fn visit_inequality()

in crates/iceberg/src/expr/visitors/page_index_evaluator.rs [387:422]

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

    fn visit_inequality(
        &mut self,
        reference: &BoundReference,
        datum: &Datum,
        cmp_fn: fn(&Datum, &Datum) -> bool,
        use_lower_bound: bool,
    ) -> Result<RowSelection> {
        let field_id = reference.field().id;

        self.calc_row_selection(
            field_id,
            |min, max, null_count| {
                if matches!(null_count, PageNullCount::AllNull) {
                    return Ok(false);
                }

                if datum.is_nan() {
                    // NaN indicates unreliable bounds.
                    return Ok(true);
                }

                let bound = if use_lower_bound { min } else { max };

                if let Some(bound) = bound {
                    if cmp_fn(&bound, datum) {
                        return Ok(true);
                    }

                    return Ok(false);
                }

                Ok(true)
            },
            MissingColBehavior::MightMatch,
        )
    }