protected function addJoin($args, $buffer_id, $label)
	{
		array_push($args, $label);
		$this->buffers[$buffer_id][] = $args;
	}
protected function addJoin($args, $buffer_id, $label)
	{
		array_push($args, $label);
		$this->buffers[$buffer_id][] = $args;
	}
protected function addJoin ( $ args , $ buffer_id , $ label ) { array_push ( $ args , $ label ) ; $ this -> buffers [ $ buffer_id ] [ ] = $ args ; }
Add join statement to buffer.
Add join statement to buffer .