--
-- acs_object__get_attr_storage_table/1
--
create or replace function acs_object__get_attr_storage_table(
  text
) returns text as $$

declare
        v_vals  alias for $1;
        v_idx   integer;
        v_tmp   varchar;
begin
        v_idx := strpos(v_vals,',');

        if v_idx = 0 or v_vals is null then 
           raise exception 'invalid storage format: acs_object.get_attr_storage_table %',v_vals;
        end if;

        v_tmp := substr(v_vals,v_idx + 1);
        v_idx := strpos(v_tmp,',');
        if v_idx = 0 then 
           raise exception 'invalid storage format: acs_object.get_attr_storage_table %',v_vals;
        end if;

        return substr(v_tmp,1,v_idx - 1);

end;$$ language plpgsql;