--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/engine/sqlite/src/pragma.cpp Thu Feb 25 14:29:19 2010 +0000
@@ -0,0 +1,1194 @@
+/*
+** 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: pragma.cpp 1282 2008-11-13 09:31:33Z LarsPson $
+*/
+#include "sqliteInt.h"
+#include <ctype.h>
+
+/* Ignore this whole file if pragmas are disabled
+*/
+#if !defined(SQLITE_OMIT_PRAGMA) && !defined(SQLITE_OMIT_PARSER)
+
+/*
+** 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;
+}
+
+/*
+** Interpret the given string as a locking mode value.
+*/
+static int getLockingMode(const char *z){
+ if( z ){
+ if( 0==sqlite3StrICmp(z, "exclusive") ) return PAGER_LOCKINGMODE_EXCLUSIVE;
+ if( 0==sqlite3StrICmp(z, "normal") ) return PAGER_LOCKINGMODE_NORMAL;
+ }
+ return PAGER_LOCKINGMODE_QUERY;
+}
+
+#ifndef SQLITE_OMIT_AUTOVACUUM
+/*
+** Interpret the given string as an auto-vacuum mode value.
+**
+** The following strings, "none", "full" and "incremental" are
+** acceptable, as are their numeric equivalents: 0, 1 and 2 respectively.
+*/
+static int getAutoVacuum(const char *z){
+ int i;
+ if( 0==sqlite3StrICmp(z, "none") ) return BTREE_AUTOVACUUM_NONE;
+ if( 0==sqlite3StrICmp(z, "full") ) return BTREE_AUTOVACUUM_FULL;
+ if( 0==sqlite3StrICmp(z, "incremental") ) return BTREE_AUTOVACUUM_INCR;
+ i = atoi(z);
+ return ((i>=0&&i<=2)?i:0);
+}
+#endif /* ifndef SQLITE_OMIT_AUTOVACUUM */
+
+#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->autoCommit ){
+ 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[] = {
+ { "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 },
+#ifdef SQLITE_DEBUG
+ { "sql_trace", SQLITE_SqlTrace },
+ { "vdbe_listing", SQLITE_VdbeListing },
+ { "vdbe_trace", SQLITE_VdbeTrace },
+#endif
+#ifndef SQLITE_OMIT_CHECK
+ { "ignore_check_constraints", SQLITE_IgnoreChecks },
+#endif
+ /* The following is VERY experimental */
+ { "writable_schema", SQLITE_WriteSchema|SQLITE_RecoveryMode },
+ { "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;
+ }
+
+ /* Many of the flag-pragmas modify the code generated by the SQL
+ ** compiler (eg. count_changes). So add an opcode to expire all
+ ** compiled SQL statements after modifying a pragma value.
+ */
+ sqlite3VdbeAddOp(v, OP_Expire, 0, 0);
+ }
+ }
+
+ 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(db, pId);
+ if( !zLeft ) return;
+ if( minusFlag ){
+ zRight = sqlite3MPrintf(db, "-%T", pValue);
+ }else{
+ zRight = sqlite3NameFromToken(db, 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;
+ sqlite3VdbeUsesBtree(v, iDb);
+ 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, SQLITE_DEFAULT_CACHE_SIZE);
+ }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{
+ /* Malloc may fail when setting the page-size, as there is an internal
+ ** buffer that the pager module resizes using sqlite3_realloc().
+ */
+ if( SQLITE_NOMEM==sqlite3BtreeSetPageSize(pBt, atoi(zRight), -1) ){
+ db->mallocFailed = 1;
+ }
+ }
+ }else
+
+ /*
+ ** PRAGMA [database.]max_page_count
+ ** PRAGMA [database.]max_page_count=N
+ **
+ ** The first form reports the current setting for the
+ ** maximum number of pages in the database file. The
+ ** second form attempts to change this setting. Both
+ ** forms return the current setting.
