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https://issues.apache.org/jira/browse/FLINK-6335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15981642#comment-15981642
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ASF GitHub Bot commented on FLINK-6335:
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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
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commit 7aa3d68765d475800226154de3da443f25a29b2f
Author: Haohui Mai <[email protected]>
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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