fn are_all_null()

in crates/iceberg/src/expr/visitors/manifest_evaluator.rs [394:409]

• 14 lines of code
• 6 McCabe index (conditional complexity)

    fn are_all_null(field: &FieldSummary, r#type: &Type) -> bool {
        // contains_null encodes whether at least one partition value is null,
        // lowerBound is null if all partition values are null
        let mut all_null: bool = field.contains_null && field.lower_bound.is_none();

        if all_null && r#type.is_floating_type() {
            // floating point types may include NaN values, which we check separately.
            // In case bounds don't include NaN value, contains_nan needs to be checked against.
            all_null = match field.contains_nan {
                Some(val) => !val,
                None => false,
            }
        }

        all_null
    }