Hi clay, Keyed group by:
> SELECT a, SUM(b) as d > FROM Orders > GROUP BY a Non Keyed group by: > SELECT SUM(b) as d > FROM Orders I would like to look into the problem. However, I can't find obvious problems from the sql. It would be great that can provide a minimal example to reproduce the issue. Also, use print sink to avoid sinking into multi kafka partitions, since it will also bring out of order problem. Best, Hequn On Mon, Oct 1, 2018 at 9:11 PM clay4444 <clay4me...@gmail.com> wrote: > hi,Timo > > I use env.setParallelism(1) in my code, I set the overall degree of > parallelism of the program to 1, so that some calculations will still be > parallelized? > > clay, > > > > > -- > Sent from: > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/ >