[postgis-tickets] [PostGIS] #1798: Performance issue with ST_Intersects(geometry, geometry)

[PostGIS]

#1798: Performance issue with ST_Intersects(geometry,geometry)
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  Reporter:  nicklas  |       Owner:  pramsey      
      Type:  defect   |      Status:  reopened     
  Priority:  medium   |   Milestone:  PostGIS 2.2.0
 Component:  postgis  |     Version:  2.0.x        
Resolution:           |    Keywords:               
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Comment(by robe):

 It could be maybe just because ST_DWithin doesn't have to do that geos
 serialization step that its outperforming by saving that step, but then I
 would expect ST_Intersects to gain by using prepared geometry.

 The polygons aren't that big:

 {{{
 SELECT Max(ST_NPoints(geom)), AVG(ST_NPoints(geom))
 frOM intersects_order;

 Max   Avg
 582   416.5136436597110754
 }}}

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/1798#comment:29>
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