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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-3087) Table API do not support multi count in aggregation.
Date Fri, 27 Nov 2015 07:03:10 GMT

    [ https://issues.apache.org/jira/browse/FLINK-3087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15029534#comment-15029534

ASF GitHub Bot commented on FLINK-3087:

GitHub user ChengXiangLi opened a pull request:


    [FLINK-3087] [Table-API] support multi count in aggregation

    The `Literal(1)` is used as the IntermediateField of `Count` aggregation, so multi `Count`
looks the same in `ExpandAggregations`.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/ChengXiangLi/flink countAggregation

Alternatively you can review and apply these changes as the patch at:


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1414
commit d83690c521b22e7af339353ed1b06b3d199e9c42
Author: chengxiang li <chengxiang.li@intel.com>
Date:   2015-11-27T06:46:29Z

    [FLINK-3087] [Table-API] support multi count in aggregation


> Table API do not support multi count in aggregation.
> ----------------------------------------------------
>                 Key: FLINK-3087
>                 URL: https://issues.apache.org/jira/browse/FLINK-3087
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API
>    Affects Versions: 0.10.0
>            Reporter: Chengxiang Li
>            Assignee: Chengxiang Li
> Multi {{count}} in aggregation is not supported, for example:
> {code:java}
> table.select("a.count", "b.count")
> {code}
> It's valid in grammar, besides, {{a.count}} and {{b.count}} may have different values
actually if NULL value handling is enabled.

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