1012 lines
35 KiB
C
1012 lines
35 KiB
C
/*
|
|
** 2003 April 6
|
|
**
|
|
** 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 used to implement the PRAGMA command.
|
|
**
|
|
** $Id$
|
|
*/
|
|
#include "sqliteInt.h"
|
|
#include "os.h"
|
|
#include <ctype.h>
|
|
|
|
/* Ignore this whole file if pragmas are disabled
|
|
*/
|
|
#if !defined(SQLITE_OMIT_PRAGMA) && !defined(SQLITE_OMIT_PARSER)
|
|
|
|
#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
|
|
# include "pager.h"
|
|
# include "btree.h"
|
|
#endif
|
|
|
|
/*
|
|
** Interpret the given string as a safety level. Return 0 for OFF,
|
|
** 1 for ON or NORMAL and 2 for FULL. Return 1 for an empty or
|
|
** unrecognized string argument.
|
|
**
|
|
** Note that the values returned are one less that the values that
|
|
** should be passed into sqlite3BtreeSetSafetyLevel(). The is done
|
|
** to support legacy SQL code. The safety level used to be boolean
|
|
** and older scripts may have used numbers 0 for OFF and 1 for ON.
|
|
*/
|
|
static int getSafetyLevel(const char *z){
|
|
/* 123456789 123456789 */
|
|
static const char zText[] = "onoffalseyestruefull";
|
|
static const u8 iOffset[] = {0, 1, 2, 4, 9, 12, 16};
|
|
static const u8 iLength[] = {2, 2, 3, 5, 3, 4, 4};
|
|
static const u8 iValue[] = {1, 0, 0, 0, 1, 1, 2};
|
|
int i, n;
|
|
if( isdigit(*z) ){
|
|
return atoi(z);
|
|
}
|
|
n = strlen(z);
|
|
for(i=0; i<sizeof(iLength); i++){
|
|
if( iLength[i]==n && sqlite3StrNICmp(&zText[iOffset[i]],z,n)==0 ){
|
|
return iValue[i];
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
** Interpret the given string as a boolean value.
|
|
*/
|
|
static int getBoolean(const char *z){
|
|
return getSafetyLevel(z)&1;
|
|
}
|
|
|
|
#ifndef SQLITE_OMIT_PAGER_PRAGMAS
|
|
/*
|
|
** Interpret the given string as a temp db location. Return 1 for file
|
|
** backed temporary databases, 2 for the Red-Black tree in memory database
|
|
** and 0 to use the compile-time default.
|
|
*/
|
|
static int getTempStore(const char *z){
|
|
if( z[0]>='0' && z[0]<='2' ){
|
|
return z[0] - '0';
|
|
}else if( sqlite3StrICmp(z, "file")==0 ){
|
|
return 1;
|
|
}else if( sqlite3StrICmp(z, "memory")==0 ){
|
|
return 2;
|
|
}else{
|
|
return 0;
|
|
}
|
|
}
|
|
#endif /* SQLITE_PAGER_PRAGMAS */
|
|
|
|
#ifndef SQLITE_OMIT_PAGER_PRAGMAS
|
|
/*
|
|
** Invalidate temp storage, either when the temp storage is changed
|
|
** from default, or when 'file' and the temp_store_directory has changed
|
|
*/
|
|
static int invalidateTempStorage(Parse *pParse){
|
|
sqlite3 *db = pParse->db;
|
|
if( db->aDb[1].pBt!=0 ){
|
|
if( db->flags & SQLITE_InTrans ){
|
|
sqlite3ErrorMsg(pParse, "temporary storage cannot be changed "
|
|
"from within a transaction");
|
|
return SQLITE_ERROR;
|
|
}
|
|
sqlite3BtreeClose(db->aDb[1].pBt);
|
|
db->aDb[1].pBt = 0;
|
|
sqlite3ResetInternalSchema(db, 0);
|
|
}
|
|
return SQLITE_OK;
|
|
}
|
|
#endif /* SQLITE_PAGER_PRAGMAS */
|
|
|
|
#ifndef SQLITE_OMIT_PAGER_PRAGMAS
|
|
/*
|
|
** If the TEMP database is open, close it and mark the database schema
|
|
** as needing reloading. This must be done when using the TEMP_STORE
|
|
** or DEFAULT_TEMP_STORE pragmas.
|
|
*/
|
|
static int changeTempStorage(Parse *pParse, const char *zStorageType){
|
|
int ts = getTempStore(zStorageType);
|
|
sqlite3 *db = pParse->db;
|
|
if( db->temp_store==ts ) return SQLITE_OK;
|
|
if( invalidateTempStorage( pParse ) != SQLITE_OK ){
|
|
return SQLITE_ERROR;
|
|
}
|
|
db->temp_store = ts;
|
|
return SQLITE_OK;
|
|
}
|
|
#endif /* SQLITE_PAGER_PRAGMAS */
|
|
|
|
/*
|
|
** Generate code to return a single integer value.
|
|
*/
|
|
static void returnSingleInt(Parse *pParse, const char *zLabel, int value){
|
|
Vdbe *v = sqlite3GetVdbe(pParse);
|
|
sqlite3VdbeAddOp(v, OP_Integer, value, 0);
|
|
if( pParse->explain==0 ){
|
|
sqlite3VdbeSetNumCols(v, 1);
|
|
sqlite3VdbeSetColName(v, 0, COLNAME_NAME, zLabel, P3_STATIC);
|
|
}
|
|
sqlite3VdbeAddOp(v, OP_Callback, 1, 0);
