Hi, the TermInSetQuery is a so-called Constant Score Query. It is more meant as a filter, so you would need some "real" fulltext query in parallel. See the term-in-set query more like the SQL "IN" operator. It can be used to pass lots of identifiers to filter results (e.g. when you apply access rights or group policies for filtering users to your main query as a filter).
As it is a "set", which is by default unordered, the order of terms in the set is undefined. Internally TermInSetQuery reorders the terms to improve processing speed. If you need scoring, use TermQuery wrapped by a BooleanQuery. Then you can apply some boosts to some terms to improve order (e.g. boost term queries coming first) and apply on a field without norms. TermInSetQuery is fast because it neglects scoring and is just good at intersecting the terms dict with the given terms set. Uwe ----- Uwe Schindler Achterdiek 19, D-28357 Bremen http://www.thetaphi.de eMail: u...@thetaphi.de > -----Original Message----- > From: Nicola Buso <nb...@ebi.ac.uk> > Sent: Monday, June 25, 2018 1:23 PM > To: java-user@lucene.apache.org > Subject: TermInSetQuery keep terms order in results > > Hi, > > I need to use the TermInSetQuery, but I would like to keep the sorting > of the results based on the term set order provided. Currently seems > using a index documents insertion order in the results. > > Is this already implemented somewhere or do I need to implement a > CustomScoreQuery to calculate this score? > > Cheers, > > > Nicola > > > -- > Nicola Buso <nb...@ebi.ac.uk> > EMBL-EBI > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
