@Override
  public void init(ByteArrayRef bytes, int start, int length) {
    super.init(bytes, start, length);
    parsed = false;
  }
Set the row data for this LazyBinaryMap.

@see LazyBinaryObject#init(ByteArrayRef, int, int)
serde/src/java/org/apache/hadoop/hive/serde2/lazybinary/LazyBinaryMap.java