LadyForest opened a new pull request, #22820:
URL: https://github.com/apache/flink/pull/22820
## What is the purpose of the change
This PR fixes the issue that `COMPILED PLAN` statement may generate invalid
JSON when overwriting the existing JSON with a shorter version.
## Brief change log
- Add `TRUNCATE_EXISTING` to `ExecNodeGraphInternalPlan#writeToFile`
## Verifying this change
This change is already covered by existing tests, such as
`CompilePlanITCase#testCompilePlanOverwrite`.
- Roll back the changes made on src and run this case will reproduce the
error. Apply the changes made on src and re-run the case to verify the fix.
## 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? N.A.
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