WHERE backlog.bufferid IN (SELECT bufferid FROM buffer WHERE userid = :userid)
AND backlog.messageid >= :firstmsg
AND backlog.type & :type != 0
- AND (:flags = 0 OR backlog.flags & :flags != 0)
+ AND (:flags = 0 OR backlog.flags & :flagsDup1 != 0)
ORDER BY messageid DESC
LIMIT :limit