| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 31 of 87 | 64% | 2 of 4 | 50% | 4 | 11 | 4 | 17 | 2 | 9 |
| checkLegalityBeforeTypeCoercion() | | 34% | | 50% | 1 | 2 | 1 | 4 | 0 | 1 |
| QuantileUnion(boolean, Expression) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| resultForEmptyInput() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| withDistinctAndChildren(boolean, List) | | 93% | | 50% | 1 | 2 | 0 | 2 | 0 | 1 |
| static {...} | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| QuantileUnion(Expression) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| accept(ExpressionVisitor, Object) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| QuantileUnion(AggregateFunctionParams) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| getSignatures() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |