Added utils/adt/ri_triggers with empty shells for the
FOREIGN KEY triggers. Added pg_proc entries for all the new functions. Jan
This commit is contained in:
Jan Wieck
parent
daaeafd9e1
commit
ccecf1fa46
@ -155,7 +155,8 @@ CreateTrigger(CreateTrigStmt *stmt)
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if (((Form_pg_proc) GETSTRUCT(tuple))->prorettype != 0)
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elog(ERROR, "CreateTrigger: function %s() must return OPAQUE",
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stmt->funcname);
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if (((Form_pg_proc) GETSTRUCT(tuple))->prolang != ClanguageId)
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if (((Form_pg_proc) GETSTRUCT(tuple))->prolang != ClanguageId &&
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((Form_pg_proc) GETSTRUCT(tuple))->prolang != INTERNALlanguageId)
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{
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HeapTuple langTup;
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@ -166,7 +167,7 @@ CreateTrigger(CreateTrigStmt *stmt)
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elog(ERROR, "CreateTrigger: cache lookup for PL failed");
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if (((Form_pg_language) GETSTRUCT(langTup))->lanispl == false)
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elog(ERROR, "CreateTrigger: only C and PL functions are supported");
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elog(ERROR, "CreateTrigger: only builtin, C and PL functions are supported");
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}
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MemSet(nulls, ' ', Natts_pg_trigger * sizeof(char));
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@ -4,7 +4,7 @@
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# Makefile for utils/adt
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#
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# IDENTIFICATION
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# $Header: /cvsroot/pgsql/src/backend/utils/adt/Makefile,v 1.25 1999/07/22 18:30:08 momjian Exp $
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# $Header: /cvsroot/pgsql/src/backend/utils/adt/Makefile,v 1.26 1999/09/30 14:54:22 wieck Exp $
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#
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#-------------------------------------------------------------------------
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@ -34,7 +34,8 @@ OBJS = acl.o arrayfuncs.o arrayutils.o bool.o cash.o char.o chunk.o \
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oid.o oracle_compat.o \
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regexp.o regproc.o ruleutils.o selfuncs.o sets.o \
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tid.o timestamp.o varchar.o varlena.o version.o \
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network.o mac.o inet_net_ntop.o inet_net_pton.o
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network.o mac.o inet_net_ntop.o inet_net_pton.o \
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ri_triggers.o
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all: SUBSYS.o
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184
src/backend/utils/adt/ri_triggers.c
Normal file
184
src/backend/utils/adt/ri_triggers.c
Normal file
@ -0,0 +1,184 @@
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/* ----------
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* ri_triggers.c
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*
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* Generic trigger procedures for referential integrity constraint
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* checks.
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*
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* 1999 Jan Wieck
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*
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/ri_triggers.c,v 1.1 1999/09/30 14:54:22 wieck Exp $
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*
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* ----------
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*/
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#include "postgres.h"
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#include "fmgr.h"
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#include "access/heapam.h"
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#include "catalog/pg_proc.h"
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#include "catalog/pg_type.h"
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#include "commands/trigger.h"
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#include "executor/spi.h"
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#include "utils/builtins.h"
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#include "utils/syscache.h"
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/* ----------
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* RI_FKey_check_ins -
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*
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* Check foreign key existance at insert event on FK table.
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* ----------
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*/
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HeapTuple
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RI_FKey_check_ins (FmgrInfo *proinfo)
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{
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CurrentTriggerData = NULL;
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elog(NOTICE, "RI_FKey_check_ins() called\n");
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return NULL;
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}
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/* ----------
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* RI_FKey_check_upd -
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*
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* Check foreign key existance at update event on FK table.
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* ----------
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*/
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HeapTuple
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RI_FKey_check_upd (FmgrInfo *proinfo)
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{
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CurrentTriggerData = NULL;
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elog(NOTICE, "RI_FKey_check_upd() called\n");
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return NULL;
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}
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/* ----------
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* RI_FKey_cascade_del -
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*
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* Cascaded delete foreign key references at delete event on PK table.
