Added utils/adt/ri_triggers with empty shells for the

FOREIGN KEY triggers.

Added pg_proc entries for all the new functions.

Jan

src/backend/utils/adt/ri_triggers.c

@@ -0,0 +1,184 @@
+/* ----------
+ * 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;
+}
+
+