CREATE DEFINER=`root`@`%` FUNCTION `querySplitMenuChildren`(p_id varchar(100)) RETURNS varchar(20000) CHARSET utf8
BEGIN

DECLARE sTemp text character set utf8mb4 COLLATE utf8mb4_general_ci ;

DECLARE sTempChd text character set utf8mb4 COLLATE utf8mb4_general_ci ;

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 sar_file_split_menu WHERE FIND_IN_SET(PARENT_ID,sTempChd) > 0;

END WHILE;

RETURN sTemp;

END