HI Mark, Does this help? http://wiki.apache.org/lucene-java/BooleanQuerySyntax
Otis -- Sematext -- http://sematext.com/ -- Solr - Lucene - Nutch ----- Original Message ---- > From: markwaddle <m...@markwaddle.com> > To: solr-user@lucene.apache.org > Sent: Thu, January 14, 2010 3:38:34 PM > Subject: Re: Unexpected boolean query behavior > > > That is a reasonable question. The problem here is that my users have already > created numerous queries just like this one, using ANDs and ORs. My users > are very technical and they have been using the results of these queries for > months now to perform analysis that drives business decisions. I need an > explanation for why this is happening so I can not only train them on how to > use it more effectively, but also to restore their trust in the search > application. > > Does anyone understand this behavior? Or can you recommend a place for me to > look? > > > Otis Gospodnetic wrote: > > > > Mark, > > > > Does it help if you rewrite your query using +/- syntax ("required", > > "prohibited"), or nothing for "should"? Because that's what happens under > > the hood (terms are required, prohibited, or should occur). > > > > > > Otis > > -- > > Sematext -- http://sematext.com/ -- Solr - Lucene - Nutch > > > > > > > > ----- Original Message ---- > >> From: markwaddle > >> To: solr-user@lucene.apache.org > >> Sent: Thu, January 14, 2010 2:39:21 PM > >> Subject: Unexpected boolean query behavior > >> > >> > >> Here is my query: > >> (virt* AND "machine fingerprinting") OR (virt* AND encryption) OR (virt* > >> AND > >> anonymous) OR (virt* AND analytic*) AND owned:true > >> > >> It can be broken down to: > >> (A) OR (B) OR (C) OR (D) AND E > >> > >> A, B, C and D are themselves AND boolean clauses. > >> > >> The E clause at the end is not behaving the way I would expect. No matter > >> how I order the A,B,C and D clauses, it always returns the equivalent of > >> ((D) AND E). > >> > >> When I add additional parentheses it behaves the way I expect. Like: > >> ((A) OR (B) OR (C) OR (D)) AND E > >> or > >> (A) OR (B) OR (C) OR ((D) AND E) > >> > >> Can anyone explain why it behaves the way it does without the > >> parentheses? > >> Is there something I am missing in the way it processes boolean clauses? > >> > >> Thanks, > >> Mark > >> -- > >> View this message in context: > >> > http://old.nabble.com/Unexpected-boolean-query-behavior-tp27166967p27166967.html > >> Sent from the Solr - User mailing list archive at Nabble.com. > > > > > > > > -- > View this message in context: > http://old.nabble.com/Unexpected-boolean-query-behavior-tp27166967p27167750.html > Sent from the Solr - User mailing list archive at Nabble.com.
