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https://issues.apache.org/jira/browse/SPARK-33489?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17237853#comment-17237853
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Hyukjin Kwon commented on SPARK-33489:
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cc [~bryanc] FYI. Does Arrow support null type?

> Support null for conversion from and to Arrow type
> --------------------------------------------------
>
>                 Key: SPARK-33489
>                 URL: https://issues.apache.org/jira/browse/SPARK-33489
>             Project: Spark
>          Issue Type: Improvement
>          Components: PySpark
>    Affects Versions: 3.0.1
>            Reporter: Yuya Kanai
>            Priority: Minor
>
> I got below error when using from_arrow_type() in pyspark.sql.pandas.types
> {{Unsupported type in conversion from Arrow: null}}
> I noticed NullType exists under pyspark.sql.types so it seems possible to 
> convert from pyarrow null to pyspark null type and vice versa.



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