alamb commented on issue #298: URL: https://github.com/apache/arrow-datafusion/issues/298#issuecomment-840466714
> I think a new operator might be the best to do here. They have very different semantics and needs. I agree that a new operator (along with a new kind of aggregate) is probably best here -- the way window aggregate functions are applied is different than "normal" aggregates -- among other things for a window function there is typically one row of output for each row of input whereas normal aggregates produce one row of output for each distinct value of grouping keys. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
