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https://issues.apache.org/jira/browse/FLINK-758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14217733#comment-14217733
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ASF GitHub Bot commented on FLINK-758:
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Github user uce commented on the pull request:
https://github.com/apache/incubator-flink/pull/63#issuecomment-63621886
I'll think it's best to close this PR. It's superceded by the upcoming
intermediate result changes and #210. Nobody complained about not having a
fold-style reduce with an initial value, so I think it's OK to discard these
features as well. I will only merge the byte array serialization commit
(1b893a1245c1f7317c9f0a062fc38ceabad7afcf) of this PR as I think it might be
useful in general.
> Add count method to DataSet and implement CountOperator
> -------------------------------------------------------
>
> Key: FLINK-758
> URL: https://issues.apache.org/jira/browse/FLINK-758
> Project: Flink
> Issue Type: New Feature
> Components: Java API, Scala API
> Affects Versions: 0.7.0-incubating
> Reporter: GitHub Import
> Labels: github-import
> Fix For: pre-apache
>
> Attachments: pull-request-758-7518001488867571817.patch
>
>
> At the request of @twalthr. This is the count operator I've implemented some
> time ago to get the to know the new Java API. It introduces
> `DataSet.count()`, which is executed as a map (to ones) and reduce (sum up
> the ones). I initially didn't do the PR, because of the following problem:
> empty DataSets don't work as the first map won't have any input to operate on.
> If more people think that we should include this operator we can think about
> a possible solution to the problem.
> ---------------- Imported from GitHub ----------------
> Url: https://github.com/stratosphere/stratosphere/pull/758
> Created by: [uce|https://github.com/uce]
> Labels: enhancement, java api,
> Milestone: Release 0.6 (unplanned)
> Created at: Tue May 06 10:42:33 CEST 2014
> State: open
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