Method update_intervals

datafusion/physical-expr/src/intervals/cp_solver.rs:548–553

This function fetches ranges of expressions from the DAEG. The argument `assignments` associates indices of sought expressions with their ranges, which this function modifies to reflect the intervals in the DAEG.

(&self, assignments: &mut [(usize, Interval)])

    /// `assignments` associates indices of sought expressions with their ranges,
    /// which this function modifies to reflect the intervals in the DAEG.
    pub fn update_intervals(&self, assignments: &mut [(usize, Interval)]) {
        for (index, interval) in assignments.iter_mut() {
            let node_index = NodeIndex::from(*index as DefaultIx);
            *interval = self.graph[node_index].interval.clone();
        }
    }

    /// Computes bounds for an expression using interval arithmetic via a
    /// bottom-up traversal.