Вопрос по реализации запроса в бд.

 
CREATE TEMPORARY TABLE user_id(
  id INT(11),
  senddate DATETIME
) TYPE = MYISAM;
                    INSERT INTO user_id (id, senddate)
SELECT to_id
     , senddate
FROM
  cms_user_msg
WHERE
  from_id = 1;
 
                    INSERT INTO user_id (id, senddate)
                    SELECT 
                        from_id, senddate
                    FROM
                        cms_user_msg
                    WHERE
                        to_id = 1;
SELECT
DISTINCT d.id
       , max(d.senddate)
       , u.login
       , u.nickname
       , u.is_deleted
       , p.imageurl
FROM
  user_id d
LEFT JOIN
cms_users u
ON u.id = d.id
LEFT JOIN
cms_user_profiles p
ON p.user_id = d.id