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Posted to issues@spark.apache.org by "Wenchen Fan (Jira)" <ji...@apache.org> on 2022/02/11 04:55:00 UTC

[jira] [Resolved] (SPARK-38177) Fix wrong transformExpressions in Optimizer

     [ https://issues.apache.org/jira/browse/SPARK-38177?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wenchen Fan resolved SPARK-38177.
---------------------------------
    Fix Version/s: 3.3.0
       Resolution: Fixed

Issue resolved by pull request 35479
[https://github.com/apache/spark/pull/35479]

> Fix wrong transformExpressions in Optimizer
> -------------------------------------------
>
>                 Key: SPARK-38177
>                 URL: https://issues.apache.org/jira/browse/SPARK-38177
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.3.0
>            Reporter: XiDuo You
>            Priority: Major
>             Fix For: 3.3.0
>
>
> `transformExpressions` can only traverse all expressions in this current query plan, so the rule `EliminateDistinct` and `EliminateAggregateFilter` can not optimize the non-root node. We should use `transformAllExpressions` rather than `transformExpressions`.



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