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Date: Tue, 15 Nov 2016 10:28:58 +0000 (UTC)
From: "Timo Walther (JIRA)" <jira@apache.org>
To: issues@flink.apache.org
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Subject: [jira] [Commented] (FLINK-4832) Count/Sum 0 elements
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archived-at: Tue, 15 Nov 2016 10:29:00 -0000


    [ https://issues.apache.org/jira/browse/FLINK-4832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15666782#comment-15666782 ] 

Timo Walther commented on FLINK-4832:
-------------------------------------

We should first fix FLINK-4263 before we implement this issue. I will assign it to me.

> Count/Sum 0 elements
> --------------------
>
>                 Key: FLINK-4832
>                 URL: https://issues.apache.org/jira/browse/FLINK-4832
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API & SQL
>            Reporter: Timo Walther
>            Assignee: Anton Mushin
>
> Currently, the Table API is unable to count or sum up 0 elements. We should improve DataSet aggregations for this. Maybe by union the original DataSet with a dummy record or by using a MapPartition function. Coming up with a good design for this is also part of this issue.


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