INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (4912, 'EPSG', 4912, '+proj=geocent +ellps=GRS80 +units=m +no_defs +type=crs', 'GEOCCS["ITRF90",DATUM["International_Terrestrial_Reference_Frame_1990",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6649"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Geocentric X",OTHER],AXIS["Geocentric Y",OTHER],AXIS["Geocentric Z",NORTH],AUTHORITY["EPSG","4912"]]');