Method is_sorted

datafusion/datasource/src/statistics.rs:270–275

Check if the min/max statistics are in order and non-overlapping (or touching at boundaries)

(&self)

    /// Check if the min/max statistics are in order and non-overlapping
    /// (or touching at boundaries)
    pub fn is_sorted(&self) -> bool {
        self.max_by_sort_order
            .iter()
            .zip(self.min_by_sort_order.iter().skip(1))
            .all(|(max, next_min)| max <= next_min)
    }
}

fn sort_columns_from_physical_sort_exprs(