Fetching Dynamic Fields

[Manepalli, Kalyan]

Hi all,
            Is there a way to select all the dynamic fields in the fl field 
without using *. Here is what I am looking for.
Fields in the schema, locationName_*, locationId,description,content.
I want to select just the locationName_* and locationId. How can I do this 
without using fl=*, coz I don't want to fetch all the other fields.

Any suggestions in this regard will be helpful.

Thanks,
Kalyan Manepalli