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Alternative fix for ticket #3810. This is a replacement for check-in (6956). (CVS 6960)

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FossilOrigin-Name: ba1afc040171810d0c996708d7b9cb11abcd99d8
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drh
2009-08-06 17:43:31 +00:00
parent e33b0ed3b7
commit 3d5f74b275
6 changed files with 70 additions and 32 deletions
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23
src/trigger.c
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@@ -10,7 +10,7 @@
*************************************************************************
**
**
** $Id: trigger.c,v 1.141 2009/05/28 01:00:55 drh Exp $
** $Id: trigger.c,v 1.142 2009/08/06 17:43:31 drh Exp $
*/
#include "sqliteInt.h"
@@ -86,14 +86,14 @@ void sqlite3BeginTrigger(
int isTemp, /* True if the TEMPORARY keyword is present */
int noErr /* Suppress errors if the trigger already exists */
){
Trigger *pTrigger = 0;
Table *pTab;
Trigger *pTrigger = 0; /* The new trigger */
Table *pTab; /* Table that the trigger fires off of */
char *zName = 0; /* Name of the trigger */
sqlite3 *db = pParse->db;
sqlite3 *db = pParse->db; /* The database connection */
int iDb; /* The database to store the trigger in */
Token *pName; /* The unqualified db name */
DbFixer sFix;
int iTabDb;
DbFixer sFix; /* State vector for the DB fixer */
int iTabDb; /* Index of the database holding pTab */
assert( pName1!=0 ); /* pName1->z might be NULL, but not pName1 itself */
assert( pName2!=0 );
@@ -138,6 +138,17 @@ void sqlite3BeginTrigger(
pTab = sqlite3SrcListLookup(pParse, pTableName);
if( !pTab ){
/* The table does not exist. */
if( db->init.iDb==1 ){
/* Ticket #3810.
** Normally, whenever a table is dropped, all associated triggers are
** dropped too. But if a TEMP trigger is created on a non-TEMP table
** and the table is dropped by a different database connection, the
** trigger is not visible to the database connection that does the
** drop so the trigger cannot be dropped. This results in an
** "orphaned trigger" - a trigger whose associated table is missing.
*/
db->init.orphanTrigger = 1;
}
goto trigger_cleanup;
}
if( IsVirtual(pTab) ){