Changes between Version 52 and Version 53 of WKTRaster/SpecificationWorking03


Ignore:
Timestamp:
04/06/11 08:01:08 (14 years ago)
Author:
dustymugs
Comment:

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  • WKTRaster/SpecificationWorking03

    v52 v53  
    252252'''Open Question:''' Should the GDAL raster process be capable of supporting the GDAL capability Create?  As the GDAL raster process writes nothing to a file in the filesystem (via Virtual IO), should there be support for writing the output GDAL raster temporarily to the filesystem?  If so, how is it done in other PostgreSQL extensions in a secure manner?
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     256'''ST_srtext(rast raster) -> text'''
     257
     258A helper function to get the value of column srtext or proj4text for a raster with an SRID.  By default, the srtext is returned.  If srtext is not available but proj4text is, the proj4text is returned.
     259
     260This function may be removed based upon the capabilities of SPI.  It may not be possible to remove this function as the srs function argument of _ST_AsGDALRaster can be NULL, thereby not embedding any spatial reference information into the output GDAL raster.
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