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https://issues.apache.org/jira/browse/LUCENE-3795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13209888#comment-13209888
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Uwe Schindler commented on LUCENE-3795:
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Cool work! I scanned the code quickly and it seems to fit much better than the 
current spatial!

I have some suggestions regarding performance; BooleanQuery usage and related 
inconsistency with BQ scoring (with coord) in the different strategies; also 
found some caching problems (AtomicReader is key to cache not 
AtomicReader.getCoreCacheKey, so new deleted docs after reopen invalidate the 
cache), but I would prefer to discuss that here once the patch is provided on 
Lucene's JIRA.
                
> Replace spatial contrib module with LSP's spatial-lucene module
> ---------------------------------------------------------------
>
>                 Key: LUCENE-3795
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3795
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: modules/spatial
>            Reporter: David Smiley
>            Assignee: David Smiley
>             Fix For: 4.0
>
>
> I propose that Lucene's spatial contrib module be replaced with the 
> spatial-lucene module within Lucene Spatial Playground (LSP).  LSP has been 
> in development for approximately 1 year by David Smiley, Ryan McKinley, and 
> Chris Male and we feel it is ready.  LSP is here: 
> http://code.google.com/p/lucene-spatial-playground/  and the spatial-lucene 
> module is intuitively in svn/trunk/spatial-lucene/.
> I'll add more comments to prevent the issue description from being too long.

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