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/* ----------
* ri_triggers.c
*
* Generic trigger procedures for referential integrity constraint
* checks.
*
* 1999 Jan Wieck
*
* $Header: /cvsroot/pgsql/src/backend/utils/adt/ri_triggers.c,v 1.1 1999/09/30 14:54:22 wieck Exp $
*
* ----------
*/
#include "postgres.h"
#include "fmgr.h"
#include "access/heapam.h"
#include "catalog/pg_proc.h"
#include "catalog/pg_type.h"
#include "commands/trigger.h"
#include "executor/spi.h"
#include "utils/builtins.h"
#include "utils/syscache.h"
/* ----------
* RI_FKey_check_ins -
*
* Check foreign key existance at insert event on FK table.
* ----------
*/
HeapTuple
RI_FKey_check_ins (FmgrInfo *proinfo)
{
CurrentTriggerData = NULL;
elog(NOTICE, "RI_FKey_check_ins() called\n");
return NULL;
}
/* ----------
* RI_FKey_check_upd -
*
* Check foreign key existance at update event on FK table.
* ----------
*/
HeapTuple
RI_FKey_check_upd (FmgrInfo *proinfo)
{
CurrentTriggerData = NULL;
elog(NOTICE, "RI_FKey_check_upd() called\n");
return NULL;
}
/* ----------
* RI_FKey_cascade_del -
*
* Cascaded delete foreign key references at delete event on PK table.
* ----------
*/
HeapTuple
RI_FKey_cascade_del (FmgrInfo *proinfo)
{
CurrentTriggerData = NULL;
elog(NOTICE, "RI_FKey_cascade_del() called\n");
return NULL;
}
/* ----------
* RI_FKey_cascade_upd -
*
* Cascaded update/delete foreign key references at update event on PK table.
* ----------
*/
HeapTuple
RI_FKey_cascade_upd (FmgrInfo *proinfo)
{
CurrentTriggerData = NULL;
elog(NOTICE, "RI_FKey_cascade_upd() called\n");
return NULL;
}
/* ----------
* RI_FKey_restrict_del -
*
* Restrict delete from PK table to rows unreferenced by foreign key.
* ----------
*/
HeapTuple
RI_FKey_restrict_del (FmgrInfo *proinfo)
{
CurrentTriggerData = NULL;
elog(NOTICE, "RI_FKey_restrict_del() called\n");
return NULL;
}
/* ----------
* RI_FKey_restrict_upd -
*
* Restrict update of PK to rows unreferenced by foreign key.
* ----------
*/
HeapTuple
RI_FKey_restrict_upd (FmgrInfo *proinfo)
{
CurrentTriggerData = NULL;
elog(NOTICE, "RI_FKey_restrict_upd() called\n");
return NULL;
}
/* ----------
* RI_FKey_setnull_del -
*
* Set foreign key references to NULL values at delete event on PK table.
* ----------
*/
HeapTuple
RI_FKey_setnull_del (FmgrInfo *proinfo)
{
CurrentTriggerData = NULL;
elog(NOTICE, "RI_FKey_setnull_del() called\n");
return NULL;
}
/* ----------
* RI_FKey_setnull_upd -
*
* Set foreign key references to NULL at update event on PK table.
* ----------
*/
HeapTuple
RI_FKey_setnull_upd (FmgrInfo *proinfo)
{
CurrentTriggerData = NULL;
elog(NOTICE, "RI_FKey_setnull_upd() called\n");
return NULL;
}
/* ----------
* RI_FKey_setdefault_del -
*
* Set foreign key references to defaults at delete event on PK table.
* ----------
*/
HeapTuple
RI_FKey_setdefault_del (FmgrInfo *proinfo)
{
CurrentTriggerData = NULL;
elog(NOTICE, "RI_FKey_setdefault_del() called\n");
return NULL;
}
/* ----------
* RI_FKey_setdefault_upd -
*
* Set foreign key references to defaults at update event on PK table.
* ----------
*/
HeapTuple
RI_FKey_setdefault_upd (FmgrInfo *proinfo)
{
CurrentTriggerData = NULL;
elog(NOTICE, "RI_FKey_setdefault_upd() called\n");
return NULL;
}
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