SELECT messageid, time, type, flags, sender, message
FROM backlog
-LEFT JOIN sender ON backlog.senderid = sender.senderid
+JOIN sender ON backlog.senderid = sender.senderid
WHERE backlog.messageid >= $1
AND backlog.messageid < $2
AND bufferid = $3
ORDER BY messageid DESC
-LIMIT $4
\ No newline at end of file
+LIMIT $4