+ */
+ if( sqlite3StrICmp(zLeft,"max_page_count")==0 ){
+ Btree *pBt = pDb->pBt;
+ int newMax = 0;
+ if( zRight ){
+ newMax = atoi(zRight);
+ }
+ if( pBt ){
+ newMax = sqlite3BtreeMaxPageCount(pBt, newMax);
+ }
+ returnSingleInt(pParse, "max_page_count", newMax);
+ }else
+
+ /*
+ ** PRAGMA [database.]locking_mode
+ ** PRAGMA [database.]locking_mode = (normal|exclusive)
+ */
+ if( sqlite3StrICmp(zLeft,"locking_mode")==0 ){
+ const char *zRet = "normal";
+ int eMode = getLockingMode(zRight);
+
+ if( pId2->n==0 && eMode==PAGER_LOCKINGMODE_QUERY ){
+ /* Simple "PRAGMA locking_mode;" statement. This is a query for
+ ** the current default locking mode (which may be different to
+ ** the locking-mode of the main database).
+ */
+ eMode = db->dfltLockMode;
+ }else{
+ Pager *pPager;
+ if( pId2->n==0 ){
+ /* This indicates that no database name was specified as part
+ ** of the PRAGMA command. In this case the locking-mode must be
+ ** set on all attached databases, as well as the main db file.
+ **
+ ** Also, the sqlite3.dfltLockMode variable is set so that
+ ** any subsequently attached databases also use the specified
+ ** locking mode.
+ */
+ int ii;
+ assert(pDb==&db->aDb[0]);
+ for(ii=2; ii<db->nDb; ii++){
+ pPager = sqlite3BtreePager(db->aDb[ii].pBt);
+ sqlite3PagerLockingMode(pPager, eMode);
+ }
+ db->dfltLockMode = eMode;
+ }
+ pPager = sqlite3BtreePager(pDb->pBt);
+ eMode = sqlite3PagerLockingMode(pPager, eMode);
+ }
+
+ assert(eMode==PAGER_LOCKINGMODE_NORMAL||eMode==PAGER_LOCKINGMODE_EXCLUSIVE);
+ if( eMode==PAGER_LOCKINGMODE_EXCLUSIVE ){
+ zRet = "exclusive";
+ }
+ sqlite3VdbeSetNumCols(v, 1);
+ sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "locking_mode", P3_STATIC);
+ sqlite3VdbeOp3(v, OP_String8, 0, 0, zRet, 0);
+ sqlite3VdbeAddOp(v, OP_Callback, 1, 0);
+ }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( sqlite3ReadSchema(pParse) ){
+ goto pragma_out;
+ }
+ if( !zRight ){
+ int auto_vacuum =
+ pBt ? sqlite3BtreeGetAutoVacuum(pBt) : SQLITE_DEFAULT_AUTOVACUUM;
+ returnSingleInt(pParse, "auto_vacuum", auto_vacuum);
+ }else{
+ int eAuto = getAutoVacuum(zRight);
+ db->nextAutovac = eAuto;
+ if( eAuto>=0 ){
+ /* Call SetAutoVacuum() to set initialize the internal auto and
+ ** incr-vacuum flags. This is required in case this connection
+ ** creates the database file. It is important that it is created
+ ** as an auto-vacuum capable db.
+ */
+ int rc = sqlite3BtreeSetAutoVacuum(pBt, eAuto);
+ if( rc==SQLITE_OK && (eAuto==1 || eAuto==2) ){
+ /* When setting the auto_vacuum mode to either "full" or
+ ** "incremental", write the value of meta[6] in the database
+ ** file. Before writing to meta[6], check that meta[3] indicates
+ ** that this really is an auto-vacuum capable database.
