}
public final static List<IAlgebraicRewriteRule> buildPhysicalRewritesAllLevelsRuleCollection() {
List<IAlgebraicRewriteRule> physicalPlanRewrites = new LinkedList<IAlgebraicRewriteRule>();
physicalPlanRewrites.add(new PullSelectOutOfEqJoin());
physicalPlanRewrites.add(new PushFunctionsOntoEqJoinBranches());
physicalPlanRewrites.add(new SetAlgebricksPhysicalOperatorsRule());
physicalPlanRewrites.add(new EnforceStructuralPropertiesRule());
physicalPlanRewrites.add(new PushProjectDownRule());
physicalPlanRewrites.add(new CopyLimitDownRule());
return physicalPlanRewrites;