GitHub user tgroh opened a pull request: https://github.com/apache/beam/pull/2325
[BEAM-632] Fix Flatten PCollections in Dataflow Be sure to do all of the following to help us incorporate your contribution quickly and easily: - [ ] Make sure the PR title is formatted like: `[BEAM-<Jira issue #>] Description of pull request` - [ ] Make sure tests pass via `mvn clean verify`. (Even better, enable Travis-CI on your fork and ensure the whole test matrix passes). - [ ] Replace `<Jira issue #>` in the title with the actual Jira issue number, if there is one. - [ ] If this contribution is large, please file an Apache [Individual Contributor License Agreement](https://www.apache.org/licenses/icla.txt). --- You can merge this pull request into a Git repository by running: $ git pull https://github.com/tgroh/beam dataflow_flatten Alternatively you can review and apply these changes as the patch at: https://github.com/apache/beam/pull/2325.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 #2325 ---- commit 086d95f78e3188ea0036f3c4db7979e204775e4c Author: Thomas Groh <tg...@google.com> Date: 2017-03-24T22:38:20Z Fix EmptyFlattenAsCreateFactory The input types of Flatten and Create don't match up, so a composite must be provided instead of Create directly. commit 3982110f20e17f6022ec30d1ecb44e47653f12bb Author: Thomas Groh <tg...@google.com> Date: 2017-03-24T21:45:08Z Reenable Flatten Tests in the Dataflow Runner commit 125c4b09639e60ad3be5b34131185806b07b6b5f Author: Thomas Groh <tg...@google.com> Date: 2017-03-24T22:14:27Z Explicitly duplicate input PCollections in Dataflow ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---