/**
* Specify a map reduce operation for this query.
*
* @param mixed $map
* @param mixed $reduce
* @param array $options
* @return QueryProxy this instance
*/
public function mapReduce($map, $reduce, array $out = array('inline' => true), array $options = array())
{
$this->queryChanged = true;
return parent::mapReduce($map, $reduce, $out, $options);
}
