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https://issues.apache.org/jira/browse/FLINK-4736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15549920#comment-15549920
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ASF GitHub Bot commented on FLINK-4736:
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Github user fhueske commented on the issue:
https://github.com/apache/flink/pull/2601
PR looks good to me.
+1 to merge
> Don't duplicate fields in Ordering
> ----------------------------------
>
> Key: FLINK-4736
> URL: https://issues.apache.org/jira/browse/FLINK-4736
> Project: Flink
> Issue Type: Improvement
> Components: Core
> Affects Versions: 1.2.0
> Reporter: Greg Hogan
> Assignee: Greg Hogan
> Priority: Minor
> Fix For: 1.2.0
>
>
> Duplicate fields should not be appended to an ordering. In an ordering each
> subsequent field is only used as a comparison when all prior fields test
> equal; therefore, a repeated field cannot contribute to the ordering.
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