|
|
}
|
|
|
|
#ifndef SQLITE_OMIT_FLAG_PRAGMAS
|
|
/*
|
|
** Check to see if zRight and zLeft refer to a pragma that queries
|
|
** or changes one of the flags in db->flags. Return 1 if so and 0 if not.
|
|
** Also, implement the pragma.
|
|
*/
|
|
static int flagPragma(Parse *pParse, const char *zLeft, const char *zRight){
|
|
static const struct sPragmaType {
|
|
const char *zName; /* Name of the pragma */
|
|
int mask; /* Mask for the db->flags value */
|
|
} aPragma[] = {
|
|
{ "vdbe_trace", SQLITE_VdbeTrace },
|
|
{ "sql_trace", SQLITE_SqlTrace },
|
|
{ "vdbe_listing", SQLITE_VdbeListing },
|
|
{ "full_column_names", SQLITE_FullColNames },
|
|
{ "short_column_names", SQLITE_ShortColNames },
|
|
{ "count_changes", SQLITE_CountRows },
|
|
{ "empty_result_callbacks", SQLITE_NullCallback },
|
|
{ "legacy_file_format", SQLITE_LegacyFileFmt },
|
|
{ "fullfsync", SQLITE_FullFSync },
|
|
#ifndef SQLITE_OMIT_CHECK
|
|
{ "ignore_check_constraints", SQLITE_IgnoreChecks },
|
|
#endif
|
|
/* The following is VERY experimental */
|
|
{ "writable_schema", SQLITE_WriteSchema },
|
|
{ "omit_readlock", SQLITE_NoReadlock },
|
|
|
|
/* TODO: Maybe it shouldn't be possible to change the ReadUncommitted
|
|
** flag if there are any active statements. */
|
|
{ "read_uncommitted", SQLITE_ReadUncommitted },
|
|
};
|
|
int i;
|
|
const struct sPragmaType *p;
|
|
for(i=0, p=aPragma; i<sizeof(aPragma)/sizeof(aPragma[0]); i++, p++){
|
|
if( sqlite3StrICmp(zLeft, p->zName)==0 ){
|
|
sqlite3 *db = pParse->db;
|
|
Vdbe *v;
|
|
v = sqlite3GetVdbe(pParse);
|
|
if( v ){
|
|
if( zRight==0 ){
|
|
returnSingleInt(pParse, p->zName, (db->flags & p->mask)!=0 );
|
|
}else{
|
|
if( getBoolean(zRight) ){
|
|
db->flags |= p->mask;
|
|
}else{
|
|
db->flags &= ~p->mask;
|
|
}
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
#endif /* SQLITE_OMIT_FLAG_PRAGMAS */
|
|
|
|
/*
|
|
** Process a pragma statement.
|
|
**
|
|
** Pragmas are of this form:
|
|
**
|
|
** PRAGMA [database.]id [= value]
|
|
**
|
|
** The identifier might also be a string. The value is a string, and
|
|
** identifier, or a number. If minusFlag is true, then the value is
|
|
** a number that was preceded by a minus sign.
|
|
**
|
|
** If the left side is "database.id" then pId1 is the database name
|
|
** and pId2 is the id. If the left side is just "id" then pId1 is the
|
|
** id and pId2 is any empty string.
|
|
*/
|
|
void sqlite3Pragma(
|
|
Parse *pParse,
|
|
Token *pId1, /* First part of [database.]id field */
|
|
Token *pId2, /* Second part of [database.]id field, or NULL */
|
|
Token *pValue, /* Token for <value>, or NULL */
|
|
int minusFlag /* True if a '-' sign preceded <value> */
|
|
){
|
|
char *zLeft = 0; /* Nul-terminated UTF-8 string <id> */
|
|
char *zRight = 0; /* Nul-terminated UTF-8 string <value>, or NULL */
|
|
const char *zDb = 0; /* The database name */
|
|
Token *pId; /* Pointer to <id> token */
|
|
int iDb; /* Database index for <database> */
|
|
sqlite3 *db = pParse->db;
|
|
Db *pDb;
|
|
Vdbe *v = sqlite3GetVdbe(pParse);
|
|
if( v==0 ) return;
|
|
|
|
/* Interpret the [database.] part of the pragma statement. iDb is the
|
|
** index of the database this pragma is being applied to in db.aDb[]. */
|
|
iDb = sqlite3TwoPartName(pParse, pId1, pId2, &pId);
|
|
if( iDb<0 ) return;
|
|
pDb = &db->aDb[iDb];
|
|
|
|
/* If the temp database has been explicitly named as part of the
|
|
** pragma, make sure it is open.
|
|
*/
|
|
if( iDb==1 && sqlite3OpenTempDatabase(pParse) ){
|
|
return;
|
|
}
|
|
|
|
zLeft = sqlite3NameFromToken(pId);
|
|
if( !zLeft ) return;
|
|
if( minusFlag ){
|
|
zRight = sqlite3MPrintf("-%T", pValue);
|
|
}else{
|
|
zRight = sqlite3NameFromToken(pValue);
|
|
}
|
|
|
|
zDb = ((iDb>0)?pDb->zName:0);
|
|
if( sqlite3AuthCheck(pParse, SQLITE_PRAGMA, zLeft, zRight, zDb) ){
|
|
goto pragma_out;
