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5c25d60244
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc to all files copyright Regents of Berkeley. Man, that's a lot of files.
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
/*-------------------------------------------------------------------------
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*
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* syscache.h
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* System catalog cache definitions.
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*
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* See also lsyscache.h, which provides convenience routines for
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* common cache-lookup operations.
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*
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Id: syscache.h,v 1.24 2000/01/26 05:58:38 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef SYSCACHE_H
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#define SYSCACHE_H
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#include "access/htup.h"
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/* #define CACHEDEBUG *//* turns DEBUG elogs on */
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/*
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* Declarations for util/syscache.c.
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*
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* SysCache identifiers.
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*
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* The order of these must match the order
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* they are entered into the structure cacheinfo[] in syscache.c
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* Keep them in alphabeticall order.
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*/
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#define AGGNAME 0
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#define AMNAME 1
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#define AMOPOPID 2
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#define AMOPSTRATEGY 3
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#define ATTNAME 4
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#define ATTNUM 5
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#define CLADEFTYPE 6
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#define CLANAME 7
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#define GRONAME 8
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#define GROSYSID 9
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#define INDEXRELID 10
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#define INHRELID 11
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#define LANGNAME 12
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#define LANGOID 13
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#define LISTENREL 14
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#define OPERNAME 15
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#define OPEROID 16
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#define PROCNAME 17
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#define PROCOID 18
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#define RELNAME 19
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#define RELOID 20
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#define RULENAME 21
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#define RULEOID 22
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#define SHADOWNAME 23
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#define SHADOWSYSID 24
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#define STATRELID 25
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#define TYPENAME 26
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#define TYPEOID 27
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/* ----------------
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* struct cachedesc: information needed for a call to InitSysCache()
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* ----------------
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*/
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struct cachedesc
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{
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char *name; /* this is Name so that we can initialize
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* it */
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int nkeys;
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int key[4];
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int size; /* sizeof(appropriate struct) */
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char *indname; /* index relation for this cache, if
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* exists */
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HeapTuple (*iScanFunc) ();/* function to handle index scans */
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};
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extern void zerocaches(void);
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extern void InitCatalogCache(void);
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extern HeapTuple SearchSysCacheTupleCopy(int cacheId,
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Datum key1, Datum key2, Datum key3, Datum key4);
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extern HeapTuple SearchSysCacheTuple(int cacheId,
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Datum key1, Datum key2, Datum key3, Datum key4);
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extern Datum SysCacheGetAttr(int cacheId, HeapTuple tup,
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AttrNumber attributeNumber,
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bool *isnull);
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#endif /* SYSCACHE_H */
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