[ https://issues.apache.org/jira/browse/SOLR-3864?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
David Smiley resolved SOLR-3864.
--------------------------------
Resolution: Fixed
Fix Version/s: (was: 4.1)
4.0
Committed to trunk, 4x, and 4.0 branches.
> Spatial maxDetailDist doesn't follow degrees standardization
> ------------------------------------------------------------
>
> Key: SOLR-3864
> URL: https://issues.apache.org/jira/browse/SOLR-3864
> Project: Solr
> Issue Type: Bug
> Components: Schema and Analysis
> Reporter: David Smiley
> Assignee: David Smiley
> Fix For: 4.0
>
> Attachments: SOLR-3864_maxDetailDist_-__maxDistErr,_and_make_units=_degrees__mandatory.patch
>
>
> Technically this bug is in Lucene spatial but it's on a factory that is only really used
by the Solr adapter, plus I added a mandatory attribute so I decided to file it here.
> The maxDetailDist attribute on SpatialRecursivePrefixTreeFieldType is interpreted as
kilometers for a geospatial context. However, for this first release of spatial, all distances
are standardized on degrees. Of course I want to support kilometers but not inconsistently
and there isn't time for that right now. Because this is likely to be a common problem of
interpreting distances for this field, I decided to add a mandatory attribute "units" which
must be "degrees". When kilometers is supported then it will be added.
> Furthermore, the name "maxDetailDist" as a name isn't so great. As part of some renames
related to this sort of thing a month back I overlooked this one. I think "maxDistErr" is
better and more consistent with attributes such as "distErr" you can put in shape query.
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