gaborgsomogyi opened a new pull request, #26933:
URL: https://github.com/apache/flink/pull/26933
## What is the purpose of the change
Modules like the state processor API could add SQL functions which are
coming from external connectors like Kafka, Iceberg, etc... It would be good to
add a generic way to add such methods. The intended end-user interaction would
look like the following:
- Add Kafka connector jar to the classpath
- `LOAD MODULE state`
- `SELECT * FROM get_kafka_offsets(...)`
In this PR I've added purely the possibility to load SQL functions with
service loader.
## Brief change log
Added module dynamic function loading possibility.
## Verifying this change
Added new automated test.
## 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? yes
- If yes, how is the feature documented? not applicable
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