|
|
}
|
|
|
|
#ifndef SQLITE_OMIT_PAGER_PRAGMAS
|
|
/*
|
|
** PRAGMA [database.]default_cache_size
|
|
** PRAGMA [database.]default_cache_size=N
|
|
**
|
|
** The first form reports the current persistent setting for the
|
|
** page cache size. The value returned is the maximum number of
|
|
** pages in the page cache. The second form sets both the current
|
|
** page cache size value and the persistent page cache size value
|
|
** stored in the database file.
|
|
**
|
|
** The default cache size is stored in meta-value 2 of page 1 of the
|
|
** database file. The cache size is actually the absolute value of
|
|
** this memory location. The sign of meta-value 2 determines the
|
|
** synchronous setting. A negative value means synchronous is off
|
|
** and a positive value means synchronous is on.
|
|
*/
|
|
if( sqlite3StrICmp(zLeft,"default_cache_size")==0 ){
|
|
static const VdbeOpList getCacheSize[] = {
|
|
{ OP_ReadCookie, 0, 2, 0}, /* 0 */
|
|
{ OP_AbsValue, 0, 0, 0},
|
|
{ OP_Dup, 0, 0, 0},
|
|
{ OP_Integer, 0, 0, 0},
|
|
{ OP_Ne, 0, 6, 0},
|
|
{ OP_Integer, 0, 0, 0}, /* 5 */
|
|
{ OP_Callback, 1, 0, 0},
|
|
};
|
|
int addr;
|
|
if( sqlite3ReadSchema(pParse) ) goto pragma_out;
|
|
if( !zRight ){
|
|
sqlite3VdbeSetNumCols(v, 1);
|
|
sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "cache_size", P3_STATIC);
|
|
addr = sqlite3VdbeAddOpList(v, ArraySize(getCacheSize), getCacheSize);
|
|
sqlite3VdbeChangeP1(v, addr, iDb);
|
|
sqlite3VdbeChangeP1(v, addr+5, MAX_PAGES);
|
|
}else{
|
|
int size = atoi(zRight);
|
|
if( size<0 ) size = -size;
|
|
sqlite3BeginWriteOperation(pParse, 0, iDb);
|
|
sqlite3VdbeAddOp(v, OP_Integer, size, 0);
|
|
sqlite3VdbeAddOp(v, OP_ReadCookie, iDb, 2);
|
|
addr = sqlite3VdbeAddOp(v, OP_Integer, 0, 0);
|
|
sqlite3VdbeAddOp(v, OP_Ge, 0, addr+3);
|
|
sqlite3VdbeAddOp(v, OP_Negative, 0, 0);
|
|
sqlite3VdbeAddOp(v, OP_SetCookie, iDb, 2);
|
|
pDb->pSchema->cache_size = size;
|
|
sqlite3BtreeSetCacheSize(pDb->pBt, pDb->pSchema->cache_size);
|
|
}
|
|
}else
|
|
|
|
/*
|
|
** PRAGMA [database.]page_size
|
|
** PRAGMA [database.]page_size=N
|
|
**
|
|
** The first form reports the current setting for the
|
|
** database page size in bytes. The second form sets the
|
|
** database page size value. The value can only be set if
|
|
** the database has not yet been created.
|
|
*/
|
|
if( sqlite3StrICmp(zLeft,"page_size")==0 ){
|
|
Btree *pBt = pDb->pBt;
|
|
if( !zRight ){
|
|
int size = pBt ? sqlite3BtreeGetPageSize(pBt) : 0;
|
|
returnSingleInt(pParse, "page_size", size);
|
|
}else{
|
|
sqlite3BtreeSetPageSize(pBt, atoi(zRight), -1);
|
|
}
|
|
}else
|
|
#endif /* SQLITE_OMIT_PAGER_PRAGMAS */
|
|
|
|
/*
|
|
** PRAGMA [database.]auto_vacuum
|
|
** PRAGMA [database.]auto_vacuum=N
|
|
**
|
|
** Get or set the (boolean) value of the database 'auto-vacuum' parameter.
|
|
*/
|
|
#ifndef SQLITE_OMIT_AUTOVACUUM
|
|
if( sqlite3StrICmp(zLeft,"auto_vacuum")==0 ){
|
|
Btree *pBt = pDb->pBt;
|
|
if( !zRight ){
|
|
int auto_vacuum =
|
|
pBt ? sqlite3BtreeGetAutoVacuum(pBt) : SQLITE_DEFAULT_AUTOVACUUM;
|
|
returnSingleInt(pParse, "auto_vacuum", auto_vacuum);
|
|
}else{
|
|
sqlite3BtreeSetAutoVacuum(pBt, getBoolean(zRight));
|
|
}
|
|
}else
|
|
#endif
|
|
|
|
#ifndef SQLITE_OMIT_PAGER_PRAGMAS
|
|
/*
|
|
** PRAGMA [database.]cache_size
|
|
** PRAGMA [database.]cache_size=N
|
|
**
|
|
** The first form reports the current local setting for the
|
|
** page cache size. The local setting can be different from
|
|
** the persistent cache size value that is stored in the database
|
|
** file itself. The value returned is the maximum number of
|
|
** pages in the page cache. The second form sets the local
|
|
** page cache size value. It does not change the persistent
|
|
** cache size stored on the disk so the cache size will revert
|
|
** to its default value when the database is closed and reopened.
|
|
** N should be a positive integer.
|
|
*/
|
|
if( sqlite3StrICmp(zLeft,"cache_size")==0 ){
|
|
if( sqlite3ReadSchema(pParse) ) goto pragma_out;
|
|
if( !zRight ){
|
|
returnSingleInt(pParse, "cache_size", pDb->pSchema->cache_size);
|
|
}else{
|
|
int size = atoi(zRight);
|
|
if( size<0 ) size = -size;
|
|
pDb->pSchema->cache_size = size;
|
|
sqlite3BtreeSetCacheSize(pDb->pBt, pDb->pSchema->cache_size);
|
|
}
|
|
}else
|
|
|
|
/*
|
|
** PRAGMA temp_store
|
|
** PRAGMA temp_store = "default"|"memory"|"file"
|
|
**
|
|
** Return or set the local value of the temp_store flag. Changing
|
|
** the local value does not make changes to the disk file and the default
|
|
** value will be restored the next time the database is opened.
|
|
**
|
|
** Note that it is possible for the library compile-time options to
|
|
** override this setting
|
|
*/
|
|
if( sqlite3StrICmp(zLeft, "temp_store")==0 ){
|
|
if( !zRight ){
|
|
returnSingleInt(pParse, "temp_store", db->temp_store);
|
|
}else{
|
|
changeTempStorage(pParse, zRight);
