mysql 子查询不支持limit

mysql执行如下语句 ：

SELECT * FROM `xxx_base_info` where yn =1 and xxx_keeper_id in (SELECT id FROM `user`where level>1 and yn =1 order by level desc limit 50)

MySQL 返回：

#1235 - This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery'

解决方案：

1、加一层子查询搞定：

SELECT * FROM `xxx_base_info` where yn =1 and xxx_keeper_id in ( select aa.id from (SELECT id FROM `user`where level>1 and yn =1 order by level desc limit 50) aa)