"store B into '111';";
LogicalPlan lp = Util.parseAndPreprocess(query, pc);
Util.optimizeNewLP(lp);
LOStore loStore = (LOStore)lp.getSinks().get(0);
LOForEach loForEach = (LOForEach)lp.getPredecessors(loStore).get(0);
LogicalSchema schema = loForEach.getSchema();
Assert.assertTrue(schema.size()==1);
LogicalFieldSchema bagFieldSchema = schema.getField(0);
Assert.assertTrue(bagFieldSchema.type==DataType.BAG);
LogicalFieldSchema tupleFieldSchema = bagFieldSchema.schema.getField(0);
Assert.assertTrue(tupleFieldSchema.schema==null);