rowid,zoom_level,tile_column,tile_row,tile_data
34114,15,16234,22434,http://datasette-tiles.planning.data.gov.uk/conservation-area/tiles/34114.blob?_blob_column=tile_data
42670,15,16233,22434,http://datasette-tiles.planning.data.gov.uk/conservation-area/tiles/42670.blob?_blob_column=tile_data