INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (9669, 'EPSG', 9669, '+vunits=m +no_defs +type=crs', 'VERT_CS["BGS2005 height",VERT_DATUM["Bulgarian Height System 2005",2005,AUTHORITY["EPSG","1300"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","9669"]]');