Index: includes/view.inc
===================================================================
--- includes/view.inc	(revision 1678)
+++ includes/view.inc	(working copy)
@@ -2219,6 +2219,7 @@
       $query = db_update($this->db_table)
         ->condition($update, $this->$update);
     }
+try {
     $return = $query
       ->fields($fields)
       ->execute();
@@ -2230,6 +2231,12 @@
         $this->$field = $return;
       }
     }
+}
+catch (PDOException $e) {
+      drupal_set_message(t('Error: %message', array('%message' => $e->getMessage())), 'error');
+      watchdog_exception('views', $e);
+      throw $e;
+}
   }
 
   /**