presto-tpch/src/main/java/io/prestosql/plugin/tpch/TpchBucketFunction.java/TpchBucketFunction/TpchBucketFunction
class TpchBucketFunction:    public TpchBucketFunction(int bucketCount, long rowsPerBucket)
    {
        this.bucketCount = bucketCount;
        this.rowsPerBucket = rowsPerBucket;
    }