GitHub user aljoscha opened a pull request:
https://github.com/apache/flink/pull/1740
[FLINK-3538] Streamline Scala DataStream.join/coGroup
This enforces that the user always has to specify keys for both inputs
before .window() can be called.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/aljoscha/flink scala-stream-join-fix
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1740.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 #1740
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commit 70391df2979ee59d6ddad96c8fcb0e6a5a74ebf1
Author: Aljoscha Krettek <[email protected]>
Date: 2016-02-29T16:02:38Z
[FLINK-3538] Streamline Scala DataStream.join/coGroup
This enforces that the user always has to specify keys for both inputs
before .window() can be called.
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