presto-main/src/main/java/io/prestosql/sql/planner/PartitioningScheme.java/PartitioningScheme/withBucketToPartition
class PartitioningScheme:    public PartitioningScheme withBucketToPartition(Optional<int[]> bucketToPartition)
    {
        return new PartitioningScheme(partitioning, outputLayout, hashColumn, replicateNullsAndAny, bucketToPartition);
    }