| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 17 of 141 | 87% | 4 of 22 | 81% | 4 | 14 | 5 | 33 | 0 | 3 |
| visitPhysicalTopN(PhysicalTopN, CascadesContext) | | 87% | | 81% | 4 | 12 | 5 | 31 | 0 | 1 |
| isGroupKeyIdenticalToOrderKey(PhysicalTopN, PhysicalHashAggregate) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| PushTopnToAgg() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |