trushev opened a new pull request, #20261:
URL: https://github.com/apache/flink/pull/20261
## What is the purpose of the change
This PR is aimed at replacing current extraction algorithm with new one
which covers more complex case with deep nested predicate:
for all n > 0
((((((((a0 and b0) or a1) and b1) or a2) and b2) or a3) ... and bn-1) or an)
=> (a0 or a1 or ... or an)
## Brief change log
- Introduced new algorithm placed in `FlinkRexExtract`
## Verifying this change
This change added tests and can be verified as follows:
- Added unit tests for extraction `FlinkRexExtractTest`
- Added test to `JoinTest` to verify changed sql plan
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (yes / **no**)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (yes / **no**)
- The serializers: (yes / **no** / don't know)
- The runtime per-record code paths (performance sensitive): (yes / **no**
/ don't know)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (yes / **no** / don't
know)
- The S3 file system connector: (yes / **no** / don't know)
## Documentation
- Does this pull request introduce a new feature? (yes / **no**)
- If yes, how is the feature documented? (not applicable / docs / JavaDocs
/ not documented)
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