| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 83 of 231 | 64% | 14 of 20 | 30% | 14 | 24 | 17 | 39 | 4 | 14 |
| checkLegalityBeforeTypeCoercion() | | 0% | | 0% | 5 | 5 | 11 | 11 | 1 | 1 |
| Lag(Expression) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| Lag(Expression, Expression) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| nullable() | | 88% | | 50% | 2 | 3 | 1 | 3 | 0 | 1 |
| getSignatures() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| withChildren(List) | | 94% | | 50% | 2 | 3 | 0 | 2 | 0 | 1 |
| getOffset() | | 92% | | 50% | 1 | 2 | 0 | 2 | 0 | 1 |
| getDefaultValue() | | 92% | | 50% | 1 | 2 | 0 | 2 | 0 | 1 |
| lambda$static$0(List, DataType) | | 100% | n/a | 0 | 1 | 0 | 4 | 0 | 1 | |
| Lag(Expression, Expression, Expression) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| static {...} | | 100% | n/a | 0 | 1 | 0 | 4 | 0 | 1 | |
| accept(ExpressionVisitor, Object) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| getDataType() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| Lag(WindowFunctionParams) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 |