dongjoon-hyun commented on issue #25068: [SPARK-28156][SQL][BACKPORT-2.4] Self-join should not miss cached view URL: https://github.com/apache/spark/pull/25068#issuecomment-509797532 Hi, @bersprockets . For backporting, could you follow @cloud-fan 's [advice](https://github.com/apache/spark/pull/25068#discussion_r301416338)? > The rule AliasViewChild is already there before we have canUpCast and sameOutput. We just need to update the corresponding code to the old version without canUpCast and sameOutput.
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