private int setBucket(int bucketProperty, int operation) {
    assert operation == UPDATE_OPERATION || operation == DELETE_OPERATION;
    int currentBucketProperty = bucket.get();
    bucket.set(bucketProperty);
    return currentBucketProperty;
  }
An ObjectInspector that will strip out the record identifier so that the underlying writer
doesn't see it.
ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcRecordUpdater.java