Re: Count Window Trigger that only fires once

2019-05-23 Thread Congxian Qiu
Hi Frank, Seems you want a custom trigger, maybe the doc[1] can help. [1]  https://ci.apache.org/projects/flink/flink-docs-release-1.8/dev/stream/operators/windows.html#triggers Best Congxian On May 23, 2019, 23:38 +0800, Frank Wilson , wrote: > Hi, > > Is there a way to make the count window tr

Count Window Trigger that only fires once

2019-05-23 Thread Frank Wilson
Hi, Is there a way to make the count window trigger fire only once? I would like a session window to only emit the first element it receives immediately rather than waiting until the watermark passes the end of the window. Thanks, Frank