LadyForest opened a new pull request, #21504:
URL: https://github.com/apache/flink/pull/21504
## What is the purpose of the change
This pull request is a subtask of FLINK-21634 and is based on FLINK-22316 to
support
```sql
ALTER TABLE table_name MODIFY { <schema_component> | (<schema_component>
[, ...]) }
```
## Brief change log
TODO: Needs rebase master after FLINK-22315 is merged
## Verifying this change
This change added tests and can be verified as follows:
TODO: Needs rebase master after FLINK-22315 is merged
## 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 introduces a new feature? yes
- If yes, how is the feature documented? FLINK-22320 will document this
new feature
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