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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2022/01/13 03:33:38 UTC

[GitHub] [spark] cloud-fan commented on pull request #35168: [SPARK-37865][SQL]Spark should not dedup the grouping Expressions when the first child of union has duplicate columns

cloud-fan commented on pull request #35168:
URL: https://github.com/apache/spark/pull/35168#issuecomment-1011755207


   Yes this is a bug. Can you explain more about how this bug happens? Maybe adding alias is not the best way to fix it.


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