: Yes, they should be the same unless the field is indexed with shingles, in that case order matters. : Markus
just to clarify... The examples provided show *stirngs* which would have to be parsed into Query objects by a query parser. the *default* QueryParser will produce queries that result in the answers to your questions being "yes" But it is fairly trivially to tweak/extend the query parser to produce diff behavior. Examples... you could use SpanNearQuery with order enforced to make the two queries in #1 match completey diff documents. You could force the use of PhraseQuery or SpanNearQuery in all queries, such that the answer to #3 is "no", each pair of queries (with terms in same order) would match the same set of docs. Conversly, you could make those queries allways use BooleanQuery with SHOULD clauses so all 4 queries would match the same (much larger) set of docs. ...It's entirely up to the query parsing code to decide what types of queries to produce from those inputs. : : -----Original message----- : > From:Julius Kravjar <julius.krav...@gmail.com> : > Sent: Monday 16th January 2017 18:20 : > To: java-user@lucene.apache.org : > Subject: question : > : > May I have one question? One company - we used their sw - talked to us that : > in Lucene it is normal that the search results for : > : > 1. : > "sas institute" : > "institute sas" : > are the same. : > : > 2. : > sas institute : > institute sas : > are the same : > : > 3. : > the number of searches of "sas institute" is smaller then sas institute : > (analogically "institute sas" is smaller then institute sas : > : > : > : > Should we believe them? Manythanks in advance. : > : > Best regards : > : > J. Kravjar : > : : --------------------------------------------------------------------- : To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org : For additional commands, e-mail: java-user-h...@lucene.apache.org : : -Hoss http://www.lucidworks.com/ --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
