Hi there, I wonder if it makes sense to give the option to disable auto repartitioning while doing groupBy.
I understand with https://issues.apache.org/jira/browse/KAFKA-3561, an internal topic for repartition will be automatically created and synced to brokers, which is useful when aggregation keys are not the ones used when ingesting raw data. However, in my case, I have carefully partitioned the data when ingesting my raw topics. If I do groupBy followed by aggregation, there will be TWO change logs topics, one for groupBy another or aggregation. Does it make sense to make the groupBy one configurable? Thanks Tianji
