| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 17 of 191 | 91% | 11 of 36 | 69% | 13 | 28 | 5 | 37 | 2 | 10 |
| resultForEmptyInput() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| TopKFunction(AggregateFunctionParams) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| normalizeValueType(DataType) | | 62% | | 50% | 1 | 2 | 1 | 3 | 0 | 1 |
| checkLegalityAfterRewrite() | | 97% | | 75% | 2 | 5 | 1 | 11 | 0 | 1 |
| checkLegalityBeforeTypeCoercion() | | 100% | | 100% | 0 | 4 | 0 | 9 | 0 | 1 |
| isSupportedValueType(DataType) | | 100% | | 60% | 8 | 11 | 0 | 5 | 0 | 1 |
| customSignature() | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| pairType(DataType) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| TopKFunction(String, boolean, List) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| resultType(DataType) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |