@Override public boolean equals(Object o) {
    if (this == o) {
      return true;
    }
    if (o == null || getClass() != o.getClass()) {
      return false;
    }
    DruidWritable that = (DruidWritable) o;
    return compacted == that.compacted && Objects.equals(value, that.value) && Objects.equals(compactedValue,
        that.compactedValue);
  }
list of values in a compacted form, Serializer/Deserializer needs to agree on the order of values.
This is only used when the result is compacted.
druid-handler/src/java/org/apache/hadoop/hive/druid/serde/DruidWritable.java