twalthr opened a new pull request #15798:
URL: https://github.com/apache/flink/pull/15798
## What is the purpose of the change
This fixes a couple of critical bugs in the stack that prevented Table API
expressions to be used for schema declaration. Due to time constraints, this PR
could not make it into the 1.13 release but should be added to the next bugfix
release for a smoother user experience. For testing and consistency, it exposes
the Table API expression `sourceWatermark()` in Java, Scala, and Python API.
## Brief change log
Updates at various locations that used `TableSchema` before.
## Verifying this change
This change added tests and can be verified as follows:
`DataStreamJavaITCase.testFromAndToChangelogStreamEventTime`
## 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/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
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