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Prototypes, definitions...

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This commit is contained in:
Vadim B. Mikheev
1997-09-04 13:26:19 +00:00
parent 989ab6b1e7
commit 9ba606cd24
2 changed files with 74 additions and 31 deletions
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56
src/include/commands/trigger.h
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@ -13,35 +13,53 @@
#include "access/htup.h"
#include "utils/rel.h"
typedef uint32 TriggerAction;
typedef uint32 TriggerEvent;
#define TRIGGER_ACTION_INSERT 0x00000000
#define TRIGGER_ACTION_DELETE 0x00000001
#define TRIGGER_ACTION_UPDATE 0x00000010
#define TRIGGER_ACTION_OPMASK 0x00000011
#define TRIGGER_ACTION_ROW 4
typedef struct TriggerData {
TriggerEvent tg_event;
Relation tg_relation;
HeapTuple tg_trigtuple;
HeapTuple tg_newtuple;
Trigger *tg_trigger;
} TriggerData;
#define TRIGGER_FIRED_BY_INSERT (action) \
(((TriggerAction) action & TRIGGER_ACTION_OPMASK) == \
TRIGGER_ACTION_INSERT)
extern TriggerData *CurrentTriggerData;
#define TRIGGER_FIRED_BY_DELETE (action) \
(((TriggerAction) action & TRIGGER_ACTION_OPMASK) == \
TRIGGER_ACTION_DELETE)
#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_FIRED_BY_UPDATE (action) \
(((TriggerAction) action & TRIGGER_ACTION_OPMASK) == \
TRIGGER_ACTION_UPDATE)
#define TRIGGER_FIRED_BY_INSERT(event) \
(((TriggerEvent) (event) & TRIGGER_EVENT_OPMASK) == \
TRIGGER_EVENT_INSERT)
#define TRIGGER_FIRED_FOR_ROW (action) \
((TriggerAction) action & TRIGGER_ACTION_ROW)
#define TRIGGER_FIRED_BY_DELETE(event) \
(((TriggerEvent) (event) & TRIGGER_EVENT_OPMASK) == \
TRIGGER_EVENT_DELETE)
#define TRIGGER_FIRED_FOR_STATEMENT (action) \
(!TRIGGER_FIRED_FOR_ROW (action))
#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))
extern void CreateTrigger (CreateTrigStmt *stmt);
extern void DropTrigger (DropTrigStmt *stmt);
extern void RelationRemoveTriggers (Relation rel);
extern HeapTuple ExecBRInsertTriggers (Relation rel, HeapTuple tuple);
extern void ExecARInsertTriggers (Relation rel, HeapTuple tuple);