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Can I use now ST_Transform (geom, 900914) to project all the data in my db to the newly added coordinate system? 1) Yes you can. And this was because the importer you used (presumably shape2sql or ogr2ogr?) had UPDATEd (i.e., overwritten) the original srid=900913 entry in the spatial_ref_sys table with the source data's WKT and PROJ entries. The importer ...


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gdb files are ESRI GeoDatabase files, a proprietary format not suited for exchange with other applications. There seems to be no GDAL raster driver for ESRI GeoDatabase files, and since R uses GDAL to load raster data, this won't work. You'll need to get the data in a GDAL supported format - for rasters a GeoTIFF is usually the solution. There is a GDAL ...


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