private function getSequenceCacheSQL(Sequence $sequence)
    {
        if ($sequence->getCache() === 0) {
            return ' NOCACHE';
        }

        if ($sequence->getCache() === 1) {
            return ' NOCACHE';
        }

        if ($sequence->getCache() > 1) {
            return ' CACHE ' . $sequence->getCache();
        }

        return '';
    }