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Posted to solr-commits@lucene.apache.org by Apache Wiki <wi...@apache.org> on 2011/07/30 17:42:02 UTC
[Solr Wiki] Update of "SpatialSearch" by YonikSeeley
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The "SpatialSearch" page has been changed by YonikSeeley:
http://wiki.apache.org/solr/SpatialSearch?action=diff&rev1=65&rev2=66
Comment:
pseudofield to return distance
. [[http://localhost:8983/solr/select?wt=json&indent=true&fl=name,store&q=*:*&fq={!geofilt}&sfield=store&pt=45.15,-93.85&d=50&sort=geodist()%20asc|...&q=*:*&fq={!geofilt}&sfield=store&pt=45.15,-93.85&d=50&sort=geodist() asc]]
== Returning the distance ==
- Returning distances (and any arbitrary function query value) is currently under development. As a temporary workaround, it's possible to obtain distances by using geodist or geofilt as the only scoring part of the main query.
+ <!> [[Solr4.0]]
+
+ You can use the pseudo-field feature to return the distance along with the stored fields of each document by adding '''fl=geodist()''' to the request. Use an alias like '''fl=_dist_:geodist()''' to make the distance come back in the '''_dist_''' pseudo-field instead. Here is an example of sorting by distance ascending and returning the distance for each document in '''_dist_'''.
+
+ . [[http://localhost:8983/solr/select?wt=json&indent=true&fl=name,store&q=*:*&sfield=store&pt=45.15,-93.85&sort=geodist()%20asc&fl=_dist_:geodist()|...&q=*:*&sfield=store&pt=45.15,-93.85&sort=geodist() asc&&fl=_dist_:geodist()]]
+
+ As a temporary workaround for older Solr versions, it's possible to obtain distances by using geodist or geofilt as the only scoring part of the main query.
= Other Use Cases =
== How to combine with a sub-query to expand results ==