[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 dustymugs):

 Last month, it was found that some casts (integer vs double precision)
 caused noticeable bottlenecks when executing prepared statements.  We
 haven't had time to ask the PostgreSQL crowd why using integer instead of
 the usual double precision would cause a significant slowdown.

 I don't expect PostGIS Raster to significantly beat any dedicated desktop
 raster processing application ever.  If we're lucky, we'll be able to
 match the speed though realistically we'll probably be happy incremental
 performance boosts over time.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/1639#comment:18>
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