// System.err.println(String.format("[%02d] %s", column_guid,
// column));
// System.err.println("==================");
// System.err.println(PlannerContext.singleton().debug());
assertNotNull("Invalid PlanColumn [guid=" + column_guid + "]", column);
assertEquals(column_guid, column.guid());
} // FOR
// Now check to make sure there are no other Projections in the tree
Collection<ProjectionPlanNode> proj_nodes = PlanNodeUtil.getPlanNodes(root, ProjectionPlanNode.class);
assertEquals(0, proj_nodes.size());