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Overview
Comment:Fix an OOM problem in where.c. (CVS 6060)
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SHA1:d2105f617eeb04c8177546c45bf6c63e72757f91
User & Date: drh 2008-12-23 16:23:05
Context
2008-12-23
19:15
Fix a problem with the savepoint code and in-memory journals. (CVS 6061) check-in: 26ceebf3 user: danielk1977 tags: trunk
16:23
Fix an OOM problem in where.c. (CVS 6060) check-in: d2105f61 user: drh tags: trunk
15:58
Make sure nOverflow is always cleared when a page is released. (CVS 6059) check-in: 8d0f7244 user: drh tags: trunk
Changes
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Changes to src/where.c.

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** This module contains C code that generates VDBE code used to process
** the WHERE clause of SQL statements.  This module is responsible for
** generating the code that loops through a table looking for applicable
** rows.  Indices are selected and used to speed the search when doing
** so is applicable.  Because this module is responsible for selecting
** indices, you might also think of this module as the "query optimizer".
**
** $Id: where.c,v 1.341 2008/12/23 13:35:23 drh Exp $
*/
#include "sqliteInt.h"

/*
** Trace output macros
*/
#if defined(SQLITE_TEST) || defined(SQLITE_DEBUG)
................................................................................
         || bestPlan.plan.u.pIdx!=pIdx)
    ){
      sqlite3ErrorMsg(pParse, "cannot use index: %s", pIdx->zName);
      goto whereBeginError;
    }
  }
  WHERETRACE(("*** Optimizer Finished ***\n"));


  /* If the total query only selects a single row, then the ORDER BY
  ** clause is irrelevant.
  */
  if( (andFlags & WHERE_UNIQUE)!=0 && ppOrderBy ){
    *ppOrderBy = 0;
  }







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** This module contains C code that generates VDBE code used to process
** the WHERE clause of SQL statements.  This module is responsible for
** generating the code that loops through a table looking for applicable
** rows.  Indices are selected and used to speed the search when doing
** so is applicable.  Because this module is responsible for selecting
** indices, you might also think of this module as the "query optimizer".
**
** $Id: where.c,v 1.342 2008/12/23 16:23:05 drh Exp $
*/
#include "sqliteInt.h"

/*
** Trace output macros
*/
#if defined(SQLITE_TEST) || defined(SQLITE_DEBUG)
................................................................................
         || bestPlan.plan.u.pIdx!=pIdx)
    ){
      sqlite3ErrorMsg(pParse, "cannot use index: %s", pIdx->zName);
      goto whereBeginError;
    }
  }
  WHERETRACE(("*** Optimizer Finished ***\n"));
  if( db->mallocFailed ) goto whereBeginError;

  /* If the total query only selects a single row, then the ORDER BY
  ** clause is irrelevant.
  */
  if( (andFlags & WHERE_UNIQUE)!=0 && ppOrderBy ){
    *ppOrderBy = 0;
  }