Re: Watermarks per key
Posted by
Fabian Hueske-2 on
URL: http://deprecated-apache-flink-user-mailing-list-archive.369.s1.nabble.com/Watermarks-per-key-tp11628p11632.html
Hi Jordan,
it is not possible to generate watermarks per key. This feature has been requested a couple of times but I think there are no plans to implement that.
As far as I understand, the management of watermarks would be quite expensive (maintaining several watermarks, purging watermarks of expired keys, etc.) but Aljoscha (in CC) can share details about that.
Best,
Fabian