Filters are a way of restricting the search space to a subset of documents. They basically work out to be a bitset indicating whether a given document is allowed to appear in the results or not. They do not affect scoring. You can obtain similar results through ANDing a query too, but then it likely affects scoring. Also, you should only really use filters if you intend to cache it and reuse it.
-Grant On Dec 8, 2010, at 3:09 AM, Romi wrote: > > I am working with Lucene.My work is to Query nd perform search on it. I want > to know the use of Filters. > > ----- > Romi > -- > View this message in context: > http://lucene.472066.n3.nabble.com/Why-do-we-use-Filters-tp2039246p2039246.html > Sent from the Lucene - General mailing list archive at Nabble.com. -------------------------- Grant Ingersoll http://www.lucidimagination.com/
