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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) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/utils/syscache.h,v 1.56 2003/11/29 22:41:16 pgsql 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 AGGFNOID 0
#define AMNAME 1
#define AMOID 2
#define AMOPOPID 3
#define AMOPSTRATEGY 4
#define AMPROCNUM 5
#define ATTNAME 6
#define ATTNUM 7
#define CASTSOURCETARGET 8
#define CLAAMNAMENSP 9
#define CLAOID 10
#define CONDEFAULT 11
#define CONNAMENSP 12
#define CONOID 13
#define GRONAME 14
#define GROSYSID 15
#define INDEXRELID 16
#define INHRELID 17
#define LANGNAME 18
#define LANGOID 19
#define NAMESPACENAME 20
#define NAMESPACEOID 21
#define OPERNAMENSP 22
#define OPEROID 23
#define PROCNAMENSP 24
#define PROCOID 25
#define RELNAMENSP 26
#define RELOID 27
#define RULERELNAME 28
#define SHADOWNAME 29
#define SHADOWSYSID 30
#define STATRELATT 31
#define TYPENAMENSP 32
#define TYPEOID 33
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 HeapTuple SearchSysCacheAttName(Oid relid, const char *attname);
extern HeapTuple SearchSysCacheCopyAttName(Oid relid, const char *attname);
extern bool SearchSysCacheExistsAttName(Oid relid, const char *attname);
extern Datum SysCacheGetAttr(int cacheId, HeapTuple tup,
AttrNumber attributeNumber, bool *isNull);
/* list-search interface. Users of this must import catcache.h too */
extern struct catclist *SearchSysCacheList(int cacheId, int nkeys,
Datum key1, Datum key2, Datum key3, Datum key4);
#define ReleaseSysCacheList(x) ReleaseCatCacheList(x)
#endif /* SYSCACHE_H */
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