public static void serializeStruct(RandomAccessOutput byteStream, Object[] fieldData,
      List<ObjectInspector> fieldOis) throws SerDeException {
    serializeStruct(byteStream, fieldData, fieldOis, null);
  }
Serialize an object to a byte buffer in a binary compact way.
serde/src/java/org/apache/hadoop/hive/serde2/lazybinary/LazyBinarySerDe.java