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/*-------------------------------------------------------------------------
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*
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* trigger.h--
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* prototypes for trigger.c.
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*
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef TRIGGER_H
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#define TRIGGER_H
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#include "access/tupdesc.h"
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#include "access/htup.h"
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#include "utils/rel.h"
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typedef uint32 TriggerAction;
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#define TRIGGER_ACTION_INSERT 0x00000000
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#define TRIGGER_ACTION_DELETE 0x00000001
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#define TRIGGER_ACTION_UPDATE 0x00000010
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#define TRIGGER_ACTION_OPMASK 0x00000011
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#define TRIGGER_ACTION_ROW 4
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#define TRIGGER_FIRED_BY_INSERT (action) \
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(((TriggerAction) action & TRIGGER_ACTION_OPMASK) == \
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TRIGGER_ACTION_INSERT)
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#define TRIGGER_FIRED_BY_DELETE (action) \
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(((TriggerAction) action & TRIGGER_ACTION_OPMASK) == \
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TRIGGER_ACTION_DELETE)
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#define TRIGGER_FIRED_BY_UPDATE (action) \
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(((TriggerAction) action & TRIGGER_ACTION_OPMASK) == \
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TRIGGER_ACTION_UPDATE)
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#define TRIGGER_FIRED_FOR_ROW (action) \
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((TriggerAction) action & TRIGGER_ACTION_ROW)
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#define TRIGGER_FIRED_FOR_STATEMENT (action) \
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(!TRIGGER_FIRED_FOR_ROW (action))
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extern void CreateTrigger (CreateTrigStmt *stmt);
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extern void DropTrigger (DropTrigStmt *stmt);
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extern HeapTuple ExecBRInsertTriggers (Relation rel, HeapTuple tuple);
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extern void ExecARInsertTriggers (Relation rel, HeapTuple tuple);
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extern bool ExecBRDeleteTriggers (Relation rel, ItemPointer tupleid);
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extern void ExecARDeleteTriggers (Relation rel, ItemPointer tupleid);
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extern HeapTuple ExecBRUpdateTriggers (Relation rel, ItemPointer tupleid, HeapTuple tuple);
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extern void ExecARUpdateTriggers (Relation rel, ItemPointer tupleid, HeapTuple tuple);
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#endif /* TRIGGER_H */
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