Como engadir proxección 900913 a geodatabase PostgreSQL/PostGIS

Como engadir proxección 900913 a geodatabase PostgreSQL/PostGIS


INSERT INTO spatial_ref_sys(
   srid,
   auth_name,
   auth_srid,
   srtext,
   proj4text
)
VALUES (
   900913,
   'EPSG',
   900913,
   'PROJCS["GOOGLE PROXECION",GEOGCS["WGS 84", DATUM["World Geodetic System 1984", SPHEROID["WGS 84", 6378137.0, 298.257223563,AUTHORITY["EPSG","7030"]], AUTHORITY["EPSG","6326"]], PRIMEM["Greenwich", 0.0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.017453292519943295], AXIS["Longitude", EAST], AXIS["Latitude", NORTH], AUTHORITY["EPSG","4326"]], PROJECTION["Mercator_1SP"],PARAMETER["semi_minor", 6378137.0], PARAMETER["latitude_of_origin",0.0], PARAMETER["central_meridian", 0.0], PARAMETER["scale_factor",1.0], PARAMETER["false_easting", 0.0], PARAMETER["false_northing", 0.0],UNIT["m", 1.0], AXIS["x", EAST], AXIS["y", NORTH], AUTHORITY["EPSG","900913"]]',
   '+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs'
);