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Overview
Comment:Fix a memory leak in triggers and update tests to show the latest error message text. (CVS 886)
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Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: b90d9de32d10a71fe81f5bfd0cf57faae8c5c3b4
User & Date: drh 2003-03-30 00:19:50
Context
2003-03-30
18:41
Detect when a child node of a btree page has zero entries and report that as a case of database corruption. (CVS 887) (check-in: 66c80ae2 user: drh tags: trunk)
00:19
Fix a memory leak in triggers and update tests to show the latest error message text. (CVS 886) (check-in: b90d9de3 user: drh tags: trunk)
2003-03-27
13:50
Regression tests now work - except for some changes in error message text. The library is now safe to use for experimental work. (CVS 885) (check-in: 8a593e9c user: drh tags: trunk)
Changes
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Changes to src/build.c. 

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**     COPY
**     VACUUM
**     BEGIN TRANSACTION
**     COMMIT
**     ROLLBACK
**     PRAGMA
**
** $Id: build.c,v 1.135 2003/03/27 13:50:00 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** This routine is called when a new SQL statement is beginning to
** be parsed.  Check to see if the schema for the database needs
................................................................................
    assert( pTable->nSrc==1 );
    pTab =  sqliteSrcListLookup(pParse, pTable);
  }else{
    assert( pName==0 );
    pTab =  pParse->pNewTable;
  }
  if( pTab==0 || pParse->nErr ) goto exit_create_index;
  if( !isTemp && (pTab->readOnly || pTab->iDb>=2) ){






    sqliteSetString(&pParse->zErrMsg, "table ", pTab->zName, 
      " may not have non-temporary indices added", 0);
    pParse->nErr++;
    goto exit_create_index;
  }
  if( pTab->pSelect ){
    sqliteSetString(&pParse->zErrMsg, "views may not be indexed", 0);








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**     COPY
**     VACUUM
**     BEGIN TRANSACTION
**     COMMIT
**     ROLLBACK
**     PRAGMA
**
** $Id: build.c,v 1.136 2003/03/30 00:19:50 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** This routine is called when a new SQL statement is beginning to
** be parsed.  Check to see if the schema for the database needs
................................................................................
    assert( pTable->nSrc==1 );
    pTab =  sqliteSrcListLookup(pParse, pTable);
  }else{
    assert( pName==0 );
    pTab =  pParse->pNewTable;
  }
  if( pTab==0 || pParse->nErr ) goto exit_create_index;
  if( pTab->readOnly ){
    sqliteSetString(&pParse->zErrMsg, "table ", pTab->zName,
      " may not be indexed", 0);
    pParse->nErr++;
    goto exit_create_index;
  }
  if( !isTemp && pTab->iDb>=2 ){
    sqliteSetString(&pParse->zErrMsg, "table ", pTab->zName, 
      " may not have non-temporary indices added", 0);
    pParse->nErr++;
    goto exit_create_index;
  }
  if( pTab->pSelect ){
    sqliteSetString(&pParse->zErrMsg, "views may not be indexed", 0);

Changes to src/trigger.c. 

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  if( !pParse->explain ){
    /* Stick it in the hash-table */
    sqliteHashInsert(&(db->aDb[nt->iDb].trigHash), nt->name, pName->n + 1, nt);

    /* Attach it to the table object */
    nt->pNext = tab->pTrigger;
    tab->pTrigger = nt;

    return;
  }else{
    sqliteFree(nt->name);
    sqliteFree(nt->table);
    sqliteFree(nt);
  }

................................................................................
  assert( pTable->iDb==pTrigger->iDb );
#ifndef SQLITE_OMIT_AUTHORIZATION
  {
    int code = SQLITE_DROP_TRIGGER;
    if( pTable->iDb ) code = SQLITE_DROP_TEMP_TRIGGER;
    if( sqliteAuthCheck(pParse, code, pTrigger->name, pTable->zName) ||
      sqliteAuthCheck(pParse, SQLITE_DELETE, SCHEMA_TABLE(pTable->iDb),0) ){
      return;
    }
  }
#endif

  /*
   * If this is not an "explain", then delete the trigger structure.
   */








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  if( !pParse->explain ){
    /* Stick it in the hash-table */
    sqliteHashInsert(&(db->aDb[nt->iDb].trigHash), nt->name, pName->n + 1, nt);

    /* Attach it to the table object */
    nt->pNext = tab->pTrigger;
    tab->pTrigger = nt;
    sqliteSrcListDelete(pTableName);
    return;
  }else{
    sqliteFree(nt->name);
    sqliteFree(nt->table);
    sqliteFree(nt);
  }

................................................................................
  assert( pTable->iDb==pTrigger->iDb );
#ifndef SQLITE_OMIT_AUTHORIZATION
  {
    int code = SQLITE_DROP_TRIGGER;
    if( pTable->iDb ) code = SQLITE_DROP_TEMP_TRIGGER;
    if( sqliteAuthCheck(pParse, code, pTrigger->name, pTable->zName) ||
      sqliteAuthCheck(pParse, SQLITE_DELETE, SCHEMA_TABLE(pTable->iDb),0) ){
      goto drop_trigger_cleanup;
    }
  }
#endif

  /*
   * If this is not an "explain", then delete the trigger structure.
   */

Changes to test/index.test. 

