INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (4871, 'EPSG', 4871, '+proj=tmerc +lat_0=0 +lon_0=21.5 +k=1 +x_0=100000 +y_0=1000000 +ellps=GRS80 +towgs84=565.04,49.91,465.84,1.9848,-1.7439,9.0587,4.0772 +units=m +no_defs +type=crs', 'PROJCS["ETRS89 / NTM zone 21",GEOGCS["ETRS89",DATUM["European_Terrestrial_Reference_System_1989",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],TOWGS84[565.04,49.91,465.84,1.9848,-1.7439,9.0587,4.0772],AUTHORITY["EPSG","6258"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4258"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",21.5],PARAMETER["scale_factor",1],PARAMETER["false_easting",100000],PARAMETER["false_northing",1000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","4871"]]');