rowid,zoom_level,tile_column,tile_row,tile_data
111,7,115,74,https://datasette-tiles-demo.datasette.io/japan-toner/tiles/111.blob?_blob_column=tile_data
123,7,114,74,https://datasette-tiles-demo.datasette.io/japan-toner/tiles/123.blob?_blob_column=tile_data
135,7,113,74,https://datasette-tiles-demo.datasette.io/japan-toner/tiles/135.blob?_blob_column=tile_data