|
|
}
|
|
}else
|
|
|
|
/*
|
|
** PRAGMA temp_store_directory
|
|
** PRAGMA temp_store_directory = ""|"directory_name"
|
|
**
|
|
** Return or set the local value of the temp_store_directory flag. Changing
|
|
** the value sets a specific directory to be used for temporary files.
|
|
** Setting to a null string reverts to the default temporary directory search.
|
|
** If temporary directory is changed, then invalidateTempStorage.
|
|
**
|
|
*/
|
|
if( sqlite3StrICmp(zLeft, "temp_store_directory")==0 ){
|
|
if( !zRight ){
|
|
if( sqlite3_temp_directory ){
|
|
sqlite3VdbeSetNumCols(v, 1);
|
|
sqlite3VdbeSetColName(v, 0, COLNAME_NAME,
|
|
"temp_store_directory", P3_STATIC);
|
|
sqlite3VdbeOp3(v, OP_String8, 0, 0, sqlite3_temp_directory, 0);
|
|
sqlite3VdbeAddOp(v, OP_Callback, 1, 0);
|
|
}
|
|
}else{
|
|
if( zRight[0] && !sqlite3OsIsDirWritable(zRight) ){
|
|
sqlite3ErrorMsg(pParse, "not a writable directory");
|
|
goto pragma_out;
|
|
}
|
|
if( TEMP_STORE==0
|
|
|| (TEMP_STORE==1 && db->temp_store<=1)
|
|
|| (TEMP_STORE==2 && db->temp_store==1)
|
|
){
|
|
invalidateTempStorage(pParse);
|
|
}
|
|
sqliteFree(sqlite3_temp_directory);
|
|
if( zRight[0] ){
|
|
sqlite3_temp_directory = zRight;
|
|
zRight = 0;
|
|
}else{
|
|
sqlite3_temp_directory = 0;
|
|
}
|
|
}
|
|
}else
|
|
|
|
/*
|
|
** PRAGMA [database.]synchronous
|
|
** PRAGMA [database.]synchronous=OFF|ON|NORMAL|FULL
|
|
**
|
|
** Return or set the local value of the synchronous flag. Changing
|
|
** the local value does not make changes to the disk file and the
|
|
** default value will be restored the next time the database is
|
|
** opened.
|
|
*/
|
|
if( sqlite3StrICmp(zLeft,"synchronous")==0 ){
|
|
if( sqlite3ReadSchema(pParse) ) goto pragma_out;
|
|
if( !zRight ){
|
|
returnSingleInt(pParse, "synchronous", pDb->safety_level-1);
|
|
}else{
|
|
if( !db->autoCommit ){
|
|
sqlite3ErrorMsg(pParse,
|
|
"Safety level may not be changed inside a transaction");
|
|
}else{
|
|
pDb->safety_level = getSafetyLevel(zRight)+1;
|
|
}
|
|
}
|
|
}else
|
|
#endif /* SQLITE_OMIT_PAGER_PRAGMAS */
|
|
|
|
#ifndef SQLITE_OMIT_FLAG_PRAGMAS
|
|
if( flagPragma(pParse, zLeft, zRight) ){
|
|
/* The flagPragma() subroutine also generates any necessary code
|
|
** there is nothing more to do here */
|
|
}else
|
|
#endif /* SQLITE_OMIT_FLAG_PRAGMAS */
|
|
|
|
#ifndef SQLITE_OMIT_SCHEMA_PRAGMAS
|
|
/*
|
|
** PRAGMA table_info(<table>)
|
|
**
|
|
** Return a single row for each column of the named table. The columns of
|
|
** the returned data set are:
|
|
**
|
|
** cid: Column id (numbered from left to right, starting at 0)
|
|
** name: Column name
|
|
** type: Column declaration type.
|
|
** notnull: True if 'NOT NULL' is part of column declaration
|
|
** dflt_value: The default value for the column, if any.
|
|
*/
|
|
if( sqlite3StrICmp(zLeft, "table_info")==0 && zRight ){
|
|
Table *pTab;
|
|
if( sqlite3ReadSchema(pParse) ) goto pragma_out;
|
|
pTab = sqlite3FindTable(db, zRight, zDb);
|
|
if( pTab ){
|
|
int i;
|
|
Column *pCol;
|
|
sqlite3VdbeSetNumCols(v, 6);
|
|
sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "cid", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "type", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "notnull", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 4, COLNAME_NAME, "dflt_value", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 5, COLNAME_NAME, "pk", P3_STATIC);
|
|
sqlite3ViewGetColumnNames(pParse, pTab);
|
|
for(i=0, pCol=pTab->aCol; i<pTab->nCol; i++, pCol++){
|
|
const Token *pDflt;
|
|
sqlite3VdbeAddOp(v, OP_Integer, i, 0);
|
|
sqlite3VdbeOp3(v, OP_String8, 0, 0, pCol->zName, 0);
|
|
sqlite3VdbeOp3(v, OP_String8, 0, 0,
|
|
pCol->zType ? pCol->zType : "", 0);
|
|
sqlite3VdbeAddOp(v, OP_Integer, pCol->notNull, 0);
|
|
if( pCol->pDflt && (pDflt = &pCol->pDflt->span)->z ){
|
|
sqlite3VdbeOp3(v, OP_String8, 0, 0, (char*)pDflt->z, pDflt->n);
|
|
}else{
|
|
sqlite3VdbeAddOp(v, OP_Null, 0, 0);
|
|
}
|
|
sqlite3VdbeAddOp(v, OP_Integer, pCol->isPrimKey, 0);
|
|
sqlite3VdbeAddOp(v, OP_Callback, 6, 0);
|
|
}
|
|
}
|
|
}else
|
|
|
|
if( sqlite3StrICmp(zLeft, "index_info")==0 && zRight ){
|
|
Index *pIdx;
|
|
Table *pTab;
|
|
