mysql 引号变成字段问题

Question

突然出现一个引号变成字段问题SQLSTATE[42S22]:Columnnotfound:1054Unknowncolumn'%Y-%m-%d'in'fieldlist'(SQL:selectcount(id)count,DATE_FORMAT(created_at,"%Y-%m-%d")timefrom`user`where`created_at`>=2017-06-24and`created_at`