[postgis-tickets] [PostGIS] #2829: [raster] Short-cut ST_Clip when extent fully contains raster extent

PostGIS trac at osgeo.org
Tue Jul 29 01:32:50 PDT 2014


#2829: [raster] Short-cut ST_Clip when extent fully contains raster extent
--------------------------+-------------------------------------------------
  Reporter:  strk         |       Owner:  dustymugs    
      Type:  enhancement  |      Status:  closed       
  Priority:  medium       |   Milestone:  PostGIS 2.1.4
 Component:  raster       |     Version:  trunk        
Resolution:  fixed        |    Keywords:  history      
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Comment(by strk):

 Ah, thanks. I thought it was about NODATA values being present in the
 raster, rather than passed as parameter. I didn't even know there was a
 NODATA parameter (too many overloads :)

 Forget the SQL implementation notes as there's no way an ST_Clip call
 would be using an index (unlikely to use WHERE ST_Clip...). Having it done
 within the C function though should still be faster though. Maybe for
 another ticket ?

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/2829#comment:7>
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