问同样Mysql版本，Navicat上执行的创建函数就可以，云mysql报语法错误，让参考手册啥问题？

DROP function IF EXISTS `getChildrenOrg`;

create function getChildrenOrg(orgid INT)

returns varchar(400)

BEGIN

DECLARE oTemp VARCHAR(400);

DECLARE oTempChild VARCHAR(400);

SET oTemp = '';

SET oTempChild = CAST(orgid AS CHAR);

WHILE oTempChild IS NOT NULL

DO

SET oTemp = CONCAT(oTemp,',',oTempChild);

SELECT GROUP_CONCAT(dept_id) INTO oTempChild FROM sys_dept WHERE FIND_IN_SET(parent_id,oTempChild) > 0;

END WHILE;

RETURN oTemp;

END