if( sqlite3ReadSchema(pParse) ) goto pragma_out;
|
|
pIdx = sqlite3FindIndex(db, zRight, zDb);
|
|
if( pIdx ){
|
|
int i;
|
|
pTab = pIdx->pTable;
|
|
sqlite3VdbeSetNumCols(v, 3);
|
|
sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seqno", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "cid", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "name", P3_STATIC);
|
|
for(i=0; i<pIdx->nColumn; i++){
|
|
int cnum = pIdx->aiColumn[i];
|
|
sqlite3VdbeAddOp(v, OP_Integer, i, 0);
|
|
sqlite3VdbeAddOp(v, OP_Integer, cnum, 0);
|
|
assert( pTab->nCol>cnum );
|
|
sqlite3VdbeOp3(v, OP_String8, 0, 0, pTab->aCol[cnum].zName, 0);
|
|
sqlite3VdbeAddOp(v, OP_Callback, 3, 0);
|
|
}
|
|
}
|
|
}else
|
|
|
|
if( sqlite3StrICmp(zLeft, "index_list")==0 && zRight ){
|
|
Index *pIdx;
|
|
Table *pTab;
|
|
if( sqlite3ReadSchema(pParse) ) goto pragma_out;
|
|
pTab = sqlite3FindTable(db, zRight, zDb);
|
|
if( pTab ){
|
|
v = sqlite3GetVdbe(pParse);
|
|
pIdx = pTab->pIndex;
|
|
if( pIdx ){
|
|
int i = 0;
|
|
sqlite3VdbeSetNumCols(v, 3);
|
|
sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seq", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "unique", P3_STATIC);
|
|
while(pIdx){
|
|
sqlite3VdbeAddOp(v, OP_Integer, i, 0);
|
|
sqlite3VdbeOp3(v, OP_String8, 0, 0, pIdx->zName, 0);
|
|
sqlite3VdbeAddOp(v, OP_Integer, pIdx->onError!=OE_None, 0);
|
|
sqlite3VdbeAddOp(v, OP_Callback, 3, 0);
|
|
++i;
|
|
pIdx = pIdx->pNext;
|
|
}
|
|
}
|
|
}
|
|
}else
|
|
|
|
if( sqlite3StrICmp(zLeft, "database_list")==0 ){
|
|
int i;
|
|
if( sqlite3ReadSchema(pParse) ) goto pragma_out;
|
|
sqlite3VdbeSetNumCols(v, 3);
|
|
sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seq", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "file", P3_STATIC);
|
|
for(i=0; i<db->nDb; i++){
|
|
if( db->aDb[i].pBt==0 ) continue;
|
|
assert( db->aDb[i].zName!=0 );
|
|
sqlite3VdbeAddOp(v, OP_Integer, i, 0);
|
|
sqlite3VdbeOp3(v, OP_String8, 0, 0, db->aDb[i].zName, 0);
|
|
sqlite3VdbeOp3(v, OP_String8, 0, 0,
|
|
sqlite3BtreeGetFilename(db->aDb[i].pBt), 0);
|
|
sqlite3VdbeAddOp(v, OP_Callback, 3, 0);
|
|
}
|
|
}else
|
|
|
|
if( sqlite3StrICmp(zLeft, "collation_list")==0 ){
|
|
int i = 0;
|
|
HashElem *p;
|
|
sqlite3VdbeSetNumCols(v, 2);
|
|
sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seq", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", P3_STATIC);
|
|
for(p=sqliteHashFirst(&db->aCollSeq); p; p=sqliteHashNext(p)){
|
|
CollSeq *pColl = (CollSeq *)sqliteHashData(p);
|
|
sqlite3VdbeAddOp(v, OP_Integer, i++, 0);
|
|
sqlite3VdbeOp3(v, OP_String8, 0, 0, pColl->zName, 0);
|
|
sqlite3VdbeAddOp(v, OP_Callback, 2, 0);
|
|
}
|
|
}else
|
|
#endif /* SQLITE_OMIT_SCHEMA_PRAGMAS */
|
|
|
|
#ifndef SQLITE_OMIT_FOREIGN_KEY
|
|
if( sqlite3StrICmp(zLeft, "foreign_key_list")==0 && zRight ){
|
|
FKey *pFK;
|
|
Table *pTab;
|
|
if( sqlite3ReadSchema(pParse) ) goto pragma_out;
|
|
pTab = sqlite3FindTable(db, zRight, zDb);
|
|
if( pTab ){
|
|
v = sqlite3GetVdbe(pParse);
|
|
pFK = pTab->pFKey;
|
|
if( pFK ){
|
|
int i = 0;
|
|
sqlite3VdbeSetNumCols(v, 5);
|
|
sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "id", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "seq", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "table", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "from", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 4, COLNAME_NAME, "to", P3_STATIC);
|
|
while(pFK){
|
|
int j;
|
|
for(j=0; j<pFK->nCol; j++){
|
|
char *zCol = pFK->aCol[j].zCol;
|
|
sqlite3VdbeAddOp(v, OP_Integer, i, 0);
|
|
sqlite3VdbeAddOp(v, OP_Integer, j, 0);
|
|
sqlite3VdbeOp3(v, OP_String8, 0, 0, pFK->zTo, 0);
|
|
sqlite3VdbeOp3(v, OP_String8, 0, 0,
|
|
pTab->aCol[pFK->aCol[j].iFrom].zName, 0);
|
|
sqlite3VdbeOp3(v, zCol ? OP_String8 : OP_Null, 0, 0, zCol, 0);
|
|
sqlite3VdbeAddOp(v, OP_Callback, 5, 0);
|
|
}
|
|
++i;
|
|
pFK = pFK->pNextFrom;
|
|
}
|
|
}
|
|
}
|
|
}else
|
|
#endif /* !defined(SQLITE_OMIT_FOREIGN_KEY) */
|
|
|
|
#ifndef NDEBUG
|
|
if( sqlite3StrICmp(zLeft, "parser_trace")==0 ){
|
|
extern void sqlite3ParserTrace(FILE*, char *);
|
|
if( zRight ){
|
|
if( getBoolean(zRight) ){
|
|
sqlite3ParserTrace(stderr, "parser: ");
|
|
}else{
|
|
sqlite3ParserTrace(0, 0);
