rowid,zoom_level,tile_column,tile_row,tile_data
2898,14,8255,10971,http://datasette-tiles.planning.data.gov.uk/ramsar/tiles/2898.blob?_blob_column=tile_data
3490,14,8254,10971,http://datasette-tiles.planning.data.gov.uk/ramsar/tiles/3490.blob?_blob_column=tile_data