presto-elasticsearch/src/main/java/io/prestosql/elasticsearch/client/ElasticsearchClient.java/ElasticsearchClient/nextPage
class ElasticsearchClient:    public SearchResponse nextPage(String scrollId)
    {
        SearchScrollRequest request = new SearchScrollRequest(scrollId)
                .scroll(new TimeValue(scrollTimeout.toMillis()));

        try {
            return client.searchScroll(request);
        }
        catch (IOException e) {
            throw new PrestoException(ELASTICSEARCH_CONNECTION_ERROR, e);
        }
    }