Yes, with SolrCloud, it's just the collection param (as long as the schemas are compatible for this):
http://wiki.apache.org/solr/SolrCloud#Distributed_Requests - Mark On Mar 14, 2013, at 2:55 PM, kfdroid <kfdr...@gmail.com> wrote: > I've been looking all over for a clear answer to this question and can't seem > to find one. It seems like a very basic concept to me though so maybe I'm > using the wrong terminology. I want to be able to search across multiple > collections (as it is now called in SolrCloud world, previously called > Cores). I want the scoring, sorting, faceting etc. to be blended, that is > to be relevant to data from all the collections, not just a set of > independent results per collection. Is that possible? > > A real-world example would be a merchandise site that has books, movies and > music. The index for each of those is quite different and they would have > their own schema.xml (and therefore be their own Collection). When in the > 'books' area of a website the users could search on fields specific to books > (ISBN for example). However on a 'home' page a search would span across all > 3 product lines, and the results should be scored relative to each other, > not just relative to other items in their specific collection. > > Is this possible in v4.0? I'm pretty sure it wasn't in v1.4.1. But it seems > to be a fundamentally useful concept, I was wondering if it had been > addressed yet. > Thanks, > Ken > > > > -- > View this message in context: > http://lucene.472066.n3.nabble.com/Searching-across-multiple-collections-cores-tp4047457.html > Sent from the Solr - User mailing list archive at Nabble.com.