Re: What's the root cause of not supporting multiple aggregations in structured streaming?

2019-05-21 Thread
pdate" mode its going to be much harder to support this without > first adding support for "retractions", otherwise we would end up with > wrong results. > > - Arun > > > On Mon, 20 May 2019 at 01:34, Gabor Somogyi > wrote: > >> There is PR for this

What's the root cause of not supporting multiple aggregations in structured streaming?

2019-05-20 Thread
Hi there, I'd like to know what's the root reason why multiple aggregations on streaming dataframe is not allowed since it's a very useful feature, and flink has supported it for a long time. Thanks.