rowid,zoom_level,tile_column,tile_row,tile_data
8776,15,16371,22028,http://datasette-tiles.planning.data.gov.uk/ramsar/tiles/8776.blob?_blob_column=tile_data
8985,15,16371,22029,http://datasette-tiles.planning.data.gov.uk/ramsar/tiles/8985.blob?_blob_column=tile_data