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https://issues.apache.org/jira/browse/SPARK-35638?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-35638.
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Fix Version/s: 3.2.0
Resolution: Fixed
Issue resolved by pull request 32775
[https://github.com/apache/spark/pull/32775]
> Introduce InternalField to manage dtypes and StructFields.
> ----------------------------------------------------------
>
> Key: SPARK-35638
> URL: https://issues.apache.org/jira/browse/SPARK-35638
> Project: Spark
> Issue Type: Improvement
> Components: PySpark
> Affects Versions: 3.2.0
> Reporter: Takuya Ueshin
> Assignee: Takuya Ueshin
> Priority: Major
> Fix For: 3.2.0
>
>
> Currently there are some performance issues in the pandas-on-Spark layer.
> One of them is accessing Java DataFrame and run analysis phase too many
> times, especially just for retrieving the current column names or data types.
> We should reduce the amount of unnecessary access.
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