public function select_array(array $columns, $reset = false)
	{
		$this->_select = $reset ? $columns : array_merge($this->_select, $columns);

		return $this;
	}
public function select_array(array $columns, $reset = false)
	{
		$this->_select = $reset ? $columns : array_merge($this->_select, $columns);

		return $this;
	}
public function select_array ( array $ columns , $ reset = false ) { $ this -> _select = $ reset ? $ columns : array_merge ( $ this -> _select , $ columns ) ; return $ this ; }
Choose the columns to select from, using an array.

@param   array  $columns  list of column names or aliases
@param   bool   $reset    if true, don't merge but overwrite

@return  $this
Choose the columns to select from using an array .