MySql 老版本替代leadover的语法

SELECT * FROM 
(
	SELECT @endtime endlesstime,@endtime:=b.STARTTIME,b.* FROM
	(
		SELECT @rownum rn,@rownum:=@rownum+1 rn1,a.* FROM 
		(
			SELECT * FROM info_bindinginfo ORDER BY STARTTIME
		) a,
		(SELECT @rownum:=0) inita 
		ORDER BY @rownum DESC
	) b,
	(SELECT @endtime:=STR_TO_DATE("3000-01-01","%Y-%m-%d")) initb
) c
ORDER BY c.rn1