| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 26 of 174 | 85% | 6 of 28 | 78% | 5 | 17 | 8 | 40 | 0 | 3 |
| visitPhysicalTopN(PhysicalTopN, CascadesContext) | | 80% | | 72% | 5 | 12 | 8 | 31 | 0 | 1 |
| isGroupKeyIdenticalToOrderKey(PhysicalTopN, PhysicalHashAggregate) | | 100% | | 100% | 0 | 4 | 0 | 8 | 0 | 1 |
| PushTopnToAgg() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |