[postgis-devel] [PostGIS] #845: ST_Intersects() precision error - returns false instead of true

[PostGIS]

#845: ST_Intersects() precision error - returns false instead of true
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 Reporter:  cdestigter  |       Owner:  pramsey      
     Type:  defect      |      Status:  new          
 Priority:  medium      |   Milestone:  PostGIS 2.0.0
Component:  postgis     |     Version:  1.5.X        
 Keywords:              |  
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Comment(by strk):

 Not a precision issue, or ST_Relate and ST_Disjoint would also be wrong.
 Sounds more like a conceptual bug like a shortcut or something.
 Quick, easy test:
 {{{
 select (a && b) as "&&", st_relate(a, b), st_intersects(a, b),
 _st_intersects(a,b), st_disjoint(a,b) from
 (select
 'POINT(169.69960846592 -46.5061209281002)'::geometry
 as a,
 'POLYGON((169.699607857174 -46.5061218662,169.699607857174
 -46.5061195965597,169.699608806526 -46.5061195965597,169.699608806526
 -46.5061218662,169.699607857174 -46.5061218662))'::geometry
 as b) as foo;
 }}}

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/845#comment:1>
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