t.id_ as id , t.period_ as period , t.sale_price_ as salePrice , t.original_price_ as originalPrice , t.create_time_ as createTime , t.update_time_ as updateTime , t.create_by_ as createBy , t.update_by_ as updateBy SELECT , ifnull(u.real_name_,u.username_) modifierName FROM member_price_settings t LEFT JOIN sys_user u on t.update_by_ = u.id_ where t.id_ = #{id} SELECT , ifnull(u.real_name_,u.username_) as modifierName FROM member_price_settings t LEFT JOIN sys_user u on t.update_by_ = u.id_