| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 15 of 133 | 88% | 4 of 20 | 80% | 4 | 13 | 4 | 31 | 0 | 3 |
| visitPhysicalTopN(PhysicalTopN, CascadesContext) | | 87% | | 80% | 4 | 11 | 4 | 29 | 0 | 1 |
| isGroupKeyIdenticalToOrderKey(PhysicalTopN, PhysicalHashAggregate) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| PushTopnToAgg() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |