diff options
Diffstat (limited to 'src/include/commands/trigger.h')
| -rw-r--r-- | src/include/commands/trigger.h | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/src/include/commands/trigger.h b/src/include/commands/trigger.h deleted file mode 100644 index 9ff6c8e1eac..00000000000 --- a/src/include/commands/trigger.h +++ /dev/null @@ -1,184 +0,0 @@ -/*------------------------------------------------------------------------- - * - * trigger.h - * Declarations for trigger handling. - * - * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group - * Portions Copyright (c) 1994, Regents of the University of California - * - * $Id: trigger.h,v 1.36 2002/06/20 20:29:49 momjian Exp $ - * - *------------------------------------------------------------------------- - */ -#ifndef TRIGGER_H -#define TRIGGER_H - -#include "nodes/execnodes.h" -#include "nodes/parsenodes.h" - -/* - * TriggerData is the node type that is passed as fmgr "context" info - * when a function is called by the trigger manager. - */ - -#define CALLED_AS_TRIGGER(fcinfo) \ - ((fcinfo)->context != NULL && IsA((fcinfo)->context, TriggerData)) - -typedef uint32 TriggerEvent; - -typedef struct TriggerData -{ - NodeTag type; - TriggerEvent tg_event; - Relation tg_relation; - HeapTuple tg_trigtuple; - HeapTuple tg_newtuple; - Trigger *tg_trigger; -} TriggerData; - -/* TriggerEvent bit flags */ - -#define TRIGGER_EVENT_INSERT 0x00000000 -#define TRIGGER_EVENT_DELETE 0x00000001 -#define TRIGGER_EVENT_UPDATE 0x00000002 -#define TRIGGER_EVENT_OPMASK 0x00000003 -#define TRIGGER_EVENT_ROW 0x00000004 -#define TRIGGER_EVENT_BEFORE 0x00000008 - -#define TRIGGER_DEFERRED_DONE 0x00000010 -#define TRIGGER_DEFERRED_CANCELED 0x00000020 -#define TRIGGER_DEFERRED_DEFERRABLE 0x00000040 -#define TRIGGER_DEFERRED_INITDEFERRED 0x00000080 -#define TRIGGER_DEFERRED_HAS_BEFORE 0x00000100 - -#define TRIGGER_FIRED_BY_INSERT(event) \ - (((TriggerEvent) (event) & TRIGGER_EVENT_OPMASK) == \ - TRIGGER_EVENT_INSERT) - -#define TRIGGER_FIRED_BY_DELETE(event) \ - (((TriggerEvent) (event) & TRIGGER_EVENT_OPMASK) == \ - TRIGGER_EVENT_DELETE) - -#define TRIGGER_FIRED_BY_UPDATE(event) \ - (((TriggerEvent) (event) & TRIGGER_EVENT_OPMASK) == \ - TRIGGER_EVENT_UPDATE) - -#define TRIGGER_FIRED_FOR_ROW(event) \ - ((TriggerEvent) (event) & TRIGGER_EVENT_ROW) - -#define TRIGGER_FIRED_FOR_STATEMENT(event) \ - (!TRIGGER_FIRED_FOR_ROW (event)) - -#define TRIGGER_FIRED_BEFORE(event) \ - ((TriggerEvent) (event) & TRIGGER_EVENT_BEFORE) - -#define TRIGGER_FIRED_AFTER(event) \ - (!TRIGGER_FIRED_BEFORE (event)) - -/* - * RI trigger function arguments are stored in pg_trigger.tgargs bytea - * - * constrname\0fkrel\0pkrel\0matchtype\0fkatt\0pkatt\0fkatt\0pkatt\0... - * - * There are one or more pairs of fkatt/pkatt names. - * - * The relation names are no longer of much use since they are not - * guaranteed unique; they are present only for backwards compatibility. - * Use the tgrelid and tgconstrrelid fields to identify the referenced - * relations, instead. (But note that which is which will depend on which - * trigger you are looking at!) - */ -#define RI_CONSTRAINT_NAME_ARGNO 0 -#define RI_FK_RELNAME_ARGNO 1 -#define RI_PK_RELNAME_ARGNO 2 -#define RI_MATCH_TYPE_ARGNO 3 -#define RI_FIRST_ATTNAME_ARGNO 4 /* first attname pair starts here */ - -#define RI_KEYPAIR_FK_IDX 0 -#define RI_KEYPAIR_PK_IDX 1 - -#define RI_MAX_NUMKEYS INDEX_MAX_KEYS -#define RI_MAX_ARGUMENTS (RI_FIRST_ATTNAME_ARGNO + (RI_MAX_NUMKEYS * 2)) - - -extern void CreateTrigger(CreateTrigStmt *stmt); -extern void DropTrigger(Oid relid, const char *trigname); -extern void RelationRemoveTriggers(Relation rel); - -extern void renametrig(Oid relid, const char *oldname, const char *newname); - -extern void RelationBuildTriggers(Relation relation); - -extern void FreeTriggerDesc(TriggerDesc *trigdesc); - -extern bool equalTriggerDescs(TriggerDesc *trigdesc1, TriggerDesc *trigdesc2); - -extern HeapTuple ExecBRInsertTriggers(EState *estate, - ResultRelInfo *relinfo, - HeapTuple trigtuple); -extern void ExecARInsertTriggers(EState *estate, - ResultRelInfo *relinfo, - HeapTuple trigtuple); -extern bool ExecBRDeleteTriggers(EState *estate, - ResultRelInfo *relinfo, - ItemPointer tupleid); -extern void ExecARDeleteTriggers(EState *estate, - ResultRelInfo *relinfo, - ItemPointer tupleid); -extern HeapTuple ExecBRUpdateTriggers(EState *estate, - ResultRelInfo *relinfo, - ItemPointer tupleid, - HeapTuple newtuple); -extern void ExecARUpdateTriggers(EState *estate, - ResultRelInfo *relinfo, - ItemPointer tupleid, - HeapTuple newtuple); - - -/* - * Deferred trigger stuff - */ -typedef struct DeferredTriggerStatusData -{ - Oid dts_tgoid; - bool dts_tgisdeferred; -} DeferredTriggerStatusData; - -typedef struct DeferredTriggerStatusData *DeferredTriggerStatus; - -typedef struct DeferredTriggerEventItem -{ - Oid dti_tgoid; - int32 dti_state; -} DeferredTriggerEventItem; - -typedef struct DeferredTriggerEventData *DeferredTriggerEvent; - -typedef struct DeferredTriggerEventData -{ - DeferredTriggerEvent dte_next; /* list link */ - int32 dte_event; - Oid dte_relid; - ItemPointerData dte_oldctid; - ItemPointerData dte_newctid; - int32 dte_n_items; - /* dte_item is actually a variable-size array, of length dte_n_items */ - DeferredTriggerEventItem dte_item[1]; -} DeferredTriggerEventData; - - -extern void DeferredTriggerInit(void); -extern void DeferredTriggerBeginXact(void); -extern void DeferredTriggerEndQuery(void); -extern void DeferredTriggerEndXact(void); -extern void DeferredTriggerAbortXact(void); - -extern void DeferredTriggerSetState(ConstraintsSetStmt *stmt); - - -/* - * in utils/adt/ri_triggers.c - */ -extern bool RI_FKey_keyequal_upd(TriggerData *trigdata); - -#endif /* TRIGGER_H */ |