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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2021/03/09 15:42:05 UTC

[GitHub] [spark] Ngone51 commented on pull request #31470: [SPARK-34354][SQL] Fix failure when apply CostBasedJoinReorder on self-join

Ngone51 commented on pull request #31470:
URL: https://github.com/apache/spark/pull/31470#issuecomment-794064133


   > At least, we need to backport the former part into the previous branches, I think.
   
   But these two parts are actually made by a single rule - `DeduplicateRelations`. So I'm afraid we can not split it and backport part 1 only.


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