[postgis-devel] [PostGIS] #1522: [RASTER] ST_MapAlgebraExpr : use prepared queries

[PostGIS]

#1522: [RASTER] ST_MapAlgebraExpr : use prepared queries
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 Reporter:  strk         |       Owner:  dzwarg       
     Type:  enhancement  |      Status:  new          
 Priority:  medium       |   Milestone:  PostGIS 2.0.0
Component:  raster       |     Version:  trunk        
 Keywords:               |  
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Comment(by pracine):

 On the track of optimization: Is there any result caching for when the
 current pixel has the same value as the previous one (so we don't have to
 call the interpreter twice)? Are prepared query so smart as they do the
 caching themselves?

 Is there any other ways to optimize the one raster mapalgebra?

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/1522#comment:4>
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