Re: Best practice to handle update messages in stream

2019-03-21 Thread Piotr Nowojski
Hi, There is an ongoing work [1] to support natively the streams like you described (we call them upsert streams/changelogs). But it boils down to the exactly the same thing you have done - aggregating the records per key and adding `latest` aggregation function. Until we support this

Best practice to handle update messages in stream

2019-03-21 Thread 徐涛
Hi Experts, Assuming there is a stream which content is like this: Seq ID MONEY 1.100 100 2.100 200 3.101 300 The record of Seq#2 is updating record of Seq#1, changing the money