diff options
Diffstat (limited to 'src/backend/utils/cache/syscache.c')
| -rw-r--r-- | src/backend/utils/cache/syscache.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/src/backend/utils/cache/syscache.c b/src/backend/utils/cache/syscache.c index 0e64aacf61..a407d39f5d 100644 --- a/src/backend/utils/cache/syscache.c +++ b/src/backend/utils/cache/syscache.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/utils/cache/syscache.c,v 1.63 2001/06/18 03:35:07 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/utils/cache/syscache.c,v 1.64 2001/08/10 18:57:37 tgl Exp $ * * NOTES * These routines allow the parser/planner/executor to perform @@ -486,6 +486,28 @@ SearchSysCacheCopy(int cacheId, } /* + * SearchSysCacheExists + * + * A convenience routine that just probes to see if a tuple can be found. + * No lock is retained on the syscache entry. + */ +bool +SearchSysCacheExists(int cacheId, + Datum key1, + Datum key2, + Datum key3, + Datum key4) +{ + HeapTuple tuple; + + tuple = SearchSysCache(cacheId, key1, key2, key3, key4); + if (!HeapTupleIsValid(tuple)) + return false; + ReleaseSysCache(tuple); + return true; +} + +/* * GetSysCacheOid * * A convenience routine that does SearchSysCache and returns the OID |