Re: How to round solr score ?

[Mamta Thakur <mt...@care.com>]

Hi ,

As per this post here http://grokbase.com/t/lucene/solr-user/131jzcg3q2/how-to-round-solr-score.
I was able to use my custom fn in sort(defType=func&q=socialDegree(id,1)&fl=score,*&sort=score%20asc) - works,
but can't facet on the same(defType=func&q=socialDegree(id,1)&fl=score,*&facet=true&facet.field=score) - doesn't work.

Exception:
org.apache.solr.common.SolrException: undefined field: "score"
at org.apache.solr.schema.IndexSchema.getField(IndexSchema.java:965)
at org.apache.solr.request.SimpleFacets.getTermCounts(SimpleFacets.java:294)
at org.apache.solr.request.SimpleFacets.getFacetFieldCounts(SimpleFacets.java:423)
at org.apache.solr.request.SimpleFacets.getFacetCounts(SimpleFacets.java:205)
at org.apache.solr.handler.component.FacetComponent.process(FacetComponent.java:78)
at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:208)
at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:1816)
at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:448)
at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:269)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:560)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)

Is there any way by which we can achieve this?

Thanks,
Mamta.




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Re: How to round solr score ?

[Chris Hostetter <ho...@fucit.org>]

: 'score' is a pseudo-field, i.e., it does not actually exist in
: the index, which is probably why it cannot be faceted on.
: Faceting on a rounded score seems like an unusual use
: case. What requirement are you trying to address?

agreed, more details would be helpful.

FWIW: the only way available to facet on functions is to use facet.query 
along with the {!frange} paser to create facet constraints based on ranges 
of function values that you specify.

there is no othe way i can think of to facet over function values -- there 
is an open issue where people were discussing it, but i don't think there 
wa ever a functional patch...

https://issues.apache.org/jira/browse/SOLR-1581






-Hoss

Re: How to round solr score ?

[Gora Mohanty <go...@mimirtech.com>]

On 17 September 2013 18:31, Mamta Thakur <mt...@care.com> wrote:

> Hi ,
>
> As per this post here
> http://grokbase.com/t/lucene/solr-user/131jzcg3q2/how-to-round-solr-score.
> I was able to use my custom fn in
> sort(defType=func&q=socialDegree(id,1)&fl=score,*&sort=score%20asc) - works,
> but can't facet on the
> same(defType=func&q=socialDegree(id,1)&fl=score,*&facet=true&facet.field=score)
> - doesn't work.
>

'score' is a pseudo-field, i.e., it does not actually exist in
the index, which is probably why it cannot be faceted on.
Faceting on a rounded score seems like an unusual use
case. What requirement are you trying to address?

Regards,
Gora