| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 93 of 482 | 80% | 7 of 38 | 81% | 6 | 26 | 15 | 100 | 0 | 7 |
| computeTopN(PhysicalTopN, CascadesContext) | | 75% | | 76% | 5 | 14 | 13 | 70 | 0 | 1 |
| visitPhysicalTopN(PhysicalTopN, CascadesContext) | | 85% | | 100% | 0 | 2 | 2 | 7 | 0 | 1 |
| moveRowIdsToTail(List, Set) | | 100% | | 90% | 1 | 6 | 0 | 17 | 0 | 1 |
| computeMaterializeSource(PhysicalTopN, SlotReference) | | 100% | n/a | 0 | 1 | 0 | 3 | 0 | 1 | |
| LazyMaterializeTopN() | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| filterSlotsForLazyMaterialization(Map) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| lambda$computeTopN$0(Relation) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |