@Override
public String visitInputReference(InputReference node, Boolean unmangleNames) {
// add colon so this won't parse
return ":input(" + node.getChannel() + ")";
}
@Override
public Type visitInputReference(InputReference node, AnalysisContext context) {
Type type = tupleDescriptor.getFieldByIndex(node.getChannel()).getType();
expressionTypes.put(node, type);
return type;
}