lincoln-lil opened a new pull request, #22972:
URL: https://github.com/apache/flink/pull/22972
## What is the purpose of the change
This is a subtask of FLINK-32457, it added test cases of unsupported usage
for JSON_OBJECTAGG & JSON_ARRAYAGG and also update the related docs(expand the
implementation to support mixed use with other aggregate functions will be
addressed in another pr).
## Brief change log
- added test cases of unsupported usage for JSON_OBJECTAGG & JSON_ARRAYAGG
- update function documentation to clarify the limitation
## Verifying this change
added test cases into `WrapJsonAggFunctionArgumentsRuleTest`
## 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)
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