Computed columns

Hello everyone,

I am playing around with druid and was ingesting data using flattenSpec. Is there a way i can create a computed column, i.e I have columns like student name, address, score1, score2, score3 (which is basically score1+score2)

If this is not available in druid can this be done via superset ?

Please advice.

Thank you.

Hi Ramesh, take a look at postAggregations:

Does that do what you want?

Hello Yang - Post Aggregation are only done on aggregations right ? In my case score3 is not an aggregation.