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Overview
Comment:Fix memory leak in where.c. (CVS 3271)
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SHA1: 3d10e8f36113a189aa19ecd99007cd0a926b2f8a
User & Date: danielk1977 2006-06-19 04:49:35.000
Context
2006-06-19
05:33
Respect default collation sequences assigned to virtual table columns. (CVS 3272) (check-in: d9b205acac user: danielk1977 tags: trunk)
04:49
Fix memory leak in where.c. (CVS 3271) (check-in: 3d10e8f361 user: danielk1977 tags: trunk)
03:05
Add tests to ensure an INSERT/UPDATE/DELETE immediately after virtual table construction does not fail. (CVS 3270) (check-in: 144d0eb13a user: danielk1977 tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
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 reponsible 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 1.218 2006/06/14 22:07:11 drh Exp $
*/
#include "sqliteInt.h"

/*
** The number of bits in a Bitmask.  "BMS" means "BitMask Size".
*/
#define BMS  (sizeof(Bitmask)*8)








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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 reponsible 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 1.219 2006/06/19 04:49:35 danielk1977 Exp $
*/
#include "sqliteInt.h"

/*
** The number of bits in a Bitmask.  "BMS" means "BitMask Size".
*/
#define BMS  (sizeof(Bitmask)*8)
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  /* Allocate and initialize the WhereInfo structure that will become the
  ** return value.
  */
  pWInfo = sqliteMalloc( sizeof(WhereInfo) + pTabList->nSrc*sizeof(WhereLevel));
  if( sqlite3MallocFailed() ){
    goto whereBeginNoMem;
  }

  pWInfo->pParse = pParse;
  pWInfo->pTabList = pTabList;
  pWInfo->iBreak = sqlite3VdbeMakeLabel(v);

  /* Special case: a WHERE clause that is constant.  Evaluate the
  ** expression and either jump over all of the code or fall thru.
  */








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  /* Allocate and initialize the WhereInfo structure that will become the
  ** return value.
  */
  pWInfo = sqliteMalloc( sizeof(WhereInfo) + pTabList->nSrc*sizeof(WhereLevel));
  if( sqlite3MallocFailed() ){
    goto whereBeginNoMem;
  }
  pWInfo->nLevel = pTabList->nSrc;
  pWInfo->pParse = pParse;
  pWInfo->pTabList = pTabList;
  pWInfo->iBreak = sqlite3VdbeMakeLabel(v);

  /* Special case: a WHERE clause that is constant.  Evaluate the
  ** expression and either jump over all of the code or fall thru.
  */
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Changes to test/vtab5.test. 
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# 2006 June 10
#
# 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 implements regression tests for SQLite library.
#
# $Id: vtab5.test,v 1.1 2006/06/19 03:05:10 danielk1977 Exp $

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

ifcapable !vtab {
  finish_test
  return













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# 2006 June 10
#
# 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 implements regression tests for SQLite library.
#
# $Id: vtab5.test,v 1.2 2006/06/19 04:49:35 danielk1977 Exp $

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

ifcapable !vtab {
  finish_test
  return
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    INSERT INTO treal VALUES('a', 'b', 'c');
    CREATE VIRTUAL TABLE techo USING echo(treal);
  }
} {}

do_test vtab5.1.2 {
  execsql {
    SELECT * FROM treal;
  }
} {a b c}

do_test vtab5.1.3 {
  db close
  sqlite3 db test.db
  register_echo_module [sqlite3_connection_pointer db]
  execsql {
    INSERT INTO techo VALUES('c', 'd', 'e');
    SELECT * FROM techo;








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    INSERT INTO treal VALUES('a', 'b', 'c');
    CREATE VIRTUAL TABLE techo USING echo(treal);
  }
} {}

do_test vtab5.1.2 {
  execsql {
    SELECT * FROM techo;
  }
} {a b c}

do_test vtab5.1.3 {
  db close
  sqlite3 db test.db
  register_echo_module [sqlite3_connection_pointer db]
  execsql {
    INSERT INTO techo VALUES('c', 'd', 'e');
    SELECT * FROM techo;
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