LadyForest opened a new pull request, #22160: URL: https://github.com/apache/flink/pull/22160
## What is the purpose of the change This PR tries to improve the `StreamNonDeterminisiticUpdatePlanVsitior` by supporting all kinds of `RexNode` when computing the source mapping relationship. ## Brief change log - Leverage the source mapping calculation to `FlinkRexUtil#findAllInputRefs`. - Extend the return type to `Map<Integer, List<Integer>>` because a field from an outer sub-query may be derived from one or more inner fields. ## Verifying this change This change added tests and can be verified as follows: - Add `testNonDeterministicProjectionWithSinkWithoutPk` to verify the source mapping calculation can handle `IF` or `CASE WHEN` with multiple inputs. ## 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 - If yes, how is the feature documented? not applicable -- 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. To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org