INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (4206, 'EPSG', 4206, '+proj=longlat +ellps=clrk80ign +no_defs +type=crs', 'GEOGCS["Agadez",DATUM["Agadez",SPHEROID["Clarke 1880 (IGN)",6378249.2,293.466021293627,AUTHORITY["EPSG","7011"]],AUTHORITY["EPSG","6206"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4206"]]');