/**
* Retrieve new select object
*
* @param string $table
* @param string $alias
* @param string $cols
* @return Mzax_Emarketing_Db_Select
*/
protected function _select($table = null, $alias = null, $cols = null)
{
$select = new Mzax_Emarketing_Db_Select($this->_getWriteAdapter());
if ($table) {
$select->from($this->_getTable($table, $alias), $cols);
}
return $select;
}
