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https://issues.apache.org/jira/browse/SPARK-24554?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16511691#comment-16511691
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Bryan Cutler commented on SPARK-24554:
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There still is work to be done to add a Map logical type to Arrow C++/Python
and Java. Then finally Arrow integration tests (linked) can be completed. At
that point we can add this to Spark.
> Add MapType Support for Arrow in PySpark
> ----------------------------------------
>
> Key: SPARK-24554
> URL: https://issues.apache.org/jira/browse/SPARK-24554
> Project: Spark
> Issue Type: Sub-task
> Components: PySpark, SQL
> Affects Versions: 2.3.1
> Reporter: Bryan Cutler
> Priority: Major
>
> Add support for MapType in Arrow related classes in Scala/Java and pyarrow
> functionality in Python.
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