错误代码：1052。IN/ALL/ANY 子查询中的列 'id' 不明确

Question

    Left join ( select * from crif_stage2 where id in 
    ( select id from  ( select user_id, max(id) as id from
    crif_stage2 group by 1)a)) cf2 on l.user_id = cf2.user_id

编辑：我应该在这个查询中在哪里添加表名（a）？

Answer 1

左连接 ( select * from crif_stage2 where id in ( select a.id from
( select user_id, max(id) as id from crif_stage2 group by 1) a) ) cf2 on l.user_id = cf2.user_id