The optimizer uses a sophisticated cost-benefit model to consider placing TQ operators directly above some of the SHIP operators found in federated execution plans.

With cost-benefit model, game theory and empirical studies, the IPE studies of interdependence have made great progress, but still left weak point, which mainly caused by the state-centrism paradigm.

This model from a cost/benefit perspective to the dealership would be $400 - (2.5% * $3) - (8.7% * 400) = $365.