leonardBang opened a new pull request #12873:
URL: https://github.com/apache/flink/pull/12873
## What is the purpose of the change
* This pull request Improve FlinkCalcMergeRule to merge calc nodes better.
## Brief change log
- Improve the logic to judge two Calc node can merge or not: If two
Calcs can merge, each bottomCalc's non-deterministic RexNode should appear at
most once in topCalc's project fields and condition field.
## Verifying this change
Add plan tests to cover, checked other plan tests are still ok.
## 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, Yarn/Mesos, ZooKeeper: (no)
- The S3 file system connector: (no)
## Documentation
- Does this pull request introduce a new feature? (no)
- If yes, how is the feature documented? (not applicable / docs / JavaDocs
/ not documented)
----------------------------------------------------------------
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.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
