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https://issues.apache.org/jira/browse/LUCENE-4585?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Smiley updated LUCENE-4585:
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Attachment: LUCENE-4585_PrefixTree_bugs.patch
The attached patch resolves the aforementioned problems.
However note that when a point is indexed, the final full-length token is not
indexed with a trailing leaf '+' byte variant; it was before. The up-side is
that we save one token per indexed point (~1/12th savings if 11 maxLevels).
The semantics of that '+' are intended to be that the entire grid cell
represents an indexed shape for matching, so compare the rectangle for it with
the query shape. But for points, it should be the center point of the cell, so
no '+'.
If a user doesn't re-index, then an indexed point is 1/2 the smallest grid cell
closer to a query shape and as such might match when it didn't before. Quite
minor I think but worth mentioning.
> Spatial RecursivePrefixTreeFilter has some bugs with indexing non-point shapes
> ------------------------------------------------------------------------------
>
> Key: LUCENE-4585
> URL: https://issues.apache.org/jira/browse/LUCENE-4585
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/spatial
> Affects Versions: 4.0
> Reporter: David Smiley
> Attachments: LUCENE-4585_PrefixTree_bugs.patch
>
>
> RecursivePrefixTreeFilter has some bugs that can occur when searching indexed
> shapes. One bug is an unpositioned termsEnum. It through an exception in
> testing; I'm not sure what its effects would be in production. The other
> couple bugs are hard to describe here but were rare to occur in extensive
> testing. The effects were probably a slim chance of matching an indexed shape
> near the query shape. And SpatialPrefixTree does not support an indexed shape
> that covers the entire globe.
> These bugs were discovered during development of tests for RPTF LUCENE-4419
> which I will submit shortly.
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