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* ----------
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*/
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HeapTuple
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RI_FKey_cascade_del (FmgrInfo *proinfo)
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{
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CurrentTriggerData = NULL;
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elog(NOTICE, "RI_FKey_cascade_del() called\n");
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return NULL;
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}
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/* ----------
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* RI_FKey_cascade_upd -
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*
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* Cascaded update/delete foreign key references at update event on PK table.
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* ----------
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*/
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HeapTuple
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RI_FKey_cascade_upd (FmgrInfo *proinfo)
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{
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CurrentTriggerData = NULL;
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elog(NOTICE, "RI_FKey_cascade_upd() called\n");
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return NULL;
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}
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/* ----------
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* RI_FKey_restrict_del -
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*
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* Restrict delete from PK table to rows unreferenced by foreign key.
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* ----------
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*/
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HeapTuple
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RI_FKey_restrict_del (FmgrInfo *proinfo)
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{
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CurrentTriggerData = NULL;
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elog(NOTICE, "RI_FKey_restrict_del() called\n");
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return NULL;
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}
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/* ----------
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* RI_FKey_restrict_upd -
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*
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* Restrict update of PK to rows unreferenced by foreign key.
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* ----------
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*/
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HeapTuple
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RI_FKey_restrict_upd (FmgrInfo *proinfo)
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{
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CurrentTriggerData = NULL;
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elog(NOTICE, "RI_FKey_restrict_upd() called\n");
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return NULL;
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}
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/* ----------
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* RI_FKey_setnull_del -
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*
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* Set foreign key references to NULL values at delete event on PK table.
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* ----------
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*/
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HeapTuple
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RI_FKey_setnull_del (FmgrInfo *proinfo)
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{
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CurrentTriggerData = NULL;
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elog(NOTICE, "RI_FKey_setnull_del() called\n");
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return NULL;
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}
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/* ----------
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* RI_FKey_setnull_upd -
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*
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* Set foreign key references to NULL at update event on PK table.
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* ----------
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*/
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HeapTuple
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RI_FKey_setnull_upd (FmgrInfo *proinfo)
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{
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CurrentTriggerData = NULL;
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elog(NOTICE, "RI_FKey_setnull_upd() called\n");
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return NULL;
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}
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/* ----------
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* RI_FKey_setdefault_del -
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*
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* Set foreign key references to defaults at delete event on PK table.
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* ----------
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*/
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HeapTuple
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RI_FKey_setdefault_del (FmgrInfo *proinfo)
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{
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CurrentTriggerData = NULL;
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elog(NOTICE, "RI_FKey_setdefault_del() called\n");
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return NULL;
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}
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/* ----------
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* RI_FKey_setdefault_upd -
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*
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* Set foreign key references to defaults at update event on PK table.
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* ----------
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*/
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HeapTuple
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RI_FKey_setdefault_upd (FmgrInfo *proinfo)
