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https://issues.apache.org/jira/browse/SPARK-28264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16990872#comment-16990872
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Hyukjin Kwon commented on SPARK-28264:
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[~rxin], I sent an email to dev list but leaving a comment here as well to make
sure.
I'll take over this since it's kind of stuck in the middle for now. I think
it's worthy to make changes within 3.0.
> Revisiting Python / pandas UDF
> ------------------------------
>
> Key: SPARK-28264
> URL: https://issues.apache.org/jira/browse/SPARK-28264
> Project: Spark
> Issue Type: Improvement
> Components: PySpark, SQL
> Affects Versions: 3.0.0
> Reporter: Reynold Xin
> Assignee: Reynold Xin
> Priority: Critical
>
> In the past two years, the pandas UDFs are perhaps the most important changes
> to Spark for Python data science. However, these functionalities have evolved
> organically, leading to some inconsistencies and confusions among users. This
> document revisits UDF definition and naming, as a result of discussions among
> Xiangrui, Li Jin, Hyukjin, and Reynold.
>
> See document here:
> [https://docs.google.com/document/d/10Pkl-rqygGao2xQf6sddt0b-4FYK4g8qr_bXLKTL65A/edit#|https://docs.google.com/document/d/10Pkl-rqygGao2xQf6sddt0b-4FYK4g8qr_bXLKTL65A/edit]
>
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