diff options
Diffstat (limited to 'src/backend/utils/cache')
| -rw-r--r-- | src/backend/utils/cache/lsyscache.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/src/backend/utils/cache/lsyscache.c b/src/backend/utils/cache/lsyscache.c index f4ebb6261c2..11577801118 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 1.64 2002/03/20 19:44:42 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.65 2002/03/22 02:56:35 tgl Exp $ * * NOTES * Eventually, the index information should go through here, too. @@ -690,6 +690,35 @@ get_rel_name(Oid relid) return NULL; } +/* + * get_rel_type_id + * + * Returns the pg_type OID associated with a given relation. + * + * Note: not all pg_class entries have associated pg_type OIDs; so be + * careful to check for InvalidOid result. + */ +Oid +get_rel_type_id(Oid relid) +{ + HeapTuple tp; + + tp = SearchSysCache(RELOID, + ObjectIdGetDatum(relid), + 0, 0, 0); + if (HeapTupleIsValid(tp)) + { + Form_pg_class reltup = (Form_pg_class) GETSTRUCT(tp); + Oid result; + + result = reltup->reltype; + ReleaseSysCache(tp); + return result; + } + else + return InvalidOid; +} + /* ---------- TYPE CACHE ---------- */ /* |