update forums_messages set last_poster = :to_user_id where last_poster = :from_user_id update forums_messages set user_id = :to_user_id where user_id = :from_user_id select message_id, subject from forums_messages where user_id = :user_id select message_id, subject from forums_messages where last_poster = :user_id select forum_id as object_id, name as title, charter as content, 'text/plain' as mime, 'text' as storage_type, '' as keywords from forums_forums where forum_id = :forum_id