INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (4018, 'EPSG', 4018, '+proj=longlat +ellps=evrst48 +no_defs +type=crs', 'GEOGCS["Unknown datum based upon the Everest 1830 Modified ellipsoid (deprecated)",DATUM["Not_specified_based_on_Everest_1830_Modified_ellipsoid",SPHEROID["Everest 1830 Modified",6377304.063,300.8017,AUTHORITY["EPSG","7018"]],AUTHORITY["EPSG","6018"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4018"]]');