Matches a logical aggregation that can be performed on distributed data in two steps. The first
operates on the data in each partition performing partial aggregation for each group. The second
occurs after the shuffle and completes the aggregation.
This pattern will only match if all aggregate expressions can be computed partially and will
return the rewritten aggregation expressions for both phases.
The returned values for this match are as follows:
Matches a logical aggregation that can be performed on distributed data in two steps. The first operates on the data in each partition performing partial aggregation for each group. The second occurs after the shuffle and completes the aggregation.
This pattern will only match if all aggregate expressions can be computed partially and will return the rewritten aggregation expressions for both phases.
The returned values for this match are as follows: