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https://issues.apache.org/jira/browse/SPARK-41851?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17653746#comment-17653746
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Ruifeng Zheng commented on SPARK-41851:
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could you please also provide the code to create the dataframe?
a known issue is that `session.createDataFrame` doesn't handle NaN/None
correctly.
https://issues.apache.org/jira/browse/SPARK-41814
> Fix `nanvl` function
> --------------------
>
> Key: SPARK-41851
> URL: https://issues.apache.org/jira/browse/SPARK-41851
> Project: Spark
> Issue Type: Sub-task
> Components: Connect, PySpark
> Affects Versions: 3.4.0
> Reporter: Sandeep Singh
> Priority: Major
> Fix For: 3.4.0
>
>
> {code:java}
> File
> "/Users/s.singh/personal/spark-oss/python/pyspark/sql/connect/functions.py",
> line 313, in pyspark.sql.connect.functions.nanvl
> Failed example:
> df.select(nanvl("a", "b").alias("r1"), nanvl(df.a,
> df.b).alias("r2")).collect()
> Expected:
> [Row(r1=1.0, r2=1.0), Row(r1=2.0, r2=2.0)]
> Got:
> [Row(r1=1.0, r2=1.0), Row(r1=nan, r2=nan)]{code}
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