lincoln-lil opened a new pull request, #25612:
URL: https://github.com/apache/flink/pull/25612
## What is the purpose of the change
This pr port the bugfix of CALCITE-6317 to fix the incorrectly constant
pullup when group keys in aggregate are NULL
Before upgraded corresponding calcite version(1.37), we can have the fix
that copy the related `RelMdPredicates` to flink and remove it after calcite
version upgrading done.
## Brief change log
Copy the `RelMdPredicates` based on 1.32.0 and add the fix of CALCITE-6317
## Verifying this change
Add new case for `GroupingSetsTest`
## 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): (no)
- 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? (no)
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