[postgis-tickets] [PostGIS] #2454: [raster] ST_PixelAsPolygons does not obey exclude_nodata_value=TRUE

[PostGIS]

#2454: [raster] ST_PixelAsPolygons does not obey exclude_nodata_value=TRUE
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 Reporter:  alfred  |       Owner:  dustymugs    
     Type:  defect  |      Status:  new          
 Priority:  medium  |   Milestone:  PostGIS 2.1.1
Component:  raster  |     Version:  2.1.x        
 Keywords:          |  
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 ST_PixelAsPolygons and all related functions (Ex: ST_PixelAsCentroids)
 always iterate over all pixels, even the ones with nodatavalue.
 Setting the "exclude_nodata_value" parameter does not seem to affect the
 result at all.

 Seen with PostGIS 2.1.0 final.
 Patch for this will be greatly appreciated.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2454>
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