Ok, we decided not to implement PositionLengthAttribute for now due to, it either is a bad applied (how could one even misapply that attribute?) or Solr's QueryBuilder has a weird way of dealing with it or.. well.
Thanks, Markus -----Original message----- > From:Markus Jelsma <markus.jel...@openindex.io> > Sent: Monday 1st May 2017 12:33 > To: java-u...@lucene.apache.org; solr-user <solr-user@lucene.apache.org> > Subject: RE: Term no longer matches if PositionLengthAttr is set to two > > Hello again, apologies for cross-posting and having to get back to this > unsolved problem. > > Initially i thought this is a problem i have with, or in Lucene. Maybe not, > so is this problem in Solr? Is here anyone who has seen this problem before? > > Many thanks, > Markus > > -----Original message----- > > From:Markus Jelsma <markus.jel...@openindex.io> > > Sent: Tuesday 25th April 2017 13:40 > > To: java-u...@lucene.apache.org > > Subject: Term no longer matches if PositionLengthAttr is set to two > > > > Hello, > > > > We have a decompounder and recently implemented the PositionLengthAttribute > > in it and set it to 2 for a two-word compound such as drinkwater (drinking > > water in dutch). The decompounder runs both at index- and query-time on > > Solr 6.5.0. > > > > The problem is, q=content_nl:drinkwater no longer returns documents > > containing drinkwater when posLenAtt = 2 at query time. > > > > This is Solr's debug output for drinkwater with posLenAtt = 2: > > > > <str name="rawquerystring">content_nl:drinkwater</str> > > <str name="querystring">content_nl:drinkwater</str> > > <str name="parsedquery">SynonymQuery(Synonym())</str> > > <str name="parsedquery_toString">Synonym()</str> > > > > This is the output where i reverted the decompounder, thus a posLenAtt = 1: > > > > <str name="rawquerystring">content_nl:drinkwater</str> > > <str name="querystring">content_nl:drinkwater</str> > > <str name="parsedquery">SynonymQuery(Synonym(content_nl:drink > > content_nl:drinkwater)) content_nl:water</str> > > <str name="parsedquery_toString">Synonym(content_nl:drink > > content_nl:drinkwater) content_nl:water</str> > > > > The indexed terms still have posLenAtt = 2, but having a posLenAtt = 2 at > > query time seems to be a problem. > > > > Any thoughts on this issue? Is it a bug? Do i not understand > > PositionLengthAttribute? Why does it affect term/document matching? At > > query time but not at index time? > > > > Many thanks, > > Markus > > > > --------------------------------------------------------------------- > > 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 > >
