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when user-defined functions used in a plan are modified. Also invalidate plans when schemas, operators, or operator classes are modified; but for these cases we just invalidate everything rather than tracking exact dependencies, since these types of objects seldom change in a production database. Tom Lane; loosely based on a patch by Martin Pihlak.
64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/*-------------------------------------------------------------------------
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*
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* inval.h
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* POSTGRES cache invalidation dispatcher definitions.
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*
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*
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* Portions Copyright (c) 1996-2008, 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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* $PostgreSQL: pgsql/src/include/utils/inval.h,v 1.44 2008/09/09 18:58:09 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef INVAL_H
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#define INVAL_H
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#include "access/htup.h"
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#include "utils/relcache.h"
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typedef void (*SyscacheCallbackFunction) (Datum arg, int cacheid, ItemPointer tuplePtr);
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typedef void (*RelcacheCallbackFunction) (Datum arg, Oid relid);
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extern void AcceptInvalidationMessages(void);
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extern void AtStart_Inval(void);
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extern void AtSubStart_Inval(void);
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extern void AtEOXact_Inval(bool isCommit);
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extern void AtEOSubXact_Inval(bool isCommit);
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extern void AtPrepare_Inval(void);
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extern void PostPrepare_Inval(void);
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extern void CommandEndInvalidationMessages(void);
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extern void BeginNonTransactionalInvalidation(void);
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extern void EndNonTransactionalInvalidation(void);
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extern void CacheInvalidateHeapTuple(Relation relation, HeapTuple tuple);
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extern void CacheInvalidateRelcache(Relation relation);
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extern void CacheInvalidateRelcacheByTuple(HeapTuple classTuple);
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extern void CacheInvalidateRelcacheByRelid(Oid relid);
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extern void CacheRegisterSyscacheCallback(int cacheid,
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SyscacheCallbackFunction func,
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Datum arg);
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extern void CacheRegisterRelcacheCallback(RelcacheCallbackFunction func,
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Datum arg);
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extern void inval_twophase_postcommit(TransactionId xid, uint16 info,
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void *recdata, uint32 len);
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#endif /* INVAL_H */
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