JingsongLi opened a new pull request #16091:
URL: https://github.com/apache/flink/pull/16091
## What is the purpose of the change
At present, each task does its own upsert. We need to simulate the external
connector and use the global map to do the upsert.
This will reduce bugs from global upsert.
## Verifying this change
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) no
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (yes / no) no
- The serializers: (yes / no / don't know) no
- The runtime per-record code paths (performance sensitive): (yes / no /
don't know) no
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: (yes / no / don't
know) no
- The S3 file system connector: (yes / no / don't know) no
## Documentation
- Does this pull request introduce a new feature? (yes / no) no
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