--
-- acs_object_type_get_tree_sortkey/1
--
create or replace function acs_object_type_get_tree_sortkey(
  character varying
) returns varbit as $$

declare
  p_object_type    alias for $1;
begin
  return tree_sortkey from acs_object_types where object_type = p_object_type;
end;$$ language plpgsql;