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From "David Smiley (JIRA)" <>
Subject [jira] [Commented] (SOLR-3864) Spatial maxDetailDist doesn't follow degrees standardization
Date Fri, 21 Sep 2012 20:08:07 GMT


David Smiley commented on SOLR-3864:

I plan to commit this tonight to 4x.
> Spatial maxDetailDist doesn't follow degrees standardization
> ------------------------------------------------------------
>                 Key: SOLR-3864
>                 URL:
>             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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