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https://issues.apache.org/jira/browse/SOLR-4242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14266784#comment-14266784
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David Smiley commented on SOLR-4242:
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Returning distances/boost:
I meant that st_distance could be an alias to geodist().
To further align with the st_* naming, we could add st_area, st_area2d, and
st_recipDistance and furthermore, along with st_distance, add support for
referencing the wkt request param. It'd be nice if in SOLR-6797 we had
distanceUnits as a request param since then it'd be easy to use 'km' without
having to know what to supply to sphere_radius. Oh yeah, sphere_radius is
purely understood by geofilt.
The filtering/predicates (e.g. st_dwithin, st_intersects...) could work with
the score=... local-param to not only filter but yield the distance as the
score. That will probably _just work_.
> A better spatial query parser
> -----------------------------
>
> Key: SOLR-4242
> URL: https://issues.apache.org/jira/browse/SOLR-4242
> Project: Solr
> Issue Type: New Feature
> Components: spatial
> Reporter: David Smiley
> Fix For: 4.9, Trunk
>
>
> I've been thinking about how spatial support is exposed to Solr users.
> Presently there's the older Solr 3 stuff, most prominently seen via
> \{!geofilt} and \{!bbox} done by [~gsingers] (I think). and then there's the
> Solr 4 fields using a special syntax parsed by Lucene 4 spatial that looks
> like mygeofield:"Intersects(Circle(1 2 d=3))" What's inside the outer
> parenthesis is parsed by Spatial4j as a shape, and it has a special
> (non-standard) syntax for points, rects, and circles, and then there's WKT.
> I believe this scheme was devised by [~ryantxu].
> I'd like to devise something that is both comprehensive and is aligned with
> standards to the extent that it's prudent. The old Solr 3 stuff is not
> comprehensive and not standardized. The newer stuff is comprehensive but
> only a little based on standards. And I think it'd be nicer to implement it
> as a Solr query parser. I'll say more in the comments.
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