|
|
}
|
|
}
|
|
}else
|
|
#endif
|
|
|
|
/* Reinstall the LIKE and GLOB functions. The variant of LIKE
|
|
** used will be case sensitive or not depending on the RHS.
|
|
*/
|
|
if( sqlite3StrICmp(zLeft, "case_sensitive_like")==0 ){
|
|
if( zRight ){
|
|
sqlite3RegisterLikeFunctions(db, getBoolean(zRight));
|
|
}
|
|
}else
|
|
|
|
#ifndef SQLITE_INTEGRITY_CHECK_ERROR_MAX
|
|
# define SQLITE_INTEGRITY_CHECK_ERROR_MAX 100
|
|
#endif
|
|
|
|
#ifndef SQLITE_OMIT_INTEGRITY_CHECK
|
|
if( sqlite3StrICmp(zLeft, "integrity_check")==0 ){
|
|
int i, j, addr, mxErr;
|
|
|
|
/* Code that appears at the end of the integrity check. If no error
|
|
** messages have been generated, output OK. Otherwise output the
|
|
** error message
|
|
*/
|
|
static const VdbeOpList endCode[] = {
|
|
{ OP_MemLoad, 0, 0, 0},
|
|
{ OP_Integer, 0, 0, 0},
|
|
{ OP_Ne, 0, 0, 0}, /* 2 */
|
|
{ OP_String8, 0, 0, "ok"},
|
|
{ OP_Callback, 1, 0, 0},
|
|
};
|
|
|
|
/* Initialize the VDBE program */
|
|
if( sqlite3ReadSchema(pParse) ) goto pragma_out;
|
|
sqlite3VdbeSetNumCols(v, 1);
|
|
sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "integrity_check", P3_STATIC);
|
|
|
|
/* Set the maximum error count */
|
|
mxErr = SQLITE_INTEGRITY_CHECK_ERROR_MAX;
|
|
if( zRight ){
|
|
mxErr = atoi(zRight);
|
|
if( mxErr<=0 ){
|
|
mxErr = SQLITE_INTEGRITY_CHECK_ERROR_MAX;
|
|
}
|
|
}
|
|
sqlite3VdbeAddOp(v, OP_MemInt, mxErr, 0);
|
|
|
|
/* Do an integrity check on each database file */
|
|
for(i=0; i<db->nDb; i++){
|
|
HashElem *x;
|
|
Hash *pTbls;
|
|
int cnt = 0;
|
|
|
|
if( OMIT_TEMPDB && i==1 ) continue;
|
|
|
|
sqlite3CodeVerifySchema(pParse, i);
|
|
addr = sqlite3VdbeAddOp(v, OP_IfMemPos, 0, 0);
|
|
sqlite3VdbeAddOp(v, OP_Halt, 0, 0);
|
|
sqlite3VdbeJumpHere(v, addr);
|
|
|
|
/* Do an integrity check of the B-Tree
|
|
*/
|
|
pTbls = &db->aDb[i].pSchema->tblHash;
|
|
for(x=sqliteHashFirst(pTbls); x; x=sqliteHashNext(x)){
|
|
Table *pTab = sqliteHashData(x);
|
|
Index *pIdx;
|
|
sqlite3VdbeAddOp(v, OP_Integer, pTab->tnum, 0);
|
|
cnt++;
|
|
for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
|
|
sqlite3VdbeAddOp(v, OP_Integer, pIdx->tnum, 0);
|
|
cnt++;
|
|
}
|
|
}
|
|
if( cnt==0 ) continue;
|
|
sqlite3VdbeAddOp(v, OP_IntegrityCk, 0, i);
|
|
addr = sqlite3VdbeAddOp(v, OP_IsNull, -1, 0);
|
|
sqlite3VdbeOp3(v, OP_String8, 0, 0,
|
|
sqlite3MPrintf("*** in database %s ***\n", db->aDb[i].zName),
|
|
P3_DYNAMIC);
|
|
sqlite3VdbeAddOp(v, OP_Pull, 1, 0);
|
|
sqlite3VdbeAddOp(v, OP_Concat, 0, 0);
|
|
sqlite3VdbeAddOp(v, OP_Callback, 1, 0);
|
|
sqlite3VdbeJumpHere(v, addr);
|
|
|
|
/* Make sure all the indices are constructed correctly.
|
|
*/
|
|
for(x=sqliteHashFirst(pTbls); x; x=sqliteHashNext(x)){
|
|
Table *pTab = sqliteHashData(x);
|
|
Index *pIdx;
|
|
int loopTop;
|
|
|
|
if( pTab->pIndex==0 ) continue;
|
|
addr = sqlite3VdbeAddOp(v, OP_IfMemPos, 0, 0);
|
|
sqlite3VdbeAddOp(v, OP_Halt, 0, 0);
|
|
sqlite3VdbeJumpHere(v, addr);
|
|
sqlite3OpenTableAndIndices(pParse, pTab, 1, OP_OpenRead);
|
|
sqlite3VdbeAddOp(v, OP_MemInt, 0, 1);
|
|
loopTop = sqlite3VdbeAddOp(v, OP_Rewind, 1, 0);
|
|
sqlite3VdbeAddOp(v, OP_MemIncr, 1, 1);
|
|
for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
|
|
int jmp2;
|
|
static const VdbeOpList idxErr[] = {
|
|
{ OP_MemIncr, -1, 0, 0},
|
|
{ OP_String8, 0, 0, "rowid "},
|
|
{ OP_Rowid, 1, 0, 0},
|
|
{ OP_String8, 0, 0, " missing from index "},
|
|
{ OP_String8, 0, 0, 0}, /* 4 */
|
|
{ OP_Concat, 2, 0, 0},
|
|
{ OP_Callback, 1, 0, 0},
|
|
};
|
|
sqlite3GenerateIndexKey(v, pIdx, 1);
|
|
jmp2 = sqlite3VdbeAddOp(v, OP_Found, j+2, 0);
|
|
addr = sqlite3VdbeAddOpList(v, ArraySize(idxErr), idxErr);
|
|
sqlite3VdbeChangeP3(v, addr+4, pIdx->zName, P3_STATIC);
|
|
sqlite3VdbeJumpHere(v, jmp2);
|
|
}
|
|
sqlite3VdbeAddOp(v, OP_Next, 1, loopTop+1);
|
|
sqlite3VdbeJumpHere(v, loopTop);
|
|
for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
|
|
static const VdbeOpList cntIdx[] = {
|
|
{ OP_MemInt, 0, 2, 0},
|
|
{ OP_Rewind, 0, 0, 0}, /* 1 */
|
|
{ OP_MemIncr, 1, 2, 0},
|
|
{ OP_Next, 0, 0, 0}, /* 3 */
|
|
{ OP_MemLoad, 1, 0, 0},
|
|
{ OP_MemLoad, 2, 0, 0},
|
|
{ OP_Eq, 0, 0, 0}, /* 6 */
|
|
{ OP_MemIncr, -1, 0, 0},
|
|
{ OP_String8, 0, 0, "wrong # of entries in index "},
|
|
{ OP_String8, 0, 0, 0}, /* 9 */
|
|
{ OP_Concat, 0, 0, 0},
|
|
{ OP_Callback, 1, 0, 0},
|
|
};
|
|
if( pIdx->tnum==0 ) continue;
|
|
addr = sqlite3VdbeAddOp(v, OP_IfMemPos, 0, 0);
|
|
sqlite3VdbeAddOp(v, OP_Halt, 0, 0);
|
|
sqlite3VdbeJumpHere(v, addr);
|
|
addr = sqlite3VdbeAddOpList(v, ArraySize(cntIdx), cntIdx);
|
|
sqlite3VdbeChangeP1(v, addr+1, j+2);
|
|
sqlite3VdbeChangeP2(v, addr+1, addr+4);
|
|
sqlite3VdbeChangeP1(v, addr+3, j+2);
|
|
sqlite3VdbeChangeP2(v, addr+3, addr+2);
|
|
sqlite3VdbeJumpHere(v, addr+6);
|
|
sqlite3VdbeChangeP3(v, addr+9, pIdx->zName, P3_STATIC);
|
|
}
|
|
}
|
|
}
|
|
addr = sqlite3VdbeAddOpList(v, ArraySize(endCode), endCode);
|
|
sqlite3VdbeChangeP1(v, addr+1, mxErr);
|
|
sqlite3VdbeJumpHere(v, addr+2);
