sql: pg_type_is_visible does not handle user-defined types #60008
Description
The following should return true, but it returns null.
root@:26257/defaultdb> create type mood as enum('Sad', 'Okk', 'Happy');
CREATE TYPE
root@:26257/defaultdb> select pg_type_is_visible(t.oid) from pg_type t where t.typname = 'mood';
pg_type_is_visible
----------------------
NULL
the pg_type_is_visible only checks for the hardcoded list of builtin types.