Thanks Erik... Can we enable highlighting for facet results as well ? I am using Solr's faceting feature to get a unique set of results for the field with counts, so unless highlighting works for facet results, it will not really be useful.
karthik c http://cantspellathing.blogspot.com On Mon, Mar 16, 2009 at 9:18 PM, Erik Hatcher <e...@ehatchersolutions.com>wrote: > Perhaps the Highlighting feature will help? You could use that to see > which docs have something highlighted for the field in question. > > Erik > > > On Mar 16, 2009, at 10:12 AM, karthik c wrote: > > Thanks Otis... What kind of post-processing are u talking about here ? Is >> there any mechanism in Solr to identify which of the facet results match >> the >> query ? >> >> karthik c >> http://cantspellathing.blogspot.com >> >> >> On Mon, Mar 16, 2009 at 6:57 PM, Otis Gospodnetic < >> otis_gospodne...@yahoo.com> wrote: >> >> >>> If your searches are simplistic and Shalin's suggestion is not an option >>> for you for some reason, perhaps even something as simple as >>> post-processing/filtering of returned facets will work. >>> >>> Otis >>> -- >>> Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch >>> >>> >>> >>> ----- Original Message ---- >>> >>>> From: karthik c <karthik...@gmail.com> >>>> To: solr-user@lucene.apache.org >>>> Sent: Monday, March 16, 2009 2:41:02 AM >>>> Subject: search on field to get distinct values with counts.... >>>> >>>> Hi, >>>> >>>> We have a requirement to fetch a set of distinct values of a given field >>>> that match the given query. We also need to fetch the number of items >>>> associated with each field value. I figured out a way to do this for >>>> single-valued fields but am not able to get it to work for multi-valued >>>> fields. >>>> >>>> Long Story: >>>> Say you have an index of movies, I would like to get a unique set of >>>> directors matching a query (say "john") and also the number of movies >>>> directed by each of them. For this example lets assume that "director" >>>> is >>>> >>> a >>> >>>> single valued field. >>>> >>>> I came up with one approach to implement this: Search for the query >>>> >>> string >>> >>>> in the director field and then apply faceting on the same field >>>> >>> (director). >>> >>>> The search will limit the movie results to the ones directed by >>>> directors >>>> matching the query. Further, the faceting will provide a unique set of >>>> directors and also the count of movies associated with them. The query >>>> >>> will >>> >>>> look something like this: >>>> >>>> solr/Movie/select/?q=director:(john)&start=0&rows=0&facet=true&facet.field=raw_director >>> >>>> >>>> This query works fine for single-valued fields. However it does not work >>>> >>> in >>> >>>> the case of multi-valued fields, say we perform a similar search on the >>>> "actors" (mutli-valued) field, the query will look like: >>>> >>>> solr/Movie/select/?q=actors:(john)&start=0&rows=0&facet=true&facet.field=raw_actors >>> >>>> In this case, the search will again limit the movie results to the ones >>>> >>> in >>> >>>> which actors matching the query have acted in. However while faceting >>>> the >>>> results on "actors", the facet results will also contain other actors >>>> >>> that >>> >>>> have acted in the resulting movies. For eg: say we are searching for >>>> actors:malkovich, this will return all movies in which John Malkovich >>>> has >>>> acted in. When the faceting is applied on these results, the facet >>>> >>> results >>> >>>> contain John Malkovich with the correct number of movies. But, the facet >>>> results also contain other actors who have acted with John Malkovich. >>>> The >>>> facet results for the above query look something like this: >>>> >>>> >>>> 49 >>>> 4 >>>> 3 >>>> 2 >>>> 2 >>>> 2 >>>> 2 >>>> 2 >>>> >>>> >>>> The other actors in the above results is obviously not what we expect to >>>> see, since they do match the original query (i.e. malkovich). >>>> >>>> Is there any other way I can approach this for multi-valued fields ? >>>> >>>> Thanks, >>>> karthik c >>>> http://cantspellathing.blogspot.com >>>> >>> >>> >>> >
