public ThetaTPCH9Plan(String dataPath, String extension, Map conf) {
int Theta_JoinType = ThetaQueryPlansParameters.getThetaJoinType(conf);
//-------------------------------------------------------------------------------------
List<Integer> hashPart = Arrays.asList(0);
SelectOperator selectionPart = new SelectOperator(new LikePredicate(new ColumnReference(
_sc, 1), new ValueSpecification(_sc, COLOR)));
ProjectOperator projectionPart = new ProjectOperator(new int[] { 0 });
DataSourceComponent relationPart = new DataSourceComponent("PART", dataPath + "part"