/**
  * Deletes all table information.
  *
  * This will only happen if the underlying table is modified in any way
  *
  * @param DboSource $db
  * @return void
  */
 public function truncate($db)
 {
     if ($this->_tableUnmodified($db)) {
         return true;
     }
     return parent::truncate($db);
 }