1. A method, comprising: initializing a token statistics data structure; updating the token statistics data structure with information related to a set of tokens associated with a set of queries processed during a sample period by a query processor; selecting a token to optimize based, at least in part, on information in the token statistics data structure, the token being selected based, at least in part, on one or more of, token query frequency, and token fragmentation; and providing a signal concerning the token.