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Comment:Ensure temp db is open before executing a pragma like "temp.cachesize = xxx". Fix for #1682. (CVS 3104)
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SHA1: 1e4644b2369547da65fcaa9a3c8ddd206a3c82ae
User & Date: danielk1977 2006-02-17 12:25:15.000
Context
2006-02-17
15:01
Fix bug preventing compliation without MEMDEBUG when ENABLE_MEMORY_MANAGE is defined. (CVS 3105) (check-in: 76912b33b1 user: danielk1977 tags: trunk)
12:25
Ensure temp db is open before executing a pragma like "temp.cachesize = xxx". Fix for #1682. (CVS 3104) (check-in: 1e4644b236 user: danielk1977 tags: trunk)
2006-02-16
18:16
Or the SQLITE_UTF16_ALIGNED with the encoding field in sqlite3_create_collation and UTF16 strings will always be aligned on an even byte boundary when passed into the comparison function. (CVS 3103) (check-in: 7a1701e8c5 user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/build.c.
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**     CREATE INDEX
**     DROP INDEX
**     creating ID lists
**     BEGIN TRANSACTION
**     COMMIT
**     ROLLBACK
**
** $Id: build.c,v 1.386 2006/02/10 18:08:09 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** This routine is called when a new SQL statement is beginning to
** be parsed.  Initialize the pParse structure as needed.







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**     CREATE INDEX
**     DROP INDEX
**     creating ID lists
**     BEGIN TRANSACTION
**     COMMIT
**     ROLLBACK
**
** $Id: build.c,v 1.387 2006/02/17 12:25:15 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** This routine is called when a new SQL statement is beginning to
** be parsed.  Initialize the pParse structure as needed.
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  }
}

/*
** Make sure the TEMP database is open and available for use.  Return
** the number of errors.  Leave any error messages in the pParse structure.
*/
static int sqlite3OpenTempDatabase(Parse *pParse){
  sqlite3 *db = pParse->db;
  if( db->aDb[1].pBt==0 && !pParse->explain ){
    int rc = sqlite3BtreeFactory(db, 0, 0, MAX_PAGES, &db->aDb[1].pBt);
    if( rc!=SQLITE_OK ){
      sqlite3ErrorMsg(pParse, "unable to open a temporary database "
        "file for storing temporary tables");
      pParse->rc = rc;







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  }
}

/*
** Make sure the TEMP database is open and available for use.  Return
** the number of errors.  Leave any error messages in the pParse structure.
*/
int sqlite3OpenTempDatabase(Parse *pParse){
  sqlite3 *db = pParse->db;
  if( db->aDb[1].pBt==0 && !pParse->explain ){
    int rc = sqlite3BtreeFactory(db, 0, 0, MAX_PAGES, &db->aDb[1].pBt);
    if( rc!=SQLITE_OK ){
      sqlite3ErrorMsg(pParse, "unable to open a temporary database "
        "file for storing temporary tables");
      pParse->rc = rc;
Changes to src/pragma.c.
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/*
** 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.c,v 1.118 2006/02/11 01:25:51 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>

/* Ignore this whole file if pragmas are disabled
*/













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/*
** 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.c,v 1.119 2006/02/17 12:25:16 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>

/* Ignore this whole file if pragmas are disabled
*/
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  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];








  zLeft = sqlite3NameFromToken(pId);
  if( !zLeft ) return;
  if( minusFlag ){
    zRight = sqlite3MPrintf("-%T", pValue);
  }else{
    zRight = sqlite3NameFromToken(pValue);







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  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);
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    */
    sqlite3VdbeAddOp(v, OP_Expire, 1, 0);

    /*
    ** Reset the safety level, in case the fullfsync flag or synchronous
    ** setting changed.
    */

    if( db->autoCommit ){
      sqlite3BtreeSetSafetyLevel(pDb->pBt, pDb->safety_level,
                 (db->flags&SQLITE_FullFSync)!=0);
    }