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#    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.  The
# focus of this file is testing the CREATE INDEX statement.
#
# $Id: index.test,v 1.20 2002/08/13 23:02:58 drh Exp $

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

# Create a basic index and verify it is added to sqlite_master
#
do_test index-1.1 {
................................................................................
} {}

# Do not allow indices to be added to sqlite_master
#
do_test index-5.1 {
  set v [catch {execsql {CREATE INDEX index1 ON sqlite_master(name)}} msg]
  lappend v $msg
} {1 {table sqlite_master may not have new indices added}}
do_test index-5.2 {
  execsql {SELECT name FROM sqlite_master WHERE type!='meta'}
} {}

# Do not allow indices with duplicate names to be added
#
do_test index-6.1 {








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#    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.  The
# focus of this file is testing the CREATE INDEX statement.
#
# $Id: index.test,v 1.21 2003/03/30 00:19:50 drh Exp $

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

# Create a basic index and verify it is added to sqlite_master
#
do_test index-1.1 {
................................................................................
} {}

# Do not allow indices to be added to sqlite_master
#
do_test index-5.1 {
  set v [catch {execsql {CREATE INDEX index1 ON sqlite_master(name)}} msg]
  lappend v $msg
} {1 {table sqlite_master may not be indexed}}
do_test index-5.2 {
  execsql {SELECT name FROM sqlite_master WHERE type!='meta'}
} {}

# Do not allow indices with duplicate names to be added
#
do_test index-6.1 {

Changes to test/temptable.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 temporary tables and indices.
#
# $Id: temptable.test,v 1.8 2002/09/02 12:14:51 drh Exp $

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

# Create an alternative connection to the database
#
do_test temptable-1.0 {
................................................................................
  }
} {9 8 7}
do_test temptable-4.3 {
  catchsql {
    SELECT * FROM t2;
  } db2
} {1 {database schema has changed}}
do_test temptable-4.4 {











  catchsql {
    SELECT * FROM t2;
  } db2
} {0 {10 20}}
do_test temptable-4.5 {
  catchsql {
    DROP TABLE t2;
    SELECT * FROM t2;
  } db2
} {1 {no such table: t2}}
do_test temptable-4.6 {
  db2 close
  sqlite db2 ./test.db
  catchsql {
    SELECT * FROM t2;
  } db2
} {0 {9 8 7}}
................................................................................
do_test temptable-4.12 {
  execsql {
    SELECT * FROM t2;
  }
} {3 4}
do_test temptable-4.13 {
  catchsql {
    DROP TABLE t2;
    SELECT * FROM t2;
  } db2
} {1 {no such table: t2}}
do_test temptable-4.14 {
  execsql {
    SELECT * FROM t2;
  }
} {3 4}
do_test temptable-4.15 {
  db2 close








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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 temporary tables and indices.
#
# $Id: temptable.test,v 1.9 2003/03/30 00:19:50 drh Exp $

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

# Create an alternative connection to the database
#
do_test temptable-1.0 {
................................................................................
  }
} {9 8 7}
do_test temptable-4.3 {
  catchsql {
    SELECT * FROM t2;
  } db2
} {1 {database schema has changed}}
do_test temptable-4.4.1 {
  catchsql {
    SELECT * FROM temp.t2;
  } db2
} {0 {10 20}}
do_test temptable-4.4.2 {
  catchsql {
    SELECT * FROM main.t2;
  } db2
} {0 {9 8 7}}
do_test temptable-4.4.3 {
  # TEMP takes precedence over MAIN
  catchsql {
    SELECT * FROM t2;
  } db2
} {0 {10 20}}
do_test temptable-4.5 {
  catchsql {
    DROP TABLE t2;     -- should drop TEMP
    SELECT * FROM t2;  -- data should be from MAIN
  } db2
} {0 {9 8 7}}
do_test temptable-4.6 {
  db2 close
  sqlite db2 ./test.db
  catchsql {
    SELECT * FROM t2;
  } db2
} {0 {9 8 7}}
................................................................................
do_test temptable-4.12 {
  execsql {
    SELECT * FROM t2;
  }
} {3 4}
do_test temptable-4.13 {
  catchsql {
    DROP TABLE t2;     -- drops TEMP.T2
    SELECT * FROM t2;  -- uses MAIN.T2
  } db2
} {0 {3 4}}
do_test temptable-4.14 {
  execsql {
    SELECT * FROM t2;
  }
} {3 4}
do_test temptable-4.15 {
  db2 close

Changes to test/trigger1.test. 

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do_test trigger1-1.9 {
  catchsql {
    CREATE TRIGGER tr1 AFTER UPDATE ON sqlite_master BEGIN
       SELECT * FROM sqlite_master;
    END;
  }
} {1 {cannot create trigger on system table: sqlite_master}}

# Check to make sure that a DELETE statement within the body of
# a trigger does not mess up the DELETE that caused the trigger to
# run in the first place.
#
do_test trigger1-1.10 {
  execsql {








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do_test trigger1-1.9 {
  catchsql {
    CREATE TRIGGER tr1 AFTER UPDATE ON sqlite_master BEGIN
       SELECT * FROM sqlite_master;
    END;
  }
} {1 {cannot create trigger on system table}}

# Check to make sure that a DELETE statement within the body of
# a trigger does not mess up the DELETE that caused the trigger to
# run in the first place.
#
do_test trigger1-1.10 {
  execsql {

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