diff options
Diffstat (limited to 'src/include/utils/syscache.h')
| -rw-r--r-- | src/include/utils/syscache.h | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/src/include/utils/syscache.h b/src/include/utils/syscache.h index 5d17e8db44c..73abd53e134 100644 --- a/src/include/utils/syscache.h +++ b/src/include/utils/syscache.h @@ -9,7 +9,7 @@ * Portions Copyright (c) 1996-2000, PostgreSQL, Inc * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: syscache.h,v 1.26 2000/06/17 04:56:29 tgl Exp $ + * $Id: syscache.h,v 1.27 2000/11/16 22:30:49 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -57,12 +57,22 @@ #define TYPENAME 26 #define TYPEOID 27 -extern void zerocaches(void); extern void InitCatalogCache(void); -extern HeapTuple SearchSysCacheTuple(int cacheId, + +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 HeapTuple SearchSysCacheTupleCopy(int cacheId, - Datum key1, Datum key2, Datum key3, Datum key4); +extern Oid GetSysCacheOid(int cacheId, + Datum key1, Datum key2, Datum key3, Datum key4); + +/* macro for just probing for existence of a tuple via the syscache */ +#define SearchSysCacheExists(c,k1,k2,k3,k4) \ + OidIsValid(GetSysCacheOid(c,k1,k2,k3,k4)) + extern Datum SysCacheGetAttr(int cacheId, HeapTuple tup, AttrNumber attributeNumber, bool *isNull); |