LogicalPlan newLogicalPlan = Util.buildLp(pigServer, query);
Operator op = newLogicalPlan.getSinks().get(0);
LOFilter filter = (LOFilter)newLogicalPlan.getPredecessors(op).get(0);
PColFilterExtractor pColExtractor = new PColFilterExtractor(
filter.getFilterPlan(), partitionCols);
pColExtractor.visit();
Assert.assertFalse(pColExtractor.canPushDown());
Assert.assertNull(pColExtractor.getPColCondition());
}
private void negativeTest(String query, List<String> partitionCols,