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https://issues.apache.org/jira/browse/FLINK-6789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16067690#comment-16067690
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ASF GitHub Bot commented on FLINK-6789:
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Github user zhangminglei closed the pull request at:
https://github.com/apache/flink/pull/4215
> Remove duplicated test utility reducer in optimizer
> ---------------------------------------------------
>
> Key: FLINK-6789
> URL: https://issues.apache.org/jira/browse/FLINK-6789
> Project: Flink
> Issue Type: Improvement
> Components: Optimizer, Tests
> Affects Versions: 1.4.0
> Reporter: Chesnay Schepler
> Assignee: mingleizhang
>
> The {{DummyReducer}} and {{SelectOneReducer}} in
> {{org.apache.flink.optimizer.testfunctions}} are identical; we could remove
> one of them.
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