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From "Ryan McKinley (JIRA)" <>
Subject [jira] [Commented] (LUCENE-4895) Implement Spatial "disjoint" predicate.
Date Mon, 01 Apr 2013 21:41:15 GMT


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:
>             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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