INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (10991, 'EPSG', 10991, '+proj=geocent +ellps=WGS84 +units=m +no_defs +type=crs', 'GEOCCS["Xrail84",DATUM["Xrail84",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","1408"]],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","10991"]]');