-- Kunena 2.0.0

UPDATE `#__kunena_sessions`
SET `allowed` = 'na';

REPLACE INTO `#__kunena_topics` (id, category_id, subject, locked, hold, ordering, posts, hits, moved_id, first_post_id,
                    first_post_time, first_post_userid, first_post_message, first_post_guest_name, last_post_id,
                    last_post_time, last_post_userid, last_post_message, last_post_guest_name)
SELECT m.id,
       m.catid    AS category_id,
       m.subject,
       m.locked,
       m.hold,
       m.ordering,
       1          AS posts,
       m.hits,
       th.thread  AS moved_id,
       th.id      AS first_post_id,
       th.time    AS first_post_time,
       th.userid  AS first_post_userid,
       tt.message AS first_post_message,
       th.name    AS first_post_guest_name,
       th.id      AS last_post_id,
       th.time    AS last_post_time,
       th.userid  AS last_post_userid,
       tt.message AS last_post_message,
       th.name    AS last_post_guest_name
FROM (SELECT m.*,
             CAST(SUBSTRING(t.message, LENGTH(t.message) + 2 - LOCATE('=', REVERSE(t.message))) AS
                  UNSIGNED) AS last_post_id
      FROM `#__kunena_messages` as m
        INNER JOIN `#__kunena_messages_text` AS t ON m.id = t.mesid
      WHERE m.moved = 1) as m
  INNER JOIN `#__kunena_messages` AS th ON m.last_post_id = th.id
  INNER JOIN `#__kunena_messages_text` as tt ON th.id = tt.mesid;

DELETE m, t
FROM `#__kunena_messages` AS m
  INNER JOIN `#__kunena_messages_text` AS t ON m.id = t.mesid
WHERE m.moved > 0;
DELETE
FROM `#__kunena_messages`
WHERE moved > 0;