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https://issues.apache.org/jira/browse/SPARK-35638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17356912#comment-17356912
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Apache Spark commented on SPARK-35638:
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User 'ueshin' has created a pull request for this issue:
https://github.com/apache/spark/pull/32775
> Introduce Field 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
> Priority: Major
>
> 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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