|
|
}else
|
|
#endif /* SQLITE_OMIT_INTEGRITY_CHECK */
|
|
|
|
#ifndef SQLITE_OMIT_UTF16
|
|
/*
|
|
** PRAGMA encoding
|
|
** PRAGMA encoding = "utf-8"|"utf-16"|"utf-16le"|"utf-16be"
|
|
**
|
|
** In it's first form, this pragma returns the encoding of the main
|
|
** database. If the database is not initialized, it is initialized now.
|
|
**
|
|
** The second form of this pragma is a no-op if the main database file
|
|
** has not already been initialized. In this case it sets the default
|
|
** encoding that will be used for the main database file if a new file
|
|
** is created. If an existing main database file is opened, then the
|
|
** default text encoding for the existing database is used.
|
|
**
|
|
** In all cases new databases created using the ATTACH command are
|
|
** created to use the same default text encoding as the main database. If
|
|
** the main database has not been initialized and/or created when ATTACH
|
|
** is executed, this is done before the ATTACH operation.
|
|
**
|
|
** In the second form this pragma sets the text encoding to be used in
|
|
** new database files created using this database handle. It is only
|
|
** useful if invoked immediately after the main database i
|
|
*/
|
|
if( sqlite3StrICmp(zLeft, "encoding")==0 ){
|
|
static const struct EncName {
|
|
char *zName;
|
|
u8 enc;
|
|
} encnames[] = {
|
|
{ "UTF-8", SQLITE_UTF8 },
|
|
{ "UTF8", SQLITE_UTF8 },
|
|
{ "UTF-16le", SQLITE_UTF16LE },
|
|
{ "UTF16le", SQLITE_UTF16LE },
|
|
{ "UTF-16be", SQLITE_UTF16BE },
|
|
{ "UTF16be", SQLITE_UTF16BE },
|
|
{ "UTF-16", 0 }, /* SQLITE_UTF16NATIVE */
|
|
{ "UTF16", 0 }, /* SQLITE_UTF16NATIVE */
|
|
{ 0, 0 }
|
|
};
|
|
const struct EncName *pEnc;
|
|
if( !zRight ){ /* "PRAGMA encoding" */
|
|
if( sqlite3ReadSchema(pParse) ) goto pragma_out;
|
|
sqlite3VdbeSetNumCols(v, 1);
|
|
sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "encoding", P3_STATIC);
|
|
sqlite3VdbeAddOp(v, OP_String8, 0, 0);
|
|
for(pEnc=&encnames[0]; pEnc->zName; pEnc++){
|
|
if( pEnc->enc==ENC(pParse->db) ){
|
|
sqlite3VdbeChangeP3(v, -1, pEnc->zName, P3_STATIC);
|
|
break;
|
|
}
|
|
}
|
|
sqlite3VdbeAddOp(v, OP_Callback, 1, 0);
|
|
}else{ /* "PRAGMA encoding = XXX" */
|
|
/* Only change the value of sqlite.enc if the database handle is not
|
|
** initialized. If the main database exists, the new sqlite.enc value
|
|
** will be overwritten when the schema is next loaded. If it does not
|
|
** already exists, it will be created to use the new encoding value.
|
|
*/
|
|
if(
|
|
!(DbHasProperty(db, 0, DB_SchemaLoaded)) ||
|
|
DbHasProperty(db, 0, DB_Empty)
|
|
){
|
|
for(pEnc=&encnames[0]; pEnc->zName; pEnc++){
|
|
if( 0==sqlite3StrICmp(zRight, pEnc->zName) ){
|
|
ENC(pParse->db) = pEnc->enc ? pEnc->enc : SQLITE_UTF16NATIVE;
|
|
break;
|
|
}
|
|
}
|
|
if( !pEnc->zName ){
|
|
sqlite3ErrorMsg(pParse, "unsupported encoding: %s", zRight);
