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https://issues.apache.org/jira/browse/SPARK-22221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16195874#comment-16195874
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Wes McKinney commented on SPARK-22221:
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Hm, I'm not sure that using a MultiIndex is the right semantics (since the
index is not a column). If you have a struct column, the right data structure
to convert to at the moment is a dict.
> Add User Documentation for Working with Arrow in Spark
> ------------------------------------------------------
>
> Key: SPARK-22221
> URL: https://issues.apache.org/jira/browse/SPARK-22221
> Project: Spark
> Issue Type: Sub-task
> Components: PySpark, SQL
> Affects Versions: 2.3.0
> Reporter: Bryan Cutler
>
> There needs to be user facing documentation that will show how to enable/use
> Arrow with Spark, what the user should expect, and describe any differences
> with similar existing functionality.
> A comment from Xiao Li on https://github.com/apache/spark/pull/18664
> Given the users/applications contain the Timestamp in their Dataset and their
> processing algorithms also need to have the codes based on the corresponding
> time-zone related assumptions.
> * For the new users/applications, they first enabled Arrow and later hit an
> Arrow bug? Can they simply turn off spark.sql.execution.arrow.enable? If not,
> what should they do?
> * For the existing users/applications, they want to utilize Arrow for better
> performance. Can they just turn on spark.sql.execution.arrow.enable? What
> should they do?
> Note Hopefully, the guides/solutions are user-friendly. That means, it must
> be very simple to understand for most users.
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