docs: public void updateBlob(int columnIndex,
                             java.sql.Blob x) throws SQLException {
  
          if (x instanceof JDBCBlobClient) {
              throw Util.sqlException(ErrorCode.JDBC_INVALID_ARGUMENT,
                                      "invalid Blob");
          }
          startUpdate(columnIndex);
          preparedStatement.setBlobParameter(columnIndex, x);
      }