id , user_id, message_column_id, is_receive SELECT t2.column_name AS columnName, t2.id FROM `ums_message_column_set` t1 LEFT JOIN ums_message_column t2 ON t1.message_column_id = t2.id LEFT JOIN ums_message t3 ON t2.id = t3.message_type t1.is_receive=1 and t1.user_id = #{userId} GROUP BY t2.id SELECT COUNT(1) as count FROM `ums_message_column_set` t1 LEFT JOIN ums_message_column t2 ON t1.message_column_id = t2.id LEFT JOIN ums_message t3 ON t2.id = t3.message_type where t1.user_id = #{userId} and t3.target_to=#{userId} AND t2.id=#{id} AND t3.is_view=0