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/*-------------------------------------------------------------------------
*
* syscache.h
* System catalog cache definitions.
*
* See also lsyscache.h, which provides convenience routines for
* common cache-lookup operations.
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: syscache.h,v 1.40 2002/03/26 19:16:59 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef SYSCACHE_H
#define SYSCACHE_H
#include "access/htup.h"
/*
* Declarations for util/syscache.c.
*
* SysCache identifiers.
*
* The order of these must match the order
* they are entered into the structure cacheinfo[] in syscache.c.
* Keep them in alphabetical order.
*/
#define AGGNAME 0
#define AGGOID 1
#define AMNAME 2
#define AMOID 3
#define AMOPOPID 4
#define AMOPSTRATEGY 5
#define AMPROCNUM 6
#define ATTNAME 7
#define ATTNUM 8
#define CLAAMNAME 9
#define CLAOID 10
#define GRONAME 11
#define GROSYSID 12
#define INDEXRELID 13
#define INHRELID 14
#define LANGNAME 15
#define LANGOID 16
#define NAMESPACENAME 17
#define NAMESPACEOID 18
#define OPERNAME 19
#define OPEROID 20
#define PROCNAME 21
#define PROCOID 22
#define RELNAMENSP 23
#define RELOID 24
#define RULENAME 25
#define SHADOWNAME 26
#define SHADOWSYSID 27
#define STATRELATT 28
#define TYPENAME 29
#define TYPEOID 30
extern void InitCatalogCache(void);
extern void InitCatalogCachePhase2(void);
extern HeapTuple SearchSysCache(int cacheId,
Datum key1, Datum key2, Datum key3, Datum key4);
extern void ReleaseSysCache(HeapTuple tuple);
/* convenience routines */
extern HeapTuple SearchSysCacheCopy(int cacheId,
Datum key1, Datum key2, Datum key3, Datum key4);
extern bool SearchSysCacheExists(int cacheId,
Datum key1, Datum key2, Datum key3, Datum key4);
extern Oid GetSysCacheOid(int cacheId,
Datum key1, Datum key2, Datum key3, Datum key4);
extern Datum SysCacheGetAttr(int cacheId, HeapTuple tup,
AttrNumber attributeNumber, bool *isNull);
#endif /* SYSCACHE_H */
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