SinBex opened a new pull request, #25578:
URL: https://github.com/apache/flink/pull/25578
## What is the purpose of the change
To implement the Adaptive Broadcast Join capability proposed by FLIP-470,
while enabling Adaptive Broadcast Join, the compatible join operators will be
replaced with Adaptive Broadcast Join operators in the table-planner phase, and
the corresponding OperatorFactory is introduced.
## Brief change log
- *Introduce configuration options for adaptive broadcast join.*
- *Introduce Exec node for adaptive broadcast join.*
- *Introduce AdaptiveBroadcastJoinOperatorFactory.*
- *Introduce AdaptiveBroadcastJoinProcessor to inject adaptive broadcast
join.*
## Verifying this change
This change added tests and can be verified as follows:
- *Add IT and UT cases to verify the correctness of injecting the Adaptive
Broadcast Join operator and generating dynamic join operators.*
- *The proposed changes will be tested for correctness and stability in a
real cluster.*
## 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? (docs and JavaDocs )
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