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/*------------------------------------------------------------------------- * * relcache.h * Relation descriptor cache definitions. * * * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * $PostgreSQL: pgsql/src/include/utils/relcache.h,v 1.61 2008/01/01 19:45:59 momjian Exp $ * *------------------------------------------------------------------------- */ #ifndef RELCACHE_H #define RELCACHE_H #include "utils/rel.h" /* * Routines to open (lookup) and close a relcache entry */ extern Relation RelationIdGetRelation(Oid relationId); extern void RelationClose(Relation relation); /* * Routines to compute/retrieve additional cached information */ extern List *RelationGetIndexList(Relation relation); extern Oid RelationGetOidIndex(Relation relation); extern List *RelationGetIndexExpressions(Relation relation); extern List *RelationGetIndexPredicate(Relation relation); extern Bitmapset *RelationGetIndexAttrBitmap(Relation relation); extern void RelationSetIndexList(Relation relation, List *indexIds, Oid oidIndex); extern void RelationInitIndexAccessInfo(Relation relation); /* * Routines for backend startup */ extern void RelationCacheInitialize(void); extern void RelationCacheInitializePhase2(void); /* * Routine to create a relcache entry for an about-to-be-created relation */ extern Relation RelationBuildLocalRelation(const char *relname, Oid relnamespace, TupleDesc tupDesc, Oid relid, Oid reltablespace, bool shared_relation); /* * Routines for flushing/rebuilding relcache entries in various scenarios */ extern void RelationForgetRelation(Oid rid); extern void RelationCacheInvalidateEntry(Oid relationId); extern void RelationCacheInvalidate(void); extern void AtEOXact_RelationCache(bool isCommit); extern void AtEOSubXact_RelationCache(bool isCommit, SubTransactionId mySubid, SubTransactionId parentSubid); extern void RelationCacheMarkNewRelfilenode(Relation rel); /* * Routines to help manage rebuilding of relcache init file */ extern bool RelationIdIsInInitFile(Oid relationId); extern void RelationCacheInitFileInvalidate(bool beforeSend); extern void RelationCacheInitFileRemove(const char *dbPath); /* should be used only by relcache.c and catcache.c */ extern bool criticalRelcachesBuilt; #endif /* RELCACHE_H */