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

PostGIS trac at osgeo.org
Wed Jun 13 09:21:52 PDT 2012


#1798: Performance issue with ST_Intersects(geometry,geometry)
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 Reporter:  nicklas  |       Owner:  pramsey      
     Type:  defect   |      Status:  new          
 Priority:  medium   |   Milestone:  PostGIS 2.0.1
Component:  postgis  |     Version:  2.0.x        
 Keywords:           |  
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Comment(by strk):

 We could surely use second geometry but our second geometry will only be
 the same polygon every count(polygons) calls...

 I don't know how the planner picks which scan to perform first.
 Try with the same number of records for each table ?

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1798#comment:15>
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