dongjoon-hyun commented on issue #27233: [SPARK-29701][SQL] Correct behaviours of group analytical queries when empty input given URL: https://github.com/apache/spark/pull/27233#issuecomment-577465815 Thanks for the confirmation, @gatorsmile . However, IIRC, `regression or not` is not a valid reason when it comes to `correctness` or `data-loss` issue.
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