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to save a little bit of backend startup time. This way, the first backend started after a VACUUM will rebuild the init file with up-to-date statistics for the critical system indexes.
43 lines
1.2 KiB
C
43 lines
1.2 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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* Copyright (c) 1994, Regents of the University of California
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*
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* $Id: relcache.h,v 1.12 1999/05/01 19:09:43 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 RelationIdCacheGetRelation(Oid relationId);
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extern Relation RelationIdGetRelation(Oid relationId);
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extern Relation RelationNameGetRelation(char *relationName);
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extern void RelationClose(Relation relation);
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extern void RelationForgetRelation(Oid rid);
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extern void RelationIdInvalidateRelationCacheByRelationId(Oid relationId);
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extern void RelationIdInvalidateRelationCacheByAccessMethodId(Oid accessMethodId);
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extern void RelationCacheInvalidate(bool onlyFlushReferenceCountZero);
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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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/*
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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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