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https://issues.apache.org/jira/browse/SPARK-39142?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-39142:
-----------------------------------
Labels: pull-request-available (was: )
> Type overloads in `pandas_udf`
> -------------------------------
>
> Key: SPARK-39142
> URL: https://issues.apache.org/jira/browse/SPARK-39142
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Affects Versions: 3.2.1
> Reporter: Philip Kahn
> Priority: Minor
> Labels: pull-request-available
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> It seems that the `returnType` in the type overloads for `pandas_udf` never
> specify a generic for PySpark SQL types or explicitly list those types:
>
> [https://github.com/apache/spark/blob/f84018a4810867afa84658fec76494aaae6d57fc/python/pyspark/sql/pandas/functions.pyi]
>
> This results in static type checkers flagging the type of the decorated
> functions (and their parameters) as incorrect, see
> [https://github.com/microsoft/pylance-release/issues/2789] as an example.
>
> For someone familiar with the code base, this should be a very fast patch.
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