public function getDataByEnv($siteEnv) 
	{
	    $select = $this->tableGateway->getSql()->select();
	     
	    $select->columns(array('*'));
	    $select->group('melis_cms_site_domain.sdom_env');
	    $select->where(array('sdom_env' => $siteEnv));
	    $resultSet = $this->tableGateway->selectWith($select);
	     
	    return $resultSet;
	}