presto-hive/src/main/java/io/prestosql/plugin/hive/HiveSplit.java/HiveSplit/equals
class HiveSplit:        @Override
        public boolean equals(Object o)
        {
            if (this == o) {
                return true;
            }
            if (o == null || getClass() != o.getClass()) {
                return false;
            }
            BucketConversion that = (BucketConversion) o;
            return tableBucketCount == that.tableBucketCount &&
                    partitionBucketCount == that.partitionBucketCount &&
                    Objects.equals(bucketColumnNames, that.bucketColumnNames);
        }