[jira] [Resolved] (SPARK-40121) Initialize projection used for Python UDF

["Hyukjin Kwon (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-40121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon resolved SPARK-40121.
----------------------------------
    Fix Version/s: 3.3.1
                   3.1.4
                   3.2.3
                   3.4.0
       Resolution: Fixed

Issue resolved by pull request 37552
[https://github.com/apache/spark/pull/37552]

> Initialize projection used for Python UDF
> -----------------------------------------
>
>                 Key: SPARK-40121
>                 URL: https://issues.apache.org/jira/browse/SPARK-40121
>             Project: Spark
>          Issue Type: Bug
>          Components: PySpark, SQL
>    Affects Versions: 3.1.3, 3.3.0, 3.2.2, 3.4.0
>            Reporter: Hyukjin Kwon
>            Assignee: Hyukjin Kwon
>            Priority: Major
>             Fix For: 3.3.1, 3.1.4, 3.2.3, 3.4.0
>
>
> {code}
> >>> from pyspark.sql.functions import udf, rand
> >>> spark.range(10).select(udf(lambda x: x)(rand())).show()
> {code}
> {code}
> java.lang.NullPointerException
> 	at org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificMutableProjection.apply(Unknown Source)
> 	at org.apache.spark.sql.execution.python.EvalPythonExec.$anonfun$doExecute$10(EvalPythonExec.scala:126)
> 	at scala.collection.Iterator$$anon$10.next(Iterator.scala:461)
> 	at scala.collection.Iterator$$anon$10.next(Iterator.scala:461)
> 	at scala.collection.Iterator$GroupedIterator.takeDestructively(Iterator.scala:1161)
> 	at scala.collection.Iterator$GroupedIterator.go(Iterator.scala:1176)
> 	at scala.collection.Iterator$GroupedIterator.fill(Iterator.scala:1213)
> {code}



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