Method actually_perform_transform

src/transform/src/demand.rs:85–97

(
        &self,
        relation: &mut MirRelationExpr,
        _: &mut TransformCtx,
    )

        fields(path.segment = "demand")
    )]
    fn actually_perform_transform(
        &self,
        relation: &mut MirRelationExpr,
        _: &mut TransformCtx,
    ) -> Result<(), crate::TransformError> {
        let result = self.action(
            relation,
            (0..relation.arity()).collect(),
            &mut BTreeMap::new(),
        );
        mz_repr::explain::trace_plan(&*relation);
        result
    }
}

impl Demand {