nColumn","%d",pIdx->nColumn);
  schema2AppendRow(pCsr,zDb,zTbl,zIdx,-1,"onError","%d",pIdx->onError);
  schema2AppendRow(pCsr,zDb,zTbl,zIdx,-1,"autoIndex","%d",pIdx->autoIndex);
  schema2AppendRow(pCsr,zDb,zTbl,zIdx,-1,"bUnordered","%d",pIdx->bUnordered);
  schema2AppendRow(pCsr,zDb,zTbl,zIdx,-1,"uniqNotNull","%d",pIdx->uniqNotNull);
  schema2AppendRow(pCsr,zDb,zTbl,zIdx,-1,"isResized","%d",pIdx->isResized);
  schema2AppendRow(pCsr,zDb,zTbl,zIdx,-1,"isCovering","%d",pIdx->isCovering);
  for(i=0; i<pIdx->nColumn; i++){
    i16 x = pIdx->aiColumn[i];
    schema2AppendRow(pCsr,zDb,zTbl,zIdx,i,"zName","%s",
                     x>=0?pTab->aCol[x].zName:"rowid");
    schema2AppendRow(pCsr,zDb,zTbl,zIdx,i,"aiRowEst","%lld",
                     (sqlite3_int64)pIdx->aiRowEst[i]);
  }
}

/* Append rows for table pTab which is part of the zDb schema */
static void schema2AppendTable(
  Schema2Cursor *pCsr,
  const char *zDb,
  Table *pTab
){
  const char *zTbl = pTab->zName;
  int i;
  Index *pIdx;
  schema2AppendRow(pCsr,zDb,zTbl,0,-1,"zColAff","%s",pTab->zColAff);
  schema2AppendRow(pCsr,zDb,zTbl,0,-1,"nRowEst",
                   "%lld",(sqlite3_int64)pTab->nRowEst);
  schema2AppendRow(pCsr,zDb,zTbl,0,-1,"tnum","%d",pTab->tnum);
  schema2AppendRow(pCsr,zDb,zTbl,0,-1,"iPKey","%d",pTab->iPKey);
  schema2AppendRow(pCsr,zDb,zTbl,0,-1,"nCol","%d",pTab->nCol);
  schema2AppendRow(pCsr,zDb,zTbl,0,-1,"nRef","%d",pTab->nRef);
  schema2AppendRow(pCsr,zDb,zTbl,0,-1,"szTabRow","%d",pTab->szTabRow);
  schema2AppendRow(pCsr,zDb,zTbl,0,-1,"tabFlags","%d",pTab->tabFlags);
  for(i=0; i<pTab->nCol; i++){
    const Column *p = pTab->aCol + i;
    schema2AppendRow(pCsr,zDb,zTbl,0,i,"zName","%s",p->zName);
    schema2AppendRow(pCsr,zDb,zTbl,0,i,"zDflt","%s",p->zDflt);
    schema2AppendRow(pCsr,zDb,zTbl,0,i,"zType","%s",p->zType);
    schema2AppendRow(pCsr,zDb,zTbl,0,i,"zColl","%s",p->zColl);
    schema2AppendRow(pCsr,zDb,zTbl,0,i,"notNull","%d",p->notNull);
    schema2AppendRow(pCsr,zDb,zTbl,0,i,"affinity","%c",p->affinity);
    schema2AppendRow(pCsr,zDb,zTbl,0,i,"szEst","%d",p->szEst);
    schema2AppendRow(pCsr,zDb,zTbl,0,i,"colFlags","%04x",p->colFlags);
  }
  for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
    schema2AppendIndex(pCsr, zDb, pTab, pIdx);
  }
}


/* Append rows for schema object pSchema */
static void schema2AppendSchema(
  Schema2Cursor *pCsr,
  const char *zDb,
  Schema *pSchema
){
  HashElem *i;
  schema2AppendRow(pCsr,zDb,0,0,-1,"generation","%d", pSchema->iGeneration);
  schema2AppendRow(pCsr,zDb,0,0,-1,"file_format","%d", pSchema->file_format);
  schema2AppendRow(pCsr,zDb,0,0,-1,"enc","%d", pSchema->enc);
  schema2AppendRow(pCsr,zDb,0,0,-1,"flags","%d", pSchema->flags);
  schema2AppendRow(pCsr,zDb,0,0,-1,"cache_size","%d", pSchema->cache_size);
  for(i=sqliteHashFirst(&pSchema->tblHash); i; i=sqliteHashNext(i)){
    schema2AppendTable(pCsr, zDb, (Table*)sqliteHashData(i));
  }
}


