I am using ParallelMultiSearcher and querying more than 50 shards. I get wrong results for query A NOT B. I am getting correct results if i query A -B. I am also getting correct results for wildcard and fuzzy.
What is the solution? I need to use IndexSearcher with MultiReader? Regards Ganesh ----- Original Message ----- From: "Robert Muir" <rcm...@gmail.com> To: <java-user@lucene.apache.org> Sent: Saturday, November 27, 2010 1:28 AM Subject: Re: best practice: 1.4 billions documents > On Fri, Nov 26, 2010 at 12:49 PM, Uwe Schindler <u...@thetaphi.de> wrote: >> This is the problem for Fuzzy: each searcher expands the fuzzy query to a >> different Boolean Query and so the scores are not comparable - MultiSearcher >> (but not Solr) tries to combine the resulting rewritten queries into one >> query, so every searcher has the same query. > > The problem is not actually any issue with FuzzyQuery, it is the > Query.combine() with any Boolean rewrite... including AUTO as i > mentioned earlier in this thread! > > AUTO starts out building a boolean rewrite... if certain magical > conditions are hit (exceeds certain number of terms, or certain DF), > then it switches over to a Filter. > > So, for example AUTO proclaims it will never hit boolean maxclauses > exceeded exception, but it can (imagine multisearcher with 5 > searchers, it expands to 250 each, but then after combine() this is > > 1024). > > In my opinion Query.combine() is completely broken, and i don't see > how it can really be fixed to work with arbitrary query structures > since a query might rewrite() differently on the different searchers. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > Send free SMS to your Friends on Mobile from your Yahoo! Messenger. Download Now! http://messenger.yahoo.com/download.php --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
