@ -10,7 +10,7 @@
t1.class_id,
IF(find_in_set(parent_class_id, @pids) > 0, @pids := concat(@pids, ',', class_id), 0) AS ischild
FROM (
SELECT class_id, parent_class_id FROM md_base_classstandard t WHERE t.is_delete = '0' ORDER BY class_code
SELECT class_id, parent_class_id FROM md_pd_classstandard t WHERE t.is_delete = '0' ORDER BY class_code
) t1,
(SELECT @pids := #{classId}) t2
) t3