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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2020/11/06 09:52:47 UTC

[GitHub] [spark] cloud-fan commented on pull request #30245: [SPARK-33337][SQL] Support subexpression elimination in branches of conditional expressions

cloud-fan commented on pull request #30245:
URL: https://github.com/apache/spark/pull/30245#issuecomment-722987368


   Do you still remember why "subexpression elimination" must be eagerly executed? Because implementing "lazy" is expensive?


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