xuzhiwen1255 opened a new pull request, #21971:
URL: https://github.com/apache/flink/pull/21971
## What is the purpose of the change
The field configuration description of datagen is optional, but in actual
sequence mode, start and end are required, as a user, I would expect the
positive integer values to be returned starting from 0 if I don't specify
anything here.
## Brief change log
-Added default value for sequence mode
-Modify the original test method, because it is not applicable after adding
the default
-Modify the document default value description
## Verifying this change
This change modifies the original testLackStartForSequence and
testLackEndForSequence methods of DataGenTableSourceFactoryTest and replaces
them with testDefaultValueForSequence and testStartEndForSequence methods to
verify 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
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