ashulin opened a new pull request #18256:
URL: https://github.com/apache/flink/pull/18256
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## What is the purpose of the change
Currently, if you want to use the `group-offset` startup mode, you must
first start with another startup mode and submit the offset, and then use this
mode;
This behavior is unnecessary.
The purpose of this change is to allow the `auto.offset.reset` properties to
be set when using the `group-offset` startup mode instead of forcing the use of
`OffsetResetStrategy.NONE`
https://issues.apache.org/jira/browse/FLINK-25503
## Brief change log
For Kafka Source Table API, when `scan.startup.mode` is `group-offsets`, the
properties `properties.auto.offset.reset` is allowed to be set and used;
## Verifying this change
1. The operation of setting options has been covered by test cases.
2. Added a test case for using `OffsetResetStrategy.NONE` or
`OffsetResetStrategy.EARLIEST` when the `group-offset` startup mode is used and
the submitted offset does not exist for the `group.id`
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (yes / **no**)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (yes / **no**)
- The serializers: (yes / **no** / don't know)
- The runtime per-record code paths (performance sensitive): (yes / **no**
/ don't know)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (yes / **no** / don't
know)
- The S3 file system connector: (yes / **no** / don't know)
## Documentation
- Does this pull request introduce a new feature? (yes / **no**)
- If yes, how is the feature documented? (not applicable / docs / JavaDocs
/ not documented)
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