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https://issues.apache.org/jira/browse/SPARK-56248?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jungtaek Lim resolved SPARK-56248.
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Fix Version/s: 4.2.0
Resolution: Fixed
Issue resolved by pull request 55039
[https://github.com/apache/spark/pull/55039]
> Python TransformWithState stateful processor serialization: remove
> unnecessary row construction
> -----------------------------------------------------------------------------------------------
>
> Key: SPARK-56248
> URL: https://issues.apache.org/jira/browse/SPARK-56248
> Project: Spark
> Issue Type: Improvement
> Components: Structured Streaming
> Affects Versions: 4.1.1
> Reporter: Jason Teoh
> Assignee: Jason Teoh
> Priority: Minor
> Labels: pull-request-available
> Fix For: 4.2.0
>
>
> The current Python TWS stateful processor's serialization path is a hot path
> executed for every row. Looking at the code, there is room for improvement
> around Row construction, closure creation, and attribute lookups.
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