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https://issues.apache.org/jira/browse/FLINK-2237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15157179#comment-15157179
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ASF GitHub Bot commented on FLINK-2237:
---------------------------------------
Github user aalexandrov commented on the pull request:
https://github.com/apache/flink/pull/1517#issuecomment-187243415
I've added a [Google
Doc](https://docs.google.com/document/d/12yx7olVrkooceaQPoR1nkk468lIq0xOObY5ukWuNEcM/edit?usp=sharing)
where we can collaborate on the design of the experiments.
Once we're fixed on that, we will proceed by implementing them. The code
[will be available in the `flink-hashagg-experiments`
repository](https://github.com/TU-Berlin-DIMA/flink-hashagg-experiments).
> Add hash-based Aggregation
> --------------------------
>
> Key: FLINK-2237
> URL: https://issues.apache.org/jira/browse/FLINK-2237
> Project: Flink
> Issue Type: New Feature
> Reporter: Rafiullah Momand
> Assignee: Gabor Gevay
> Priority: Minor
>
> Aggregation functions at the moment are implemented in a sort-based way.
> How can we implement hash based Aggregation for Flink?
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