ST_SRID — Returns the spatial reference identifier of the raster as defined in spatial_ref_sys table.
integer ST_SRID(raster rast);
Restituisce l'identificatore di riferimento spaziale dell'oggetto raster come definito nella tabella spatial_ref_sys.
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Non-georeferenced rasters and geometries use SRID 0. |
SELECT ST_SRID(rast) As srid
FROM dummy_rast WHERE rid=1;
srid
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0