Github user aljoscha commented on the issue:
https://github.com/apache/flink/pull/6130
I posted on the Jira issue:
https://issues.apache.org/jira/browse/FLINK-9545?focusedCommentId=16504451&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16504451:
What's the motivation for this feature?---
