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

PostGIS trac at osgeo.org
Fri Feb 3 10:40:43 PST 2012

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

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?

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