Nice, I didn't know about q.alt. Or, alternately, yes, you could use a nested
query, good call. Which, yes, I agree is kind of confusing at first.
&qt=dismax # use dismax for the overall query
&bq=whatever # so we can use bq, since we're using dismax
&q=_query_:"{!lucene} solr-lucene syntax query" # but now make our entire 'q' a
nested query, which is set to use lucene query parser.
What gets really confusing there is that the nested query expression needs to
be in quotes -- so if you need quotes within the actual query itself (say for a
phrase), you need to escape them. And the whole thing needs to be URI-encoded,
of course. It does get confusing, but is quite powerful.
Jonathan
________________________________________
From: Chantal Ackermann [chantal.ackerm...@btelligent.de]
Sent: Thursday, September 16, 2010 4:10 AM
To: solr-user@lucene.apache.org
Subject: Re: Boosting specific field value
Hi Ravi,
with dismax, use the parameter "q.alt" which expects standard lucene
syntax (instead of "q"). If "q.alt" is present in the query, "q" is not
required. Add the parameter "qt=dismax".
Chantal
On Thu, 2010-09-16 at 06:22 +0200, Ravi Kiran wrote:
> Hello Mr.Rochkind,
> I am using StandardRequestHandler so I presume I
> cannot use bq param right ?? Is there a way we can mix dismax and
> standardhandler i.e use lucene syntax for query and use dismax style for bq
> using localparams/nested queries? I remember seeing your post related to
> localparams and nested queries and got thoroughly confused
>
> On Wed, Sep 15, 2010 at 10:28 PM, Jonathan Rochkind <rochk...@jhu.edu>wrote:
>
> > Maybe you are looking for the 'bq' (boost query) parameter in dismax?
> >
> > http://wiki.apache.org/solr/DisMaxQParserPlugin#bq_.28Boost_Query.29
> > ________________________________________
> > From: Ravi Kiran [ravi.bhas...@gmail.com]
> > Sent: Wednesday, September 15, 2010 10:02 PM
> > To: solr-user@lucene.apache.org
> > Subject: Re: Boosting specific field value
> >
> > Erick,
> > I afraid you misinterpreted my issue....if I query like you said
> > i.e q=source(bbc OR "associated press")^10 I will ONLY get documents with
> > source BBC or Associated Press...what I am asking is - if my query query
> > does not deal with source at all but uses some other field...since the
> > field
> > "source" will be in the result , is there a way to still boost such a
> > document
> >
> > To re-iterate, If my query is as follows
> >
> > q=primarysection:(Politics* OR Nation*)&fq=contenttype:("Blog" OR "Photo
> > Gallery") pubdatetime:[NOW-3MONTHS TO NOW]
> >
> > and say the resulting docs have "source" field, is there any way I can
> > boost
> > the resulting doc/docs that have either BBC/Associated Press as the value
> > in
> > source field to be on top
> >
> > Can a filter query (fq) have a boost ? if yes, then probably I could
> > rewrite
> > the query as follows in a round about way
> >
> > q=primarysection:(Politics* OR Nation*)&fq=contenttype:("Blog" OR "Photo
> > Gallery) pubdatetime:[NOW-3MONTHS TO NOW] (source:("BBC" OR "Associated
> > Press")^10 OR -source:("BBC" OR "Associated Press")^5)
> >
> > Theoretically, I have to write source in the fq 2 times as I need docs that
> > have source values too just that they will have a lower boost
> >
> > Thanks,
> >
> > Ravi Kiran Bhaskar
> >
> > On Wed, Sep 15, 2010 at 1:34 PM, Erick Erickson <erickerick...@gmail.com
> > >wrote:
> >
> > > This seems like a simple query-time boost, although I may not be
> > > understanding
> > > your problem well. That is, q=source(bbc OR "associated press")^10
> > >
> > > As for boosting more recent documents, see:
> > >
> > >
> > http://wiki.apache.org/solr/SolrRelevancyFAQ#How_can_I_boost_the_score_of_newer_documents
> > >
> > > HTH
> > > Erick
> > >
> > >
> > > On Wed, Sep 15, 2010 at 12:44 PM, Ravi Kiran <ravi.bhas...@gmail.com>
> > > wrote:
> > >
> > > > Hello,
> > > > I am currently querying solr for a "*primarysection*" which will
> > > > return documents like - *q=primarysection:(Politics* OR
> > > > Nation*)&fq=contenttype:("Blog" OR "Photo Gallery)
> > > pubdatetime:[NOW-3MONTHS
> > > > TO NOW]"*. Each document has several fields of which I am most
> > interested
> > > > in
> > > > single valued field called "*source*" ...I want to boost documents
> > which
> > > > contain "*source*" value say "Associated Press" OR "BBC" and also by
> > > newer
> > > > documents. The returned documents may have several other source values
> > > > other
> > > > than "BBC" or "Associated Press". since I specifically don't query on
> > > these
> > > > source values I am not sure how I can boost them, Iam using *
> > > > StandardRequestHandler*
> > > >
> > >
> >
