diff options
Diffstat (limited to 'src/backend/utils/cache/lsyscache.c')
| -rw-r--r-- | src/backend/utils/cache/lsyscache.c | 58 |
1 files changed, 57 insertions, 1 deletions
diff --git a/src/backend/utils/cache/lsyscache.c b/src/backend/utils/cache/lsyscache.c index d51d1c18925..1621982502a 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 - * $PostgreSQL: pgsql/src/backend/utils/cache/lsyscache.c,v 1.113 2004/06/06 00:41:27 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/utils/cache/lsyscache.c,v 1.114 2004/06/18 06:13:52 tgl Exp $ * * NOTES * Eventually, the index information should go through here, too. @@ -986,6 +986,34 @@ get_rel_namespace(Oid relid) } /* + * get_rel_tablespace + * Returns the pg_tablespace OID associated with a given relation. + * + * Note: failure return is InvalidOid, which cannot be distinguished from + * "default tablespace for this database", but that seems OK. + */ +Oid +get_rel_tablespace(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->reltablespace; + ReleaseSysCache(tp); + return result; + } + else + return InvalidOid; +} + +/* * get_rel_type_id * * Returns the pg_type OID associated with a given relation. @@ -1980,6 +2008,34 @@ get_namespace_name(Oid nspid) return NULL; } +/* + * get_namespace_tablespace + * Returns the default tablespace of a given namespace + * + * Note: failure return is InvalidOid, which cannot be distinguished from + * "default tablespace for this database", but that seems OK. + */ +Oid +get_namespace_tablespace(Oid nspid) +{ + HeapTuple tp; + + tp = SearchSysCache(NAMESPACEOID, + ObjectIdGetDatum(nspid), + 0, 0, 0); + if (HeapTupleIsValid(tp)) + { + Form_pg_namespace nsptup = (Form_pg_namespace) GETSTRUCT(tp); + Oid result; + + result = nsptup->nsptablespace; + ReleaseSysCache(tp); + return result; + } + else + return InvalidOid; +} + /* ---------- PG_SHADOW CACHE ---------- */ /* |