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77 lines
2.0 KiB
C
77 lines
2.0 KiB
C
/*-------------------------------------------------------------------------
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*
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* relcache.h
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* Relation descriptor cache definitions.
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*
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*
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* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Id: relcache.h,v 1.28 2001/10/28 06:26:09 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef RELCACHE_H
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#define RELCACHE_H
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#include "utils/rel.h"
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/*
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* relation lookup routines
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*/
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extern Relation RelationIdGetRelation(Oid relationId);
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extern Relation RelationNameGetRelation(const char *relationName);
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extern Relation RelationNodeCacheGetRelation(RelFileNode rnode);
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/* finds an existing cache entry, but won't make a new one */
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extern Relation RelationIdCacheGetRelation(Oid relationId);
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extern void RelationClose(Relation relation);
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/*
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* Routines to compute/retrieve additional cached information
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*/
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extern List *RelationGetIndexList(Relation relation);
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extern void RelationInitIndexAccessInfo(Relation relation);
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/*
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* Routines for backend startup
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*/
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extern void RelationCacheInitialize(void);
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extern void RelationCacheInitializePhase2(void);
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/*
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* Routine to create a relcache entry for an about-to-be-created relation
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*/
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extern Relation RelationBuildLocalRelation(const char *relname,
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TupleDesc tupDesc,
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Oid relid, Oid dbid,
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bool nailit);
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/*
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* Routines for flushing/rebuilding relcache entries in various scenarios
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*/
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extern void RelationForgetRelation(Oid rid);
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extern void RelationIdInvalidateRelationCacheByRelationId(Oid relationId);
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extern void RelationCacheInvalidate(void);
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extern void RelationPurgeLocalRelation(bool xactComitted);
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extern void RelationCacheAbort(void);
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/* XLOG support */
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extern void CreateDummyCaches(void);
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extern void DestroyDummyCaches(void);
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/*
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* both vacuum.c and relcache.c need to know the name of the relcache init file
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*/
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#define RELCACHE_INIT_FILENAME "pg_internal.init"
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#endif /* RELCACHE_H */
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