| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 84 of 166 | 49% | 15 of 26 | 42% | 10 | 16 | 21 | 38 | 0 | 3 |
| visitPhysicalTopN(PhysicalTopN, CascadesContext) | | 37% | | 40% | 7 | 11 | 19 | 29 | 0 | 1 |
| isGroupKeyIdenticalToOrderKey(PhysicalTopN, PhysicalHashAggregate) | | 84% | | 50% | 3 | 4 | 2 | 8 | 0 | 1 |
| PushTopnToAgg() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |