[postgis-devel] [PostGIS] #2122: [raster] Real extent feature lost after metadata as views

[PostGIS]

#2122: [raster] Real extent feature lost after metadata as views
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 Reporter:  mloskot                                 |       Owner:  dustymugs
     Type:  defect                                  |      Status:  new      
 Priority:  medium                                  |   Milestone:           
Component:  raster                                  |     Version:  trunk    
 Keywords:  regular blocking,raster,extent,padding  |  
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Comment(by pracine):

 Replying to [comment:3 dustymugs]:
 > I'm fine with the proposal "on paper".  Implementing is a whole
 different nightmare as parts of it may not be able to be implemented,
 specifically testing that any two tiles can only touch.

 We removed the need to test for gaps and overlaps. Everything is now just
 based on metadatas, upper left corners and tile sizes. I don't think this
 involves relationships like touch or intersects anymore.

 I think the test of alignment of upper left corners resume to something
 very close to ST_SameAlignment(). I am more worry about how to determine
 what tiles are the right-most and bottom ones.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2122#comment:4>
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