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https://issues.apache.org/jira/browse/LUCENE-4186?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13448801#comment-13448801
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Chris Male commented on LUCENE-4186:
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bq. It'd be nice if this could be done at index time too but I'm not sure how
it would fit into the API. Maybe an overloaded
createIndexableFields(shape,distErr)
I've always thought it was a little unusual createIndexableFields didn't also
accept SpatialArgs, so why don't we change it so it does?
> Lucene spatial's "distErrPct" is treated as a fraction, not a percent.
> ----------------------------------------------------------------------
>
> Key: LUCENE-4186
> URL: https://issues.apache.org/jira/browse/LUCENE-4186
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/spatial
> Reporter: David Smiley
> Assignee: David Smiley
> Priority: Critical
> Fix For: 4.0
>
> Attachments: LUCENE-4186_distErrPct_upgrade.patch
>
>
> The distance-error-percent of a query shape in Lucene spatial is, in a
> nutshell, the percent of the shape's area that is an error epsilon when
> considering search detail at its edges. The default is 2.5%, for reference.
> However, as configured, it is read in as a fraction:
> {code:xml}
> <fieldType name="location_2d_trie"
> class="solr.SpatialRecursivePrefixTreeFieldType"
> distErrPct="0.025" maxDetailDist="0.001" />
> {code}
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