INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (4027, 'EPSG', 4027, '+proj=longlat +a=6376523 +rf=308.64 +no_defs +type=crs', 'GEOGCS["Unknown datum based upon the Plessis 1817 ellipsoid (deprecated)",DATUM["Not_specified_based_on_Plessis_1817_ellipsoid",SPHEROID["Plessis 1817",6376523,308.64,AUTHORITY["EPSG","7027"]],AUTHORITY["EPSG","6027"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4027"]]');