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https://issues.apache.org/jira/browse/SPARK-39249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17540444#comment-17540444
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Apache Spark commented on SPARK-39249:
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User 'WangGuangxin' has created a pull request for this issue:
https://github.com/apache/spark/pull/36626
> Improve subexpression elimination for conditional expressions
> -------------------------------------------------------------
>
> Key: SPARK-39249
> URL: https://issues.apache.org/jira/browse/SPARK-39249
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.4.0
> Reporter: EdisonWang
> Priority: Minor
>
> Currently we can do subexpression elimination for conditional expressions
> when the subexpression is common across all {{{}branchGroups{}}}. In fact, we
> can farther improve this when there are common expressions between
> {{alwaysEvaluatedInputs}} and {{{}branchGroups{}}}.
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