I am looking for a way of specifying a list of query parameters that I want to ignore for caching.Can I use the directive CacheIgnoreURLSessionIdentifiers to ignore select query parameters regardless of whether they are used for session identifiers?This causes cachable resources to be stored separately for each  session, which is often not desired. CacheIgnoreURLSessionIdentifiers  lets define a list of identifiers that are removed from the key that  is used to identify an entity in the cache, such that cachable  resources are not stored separately for each session.
Apache CacheIgnoreURLSessionIdentifiers to ignore select query string params
apache2;cache;httpd