Term frequency applies only to the indexed terms of a tokenized field. DocValues is really just a copy of the original source text and is not tokenized into terms.
Maybe you could explain how exactly you are using term frequency in function queries. More importantly, what is so "heavy" about your usage? Generally, moderate use of a feature is much more advisable to heavy usage, unless you don't care about performance. -- Jack Krupansky On Fri, Oct 23, 2015 at 8:19 AM, Aki Balogh <a...@marketmuse.com> wrote: > Hello, > > In our solr application, we use a Function Query (termfreq) very heavily. > > Index time and disk space are not important, but we're looking to improve > performance on termfreq at query time. > I've been reading up on docValues. Would this be a way to improve > performance? > > I had read that Lucene uses Field Cache for Function Queries, so > performance may not be affected. > > > And, any general suggestions for improving query performance on Function > Queries? > > Thanks, > Aki >
