[jira] [Commented] (FLINK-6335) Parse DISTINCT over grouped window in stream SQL

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-6335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15981642#comment-15981642 ] 

ASF GitHub Bot commented on FLINK-6335:
---------------------------------------

GitHub user haohui opened a pull request:

    https://github.com/apache/flink/pull/3764

    [FLINK-6335] Parse DISTINCT over grouped windows in stream SQL.

    This PR only supports parsing distinct aggregations over grouped windows. It essentially allows the `DataStreamAggregateRule` to translate the supported queries.
    
    The runtime support will be added in FLINK-6373.

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

    $ git pull https://github.com/haohui/flink FLINK-6335

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

    https://github.com/apache/flink/pull/3764.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 #3764
    
----
commit 7aa3d68765d475800226154de3da443f25a29b2f
Author: Haohui Mai <wh...@apache.org>
Date:   2017-04-24T18:22:07Z

    [FLINK-6335] Parse DISTINCT over grouped window in stream SQL.

----


> Parse DISTINCT over grouped window in stream SQL
> ------------------------------------------------
>
>                 Key: FLINK-6335
>                 URL: https://issues.apache.org/jira/browse/FLINK-6335
>             Project: Flink
>          Issue Type: Bug
>            Reporter: Haohui Mai
>            Assignee: Haohui Mai
>
> The SQL on the batch side supports the {{DISTINCT}} keyword over aggregation. This jira proposes to support the {{DISTINCT}} keyword on streaming aggregation using the same technique on the batch side.



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