Github user StefanRRichter commented on the issue:
https://github.com/apache/flink/pull/4883
@PangZhi No updates, because I was on vacation and we currently give
priority to the release 1.4 testing. After that I will finish this, but from
the review comments, I would not expect that there are many changes to what I
implemented and this can be merged as soon as there is time to do so.---
