[postgis-devel] [PostGIS] #1796: Improve ST_DWithin performance, especially for geography

[PostGIS]

#1796: Improve ST_DWithin performance, especially for geography
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 Reporter:  realityexists  |       Owner:  pramsey      
     Type:  enhancement    |      Status:  new          
 Priority:  medium         |   Milestone:  PostGIS 2.1.0
Component:  postgis        |     Version:  2.0.x        
 Keywords:                 |  
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Comment(by pramsey):

 This is substantially complete for geography at r10006. The same approach
 could speed up distance searches in geometry. There is also a little more
 work to do adding some regression tests and potentially expanding the use
 of the tree cache to the ST_Covers(geog, geog) function.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/1796#comment:2>
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