I would recommend reading up on Lucene scoring, there's a lot to
understand there.
The join query parser (triggered by the use of {!join} syntax) searches
for a list of documents matching the term specified, and provides a list
of matching IDs. It then performs a second search based upon those IDs.
It is that second search that will be scored, but given you are just
using IDs, there's no scoring to be done.
Given that your joining term 'jeans' will exist in documents on both
sides of the join, you could say:
http://localhost:8983/solr/ee/select?fq={!join%20from=oxparentid%20to=oxid}jeans&q=jeans
That would cause the term 'jeans' to be scored (the more common the term
in a document, the higher it scores, etc).
But by the sounds of it, it would be useful for you to understand better
how scoring calculations are done, so you can see *why* a score would be
the way it is.
Upayavira
On Fri, Mar 8, 2013, at 07:56 AM, Stefan Moises wrote:
> Hi Erick,
>
> if I try the same query without join I get different scores for each
> hit... here is an example query:
>
> http://localhost:8983/solr/ee/select?facet=true&facet.mincount=1&facet.limit=-1&rows=10&fl=oxid,score,oxtitle&debugQuery=true&start=0&facet.sort=lex&facet.field=oxprice&facet.field=manuseo&facet.field=vendseo&facet.field=catpaths&fac
>
> et.field=catpathstok&facet.field=att_EU-Groesse&facet.field=att_Schnitt&facet.field=att_Groesse&facet.field=att_Farbe&facet.field=att_Einsatzbereich&facet.field=att_Material&facet.field=att_Modell&facet.field=att_Anzeige&facet.field=att_Design&facet.field=att_Lieferumfang&facet.field=att_Washing&facet.field=att_Beschaffenheit&qt=dismax&q={!join%20from=oxparentid%20to=oxid}jeans
>
> Anything wrong with that?
> Every doc returned has a score of 1.0 with the join.
> Without join I get scores between 0.40337953 and 0.40530312.
>
> Thanks,
> Stefan
>
> Am 08.03.2013 03:21, schrieb Erick Erickson:
> > What's the rest of your query? What you've indicated doesn't have any terms
> > to score. Join can be thought of as a bit like a filter query in this
> > sense; the fact that the join hit is just an inclusion/exclusion clause,
> > not a scoring.
> >
> > Best
> > Erick
> >
> >
> > On Thu, Mar 7, 2013 at 10:32 AM, Stefan Moises <moi...@shoptimax.de> wrote:
> >
> >> Hi List,
> >>
> >> we are using the JoinQuery (JoinQParserPlugin) via request parameter, e.g.
> >> "{!join from=parentid to=productsid}" in Solr 4.1 which works great for our
> >> purposes, but unfortunately, all docs returned get a score of "1.0"... this
> >> makes the whole search pretty useless imho, since the results are sorted
> >> totally random of course ....
> >> Is there any simple way to fix this or an explanation why this is the case?
> >>
> >> Thanks a lot in advance,
> >> Stefan
> >>
> >>
> >>
> >>
>
> --
> Mit den besten Grüßen aus Nürnberg,
> Stefan Moises
>
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