xuyangzhong opened a new pull request #17537:
URL: https://github.com/apache/flink/pull/17537
## What is the purpose of the change
This change aims to add the watermark strategy to Source Provider which is
introduced from FLIP-27.
Before, when the source was the new Source, it was always added with
WatermarkStrategy.noWatermarks().
## Brief change log
- Generate the watermark strategy by the watermarkExpr from
WatermarkPushDownSepc in CommonExecTableSourceScan.
- Mock a TestValuesSource which implements the new Source for testing.
- Change the table config option from 'disable-lookup' to 'enable-lookup'
to be unified with other options.
- Separate table sources, table sinks, source functions, sink functions
and lookup functions from TestValuesTableFactory and
TestValuesTableRuntimeFunctions to single classes.
## Verifying this change
- TestValuesSource is mocked to test this change.
- Some test cases are added to test the TestValuesSource and this change.
## 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?
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