rowid,zoom_level,tile_column,tile_row,tile_data
31797,15,15905,21685,http://datasette-tiles.planning.data.gov.uk/conservation-area/tiles/31797.blob?_blob_column=tile_data
45709,15,15905,21686,http://datasette-tiles.planning.data.gov.uk/conservation-area/tiles/45709.blob?_blob_column=tile_data