@Test public void testMultiQueryWithThreeStores2() throws Exception {
  System.out.println("===== multi-query with 3 stores (2) =====");
  myPig.setBatchOn();
  myPig.registerQuery("a = load 'passwd' " + "using PigStorage(':') as (uname:chararray, passwd:chararray, uid:int,gid:int);");
  myPig.registerQuery("b = filter a by uid > 5;");
  myPig.registerQuery("store b into 'output1';");
  myPig.registerQuery("c = filter b by uid > 10;");
  myPig.registerQuery("store c into 'output2';");
  myPig.registerQuery("d = filter c by uid > 15;");
  myPig.registerQuery("store d into 'output3';");
  myPig.executeBatch();
  myPig.discardBatch();
}