| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 4 of 81 | 95% | 2 of 12 | 83% | 2 | 9 | 2 | 20 | 0 | 3 |
| checkTopN(TopN) | | 89% | | 80% | 2 | 6 | 2 | 11 | 0 | 1 |
| visitPhysicalTopN(PhysicalTopN, CascadesContext) | | 100% | | 100% | 0 | 2 | 0 | 8 | 0 | 1 |
| TopNScanOpt() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |