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https://issues.apache.org/jira/browse/SPARK-35829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17366012#comment-17366012
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Apache Spark commented on SPARK-35829:
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User 'viirya' has created a pull request for this issue:
https://github.com/apache/spark/pull/32980
> Clean up evaluates subexpressions and add more flexibility to evaluate
> particular subexpressoin
> -----------------------------------------------------------------------------------------------
>
> Key: SPARK-35829
> URL: https://issues.apache.org/jira/browse/SPARK-35829
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: L. C. Hsieh
> Assignee: L. C. Hsieh
> Priority: Major
>
> Currently `subexpressionEliminationForWholeStageCodegen` return` the gen-ed
> code of subexpressions. The caller simply puts the code into its code block.
> We need more flexible evaluation here. For example, for Filter operator's
> subexpression evaluation, we may need to evaluate particular subexpression
> for one predicate. Current approach cannot satisfy the requirement.
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