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{
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CurrentTriggerData = NULL;
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elog(NOTICE, "RI_FKey_setdefault_upd() called\n");
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return NULL;
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}
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@ -6,7 +6,7 @@
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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* $Id: pg_proc.h,v 1.103 1999/09/29 21:13:30 wieck Exp $
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* $Id: pg_proc.h,v 1.104 1999/09/30 14:54:23 wieck Exp $
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*
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* NOTES
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* The script catalog/genbki.sh reads this file and generates .bki
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@ -2112,6 +2112,28 @@ DESCR("user name by UID (with fallback)");
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DATA(insert OID = 1643 ( pg_get_indexdef PGUID 11 f t f 1 f 25 "26" 100 0 0 100 pg_get_indexdef - ));
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DESCR("index description");
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/* Generic referential integrity constraint triggers */
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DATA(insert OID = 1644 ( RI_FKey_check_ins PGUID 11 f t f 0 f 0 "" 100 0 0 100 RI_FKey_check_ins - ));
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DESCR("referential integrity FOREIGN KEY ... REFERENCES");
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DATA(insert OID = 1645 ( RI_FKey_check_upd PGUID 11 f t f 0 f 0 "" 100 0 0 100 RI_FKey_check_upd - ));
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DESCR("referential integrity FOREIGN KEY ... REFERENCES");
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DATA(insert OID = 1646 ( RI_FKey_cascade_del PGUID 11 f t f 0 f 0 "" 100 0 0 100 RI_FKey_cascade_del - ));
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DESCR("referential integrity ON DELETE CASCADE");
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DATA(insert OID = 1647 ( RI_FKey_cascade_upd PGUID 11 f t f 0 f 0 "" 100 0 0 100 RI_FKey_cascade_upd - ));
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DESCR("referential integrity ON UPDATE CASCADE");
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DATA(insert OID = 1648 ( RI_FKey_restrict_del PGUID 11 f t f 0 f 0 "" 100 0 0 100 RI_FKey_restrict_del - ));
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DESCR("referential integrity ON DELETE RESTRICT");
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DATA(insert OID = 1649 ( RI_FKey_restrict_upd PGUID 11 f t f 0 f 0 "" 100 0 0 100 RI_FKey_restrict_upd - ));
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DESCR("referential integrity ON UPDATE RESTRICT");
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DATA(insert OID = 1650 ( RI_FKey_setnull_del PGUID 11 f t f 0 f 0 "" 100 0 0 100 RI_FKey_setnull_del - ));
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DESCR("referential integrity ON DELETE SET NULL");
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DATA(insert OID = 1651 ( RI_FKey_setnull_upd PGUID 11 f t f 0 f 0 "" 100 0 0 100 RI_FKey_setnull_upd - ));
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DESCR("referential integrity ON UPDATE SET NULL");
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DATA(insert OID = 1652 ( RI_FKey_setdefault_del PGUID 11 f t f 0 f 0 "" 100 0 0 100 RI_FKey_setdefault_del - ));
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DESCR("referential integrity ON DELETE SET DEFAULT");
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DATA(insert OID = 1653 ( RI_FKey_setdefault_upd PGUID 11 f t f 0 f 0 "" 100 0 0 100 RI_FKey_setdefault_upd - ));
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DESCR("referential integrity ON UPDATE SET DEFAULT");
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/* for mac type support */
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DATA(insert OID = 436 ( macaddr_in PGUID 11 f t t 1 f 829 "0" 100 0 0 100 macaddr_in - ));
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DESCR("(internal)");
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@ -6,7 +6,7 @@
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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* $Id: builtins.h,v 1.86 1999/09/29 21:13:31 wieck Exp $
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* $Id: builtins.h,v 1.87 1999/09/30 14:54:24 wieck Exp $
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*
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* NOTES
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* This should normally only be included by fmgr.h.
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@ -30,6 +30,7 @@
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#include "utils/int8.h"
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#include "utils/nabstime.h"
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#include "utils/numeric.h"
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#include "access/heapam.h" /* for HeapTuple */
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/*
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* Defined in adt/
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@ -600,5 +601,16 @@ float32 numeric_float4(Numeric num);
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Numeric float8_numeric(float64 val);
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float64 numeric_float8(Numeric num);
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/* ri_triggers.c */
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HeapTuple RI_FKey_check_ins(FmgrInfo *proinfo);
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HeapTuple RI_FKey_check_upd(FmgrInfo *proinfo);
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HeapTuple RI_FKey_cascade_del(FmgrInfo *proinfo);
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HeapTuple RI_FKey_cascade_upd(FmgrInfo *proinfo);
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HeapTuple RI_FKey_restrict_del(FmgrInfo *proinfo);
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HeapTuple RI_FKey_restrict_upd(FmgrInfo *proinfo);
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HeapTuple RI_FKey_setnull_del(FmgrInfo *proinfo);
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HeapTuple RI_FKey_setnull_upd(FmgrInfo *proinfo);
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HeapTuple RI_FKey_setdefault_del(FmgrInfo *proinfo);
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HeapTuple RI_FKey_setdefault_upd(FmgrInfo *proinfo);
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#endif /* BUILTINS_H */
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