| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 4 of 138 | 97% | 2 of 22 | 90% | 2 | 15 | 2 | 32 | 0 | 4 |
| checkTopN(TopN) | | 92% | | 88% | 2 | 10 | 2 | 15 | 0 | 1 |
| visitPhysicalTopN(PhysicalTopN, CascadesContext) | | 100% | | 100% | 0 | 2 | 0 | 8 | 0 | 1 |
| visitPhysicalDeferMaterializeTopN(PhysicalDeferMaterializeTopN, CascadesContext) | | 100% | | 100% | 0 | 2 | 0 | 8 | 0 | 1 |
| TopNScanOpt() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |