[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 nicklas):

 Yes, I can confirm that 2-rasterworks as expected.

 The reason I said it didn't was that I tested to make an expression like
 this:

 (([rast1]-[rast2])>50)::int

 and expected to get 0 and 1 for true or false as I do in a normal SELECT
 query. Bu that didn't work.

 I also tried to populate pixeltype '1BB' with the above without the cast
 to integer but that didn't work either.

 How to populate boolean pixeltype?

-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/1639#comment:6>
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