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https://issues.apache.org/jira/browse/SPARK-50450?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan updated SPARK-50450:
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Parent Issue: SPARK-57215 (was: SPARK-48338)
> [M2] FOR statement investigate SparkPlan.executeToIterator optimization
> -----------------------------------------------------------------------
>
> Key: SPARK-50450
> URL: https://issues.apache.org/jira/browse/SPARK-50450
> Project: Spark
> Issue Type: Sub-task
> Components: Spark Core
> Affects Versions: 4.0.0
> Reporter: Dusan Tisma
> Priority: Major
>
> Investigate and implement using SparkPlan.executeToIterator instead of
> DataFrame.toLocalIterator in FOR statement, to reduce cost of data conversion.
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