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alter.h
(1009 B)
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async.h
(1.79 KB)
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cluster.h
(1.14 KB)
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collationcmds.h
(919 B)
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comment.h
(1.33 KB)
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conversioncmds.h
(941 B)
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copy.h
(1.21 KB)
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createas.h
(801 B)
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dbcommands.h
(2.07 KB)
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defrem.h
(7.64 KB)
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discard.h
(471 B)
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explain.h
(2.92 KB)
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extension.h
(1.53 KB)
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lockcmds.h
(559 B)
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portalcmds.h
(896 B)
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prepare.h
(2.03 KB)
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proclang.h
(784 B)
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schemacmds.h
(843 B)
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seclabel.h
(970 B)
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sequence.h
(1.95 KB)
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tablecmds.h
(2.58 KB)
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tablespace.h
(1.76 KB)
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trigger.h
(6.65 KB)
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typecmds.h
(2.02 KB)
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user.h
(1.08 KB)
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vacuum.h
(6.76 KB)
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variable.h
(1.84 KB)
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view.h
(510 B)
Editing: trigger.h
/*------------------------------------------------------------------------- * * trigger.h * Declarations for trigger handling. * * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/commands/trigger.h * *------------------------------------------------------------------------- */ #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; Buffer tg_trigtuplebuf; Buffer tg_newtuplebuf; } TriggerData; /* * TriggerEvent bit flags * * Note that we assume different event types (INSERT/DELETE/UPDATE/TRUNCATE) * can't be OR'd together in a single TriggerEvent. This is unlike the * situation for pg_trigger rows, so pg_trigger.tgtype uses a different * representation! */ #define TRIGGER_EVENT_INSERT 0x00000000 #define TRIGGER_EVENT_DELETE 0x00000001 #define TRIGGER_EVENT_UPDATE 0x00000002 #define TRIGGER_EVENT_TRUNCATE 0x00000003 #define TRIGGER_EVENT_OPMASK 0x00000003 #define TRIGGER_EVENT_ROW 0x00000004 #define TRIGGER_EVENT_BEFORE 0x00000008 #define TRIGGER_EVENT_AFTER 0x00000000 #define TRIGGER_EVENT_INSTEAD 0x00000010 #define TRIGGER_EVENT_TIMINGMASK 0x00000018 /* More TriggerEvent flags, used only within trigger.c */ #define AFTER_TRIGGER_DEFERRABLE 0x00000020 #define AFTER_TRIGGER_INITDEFERRED 0x00000040 #define TRIGGER_FIRED_BY_INSERT(event) \ (((event) & TRIGGER_EVENT_OPMASK) == TRIGGER_EVENT_INSERT) #define TRIGGER_FIRED_BY_DELETE(event) \ (((event) & TRIGGER_EVENT_OPMASK) == TRIGGER_EVENT_DELETE) #define TRIGGER_FIRED_BY_UPDATE(event) \ (((event) & TRIGGER_EVENT_OPMASK) == TRIGGER_EVENT_UPDATE) #define TRIGGER_FIRED_BY_TRUNCATE(event) \ (((event) & TRIGGER_EVENT_OPMASK) == TRIGGER_EVENT_TRUNCATE) #define TRIGGER_FIRED_FOR_ROW(event) \ ((event) & TRIGGER_EVENT_ROW) #define TRIGGER_FIRED_FOR_STATEMENT(event) \ (!TRIGGER_FIRED_FOR_ROW(event)) #define TRIGGER_FIRED_BEFORE(event) \ (((event) & TRIGGER_EVENT_TIMINGMASK) == TRIGGER_EVENT_BEFORE) #define TRIGGER_FIRED_AFTER(event) \ (((event) & TRIGGER_EVENT_TIMINGMASK) == TRIGGER_EVENT_AFTER) #define TRIGGER_FIRED_INSTEAD(event) \ (((event) & TRIGGER_EVENT_TIMINGMASK) == TRIGGER_EVENT_INSTEAD) /* * Definitions for replication role based firing. */ #define SESSION_REPLICATION_ROLE_ORIGIN 0 #define SESSION_REPLICATION_ROLE_REPLICA 1 #define SESSION_REPLICATION_ROLE_LOCAL 2 extern PGDLLIMPORT int SessionReplicationRole; /* * States at which a trigger can be fired. These are the * possible values for pg_trigger.tgenabled. */ #define TRIGGER_FIRES_ON_ORIGIN 'O' #define TRIGGER_FIRES_ALWAYS 'A' #define TRIGGER_FIRES_ON_REPLICA 'R' #define TRIGGER_DISABLED 'D' extern Oid CreateTrigger(CreateTrigStmt *stmt, const char *queryString, Oid relOid, Oid refRelOid, Oid constraintOid, Oid indexOid, bool isInternal); extern void RemoveTriggerById(Oid trigOid); extern Oid get_trigger_oid(Oid relid, const char *name, bool missing_ok); extern void renametrig(RenameStmt *stmt); extern void EnableDisableTrigger(Relation rel, const char *tgname, char fires_when, bool skip_system); extern void RelationBuildTriggers(Relation relation); extern TriggerDesc *CopyTriggerDesc(TriggerDesc *trigdesc); extern void FreeTriggerDesc(TriggerDesc *trigdesc); extern void ExecBSInsertTriggers(EState *estate, ResultRelInfo *relinfo); extern void ExecASInsertTriggers(EState *estate, ResultRelInfo *relinfo); extern TupleTableSlot *ExecBRInsertTriggers(EState *estate, ResultRelInfo *relinfo, TupleTableSlot *slot); extern void ExecARInsertTriggers(EState *estate, ResultRelInfo *relinfo, HeapTuple trigtuple, List *recheckIndexes); extern TupleTableSlot *ExecIRInsertTriggers(EState *estate, ResultRelInfo *relinfo, TupleTableSlot *slot); extern void ExecBSDeleteTriggers(EState *estate, ResultRelInfo *relinfo); extern void ExecASDeleteTriggers(EState *estate, ResultRelInfo *relinfo); extern bool ExecBRDeleteTriggers(EState *estate, EPQState *epqstate, ResultRelInfo *relinfo, ItemPointer tupleid); extern void ExecARDeleteTriggers(EState *estate, ResultRelInfo *relinfo, ItemPointer tupleid); extern bool ExecIRDeleteTriggers(EState *estate, ResultRelInfo *relinfo, HeapTuple trigtuple); extern void ExecBSUpdateTriggers(EState *estate, ResultRelInfo *relinfo); extern void ExecASUpdateTriggers(EState *estate, ResultRelInfo *relinfo); extern TupleTableSlot *ExecBRUpdateTriggers(EState *estate, EPQState *epqstate, ResultRelInfo *relinfo, ItemPointer tupleid, TupleTableSlot *slot); extern void ExecARUpdateTriggers(EState *estate, ResultRelInfo *relinfo, ItemPointer tupleid, HeapTuple newtuple, List *recheckIndexes); extern TupleTableSlot *ExecIRUpdateTriggers(EState *estate, ResultRelInfo *relinfo, HeapTuple trigtuple, TupleTableSlot *slot); extern void ExecBSTruncateTriggers(EState *estate, ResultRelInfo *relinfo); extern void ExecASTruncateTriggers(EState *estate, ResultRelInfo *relinfo); extern void AfterTriggerBeginXact(void); extern void AfterTriggerBeginQuery(void); extern void AfterTriggerEndQuery(EState *estate); extern void AfterTriggerFireDeferred(void); extern void AfterTriggerEndXact(bool isCommit); extern void AfterTriggerBeginSubXact(void); extern void AfterTriggerEndSubXact(bool isCommit); extern void AfterTriggerSetState(ConstraintsSetStmt *stmt); extern bool AfterTriggerPendingOnRel(Oid relid); /* * in utils/adt/ri_triggers.c */ extern bool RI_FKey_keyequal_upd_pk(Trigger *trigger, Relation pk_rel, HeapTuple old_row, HeapTuple new_row); extern bool RI_FKey_keyequal_upd_fk(Trigger *trigger, Relation fk_rel, HeapTuple old_row, HeapTuple new_row); extern bool RI_Initial_Check(Trigger *trigger, Relation fk_rel, Relation pk_rel); /* result values for RI_FKey_trigger_type: */ #define RI_TRIGGER_PK 1 /* is a trigger on the PK relation */ #define RI_TRIGGER_FK 2 /* is a trigger on the FK relation */ #define RI_TRIGGER_NONE 0 /* is not an RI trigger function */ extern int RI_FKey_trigger_type(Oid tgfoid); extern Datum pg_trigger_depth(PG_FUNCTION_ARGS); #endif /* TRIGGER_H */
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