如何使用mysqli multiquery执行自定义分隔符查询

我有下面的sql脚本，我想用多查询执行它

DELIMITER $$
DROP FUNCTION IF EXISTS `getAttendanceHistoryDates`$$
CREATE FUNCTION getAttendanceHistoryDates(processDate date)
  RETURNS TEXT
  DETERMINISTIC
  LANGUAGE SQL
BEGIN
  DECLARE minDate date;
  DECLARE startYear int;
  DECLARE endYear int;
  DECLARE dateString TEXT;
  SET minDate = (SELECT MIN(date) FROM `ohrm_attendance_report`);
  SET startYear = YEAR(minDate);
  SET endYear = YEAR(processDate);
  SET  dateString = processDate;
  WHILE startYear  < endYear DO
     SET  dateString = CONCAT(dateString,'|',CONCAT(startYear, '-12-31'));
     SET  startYear = startYear + 1; 
  END WHILE;
  RETURN dateString;
END;
$$
DELIMITER ;

有办法做到这一点吗？如果我只是从脚本中删除DELIMITER $$和DELIMITER ;，用;替换$$，并用多查询执行，它会起作用吗？