[GitHub] yanghua opened a new pull request #7470: [FLINK-11283] Accessing the key when processing connected keyed stream

[GitBox <gi...@apache.org>]

yanghua opened a new pull request #7470: [FLINK-11283] Accessing the key when processing connected keyed stream
URL: https://github.com/apache/flink/pull/7470
 
 
   ## What is the purpose of the change
   
   *This pull request introduces a `CoKeyedProcessFunction` for keyed connected stream*
   
   ## Brief change log
   
     - *Introduced a `CoKeyedProcessFunction` for keyed connected stream*
     - *Add test case and changed documentation*
   
   
   ## Verifying this change
   
   This change is already covered by existing tests, such as *PureKeyedCoProcessOperatorTest and SideOutputITCase*.
   
   ## 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)
     - The S3 file system connector: (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**)
   

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