rowid,zoom_level,tile_column,tile_row,tile_data
2,1,0,1,https://datasette-tiles-demo.datasette.io/basemap/tiles/2.blob?_blob_column=tile_data
3,1,0,0,https://datasette-tiles-demo.datasette.io/basemap/tiles/3.blob?_blob_column=tile_data
4,1,1,1,https://datasette-tiles-demo.datasette.io/basemap/tiles/4.blob?_blob_column=tile_data
5,1,1,0,https://datasette-tiles-demo.datasette.io/basemap/tiles/5.blob?_blob_column=tile_data