[postgis-devel] [PostGIS] #1319: [raster] Make raster_columns a view and AddRasterColumn enforce more

[PostGIS]

#1319: [raster] Make raster_columns a view and AddRasterColumn enforce more
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 Reporter:  robe            |       Owner:  robe         
     Type:  task            |      Status:  new          
 Priority:  high            |   Milestone:  PostGIS 2.0.0
Component:  postgis raster  |     Version:  trunk        
 Keywords:                  |  
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Comment(by dustymugs):

 Replying to [comment:10 pracine]:
 > Replying to [comment:8 dustymugs]:
 > > Added scalex and scaley.  Will need to write a lower-level function to
 get the band pixtypes of a raster quickly.
 >
 > I'm afraid there is no way to do that quick. Maybe for the first band
 but not for the other bands. Remember when you wrote deserialize_header...
 Would that mean that everything has to be deserialized to determine all
 the pixeltypes and the nodata values of all the bands of all the tables?
 Scary...

 Actually, I'm playing with a new function to see if I can selectively
 slice a band's metadata (and data if desired) without deserializing the
 entire raster.  I'll see what the performance is like when I'm done.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1319#comment:12>
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