diff options
Diffstat (limited to 'src/backend/utils/cache/lsyscache.c')
| -rw-r--r-- | src/backend/utils/cache/lsyscache.c | 62 |
1 files changed, 61 insertions, 1 deletions
diff --git a/src/backend/utils/cache/lsyscache.c b/src/backend/utils/cache/lsyscache.c index 204bcd03c0b..ad92636f7f1 100644 --- a/src/backend/utils/cache/lsyscache.c +++ b/src/backend/utils/cache/lsyscache.c @@ -2611,6 +2611,16 @@ type_is_range(Oid typid) } /* + * type_is_multirange + * Returns true if the given type is a multirange type. + */ +bool +type_is_multirange(Oid typid) +{ + return (get_typtype(typid) == TYPTYPE_MULTIRANGE); +} + +/* * get_type_category_preferred * * Given the type OID, fetch its category and preferred-type status. @@ -3308,7 +3318,7 @@ get_namespace_name_or_temp(Oid nspid) return get_namespace_name(nspid); } -/* ---------- PG_RANGE CACHE ---------- */ +/* ---------- PG_RANGE CACHES ---------- */ /* * get_range_subtype @@ -3361,6 +3371,56 @@ get_range_collation(Oid rangeOid) return InvalidOid; } +/* + * get_range_multirange + * Returns the multirange type of a given range type + * + * Returns InvalidOid if the type is not a range type. + */ +Oid +get_range_multirange(Oid rangeOid) +{ + HeapTuple tp; + + tp = SearchSysCache1(RANGETYPE, ObjectIdGetDatum(rangeOid)); + if (HeapTupleIsValid(tp)) + { + Form_pg_range rngtup = (Form_pg_range) GETSTRUCT(tp); + Oid result; + + result = rngtup->rngmultitypid; + ReleaseSysCache(tp); + return result; + } + else + return InvalidOid; +} + +/* + * get_multirange_range + * Returns the range type of a given multirange + * + * Returns InvalidOid if the type is not a multirange. + */ +Oid +get_multirange_range(Oid multirangeOid) +{ + HeapTuple tp; + + tp = SearchSysCache1(RANGEMULTIRANGE, ObjectIdGetDatum(multirangeOid)); + if (HeapTupleIsValid(tp)) + { + Form_pg_range rngtup = (Form_pg_range) GETSTRUCT(tp); + Oid result; + + result = rngtup->rngtypid; + ReleaseSysCache(tp); + return result; + } + else + return InvalidOid; +} + /* ---------- PG_INDEX CACHE ---------- */ /* |