Github user huawei-flink commented on the issue:
https://github.com/apache/flink/pull/3783
@fhueske please have a look at this PR, it contains just the code
generation part with optional distinct.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---