CREATE DEFINER=`root`@`%` FUNCTION `queryChildrenTempNode`(p_id varchar(100)) RETURNS longtext CHARSET utf8mb4
BEGIN

DECLARE sTemp text;

DECLARE sTempChd text;

SET sTemp='$';

SET sTempChd = CAST(p_id AS CHAR);

WHILE sTempChd IS NOT NULL DO

SET sTemp = CONCAT(sTemp,',',sTempChd);

SELECT GROUP_CONCAT(distinct id) INTO sTempChd FROM sys_depart WHERE FIND_IN_SET(PARENT_ID,sTempChd) > 0;

END WHILE;

RETURN sTemp;

END