y0908105023 opened a new pull request, #20846:
URL: https://github.com/apache/flink/pull/20846
## What is the purpose of the change
*Add date_add sql function support*
## Brief change log
*date_add*
- *add sql function date_add to BuiltInFunction*
- *also support streaming function date_add*
## Verifying this change
Please make sure both new and modified tests in this PR follows the
conventions defined in our code quality guide:
https://flink.apache.org/contributing/code-style-and-quality-common.html#testing
This change is already covered by existing tests, such as *(please describe
tests)*.
*ScalarFunctionsTest#testDateTypeAdd*
*ScalarFunctionsTest#testDateTypeMinus*
## 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)
*It does not affect any parts*
## Documentation
- Does this pull request introduce a new feature? (yes / no)
- If yes, how is the feature documented? (not applicable / docs / JavaDocs
/ not documented)
*No*
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