diff --git a/src/applications/transactions/storage/PhabricatorApplicationTransaction.php b/src/applications/transactions/storage/PhabricatorApplicationTransaction.php
--- a/src/applications/transactions/storage/PhabricatorApplicationTransaction.php
+++ b/src/applications/transactions/storage/PhabricatorApplicationTransaction.php
@@ -113,6 +113,9 @@
         'key_object' => array(
           'columns' => array('objectPHID'),
         ),
+        'key_dateCreated' => array(
+          'columns' => array('dateCreated'),
+        ),
       ),
     ) + parent::getConfiguration();
   }