Updating data within segment files

I understand that it is not possible to update data within Druid without replacing the entire segment.
However, is it possible to manually update a dimensional value within a segment file directly?

I’m assuming this would involve deserializing the segment files, updating the data and serializing the updated file.

Hi Kiran,
Hope this following link related to lookups helps you in updating.

http://druid.io/docs/latest/querying/lookups.html

Thanks,

–siva