docs: public ResultSet getSuperTypes(String catalog, String schemaPattern, String typeNamePattern)
        throws SQLException {
      String sql =
          "SELECT  ' ' TYPE_CAT, NULL TYPE_SCHEM, ' ' TYPE_NAME, ' ' SUPERTYPE_CAT, ' ' SUPERTYPE_SCHEM, ' '  SUPERTYPE_NAME"
              + " FROM DUAL WHERE 1=0";
  
      return executeQuery(sql);
    }