Package se.liu.ida.hefquin.engine.queryproc

Interface PhysicalOptimizer

All Known Implementing Classes:

EvolutionaryAlgorithmQueryOptimizer, IterativeImprovementBasedQueryOptimizer, PhysicalOptimizerBase, PhysicalOptimizerWithoutOptimization, RandomizedQueryOptimizerBase, SimpleJoinOrderingQueryOptimizer, SimulatedAnnealing, TwoPhaseQueryOptimizer

public interface PhysicalOptimizer

Method Summary

Modifier and Type	Method	Description
boolean	assumesLogicalMultiwayJoins()
Pair<PhysicalPlan,PhysicalOptimizationStats>	optimize(LogicalPlan initialPlan)

Method Details

assumesLogicalMultiwayJoins

boolean assumesLogicalMultiwayJoins()

optimize

Pair<PhysicalPlan,PhysicalOptimizationStats> optimize(LogicalPlan initialPlan)
                                               throws PhysicalOptimizationException

Throws:

PhysicalOptimizationException