presto-geospatial/src/main/java/io/prestosql/plugin/geospatial/BingTileFunctions.java/BingTileFunctions/bingTileZoomLevel
class BingTileFunctions:    @Description("Given a Bing tile, returns zoom level of the tile")
    @ScalarFunction("bing_tile_zoom_level")
    @SqlType(StandardTypes.TINYINT)
    public static long bingTileZoomLevel(@SqlType(BingTileType.NAME) long input)
    {
        return BingTile.decode(input).getZoomLevel();
    }