Please allow support for renaming of a column from an API call to a map/feature server. this would allos a more SQL like experience and make the attributes ready to be passed into another API that may have specific name requirements.
for example
the route service needs a feature to return two Fields (name, Routename) which works well if that is how your service is arranged, but it would be helpful to enable a syntax like the below
/query?where=1%3D1&outFields=Name,path as RouteName&f=json