thinkharderdev commented on issue #24438:
URL: https://github.com/apache/datafusion/issues/24438#issuecomment-5483455904

   > All we need upstream is a property that can be propagated to AggregateExec 
to indicate this.
   
   Shouldn't this property already be inferrable from column statistics? If the 
`[min_key, max_key]` intervals are disjoint across input partitions, and we 
have `OrderingEquivalanceClass` with `[key ASC/DESC, date_bin(time) ASC/DESC]` 
then we should be able to stream the aggregation without additional machinery 
right?


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