[postgis-users] ST_MapAlgebraExpr() : what is mean [rast] ?
Pierre.Racine at sbf.ulaval.ca
Mon Nov 19 07:20:22 PST 2012
Which version of PostGIS are you using?
> -----Original Message-----
> From: postgis-users-bounces at lists.osgeo.org [mailto:postgis-users-
> bounces at lists.osgeo.org] On Behalf Of Mahavir Trivedi
> Sent: Monday, November 19, 2012 2:37 AM
> To: PostGIS Users Discussion
> Subject: [postgis-users] ST_MapAlgebraExpr() : what is mean [rast] ?
> dear friends
> I would to do export my raster with 10 and 200 to pixel values only .
> my large tiff image stored in databse in tile format.
> when I execute following query : update demtest set rast = ST_
> MapAlgebraExpr(rast,NULL,'[rast] between 10 and 200', NULL) where rid =2
> error is near "[" syntax
> pls any suggestion to design query ?
> with regards
> mahavir trivedi
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