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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/05/19 18:10:44 UTC

[GitHub] [arrow-datafusion] jorgecarleitao commented on issue #364: Compare GroupByScalar

jorgecarleitao commented on issue #364:
URL: https://github.com/apache/arrow-datafusion/issues/364#issuecomment-844347323


   > I have also often wondered "why do we have `GroupByScalar` at all" (aka why can't we just use `ScalarValue`)
   
   I agree.
   
   AFAIK it is a historical artifact. First it came the `GroupByScalar`, when the group by was first implemented; then the `ScalarValue` emerged to nullable uniformise scalar operations, particularly aggregations.


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