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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SOLR-1568) Implement Spatial Filter
Date Mon, 04 Jan 2010 20:47:54 GMT

    [ https://issues.apache.org/jira/browse/SOLR-1568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12796348#action_12796348
] 

Yonik Seeley commented on SOLR-1568:
------------------------------------

bq. Also, in all of these proposals, how do we intend to specify what distance calculation
to use?

IMO, the user shouldn't have to.  The vast majority of users want "normal" spatial search...
fast yet good enough.   They won't know the details and won't want to know (except perhaps
that it's accurate to x meters).

For those super-advanced users that wish to specify their own distance function, we could
allow an optional parameter on sfilt that specifies an arbitrary function.

> 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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