Thanks a lot for your answer David! I'll check that out.
Elisabeth 2014-07-24 20:28 GMT+02:00 david.w.smi...@gmail.com < david.w.smi...@gmail.com>: > Hi Elisabeth, > > Sorry for not responding sooner; I forgot. > > You’re in need of some spatial nearest-neighbor code I wrote but it isn’t > open-sourced yet. It works on the RPT grid. > > Any way, you should consider doing this in two searches: the first query > tries the bbox provided, and if that returns nothing then issue a second > for the closest within the a 1000km distance. The first query is > straight-forward as documented. The second would be close to what you gave > in your example but sort by distance and return rows=1. It will *not* > compute the distance to every document, just those within the 1000km radius > plus some grid internal grid squares *if* you use spatial RPT > (“location_rpt” in the example schema). But use LatLonType for optimal > sorting performance, not RPT. > > With respect to doing this in one search vs two, that would involve writing > a custom request handler. I have a patch to make this easier: > https://issues.apache.org/jira/browse/SOLR-5005. If in your case there > are > absolutely no other filters and it’s not a distributed search (no > sharding), then you could approach this with a custom query parser that > generates and executes one query to know if it should return that query or > return the fallback. > > Please let me know how this goes. > > ~ David Smiley > Freelance Apache Lucene/Solr Search Consultant/Developer > http://www.linkedin.com/in/davidwsmiley > > > On Tue, Jul 22, 2014 at 3:12 AM, elisabeth benoit < > elisaelisael...@gmail.com > > wrote: > > > Hello, > > > > I am using solr 4.2.1. I have the following use case. > > > > I should find results inside bbox OR if there is none, first result > outside > > bbox within a 1000 km distance. I was wondering what is the best way to > > proceed. > > > > I was considering doing a geofilt search from the center of my bounding > box > > and post filtering results. > > > > fq={!geofilt sfield=store}&pt=45.15,-93.85&d=1000 > > > > From a performance point of view I don't think it's a good solution > though, > > since solr will have to calculate every document distance, then sort. > > > > I was wondering if there was another way to do this and avoid sending > more > > than one request to solr. > > > > Thanks, > > Elisabeth > > >
