[jira] [Updated] (SOLR-10039) LatLonPointSpatialField

["David Smiley (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-10039?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Smiley updated SOLR-10039:
--------------------------------
    Attachment: SOLR_10039_LatLonPointSpatialField.patch

New patch:
* indexed & docValues are now properly configurable
* tested geodist() with this field, and ascending/descending.

I think it's ready, but I want to expand the patch to add this field type to our example configs in at least every file that already includes a spatial field, ordered just ahead of them so users are more likely to use this one.

Query by polygon is left as a future TODO.

> LatLonPointSpatialField
> -----------------------
>
>                 Key: SOLR-10039
>                 URL: https://issues.apache.org/jira/browse/SOLR-10039
>             Project: Solr
>          Issue Type: New Feature
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: spatial
>            Reporter: David Smiley
>            Assignee: David Smiley
>         Attachments: SOLR_10039_LatLonPointSpatialField.patch, SOLR_10039_LatLonPointSpatialField.patch
>
>
> The fastest and most efficient spatial field for point data in Lucene/Solr is {{LatLonPoint}} in Lucene's sandbox module.  I'll include {{LatLonDocValuesField}} with this even though it's a separate class.  LatLonPoint is based on the Points API, using a BKD index.  It's multi-valued capable.  LatLonDocValuesField is based on sorted numeric DocValues, and thus is also multi-valued capable (a big deal as the existing Solr ones either aren't or do poorly at it).  Note that this feature is limited to a latitude/longitude spherical world model.  And furthermore the precision is at about a centimeter -- less precise than the other spatial fields but nonetheless plenty good for most applications.  Last but not least, this capability natively supports polygons, albeit those that don't wrap the dateline or a pole.
> I propose a {{LatLonPointSpatialField}} which uses this.  Patch & details forthcoming...
> This development was funded by the Harvard Center for Geographic Analysis as part of the HHypermap project



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