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https://issues.apache.org/jira/browse/GEARPUMP-316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16039095#comment-16039095
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ASF GitHub Bot commented on GEARPUMP-316:
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GitHub user manuzhang opened a pull request:
https://github.com/apache/incubator-gearpump/pull/186
[GEARPUMP-316] Decouple groupBy from window
Be sure to do all of the following to help us incorporate your contribution
quickly and easily:
- [ ] Make sure the commit message is formatted like:
`[GEARPUMP-<Jira issue #>] Meaningful description of pull request`
- [ ] Make sure tests pass via `sbt clean test`.
- [ ] Make sure old documentation affected by the pull request has been
updated and new documentation added for new functionality.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/manuzhang/incubator-gearpump window
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-gearpump/pull/186.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 #186
----
commit 950f765c3488790afac04159b093de398a87fdfd
Author: manuzhang <owenzhang1...@gmail.com>
Date: 2017-06-05T04:54:12Z
[GEARPUMP-316] Decouple groupBy from window
----
> Don't enforce groupBy after window
> ----------------------------------
>
> Key: GEARPUMP-316
> URL: https://issues.apache.org/jira/browse/GEARPUMP-316
> Project: Apache Gearpump
> Issue Type: Sub-task
> Components: streaming
> Reporter: Manu Zhang
> Assignee: Manu Zhang
>
> Return a normal Stream instead of WindowStream on window function. Window
> function defines a boundary (window) for elements and the following
> operations should fall in corresponding boundaries. The boundary should not
> change until a new window function is defined. The default boundary is the
> {{GlobalWindows}} if not defined.
> This means there will be a window context for each underlying task. Elements
> are emitted in terms of the trigger semantics.
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