Github user fhueske commented on the issue:
https://github.com/apache/flink/pull/4199
Hi @twalthr, I looked into this PR again. We should add this to the next
release to also support window joins on a window aggregated table.
I tried to rebase it on the current master. Unfortunately, this resulted in
many conflicts. Can you rebase the PR (or manually port the changes to the
current master)?
Thanks, Fabian---
