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https://issues.apache.org/jira/browse/SOLR-1568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12796524#action_12796524
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patrick o'leary commented on SOLR-1568:
---------------------------------------
bq. A smart spatial filter, at a minimum, only does the distance calculation
for those documents that lie within the bounding box. That's the main point to
the bounding box. I had assumed this is what Patrick's local-solr already did?
It's a little more contrived - I actually executed the lucene query as part of
the filter,
* Bounded box
* Text query standard query
* And bitset
* Pass in that bitset to radial filter to only calculate distances of both text
search, and bounded box
Thus only doc's matching the query within the bounding box have their distances
calculated.
Check out
DistanceQueryBuilder
{code}
public Filter getFilter(Query query) {
// Chain the Query (as filter) with our distance filter
if (distanceFilter != null) {
distanceFilter.reset();
}
QueryWrapperFilter qf = new QueryWrapperFilter(query);
return new ChainedFilter(new Filter[] {qf, filter},
ChainedFilter.AND);
}
public Query getQuery(Query query){
return new ConstantScoreQuery(getFilter(query));
}
{code}
> Implement Spatial Filter
> ------------------------
>
> Key: SOLR-1568
> URL: https://issues.apache.org/jira/browse/SOLR-1568
> Project: Solr
> Issue Type: New Feature
> Reporter: Grant Ingersoll
> Assignee: Grant Ingersoll
> Priority: Minor
> Fix For: 1.5
>
> Attachments: CartesianTierQParserPlugin.java
>
>
> Given an index with spatial information (either as a geohash,
> SpatialTileField (see SOLR-1586) or just two lat/lon pairs), we should be
> able to pass in a filter query that takes in the field name, lat, lon and
> distance and produces an appropriate Filter (i.e. one that is aware of the
> underlying field type for use by Solr.
> The interface _could_ look like:
> {code}
> &fq={!sfilt dist=20}location:49.32,-79.0
> {code}
> or it could be:
> {code}
> &fq={!sfilt lat=49.32 lat=-79.0 f=location dist=20}
> {code}
> or:
> {code}
> &fq={!sfilt p=49.32,-79.0 f=location dist=20}
> {code}
> or:
> {code}
> &fq={!sfilt lat=49.32,-79.0 fl=lat,lon dist=20}
> {code}
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