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https://issues.apache.org/jira/browse/LUCENE-4895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13619462#comment-13619462
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David Smiley commented on LUCENE-4895:
--------------------------------------
Yeah, I agree. Some apps will always have spatial data in a field and so
calculating IsSpatial() is redundant, though I suppose that's not a big deal if
it's cached. Where shall that be cached? Hmmm.
> Implement Spatial "disjoint" predicate.
> ---------------------------------------
>
> Key: LUCENE-4895
> URL: https://issues.apache.org/jira/browse/LUCENE-4895
> Project: Lucene - Core
> Issue Type: New Feature
> Components: modules/spatial
> Reporter: David Smiley
> Assignee: David Smiley
> Priority: Minor
> Fix For: 4.3
>
>
> The "IsDisjointTo" SpatialOperation is not implemented for
> RecursivePrefixTreeStrategy and some/all others(?). It has been very low
> priority because it is simply the inverse of "Intersects" which is
> universally implemented on the SpatialStrategy implementations.
> * Should spatial "disjoint" count documents that have no spatial data?
> * Arguably, there should be one implementation amongst the SpatialStrategies
> implemented in terms of "Intersects"; this way each strategy need not deal
> with it.
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