Neos\Neos\EventLog\Domain\Repository\EventRepository::prepareRelevantEventsQuery PHP Method

    protected function prepareRelevantEventsQuery()
    {
        $query = $this->createQuery();
        $queryBuilder = $query->getQueryBuilder();
        $queryBuilder->andWhere($queryBuilder->expr()->isNull('e.parentEvent'));
        $queryBuilder->orderBy('e.uid', 'DESC');
        return $query;
    }