Think\Db\Connection::__call PHP Метод

    public function __call($method, $args)
    {
        if (!isset($this->query['database'])) {
            $class = $this->config['query'];
            $this->query['database'] = new $class($this);
        }
        return call_user_func_array([$this->query['database'], $method], $args);
    }