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From "Dongjoon Hyun (Jira)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-30012) Change classes extending scala collection classes to work with 2.13
Date Tue, 03 Dec 2019 17:00:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-30012?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dongjoon Hyun reassigned SPARK-30012:
-------------------------------------

    Assignee: Sean R. Owen

> Change classes extending scala collection classes to work with 2.13
> -------------------------------------------------------------------
>
>                 Key: SPARK-30012
>                 URL: https://issues.apache.org/jira/browse/SPARK-30012
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Spark Core, SQL
>    Affects Versions: 3.0.0
>            Reporter: Sean R. Owen
>            Assignee: Sean R. Owen
>            Priority: Minor
>
> Several classes in the code base extend Scala collection classes, like:
> - ExternalAppendOnlyMap
> - CaseInsensitiveMap
> - AttributeMap
> - (probably more I haven't gotten to yet)
> The collection hierarchy changed in 2.13, and like elsewhere, I don't see that it's possible
to use a compat library or clever coding to bridge the difference. I think we need to maintain
two implementations in parallel source trees, possibly with a common ancestor with the commonalities.



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