GitHub user greghogan opened a pull request: https://github.com/apache/flink/pull/4372
[FLINK-7234] [docs] Fix CombineHint documentation ## What is the purpose of the change Update and correct the documentation for the use of CombineHint with `reduce` or `distinct`. The documentation for 1.2/1.3/1.4 has CombineHint described under `groupReduce`. ## Brief change log Documentation was moved and slightly reworded. This change is a trivial rework / code cleanup without any test coverage. ## Does this pull request potentially affect one of the following parts: Dependencies (does it add or upgrade a dependency): (yes / **no**) The public API, i.e., is any changed class annotated with @Public(Evolving): (yes / **no**) The serializers: (yes / **no** / don't know) The runtime per-record code paths (performance sensitive): (yes / **no** / don't know) Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know): ## Documentation Does this pull request introduce a new feature? (yes / **no**) If yes, how is the feature documented? (not applicable / **docs** / JavaDocs / not documented) You can merge this pull request into a Git repository by running: $ git pull https://github.com/greghogan/flink 7234_fix_combinehint_documentation Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/4372.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 #4372 ---- commit ec143c7ad08a47de96b418878efd540ec7328636 Author: Greg Hogan <c...@greghogan.com> Date: 2017-07-19T19:24:20Z [FLINK-7234] [docs] Fix CombineHint documentation The CombineHint documentation applies to DataSet#reduce not DataSet#reduceGroup and should also be note for DataSet#distinct. It is also set with .setCombineHint(CombineHint) rather than alongside the UDF parameter. ---- --- 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. ---