new_exp.setColumnIndex(i);
new_exp.setColumnAlias(orig_pc.getDisplayName());
new_exp.setValueType(VoltType.STRING);
PlanColumn new_col = state.plannerContext.getPlanColumn(new_exp, orig_pc.getDisplayName(), orig_pc.getSortOrder(), orig_pc.getStorage());
assert (new_col != null);
node.getOutputColumnGUIDs().set(i, new_col.guid());
} else {
// Always try make a new PlanColumn and update the
// TupleValueExpresion index
// This ensures that we always get the ordering correct
TupleValueExpression orig_exp = (TupleValueExpression) orig_pc.getExpression();