INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (5710, 'EPSG', 5710, '+vunits=m +no_defs +type=crs', 'VERT_CS["Ostend height",VERT_DATUM["Ostend",2005,AUTHORITY["EPSG","5110"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5710"]]');