[postgis-devel] [PostGIS] #502: [wktraster] Optimize ST_Intersection when the geometry is a point

[PostGIS]

#502: [wktraster] Optimize ST_Intersection when the geometry is a point
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 Reporter:  pracine    |       Owner:  jorgearevalo   
     Type:  defect     |      Status:  new            
 Priority:  medium     |   Milestone:  WKTRaster 0.1.6
Component:  wktraster  |     Version:  trunk          
 Keywords:             |  
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 It might be much quicker to provide the value associated with a pixel
 intersecting with a point geometry when using ST_Intersection() by
 accessing the pixel value with ST_Value instead of vectorizing the whole
 tile. This, obviously, do not work when the intersecting geometry is a
 polygon. In this case we have to vectorize the complete raster tile.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/502>
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