| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 15 of 166 | 90% | 4 of 26 | 84% | 4 | 16 | 4 | 38 | 0 | 3 |
| visitPhysicalTopN(PhysicalTopN, CascadesContext) | | 87% | | 80% | 4 | 11 | 4 | 29 | 0 | 1 |
| isGroupKeyIdenticalToOrderKey(PhysicalTopN, PhysicalHashAggregate) | | 100% | | 100% | 0 | 4 | 0 | 8 | 0 | 1 |
| PushTopnToAgg() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |