INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (7839, 'EPSG', 7839, '+vunits=m +no_defs +type=crs', 'VERT_CS["NZVD2016 height",VERT_DATUM["New Zealand Vertical Datum 2016",2005,AUTHORITY["EPSG","1169"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","7839"]]');