code: @Override
  	public byte[] getBlob(int columnIndex) {
  		byte[] value;
  		try {
  			value = resultSet
  					.getBytes(resultIndexToResultSetIndex(columnIndex));
  		} catch (SQLException e) {
  			throw new GeoPackageException(
  					"Failed to get blob bytes for column index: " + columnIndex,
  					e);
  		}
  		return value;
  	}
docs: {@inheritDoc}