I'd like to proceed with the vote for FLIP-251 [1], as no objections or issues were raised in [2].
The vote will last for at least 72 hours unless there is an objection or insufficient votes. [1] https://cwiki.apache.org/confluence/display/FLINK/FLIP-251%3A+Support+collecting+arbitrary+number+of+streams [2] https://lists.apache.org/thread/ksv71m7rvcwslonw07h2qnw77zpqozvh
