INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (8904, 'EPSG', 8904, '+vunits=m +no_defs +type=crs', 'VERT_CS["TWVD 2001 height",VERT_DATUM["Taiwan Vertical Datum 2001",2005,AUTHORITY["EPSG","1224"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","8904"]]');