public function toSQL(Parameters $params, bool $inner_clause)
    {
        $func = $this->getFunction();
        $arguments = $this->getArguments();
        
        $args = array();
        foreach ($arguments as $arg)
            $args[] = $params->getDriver()->toSQL($params, $arg, false);

        return $func . '(' . implode(', ', $args) . ')';
    }