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https://issues.apache.org/jira/browse/FLINK-1112?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14229995#comment-14229995
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ASF GitHub Bot commented on FLINK-1112:
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Github user fhueske commented on the pull request:
https://github.com/apache/incubator-flink/pull/209#issuecomment-65091843
Thanks for the pull request!
I added some comments in-line.
Could you also add the following tests to the Java and Scala integration
tests:
- KeyExtractor returns a Tuple2 as key
- GroupReduce function is combinable (including the checks that the
elements are processed by the combiner in the right order).
Thank you very much!
> Add GroupSorting with KeySelectors
> ----------------------------------
>
> Key: FLINK-1112
> URL: https://issues.apache.org/jira/browse/FLINK-1112
> Project: Flink
> Issue Type: Improvement
> Components: Java API, Scala API
> Reporter: Fabian Hueske
> Assignee: Mingliang Qi
>
> Group sorting is currently only supported for field-index keys and not for
> KeySelectors.
> This feature was requested.
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