Vancior opened a new pull request, #20144: URL: https://github.com/apache/flink/pull/20144
## What is the purpose of the change This PR implements keyed broadcast processing ( `KeyedStream.connect(BroadcastStream).process(KeyedBroadcastProcessFunction)` ) in PyFlink. ## Brief change log - add `KeyedBroadcastProcessFunction` interface in Python - introduce `KeyedBroadcastStateTransformation` and its translator in compile keyed broadcast processing into `PythonKeyedCoProcessor` or `PythonBatchKeyedCoBroadcastProcessOperator`. ## Verifying this change This change added tests and can be verified as follows: - integration test `test_keyed_co_broadcast_process` in test_data_stream.py ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (no) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (yes) - The serializers: (no) - The runtime per-record code paths (performance sensitive): (no) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (no) - The S3 file system connector: (no) ## Documentation - Does this pull request introduce a new feature? (yes) - If yes, how is the feature documented? (Python Sphinx doc) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org