rowid,zoom_level,tile_column,tile_row,tile_data
320,13,3989,5428,http://datasette-tiles.staging.planning.data.gov.uk/battlefield/tiles/320.blob?_blob_column=tile_data
362,13,3989,5427,http://datasette-tiles.staging.planning.data.gov.uk/battlefield/tiles/362.blob?_blob_column=tile_data
389,13,3989,5426,http://datasette-tiles.staging.planning.data.gov.uk/battlefield/tiles/389.blob?_blob_column=tile_data