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Posted to github@arrow.apache.org by "alamb (via GitHub)" <gi...@apache.org> on 2023/04/13 15:55:01 UTC

[GitHub] [arrow-datafusion] alamb commented on issue #5970: UNION ALL with ORDER BY results are inconsistent

alamb commented on issue #5970:
URL: https://github.com/apache/arrow-datafusion/issues/5970#issuecomment-1507210583

   > I would argue that UnionExec should NEVER modify its inputs but just be a plain, simple node that forwards its inputs w/o messing up sorting (or any other property).
   
   I agree with this sentiment -- we already have `RepartitionExec` that concatenates batches from different streams


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