CRM-19230: Fix groupBy for mailing summary report

diff --git a/CRM/Report/Form/Mailing/Summary.php b/CRM/Report/Form/Mailing/Summary.php
index facc20790af71a6d222edf0b3334910c6c3c15fa..51e4dad9210b0aeef4e791144278653e79a1cf81 100644 (file)
--- a/CRM/Report/Form/Mailing/Summary.php
+++ b/CRM/Report/Form/Mailing/Summary.php
@@ -458,7 +458,6 @@ class CRM_Report_Form_Mailing_Summary extends CRM_Report_Form {
   public function groupBy() {
     $groupBy = array(
       "{$this->_aliases['civicrm_mailing']}.id",
-      "{$this->_aliases['civicrm_mailing_job']}.end_date",
     );
     $this->_groupBy = CRM_Contact_BAO_Query::getGroupByFromSelectColumns($this->_selectClauses, $groupBy);
   }