@Override
    public void readFields(DataInput in) throws IOException {
      // Ignore. Not required as this will be never
      // serialized/deserialized.
    }
Configure the job with the multiple output formats added. This method
should be called after all the output formats have been added and
configured and before the job submission.
hcatalog/core/src/main/java/org/apache/hive/hcatalog/mapreduce/MultiOutputFormat.java