  }
pragma_out:
  sqliteFree(zLeft);
  sqliteFree(zRight);
}

#endif /* SQLITE_OMIT_PRAGMA || SQLITE_OMIT_PARSER */







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    */
    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 */
Changes to src/sqliteInt.h.
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/*
** 2001 September 15
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.484 2006/02/16 18:16:37 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_

/*
** Extra interface definitions for those who need them
*/













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/*
** 2001 September 15
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.485 2006/02/17 12:25:16 danielk1977 Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_

/*
** Extra interface definitions for those who need them
*/
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int sqlite3CreateFunc(sqlite3 *, const char *, int, int, void *, 
  void (*)(sqlite3_context*,int,sqlite3_value **),
  void (*)(sqlite3_context*,int,sqlite3_value **), void (*)(sqlite3_context*));
int sqlite3ApiExit(sqlite3 *db, int);
int sqlite3MallocFailed(void);
void sqlite3FailedMalloc(void);
void sqlite3AbortOtherActiveVdbes(sqlite3 *, Vdbe *);


#ifndef SQLITE_OMIT_SHARED_CACHE
  void sqlite3TableLock(Parse *, int, int, u8, const char *);
#else
  #define sqlite3TableLock(v,w,x,y,z)
#endif








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int sqlite3CreateFunc(sqlite3 *, const char *, int, int, void *, 
  void (*)(sqlite3_context*,int,sqlite3_value **),
  void (*)(sqlite3_context*,int,sqlite3_value **), void (*)(sqlite3_context*));
int sqlite3ApiExit(sqlite3 *db, int);
int sqlite3MallocFailed(void);
void sqlite3FailedMalloc(void);
void sqlite3AbortOtherActiveVdbes(sqlite3 *, Vdbe *);
int sqlite3OpenTempDatabase(Parse *);

#ifndef SQLITE_OMIT_SHARED_CACHE
  void sqlite3TableLock(Parse *, int, int, u8, const char *);
#else
  #define sqlite3TableLock(v,w,x,y,z)
#endif

Changes to test/pragma.test.
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#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# This file implements tests for the PRAGMA command.
#
# $Id: pragma.test,v 1.39 2006/02/09 16:52:24 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Test organization:
#
# pragma-1.*: Test cache_size, default_cache_size and synchronous on main db.







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#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# This file implements tests for the PRAGMA command.
#
# $Id: pragma.test,v 1.40 2006/02/17 12:25:16 danielk1977 Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Test organization:
#
# pragma-1.*: Test cache_size, default_cache_size and synchronous on main db.
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  do_test pragma-11.2 {
    db collate New_Collation blah...
    execsql {
      pragma collation_list;
    }
  } {0 New_Collation 1 NOCASE 2 BINARY}
}





























# Reset the sqlite3_temp_directory variable for the next run of tests:
sqlite3 dbX :memory:
dbX eval {PRAGMA temp_store_directory = ""}
dbX close

finish_test







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  do_test pragma-11.2 {
    db collate New_Collation blah...
    execsql {
      pragma collation_list;
    }
  } {0 New_Collation 1 NOCASE 2 BINARY}
}

ifcapable schema_pragmas&&tempdb {
  do_test pragma-12.1 {
    sqlite3 db2 test.db
    execsql {
      PRAGMA temp.table_info('abc');
    } db2
  } {}
  db2 close

  do_test pragma-12.2 {
    sqlite3 db2 test.db
    execsql {
      PRAGMA temp.default_cache_size = 200;
      PRAGMA temp.default_cache_size;
    } db2
  } {200}
  db2 close

  do_test pragma-12.3 {
    sqlite3 db2 test.db
    execsql {
      PRAGMA temp.cache_size = 400;
      PRAGMA temp.cache_size;
    } db2
  } {400}
  db2 close
}

# Reset the sqlite3_temp_directory variable for the next run of tests:
sqlite3 dbX :memory:
dbX eval {PRAGMA temp_store_directory = ""}
dbX close

finish_test