code: public void updateCharacterStream(int columnIndex, Reader value, long length)
        throws SQLException {
      checkUpdatable(columnIndex);
      if (value == null) {
        parameterHolders[columnIndex - 1] = new NullParameter(ColumnType.BLOB);
        return;
      }
      parameterHolders[columnIndex - 1] = new ReaderParameter(value, length, noBackslashEscapes);
    }
docs: {inheritDoc}.