GitHub user fhueske opened a pull request:
https://github.com/apache/flink/pull/3083
[FLINK-2662] [optimizer] Fix translation of broadcasted unions.
Fix optimizer to support union with > 2 broadcasted inputs.
1. `BinaryUnionDescriptor` is changed to compute fully replicated global
property if both inputs are fully replicated.
2. Enumeration of plans for binary union is changed to enforce local
forward connection if input is fully replicated.
3. Add a test to check that union with three inputs can be on broadcasted
side of join (fully replicated property is requested and pushed to all inputs
of the union).
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/fhueske/flink unionBug3
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3083.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 #3083
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commit a0019d386e09f727874e54b7c8ce2ca94b26f2e5
Author: Fabian Hueske <fhue...@apache.org>
Date: 2017-01-05T23:00:30Z
[FLINK-2662] [optimizer] Fix translation of broadcasted unions.
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