code: @Override
  	public int getColumnIndex(String columnName) {
  		int index;
  		try {
  			index = resultSetIndexToResultIndex(resultSet
  					.findColumn(columnName));
  		} catch (SQLException e) {
  			throw new GeoPackageException(
  					"Failed to find column index for column name: "
  							+ columnName, e);
  		}
  		return index;
  	}
docs: {@inheritDoc}