presto-cassandra/src/main/java/io/prestosql/plugin/cassandra/CassandraClientConfig.java/CassandraClientConfig/setFetchSize
class CassandraClientConfig:    @Config("cassandra.fetch-size")
    public CassandraClientConfig setFetchSize(int fetchSize)
    {
        this.fetchSize = fetchSize;
        return this;
    }