| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 34 of 174 | 80% | 12 of 28 | 57% | 10 | 17 | 11 | 40 | 0 | 3 |
| visitPhysicalTopN(PhysicalTopN, CascadesContext) | | 77% | | 54% | 8 | 12 | 9 | 31 | 0 | 1 |
| isGroupKeyIdenticalToOrderKey(PhysicalTopN, PhysicalHashAggregate) | | 89% | | 66% | 2 | 4 | 2 | 8 | 0 | 1 |
| PushTopnToAgg() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |