- **Description**: Projects sets of rows from functions. - **Performance**: Depends on complexity of set-returning functions. - **Factors**: Function complexity, number of rows. - **Cost**: `function cost + cpu_tuple_cost * number of rows` - ![[assets/ex_projectset.png|200x200]] - **Operates on**: [[Structures/Result Set]] - **Workloads**: - [[Workloads/LWLock]] - [[Workloads/Sub/BufferContent]]