1997-08-31 11:55:24 +02:00
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/*-------------------------------------------------------------------------
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*
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1999-02-14 00:22:53 +01:00
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* pg_trigger.h
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2007-02-14 02:58:58 +01:00
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* definition of the system "trigger" relation (pg_trigger)
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* along with the relation's initial contents.
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1997-08-31 11:55:24 +02:00
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*
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*
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2009-01-01 18:24:05 +01:00
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* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
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2000-01-26 06:58:53 +01:00
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* Portions Copyright (c) 1994, Regents of the University of California
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2007-02-14 02:58:58 +01:00
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*
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2009-10-15 00:14:25 +02:00
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* $PostgreSQL: pgsql/src/include/catalog/pg_trigger.h,v 1.35 2009/10/14 22:14:24 tgl Exp $
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1997-08-31 11:55:24 +02:00
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*
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* NOTES
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1997-09-07 07:04:48 +02:00
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* the genbki.sh script reads this file and generates .bki
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* information from the DATA() statements.
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1997-08-31 11:55:24 +02:00
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PG_TRIGGER_H
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#define PG_TRIGGER_H
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2008-03-27 04:57:34 +01:00
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#include "catalog/genbki.h"
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1997-08-31 11:55:24 +02:00
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/* ----------------
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1997-09-07 07:04:48 +02:00
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* pg_trigger definition. cpp turns this into
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* typedef struct FormData_pg_trigger
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2007-02-14 02:58:58 +01:00
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*
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* Note: when tgconstraint is nonzero, tgisconstraint must be true, and
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2009-07-28 04:56:31 +02:00
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* tgconstrname, tgconstrrelid, tgconstrindid, tgdeferrable, tginitdeferred
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* are redundant with the referenced pg_constraint entry. The reason we keep
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* these fields is that we support "stand-alone" constraint triggers with no
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* corresponding pg_constraint entry.
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1997-08-31 11:55:24 +02:00
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* ----------------
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1997-09-07 07:04:48 +02:00
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*/
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2005-04-14 03:38:22 +02:00
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#define TriggerRelationId 2620
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CATALOG(pg_trigger,2620)
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1997-09-07 07:04:48 +02:00
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{
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2007-02-14 02:58:58 +01:00
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Oid tgrelid; /* relation trigger is attached to */
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NameData tgname; /* trigger's name */
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1997-09-08 04:41:22 +02:00
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Oid tgfoid; /* OID of function to be called */
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int2 tgtype; /* BEFORE/AFTER UPDATE/DELETE/INSERT
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2007-02-14 02:58:58 +01:00
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* ROW/STATEMENT; see below */
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2007-11-15 22:14:46 +01:00
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char tgenabled; /* trigger's firing configuration WRT
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* session_replication_role */
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2007-02-14 02:58:58 +01:00
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bool tgisconstraint; /* trigger is a constraint trigger */
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NameData tgconstrname; /* constraint name */
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Oid tgconstrrelid; /* constraint's FROM table, if any */
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2009-07-28 04:56:31 +02:00
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Oid tgconstrindid; /* constraint's supporting index, if any */
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2007-02-14 02:58:58 +01:00
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Oid tgconstraint; /* owning pg_constraint entry, if any */
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bool tgdeferrable; /* constraint trigger is deferrable */
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bool tginitdeferred; /* constraint trigger is deferred initially */
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1997-09-08 04:41:22 +02:00
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int2 tgnargs; /* # of extra arguments in tgargs */
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2005-03-29 02:17:27 +02:00
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2009-10-15 00:14:25 +02:00
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/* VARIABLE LENGTH FIELDS (note: these are not supposed to be null) */
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int2vector tgattr; /* column numbers, if trigger is on columns */
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1997-09-08 04:41:22 +02:00
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bytea tgargs; /* first\000second\000tgnargs\000 */
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1997-08-31 11:55:24 +02:00
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} FormData_pg_trigger;
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/* ----------------
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1997-09-07 07:04:48 +02:00
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* Form_pg_trigger corresponds to a pointer to a tuple with
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* the format of pg_trigger relation.
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1997-08-31 11:55:24 +02:00
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* ----------------
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*/
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1997-09-07 07:04:48 +02:00
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typedef FormData_pg_trigger *Form_pg_trigger;
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1997-08-31 11:55:24 +02:00
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/* ----------------
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1997-09-07 07:04:48 +02:00
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* compiler constants for pg_trigger
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1997-08-31 11:55:24 +02:00
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* ----------------
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*/
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2009-07-28 04:56:31 +02:00
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#define Natts_pg_trigger 15
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1997-09-07 07:04:48 +02:00
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#define Anum_pg_trigger_tgrelid 1
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#define Anum_pg_trigger_tgname 2
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#define Anum_pg_trigger_tgfoid 3
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#define Anum_pg_trigger_tgtype 4
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1999-09-29 18:06:40 +02:00
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#define Anum_pg_trigger_tgenabled 5
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#define Anum_pg_trigger_tgisconstraint 6
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#define Anum_pg_trigger_tgconstrname 7
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#define Anum_pg_trigger_tgconstrrelid 8
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2009-07-28 04:56:31 +02:00
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#define Anum_pg_trigger_tgconstrindid 9
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#define Anum_pg_trigger_tgconstraint 10
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#define Anum_pg_trigger_tgdeferrable 11
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#define Anum_pg_trigger_tginitdeferred 12
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#define Anum_pg_trigger_tgnargs 13
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#define Anum_pg_trigger_tgattr 14
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#define Anum_pg_trigger_tgargs 15
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1997-08-31 11:55:24 +02:00
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2007-02-14 02:58:58 +01:00
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/* Bits within tgtype */
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1997-09-07 07:04:48 +02:00
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#define TRIGGER_TYPE_ROW (1 << 0)
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#define TRIGGER_TYPE_BEFORE (1 << 1)
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#define TRIGGER_TYPE_INSERT (1 << 2)
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#define TRIGGER_TYPE_DELETE (1 << 3)
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#define TRIGGER_TYPE_UPDATE (1 << 4)
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2008-03-28 01:21:56 +01:00
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#define TRIGGER_TYPE_TRUNCATE (1 << 5)
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1997-08-31 11:55:24 +02:00
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2007-02-14 02:58:58 +01:00
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/* Macros for manipulating tgtype */
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2005-05-25 23:40:43 +02:00
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#define TRIGGER_CLEAR_TYPE(type) ((type) = 0)
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1997-08-31 11:55:24 +02:00
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2005-05-25 23:40:43 +02:00
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#define TRIGGER_SETT_ROW(type) ((type) |= TRIGGER_TYPE_ROW)
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#define TRIGGER_SETT_BEFORE(type) ((type) |= TRIGGER_TYPE_BEFORE)
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#define TRIGGER_SETT_INSERT(type) ((type) |= TRIGGER_TYPE_INSERT)
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#define TRIGGER_SETT_DELETE(type) ((type) |= TRIGGER_TYPE_DELETE)
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#define TRIGGER_SETT_UPDATE(type) ((type) |= TRIGGER_TYPE_UPDATE)
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2008-03-28 01:21:56 +01:00
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#define TRIGGER_SETT_TRUNCATE(type) ((type) |= TRIGGER_TYPE_TRUNCATE)
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1997-08-31 11:55:24 +02:00
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2005-05-25 23:40:43 +02:00
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#define TRIGGER_FOR_ROW(type) ((type) & TRIGGER_TYPE_ROW)
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#define TRIGGER_FOR_BEFORE(type) ((type) & TRIGGER_TYPE_BEFORE)
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#define TRIGGER_FOR_INSERT(type) ((type) & TRIGGER_TYPE_INSERT)
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#define TRIGGER_FOR_DELETE(type) ((type) & TRIGGER_TYPE_DELETE)
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#define TRIGGER_FOR_UPDATE(type) ((type) & TRIGGER_TYPE_UPDATE)
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2008-03-28 01:21:56 +01:00
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#define TRIGGER_FOR_TRUNCATE(type) ((type) & TRIGGER_TYPE_TRUNCATE)
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2001-10-28 07:26:15 +01:00
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2001-11-05 18:46:40 +01:00
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#endif /* PG_TRIGGER_H */
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