root@db2093.codfw.wmnet[zarcillo]> select file_path, file_name, size FROM backup_files where backup_id=6320 and file_name IN ('page.ibd', 'revision.ibd'); 
+-----------+--------------+-------------+
| file_path | file_name    | size        |
+-----------+--------------+-------------+
| frwiki    | page.ibd     |  1681915904 |
| frwiki    | revision.ibd | 38897975296 |
| jawiki    | page.ibd     |   574619648 |
| jawiki    | revision.ibd | 18299748352 |
| ruwiki    | page.ibd     |  1069547520 |
| ruwiki    | revision.ibd | 23731372032 |
+-----------+--------------+-------------+
6 rows in set (0.04 sec)

root@db2093.codfw.wmnet[zarcillo]> select file_path, file_name, size FROM backup_files where backup_id=6370 and file_name IN ('page.ibd', 'revision.ibd');
+-----------+--------------+-------------+
| file_path | file_name    | size        |
+-----------+--------------+-------------+
| frwiki    | page.ibd     |  1681915904 |
| frwiki    | revision.ibd | 21881683968 |
| jawiki    | page.ibd     |   574619648 |
| jawiki    | revision.ibd | 10141827072 |
| ruwiki    | page.ibd     |  1069547520 |
| ruwiki    | revision.ibd | 13123977216 |
+-----------+--------------+-------------+
6 rows in set (0.04 sec)