| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 31 of 226 | 86% | 12 of 38 | 68% | 14 | 29 | 7 | 40 | 2 | 10 |
| resultForEmptyInput() | | 0% | n/a | 1 | 1 | 3 | 3 | 1 | 1 | |
| TopKCountFunction(AggregateFunctionParams) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| normalizeValueType(DataType) | | 62% | | 50% | 1 | 2 | 1 | 3 | 0 | 1 |
| checkLegalityAfterRewrite() | | 97% | | 80% | 2 | 6 | 1 | 11 | 0 | 1 |
| checkLegalityBeforeTypeCoercion() | | 100% | | 100% | 0 | 4 | 0 | 9 | 0 | 1 |
| isSupportedValueType(DataType) | | 100% | | 55% | 9 | 11 | 0 | 5 | 0 | 1 |
| resultType(DataType) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| customSignature() | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| pairType(DataType) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| TopKCountFunction(String, boolean, List) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 |