Merge pull request #179 from protich/feature/sortorder-revisited

CAST effective date to date time

Reviewed-By: Jared Hancock <jared@osticket.com>

include/staff/tickets.inc.php

@@ -227,7 +227,7 @@ $pageNav->setURL('tickets.php',$qstr.'&sort='.urlencode($_REQUEST['sort']).'&ord
 $qselect.=' ,count(attach.attach_id) as attachments '
          .' ,count(DISTINCT thread.id) as thread_count '
          .' ,IF(ticket.duedate IS NULL,IF(sla.id IS NULL, NULL, DATE_ADD(ticket.created, INTERVAL sla.grace_period HOUR)), ticket.duedate) as duedate '
-         .' ,GREATEST(IFNULL(ticket.lastmessage, 0), IFNULL(ticket.reopened, 0), ticket.created) as effective_date '
+         .' ,CAST(GREATEST(IFNULL(ticket.lastmessage, 0), IFNULL(ticket.reopened, 0), ticket.created) as datetime) as effective_date '
          .' ,CONCAT_WS(" ", staff.firstname, staff.lastname) as staff, team.name as team '
          .' ,IF(staff.staff_id IS NULL,team.name,CONCAT_WS(" ", staff.lastname, staff.firstname)) as assigned '
          .' ,IF(ptopic.topic_pid IS NULL, topic.topic, CONCAT_WS(" / ", ptopic.topic, topic.topic)) as helptopic ';