Nette\Database\Drivers\PgSqlDriver::applyLimit PHP Method

    public function applyLimit(&$sql, $limit, $offset)
    {
        if ($limit < 0 || $offset < 0) {
            throw new Nette\InvalidArgumentException('Negative offset or limit.');
        }
        if ($limit !== NULL) {
            $sql .= ' LIMIT ' . (int) $limit;
        }
        if ($offset) {
            $sql .= ' OFFSET ' . (int) $offset;
        }
    }