[GitHub] [pinot] Jackie-Jiang commented on issue #10300: Combine value aggregator interfaces

["Jackie-Jiang (via GitHub)" <gi...@apache.org>]

Jackie-Jiang commented on issue #10300:
URL: https://github.com/apache/pinot/issues/10300#issuecomment-1472516778

   For some context, the contract over these 2 interfaces are different:
   - For the segment processing framework (roll-up), the input and output type for the aggregation must be the same because the values are stored back to the original column
   - For the star-tree creation, the aggregated values are stored in a separate column, thus it is not required to have input and output the same type


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