Stream Aggregate
Short Description
The Stream Aggregate operator groups rows by one or more columns and then calculates one or more aggregate expressions
Detailed Description​
The Stream Aggregate operator groups rows by one or more columns and then calculates one or more aggregate expressions. This operator requires sorted data so is often preceded by a Sort operator.
Additional Links​
- Microsoft Documentation - Showplan Logical and Physical Operators Reference
- Microsoft Documentation - Explain Plans
- Plansplaining - Hugo Kornelis' Blog series
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