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https://issues.apache.org/jira/browse/FLINK-3219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15094885#comment-15094885
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ASF GitHub Bot commented on FLINK-3219:
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GitHub user greghogan opened a pull request:
https://github.com/apache/flink/pull/1501
[FLINK-3219] [java scala] Implement DataSet.count and DataSet.collect using
a single operator
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/greghogan/flink
3219_implement_dataset_count_using_a_single_operator
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1501.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1501
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commit 8ab5af4d1280a1ef3321cb4aa86017f5093eb227
Author: Greg Hogan <[email protected]>
Date: 2016-01-11T22:04:31Z
[FLINK-3219] [java scala] Implement DataSet.count and DataSet.collect using
a single operator
----
> Implement DataSet.count using a single operator
> -----------------------------------------------
>
> Key: FLINK-3219
> URL: https://issues.apache.org/jira/browse/FLINK-3219
> Project: Flink
> Issue Type: Improvement
> Reporter: Greg Hogan
> Assignee: Greg Hogan
> Priority: Minor
>
> {{DataSet.count}} is currently implemented using a {{FlatMapFunction}}
> followed by a {{DiscardingOutputFormat}}. As noted by [~StephanEwen] in
> [FLINK-2716] this can be done with only a {{RichOutputFormat}}.
> This change is also applicable to {{DataSet.collect}} and
> {{Utils.CollectHelper}}.
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