thanks. very interesting. The plot thickens. And, yes, I think field collapsing is exactly what I'm after.
I'm am considering now trying this patch. I have a solr 1.2 instance on Jetty. I looks like I need to install the patch. Does anyone use that patch? Recommend it? The wiki page (http://wiki.apache.org/solr/FieldCollapsing) says "This patch is not complete, but it will be useful to keep this page updated while the interface evolves." And the page was last updated over a year ago, so I'm not sure if that is a good. I'm trying to read through all the comments now. ..... I'm also considering creating a second index of just the categories which contains all the content from the main index collapsed down in to the corresponding categories - basically a complete collapsed index. Initial searches will be done against this collapsed category index, and then the first 10 results will be used to do 10 field queries against the main index to get the "top" records to return with each Category. Haven't decided which path to take yet. cheers gene On Wed, Sep 17, 2008 at 9:42 AM, Chris Hostetter <[EMAIL PROTECTED]> wrote: > > : 1. Identify all records that would match search terms. (Suppose I > : search for 'dog', and get 450,000 matches) > : 2. Of those records, find the distinct list of groups over all the > : matches. (Suppose there are 300.) > : 3. Now get the top ranked record from each group, as if you search > : just for docs in the group. > > this sounds similar to "Field Collapsing" although i don't really > understand it or your specific use case enough to be certain that it's the > same thing. You may find the patch, and/or the discussions about the > patch useful starting points... > > https://issues.apache.org/jira/browse/SOLR-236 > http://wiki.apache.org/solr/FieldCollapsing > > > -Hoss > >
