WeiZhong94 opened a new pull request #13462:
URL: https://github.com/apache/flink/pull/13462
## What is the purpose of the change
*This pull request introduces rules and python side implementation to ensure
the basic functionality of the general Python UDAF.*
## Brief change log
- *Implement relevant Python UDAF user API.*
- *Add rules and physical nodes to translate the Python UDAF call to
python operators.*
- *Support running Python UDAF in python UDF worker.*
## Verifying this change
This change is already covered by existing tests.
## 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/Mesos, 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? (docs)
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