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