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Apache Solr Search Patterns by Jayant Kumar

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Searching and filtering on a spatial index

Spatial fields in a Solr index can be searched and filtered using the {!geofilt} and {!bbox} query filters. These filters were introduced and are available in Solr 4.2 onward. We saw a working example of geofilt earlier in this chapter. Let us go through some other queries that can be executed on a spatial index in Solr.

The bbox query

The working of a bbox filter is similar to that of geofilt, except that the former uses the bounding box of a calculated circle. The query remains the same, except that we use the {!bbox} filter instead of the {!geofilt} filter. To convert the earlier query to bbox from geofilt, we run the following query:

http://localhost:8983/solr/collection1/select/?q=*:*&fq={!bbox pt=28.643059,77.368885 ...

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