56 lines
1.5 KiB
C
56 lines
1.5 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) 1996-2000, PostgreSQL, Inc
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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 1.20 2000/06/17 21:49:04 tgl 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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/* 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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extern void RelationForgetRelation(Oid rid);
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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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/*
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* Routines for flushing/rebuilding relcache entries in various scenarios
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*/
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extern void RelationIdInvalidateRelationCacheByRelationId(Oid relationId);
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extern void RelationCacheInvalidate(void);
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extern void RelationRegisterRelation(Relation relation);
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extern void RelationPurgeLocalRelation(bool xactComitted);
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extern void RelationInitialize(void);
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extern void RelationCacheAbort(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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