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Diffstat (limited to 'src/backend/utils/cache/lsyscache.c')
| -rw-r--r-- | src/backend/utils/cache/lsyscache.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/backend/utils/cache/lsyscache.c b/src/backend/utils/cache/lsyscache.c index 8d1cdf1f1aa..093da76e494 100644 --- a/src/backend/utils/cache/lsyscache.c +++ b/src/backend/utils/cache/lsyscache.c @@ -1787,6 +1787,28 @@ get_rel_tablespace(Oid relid) return InvalidOid; } +/* + * get_rel_persistence + * + * Returns the relpersistence associated with a given relation. + */ +char +get_rel_persistence(Oid relid) +{ + HeapTuple tp; + Form_pg_class reltup; + char result; + + tp = SearchSysCache1(RELOID, ObjectIdGetDatum(relid)); + if (!HeapTupleIsValid(tp)) + elog(ERROR, "cache lookup failed for relation %u", relid); + reltup = (Form_pg_class) GETSTRUCT(tp); + result = reltup->relpersistence; + ReleaseSysCache(tp); + + return result; +} + /* ---------- TRANSFORM CACHE ---------- */ |