Method reverse

datafusion/physical-expr-common/src/sort_expr.rs:101–105

Reverses the sort expression. For instance, `[a ASC NULLS LAST]` turns into `[a DESC NULLS FIRST]`. Such reversals are useful in planning, e.g. when constructing equivalent window expressions.

(&self)

    /// into `[a DESC NULLS FIRST]`. Such reversals are useful in planning, e.g.
    /// when constructing equivalent window expressions.
    pub fn reverse(&self) -> Self {
        let mut result = self.clone();
        result.options = !result.options;
        result
    }

    /// Set the sort sort options to ASC
    pub fn asc(mut self) -> Self {