[postgis-devel] [PostGIS] #593: [raster] Add a ST_BandIsNoData function

[PostGIS]

#593: [raster] Add a ST_BandIsNoData function
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  Reporter:  pracine         |       Owner:  jorgearevalo 
      Type:  task            |      Status:  reopened     
  Priority:  medium          |   Milestone:  PostGIS 2.0.0
 Component:  postgis raster  |     Version:  trunk        
Resolution:                  |    Keywords:               
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Comment(by jorgearevalo):

 Commited some changes in r6736:[[BR]]
 - Created function ST_SetBandIsNodata[[BR]]
 - Deleted the isnodata checking from loader (it did nothing). Check the
 pixel values while loading them is not a trivial task. The WKB for band
 header is generated before the WKB for band data. So, we should modify WKB
 for band header after checking pixels when needed. I think that is not a
 priority right now.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/593#comment:21>
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