There are some fields in INFORMATION_SCHEMA.FILES which purely relate to tablespaces. When WL#2511 is ready it'll provide detailed information about tablespaces and there will be duplicating fields. These fields should be removed from I_S.FILES. References: architecture forum thread "Notes from the architecture meeting April 11-12" https://intranet.mysql.com/secure/forum/read.php?54,98909,98909#msg-98909
