Get HBase Row Keys in Range without Retrieving Data?

Is there a way to retrieve the row keys in a given range without actually retrieving the columns/CFs associated with that row key?

For clarification: In my example, our table's row keys are stock ticker names (e.g. GOOG), and in our web app we'd like to populate an autocomplete widget using just the row keys we have in the database. Obviously, if we retrieve all the data (instead of only the stock names) for all the stocks between G and H when a user types 'G', we'll be unnecessarily straining our system. Any ideas?