+ */
+ static const VdbeOpList setMeta6[] = {
+ { OP_Transaction, 0, 1, 0}, /* 0 */
+ { OP_ReadCookie, 0, 3, 0}, /* 1 */
+ { OP_If, 0, 0, 0}, /* 2 */
+ { OP_Halt, SQLITE_OK, OE_Abort, 0}, /* 3 */
+ { OP_Integer, 0, 0, 0}, /* 4 */
+ { OP_SetCookie, 0, 6, 0}, /* 5 */
+ };
+ int iAddr;
+ iAddr = sqlite3VdbeAddOpList(v, ArraySize(setMeta6), setMeta6);
+ sqlite3VdbeChangeP1(v, iAddr, iDb);
+ sqlite3VdbeChangeP1(v, iAddr+1, iDb);
+ sqlite3VdbeChangeP2(v, iAddr+2, iAddr+4);
+ sqlite3VdbeChangeP1(v, iAddr+4, eAuto-1);
+ sqlite3VdbeChangeP1(v, iAddr+5, iDb);
+ sqlite3VdbeUsesBtree(v, iDb);
+ }
+ }
+ }
+ }else
+#endif
+
+ /*
+ ** PRAGMA [database.]incremental_vacuum(N)
+ **
+ ** Do N steps of incremental vacuuming on a database.
+ */
+#ifndef SQLITE_OMIT_AUTOVACUUM
+ if( sqlite3StrICmp(zLeft,"incremental_vacuum")==0 ){
+ int iLimit, addr;
+ if( sqlite3ReadSchema(pParse) ){
+ goto pragma_out;
+ }
+ if( zRight==0 || !sqlite3GetInt32(zRight, &iLimit) || iLimit<=0 ){
+ iLimit = 0x7fffffff;
+ }
+ sqlite3BeginWriteOperation(pParse, 0, iDb);
+ sqlite3VdbeAddOp(v, OP_MemInt, iLimit, 0);
+ addr = sqlite3VdbeAddOp(v, OP_IncrVacuum, iDb, 0);
+ sqlite3VdbeAddOp(v, OP_Callback, 0, 0);
+ sqlite3VdbeAddOp(v, OP_MemIncr, -1, 0);
+ sqlite3VdbeAddOp(v, OP_IfMemPos, 0, addr);
+ sqlite3VdbeJumpHere(v, addr);
+ }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]
+ && !sqlite3OsAccess(db->pVfs, zRight, SQLITE_ACCESS_READWRITE)
+ ){
+ 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);
+ }
+ sqlite3_free(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;
+ int nHidden = 0;
+ 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;
+ if( IsHiddenColumn(pCol) ){
+ nHidden++;
+ continue;
+ }
+ sqlite3VdbeAddOp(v, OP_Integer, i-nHidden, 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 ){
+ 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 = (Table*)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(db, "*** 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 = (Table*)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 its 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
+ || sqlite3StrICmp(zLeft, "freelist_count")==0
+ ){
+
+ int iCookie; /* Cookie index. 0 for schema-cookie, 6 for user-cookie. */
+ sqlite3VdbeUsesBtree(v, iDb);
+ switch( zLeft[0] ){
+ case 's': case 'S':
+ iCookie = 0;
+ break;
+ case 'f': case 'F':
+ iCookie = 1;
+ iDb = (-1*(iDb+1));
+ assert(iDb<=0);
+ break;
+ default:
+ iCookie = 5;
+ break;
+ }
+
+ if( zRight && iDb>=0 ){
+ /* 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);
+ }
+ }else
+#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;
+ const char *zState = "unknown";
+ int j;
+ 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 ){
+ zState = "closed";
+ }else if( sqlite3_file_control(db, db->aDb[i].zName,
+ SQLITE_FCNTL_LOCKSTATE, &j)==SQLITE_OK ){
+ zState = azLockName[j];
+ }
+ sqlite3VdbeOp3(v, OP_String8, 0, 0, zState, 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:
+ sqlite3_free(zLeft);
+ sqlite3_free(zRight);
+}
+
+#endif /* SQLITE_OMIT_PRAGMA || SQLITE_OMIT_PARSER */