Ordering groupOrder2 = new Ordering(1, StringValue.class, Order.DESCENDING);
groupOrder2.appendOrdering(4, DoubleValue.class, Order.ASCENDING);
coGroup.setGroupOrderForInputOne(groupOrder1);
coGroup.setGroupOrderForInputTwo(groupOrder2);
FileDataSink sink = new FileDataSink(new DummyOutputFormat(), OUT_FILE, coGroup, "Sink");
Plan plan = new Plan(sink, "Reduce Group Order Test");
plan.setDefaultParallelism(DEFAULT_PARALLELISM);
OptimizedPlan oPlan;