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Posted to dev@lucene.apache.org by "Ryan McKinley (JIRA)" <ji...@apache.org> on 2013/04/01 23:41:15 UTC

[jira] [Commented] (LUCENE-4895) Implement Spatial "disjoint" predicate.

    [ https://issues.apache.org/jira/browse/LUCENE-4895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13619209#comment-13619209 ] 

Ryan McKinley commented on LUCENE-4895:
---------------------------------------

bq.  Should spatial "disjoint" count documents that have no spatial data?

Hopefully not -- I guess that implies we need a query for IsSpatial() or equivalent so IsDisjointTo() = IsSpatial() && !Intersects()




                
> 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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