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https://issues.apache.org/jira/browse/LUCENE-5579?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Smiley resolved LUCENE-5579.
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Resolution: Fixed
Fix Version/s: 5.2
Lucene Fields: New,Patch Available (was: New)
> Spatial, enhance RPT to differentiate confirmed from non-confirmed hits, then
> validate with SDV
> -----------------------------------------------------------------------------------------------
>
> Key: LUCENE-5579
> URL: https://issues.apache.org/jira/browse/LUCENE-5579
> Project: Lucene - Core
> Issue Type: New Feature
> Components: modules/spatial
> Reporter: David Smiley
> Assignee: David Smiley
> Fix For: 5.2
>
> Attachments: LUCENE-5579_CompositeSpatialStrategy.patch,
> LUCENE-5579_CompositeSpatialStrategy.patch,
> LUCENE-5579_SPT_leaf_covered.patch, spatial.alg
>
>
> If a cell is within the query shape (doesn't straddle the edge), then you can
> be sure that all documents it matches are a confirmed hit. But if some
> documents are only on the edge cells, then those documents could be validated
> against SerializedDVStrategy for precise spatial search. This should be
> *much* faster than using RPT and SerializedDVStrategy independently on the
> same search, particularly when a lot of documents match.
> Perhaps this'll be a new RPT subclass, or maybe an optional configuration of
> RPT. This issue is just for the Intersects predicate, which will apply to
> Disjoint. Until resolved in other issues, the other predicates can be
> handled in a naive/slow way by creating a filter that combines RPT's filter
> and SerializedDVStrategy's filter using BitsFilteredDocIdSet.
> One thing I'm not sure of is how to expose to Lucene-spatial users the
> underlying functionality such that they can put other query/filters
> in-between RPT and the SerializedDVStrategy. Maybe that'll be done by simply
> ensuring the predicate filters have this capability and are public.
> It would be ideal to implement this capability _after_ the PrefixTree term
> encoding is modified to differentiate edge leaf-cells from non-edge leaf
> cells. This distinction will allow the code here to make more confirmed
> matches.
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