presto-hive/src/main/java/io/prestosql/plugin/hive/HivePageSourceProvider.java/HivePageSourceProvider/BucketAdaptation
class HivePageSourceProvider:        public BucketAdaptation(
                int[] bucketColumnIndices,
                List<HiveType> bucketColumnHiveTypes,
                BucketingVersion bucketingVersion,
                int tableBucketCount,
                int partitionBucketCount,
                int bucketToKeep)
        {
            this.bucketColumnIndices = bucketColumnIndices;
            this.bucketColumnHiveTypes = bucketColumnHiveTypes;
            this.bucketingVersion = bucketingVersion;
            this.tableBucketCount = tableBucketCount;
            this.partitionBucketCount = partitionBucketCount;
            this.bucketToKeep = bucketToKeep;
        }