[postgis-tickets] [PostGIS] #2359: raster2pgsql - large collection of examples of different bugs in -l (overviews)

[PostGIS]

#2359: raster2pgsql - large collection of examples of different bugs in -l
(overviews)
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 Reporter:  gbell                   |       Owner:  dustymugs    
     Type:  defect                  |      Status:  new          
 Priority:  high                    |   Milestone:  PostGIS 2.1.0
Component:  raster                  |     Version:  2.0.x        
 Keywords:  raster2pgsql overviews  |  
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Comment(by gbell):

 Also, an outline of a simple fix that might address many of these cases.

 1. Calculate when this is occurring most often.
 (At a guess, perhaps when the overview will have a size that is smaller
 than one tile, or some other threshold value).

 2. Detect if the raster size, when rescaled to the overview size, will be
 less than the bug threshhold.

 3. Report to the user that the requested overview will be too small for
 the raster and exit cleanly.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2359#comment:1>
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