Apples and oranges here. Filter queries do NOT contribute to score. But they are cached so if you have a frequent use-case for filtering, you'll get much faster performance. OTOH, if your filter queries are never repeated, filter queries aren't helpful.
So if correctness isn't defined by the fq clause being included in the relevance score, you're *usually* better off using filter queries... Best Erick On Tue, Feb 21, 2012 at 1:25 PM, <dar...@ontrenet.com> wrote: > > Hi, > Which is faster for boolean compound expressions. filter queries or a > single query with boolean expressions? > For that matter, is there any difference other than maybe speed? > > thanks