diff options
Diffstat (limited to 'src/backend/utils/cache/lsyscache.c')
| -rw-r--r-- | src/backend/utils/cache/lsyscache.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/src/backend/utils/cache/lsyscache.c b/src/backend/utils/cache/lsyscache.c index 19178cc5243..fcd9dc2f59b 100644 --- a/src/backend/utils/cache/lsyscache.c +++ b/src/backend/utils/cache/lsyscache.c @@ -7,7 +7,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.94 2003/05/13 04:38:58 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.95 2003/05/26 00:11:27 tgl Exp $ * * NOTES * Eventually, the index information should go through here, too. @@ -80,6 +80,33 @@ op_requires_recheck(Oid opno, Oid opclass) return result; } +/* + * get_opclass_member + * Get the OID of the operator that implements the specified strategy + * for the specified opclass. + * + * Returns InvalidOid if there is no pg_amop entry for the given keys. + */ +Oid +get_opclass_member(Oid opclass, int16 strategy) +{ + HeapTuple tp; + Form_pg_amop amop_tup; + Oid result; + + tp = SearchSysCache(AMOPSTRATEGY, + ObjectIdGetDatum(opclass), + Int16GetDatum(strategy), + 0, 0); + if (!HeapTupleIsValid(tp)) + return InvalidOid; + amop_tup = (Form_pg_amop) GETSTRUCT(tp); + result = amop_tup->amopopr; + ReleaseSysCache(tp); + return result; +} + + /* ---------- ATTRIBUTE CACHES ---------- */ /* |