|
|
}
|
|
}
|
|
}
|
|
}else
|
|
#endif /* SQLITE_OMIT_UTF16 */
|
|
|
|
#ifndef SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS
|
|
/*
|
|
** PRAGMA [database.]schema_version
|
|
** PRAGMA [database.]schema_version = <integer>
|
|
**
|
|
** PRAGMA [database.]user_version
|
|
** PRAGMA [database.]user_version = <integer>
|
|
**
|
|
** The pragma's schema_version and user_version are used to set or get
|
|
** the value of the schema-version and user-version, respectively. Both
|
|
** the schema-version and the user-version are 32-bit signed integers
|
|
** stored in the database header.
|
|
**
|
|
** The schema-cookie is usually only manipulated internally by SQLite. It
|
|
** is incremented by SQLite whenever the database schema is modified (by
|
|
** creating or dropping a table or index). The schema version is used by
|
|
** SQLite each time a query is executed to ensure that the internal cache
|
|
** of the schema used when compiling the SQL query matches the schema of
|
|
** the database against which the compiled query is actually executed.
|
|
** Subverting this mechanism by using "PRAGMA schema_version" to modify
|
|
** the schema-version is potentially dangerous and may lead to program
|
|
** crashes or database corruption. Use with caution!
|
|
**
|
|
** The user-version is not used internally by SQLite. It may be used by
|
|
** applications for any purpose.
|
|
*/
|
|
if( sqlite3StrICmp(zLeft, "schema_version")==0 ||
|
|
sqlite3StrICmp(zLeft, "user_version")==0 ){
|
|
|
|
int iCookie; /* Cookie index. 0 for schema-cookie, 6 for user-cookie. */
|
|
if( zLeft[0]=='s' || zLeft[0]=='S' ){
|
|
iCookie = 0;
|
|
}else{
|
|
iCookie = 5;
|
|
}
|
|
|
|
if( zRight ){
|
|
/* Write the specified cookie value */
|
|
static const VdbeOpList setCookie[] = {
|
|
{ OP_Transaction, 0, 1, 0}, /* 0 */
|
|
{ OP_Integer, 0, 0, 0}, /* 1 */
|
|
{ OP_SetCookie, 0, 0, 0}, /* 2 */
|
|
};
|
|
int addr = sqlite3VdbeAddOpList(v, ArraySize(setCookie), setCookie);
|
|
sqlite3VdbeChangeP1(v, addr, iDb);
|
|
sqlite3VdbeChangeP1(v, addr+1, atoi(zRight));
|
|
sqlite3VdbeChangeP1(v, addr+2, iDb);
|
|
sqlite3VdbeChangeP2(v, addr+2, iCookie);
|
|
}else{
|
|
/* Read the specified cookie value */
|
|
static const VdbeOpList readCookie[] = {
|
|
{ OP_ReadCookie, 0, 0, 0}, /* 0 */
|
|
{ OP_Callback, 1, 0, 0}
|
|
};
|
|
int addr = sqlite3VdbeAddOpList(v, ArraySize(readCookie), readCookie);
|
|
sqlite3VdbeChangeP1(v, addr, iDb);
|
|
sqlite3VdbeChangeP2(v, addr, iCookie);
|
|
sqlite3VdbeSetNumCols(v, 1);
|
|
sqlite3VdbeSetColName(v, 0, COLNAME_NAME, zLeft, P3_TRANSIENT);
|
|
}
|
|
}
|
|
#endif /* SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS */
|
|
|
|
#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
|
|
/*
|
|
** Report the current state of file logs for all databases
|
|
*/
|
|
if( sqlite3StrICmp(zLeft, "lock_status")==0 ){
|
|
static const char *const azLockName[] = {
|
|
"unlocked", "shared", "reserved", "pending", "exclusive"
|
|
};
|
|
int i;
|
|
Vdbe *v = sqlite3GetVdbe(pParse);
|
|
sqlite3VdbeSetNumCols(v, 2);
|
|
sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "database", P3_STATIC);
|
|
sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "status", P3_STATIC);
|
|
for(i=0; i<db->nDb; i++){
|
|
Btree *pBt;
|
|
Pager *pPager;
|
|
if( db->aDb[i].zName==0 ) continue;
|
|
sqlite3VdbeOp3(v, OP_String8, 0, 0, db->aDb[i].zName, P3_STATIC);
|
|
pBt = db->aDb[i].pBt;
|
|
if( pBt==0 || (pPager = sqlite3BtreePager(pBt))==0 ){
|
|
sqlite3VdbeOp3(v, OP_String8, 0, 0, "closed", P3_STATIC);
|
|
}else{
|
|
int j = sqlite3pager_lockstate(pPager);
|
|
sqlite3VdbeOp3(v, OP_String8, 0, 0,
|
|
(j>=0 && j<=4) ? azLockName[j] : "unknown", P3_STATIC);
|
|
}
|
|
sqlite3VdbeAddOp(v, OP_Callback, 2, 0);
|
|
}
|
|
}else
|
|
#endif
|
|
|
|
#ifdef SQLITE_SSE
|
|
/*
|
|
** Check to see if the sqlite_statements table exists. Create it
|
|
** if it does not.
|
|
*/
|
|
if( sqlite3StrICmp(zLeft, "create_sqlite_statement_table")==0 ){
|
|
extern int sqlite3CreateStatementsTable(Parse*);
|
|
sqlite3CreateStatementsTable(pParse);
|
|
}else
|
|
#endif
|
|
|
|
#if SQLITE_HAS_CODEC
|
|
if( sqlite3StrICmp(zLeft, "key")==0 ){
|
|
sqlite3_key(db, zRight, strlen(zRight));
|
|
}else
|
|
#endif
|
|
#if SQLITE_HAS_CODEC || defined(SQLITE_ENABLE_CEROD)
|
|
if( sqlite3StrICmp(zLeft, "activate_extensions")==0 ){
|
|
#if SQLITE_HAS_CODEC
|
|
if( sqlite3StrNICmp(zRight, "see-", 4)==0 ){
|
|
extern void sqlite3_activate_see(const char*);
|
|
sqlite3_activate_see(&zRight[4]);
|
|
}
|
|
#endif
|
|
#ifdef SQLITE_ENABLE_CEROD
|
|
if( sqlite3StrNICmp(zRight, "cerod-", 6)==0 ){
|
|
extern void sqlite3_activate_cerod(const char*);
|
|
sqlite3_activate_cerod(&zRight[6]);
|
|
}
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
{}
|
|
|
|
if( v ){
|
|
/* Code an OP_Expire at the end of each PRAGMA program to cause
|
|
** the VDBE implementing the pragma to expire. Most (all?) pragmas
|
|
** are only valid for a single execution.
|
|
*/
|
|
sqlite3VdbeAddOp(v, OP_Expire, 1, 0);
|
|
|
|
/*
|
|
** Reset the safety level, in case the fullfsync flag or synchronous
|
|
** setting changed.
|
|
*/
|
|
#ifndef SQLITE_OMIT_PAGER_PRAGMAS
|
|
if( db->autoCommit ){
|
|
sqlite3BtreeSetSafetyLevel(pDb->pBt, pDb->safety_level,
|
|
(db->flags&SQLITE_FullFSync)!=0);
|
|
}
|
|
#endif
|
|
}
|
|
pragma_out:
|
|
sqliteFree(zLeft);
|
|
sqliteFree(zRight);
|
|
}
|
|
|
|
#endif /* SQLITE_OMIT_PRAGMA || SQLITE_OMIT_PARSER */
|