final protected function select($name, $escape = true){
        $this->_select[] = $escape
            ? $this->escape_column_name($name)
            : $name;
        return $this;
    }
final protected function select($name, $escape = true){
        $this->_select[] = $escape
            ? $this->escape_column_name($name)
            : $name;
        return $this;
    }
final protected function select ( $ name , $ escape = true ) { $ this -> _select [ ] = $ escape ? $ this -> escape_column_name ( $ name ) : $ name ; return $ this ; }
Set select param

@param string $name
@param bool $escape Default true
@return $this
Set select param