spena opened a new pull request, #25054:
URL: https://github.com/apache/flink/pull/25054
## What is the purpose of the change
Allows defining the WATERMARK and PRIMARY KEY in the CTAS statement.
PRIMARY KEY example:
```
CREATE TABLE table_name (PRIMARY KEY (person) NOT ENFORCED)
AS SELECT person, age FROM people;
```
WATERMARK example example:
```
CREATE TABLE table_name (WATERMARK FOR ts AS ts - INTERVAL '3' SECOND)
AS SELECT f0, f1, ts FROM people;
```
## Brief change log
- Added support for WATERMARK and PRIMARY KEY syntax in CTAS
## Verifying this change
This change added tests and can be verified as follows:
- Added unit tests to validation and converter classes
- Added integration tests
## 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? JavaDocs (will follow-up with
another PR to update docs)
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