Method actually_perform_transform

src/transform/src/will_distinct.rs:44–64

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

        fields(path.segment = "will_distinct")
    )]
    fn actually_perform_transform(
        &self,
        relation: &mut MirRelationExpr,
        ctx: &mut TransformCtx,
    ) -> Result<(), TransformError> {
        // Perform bottom-up equivalence class analysis.
        use crate::analysis::DerivedBuilder;
        let mut builder = DerivedBuilder::new(ctx.features);
        builder.require(NonNegative);
        let derived = builder.visit(relation);
        let derived = derived.as_view();

        self.apply(
            relation,
            derived,
            ctx.features.enable_will_distinct_propagation,
        );

        mz_repr::explain::trace_plan(&*relation);
        Ok(())
    }
}

impl WillDistinct {