+ //CRM-16945: seems hackish but as per CRM-16483 of using group criteria for Search Builder it is mandatory
+ //to include group_contact_cache clause when group table is present, so following code remove duplicacy
+ $from = str_replace("OR civicrm_group.id = civicrm_group_contact_cache.group_id", 'AND civicrm_group.saved_search_id IS NULL', $from);
+