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https://issues.apache.org/jira/browse/SPARK-3655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14694353#comment-14694353
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SWETHARAM KASIREDDI commented on SPARK-3655:
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[~koert]
Could you please provide an example call as to how spark-sorted should be used
for my scenario?
For a bunch of user sessions, I have to first Sort by session Id which is the
key and further sort the values by timeStamp which is present in the value.
So basically I need to have all the sessionIds sorted and related values for
each sessionId be sorted by timestamp.
Thanks,
Swetha
> Support sorting of values in addition to keys (i.e. secondary sort)
> -------------------------------------------------------------------
>
> Key: SPARK-3655
> URL: https://issues.apache.org/jira/browse/SPARK-3655
> Project: Spark
> Issue Type: New Feature
> Components: Spark Core
> Affects Versions: 1.1.0, 1.2.0
> Reporter: koert kuipers
> Assignee: Koert Kuipers
>
> Now that spark has a sort based shuffle, can we expect a secondary sort soon?
> There are some use cases where getting a sorted iterator of values per key is
> helpful.
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