INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (5739, 'EPSG', 5739, '+vunits=m +no_defs +type=crs', 'VERT_CS["HKCD depth",VERT_DATUM["Hong Kong Chart Datum",2005,AUTHORITY["EPSG","5136"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Depth",DOWN],AUTHORITY["EPSG","5739"]]');