presto-hive/src/main/java/io/prestosql/plugin/hive/HivePartitionHandle.java/HivePartitionHandle/equals
class HivePartitionHandle:    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        HivePartitionHandle that = (HivePartitionHandle) o;
        return bucket == that.bucket;
    }