$query = "
SELECT mem.start_date as start_date,
mem.end_date as end_date,
- mem.source as source,
- ct.display_name as display_name
+ mem.source as source,
+ ct.display_name as display_name
FROM civicrm_membership mem
-INNER JOIN civicrm_contact ct ON ( mem.contact_id = ct.id )
+INNER JOIN civicrm_contact ct ON ( mem.contact_id = ct.id )
WHERE mem.id IN ( $memberIDs )";
$dao = CRM_Core_DAO::executeQuery($query, CRM_Core_DAO::$_nullArray);