static int schema2Filter(
  sqlite3_vtab_cursor *pCursor, 
  int idxNum, const char *idxStr,
  int argc, sqlite3_value **argv
){
  int iDb;
  Schema2Cursor *pCsr = (Schema2Cursor*)pCursor;
  Schema2Table *pTab = (Schema2Table*)(pCursor->pVtab);
  sqlite3 *db = pTab->db;
  schema2ResetCsr(pCsr);
  for(iDb=0; iDb<db->nDb; iDb++){
    const char *zDb = db->aDb[iDb].zName;
    Schema *pSchema = db->aDb[iDb].pSchema;
    schema2AppendRow(pCsr,zDb,0,0,-1,"safety_level",
                     "%d", db->aDb[iDb].safety_level);
    schema2AppendSchema(pCsr, zDb, pSchema);
  }
  return schema2Next(pCursor);
}

static int schema2Column(
  sqlite3_vtab_cursor *pCursor, 
  sqlite3_context *ctx, 
  int i
){
  Schema2Cursor *pCsr = (Schema2Cursor *)pCursor;
  Schema2Row *pRow = pCsr->pCurrent;
  if( pRow==0 ) return SQLITE_OK;
  switch( i ){
    case 0:            /* dbname */
      sqlite3_result_text(ctx, pRow->zDb, -1, SQLITE_STATIC);
      break;
    case 1:            /* tblname */
      if( pRow->zTbl ) sqlite3_result_text(ctx, pRow->zTbl, -1, SQLITE_STATIC);
      break;
    case 2:            /* idxname */
      if( pRow->zIdx ) sqlite3_result_text(ctx, pRow->zIdx, -1, SQLITE_STATIC);
      break;
    case 3:            /* cnum */
      if( pRow->iCol>=0 ) sqlite3_result_int(ctx, pRow->iCol);
      break;
    case 4:            /* attr */
      sqlite3_result_text(ctx, pRow->zAttr, -1, SQLITE_STATIC);
      break;
    case 5:            /* value */
      if( pRow->zValue ) sqlite3_result_text(ctx,pRow->zValue,-1,SQLITE_STATIC);
      break;
  }
  return SQLITE_OK;
}

static int schema2Rowid(sqlite3_vtab_cursor *pCursor, sqlite_int64 *pRowid){
  Schema2Cursor *pCsr = (Schema2Cursor *)pCursor;
  *pRowid = pCsr->iRowid;
  return SQLITE_OK;
}

int sqlite3_schema2_register(sqlite3 *db){
  static sqlite3_module schema2_module = {
    0,                            /* iVersion */
    schema2Connect,               /* xCreate */
    schema2Connect,               /* xConnect */
    schema2BestIndex,             /* xBestIndex */
    schema2Disconnect,            /* xDisconnect */
    schema2Disconnect,            /* xDestroy */
    schema2Open,                  /* xOpen - open a cursor */
    schema2Close,                 /* xClose - close a cursor */
    schema2Filter,                /* xFilter - configure scan constraints */
    schema2Next,                  /* xNext - advance a cursor */
    schema2Eof,                   /* xEof - check for end of scan */
    schema2Column,                /* xColumn - read data */
    schema2Rowid,                 /* xRowid - read data */
    0,                            /* xUpdate */
    0,                            /* xBegin */
    0,                            /* xSync */
    0,                            /* xCommit */
    0,                            /* xRollback */
    0,                            /* xFindMethod */
    0,                            /* xRename */
  };
  sqlite3_create_module(db, "schema2", &schema2_module, 0);
  return SQLITE_OK;
}

#endif

#if defined(SQLITE_TEST) || TCLSH==2
#include <tcl.h>

static int test_schema2(
  void *clientData,
  Tcl_Interp *interp,
  int objc,
  Tcl_Obj *CONST objv[]
){
#ifdef SQLITE_OMIT_VIRTUALTABLE
  Tcl_AppendResult(interp, "schema2 not available because of "
                           "SQLITE_OMIT_VIRTUALTABLE", (void*)0);
  return TCL_ERROR;
#else
  struct SqliteDb { sqlite3 *db; };
  char *zDb;
  Tcl_CmdInfo cmdInfo;

  if( objc!=2 ){
    Tcl_WrongNumArgs(interp, 1, objv, "DB");
    return TCL_ERROR;
  }

  zDb = Tcl_GetString(objv[1]);
  if( Tcl_GetCommandInfo(interp, zDb, &cmdInfo) ){
    sqlite3* db = ((struct SqliteDb*)cmdInfo.objClientData)->db;
    sqlite3_schema2_register(db);
  }
  return TCL_OK;
#endif
}

int SqlitetestSchema2_Init(Tcl_Interp *interp){
  Tcl_CreateObjCommand(interp, "register_schema2_vtab", test_schema2, 0, 0);
  return TCL_OK;
}
#endif /* if defined(SQLITE_TEST) || TCLSH==2 */