[postgis-devel] [PostGIS] #1639: [raster] MapAlgebraExpr can't handle conditions

[PostGIS]

#1639: [raster] MapAlgebraExpr can't handle conditions
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 Reporter:  nicklas  |       Owner:  pracine      
     Type:  defect   |      Status:  new          
 Priority:  high     |   Milestone:  PostGIS 2.0.0
Component:  raster   |     Version:  trunk        
 Keywords:           |  
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Comment(by pracine):

 False interpretation:

 "So both pixels returns true as I understand it."

 No, one pixel gets 1 (true) and the other get nodata. As yo can see the
 count is 1, not two.

 "But at once I get under 8, instead of giving one false and one true I get
 both true."

 As soon as your condition gets under 8, one pixel gets true = 1 and the
 other gets nodata value, hence the correct result.

 I think we can close this one :-) One less!

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/1639#comment:13>
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