Antonio, I think all the spatial references used are EPSG in the spatial_ref_sys table. There used to be a time when ESRI codes were used, but I don't see those in the newer spatial_ref_sys tables. Anyrate the standard query to pull up all EPSG codes supported would be the below (it applies for any OGC compliant DB with slight variation) SELECT * FROM spatial_ref_sys where auth_name = 'EPSG' I think pretty much for all cases as far as Postgis is concerned the EPSG auth_srid matches the SRID. This is not the case for all spatial database providers. In cases where the authority name's SRID is different from PostGIS, that SRID would be stored in the auth_srid field. Hope that helps, Regina
_____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of António Pestana Sent: Sunday, May 25, 2008 7:00 PM To: postgis-users@postgis.refractions.net Subject: [postgis-users] SRID and EPSG What version of EPSG-codes are used by PostGIS? I have just downloaded and installed PostgreSQL (MS Windows) and I couldn't find anything about this subject in the documentation. Thanks
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