Github user fhueske commented on the issue:
https://github.com/apache/flink/pull/3806
Hi @sunjincheng121, thanks for the PR.
I would like to keep the term `Group Window` and think that
`WindowWithoutAlias` might be confusing. So, I'd rather keep the docs as they
are. We will need to go over this anyways when we add Over windows and
non-windowed aggregates.
What do you think?
Thanks, Fabian
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