mysql 5.6 innoDB 不支持數據和索引分離
innoDB 不支持 INDEX DIRECTORY
。但是 MyISAM 是支持索引和數據在文件系統上的分離。
https://dba.stackexchange.com/questions/83302/mysql-table-indexes-change-location
http://blog.itpub.net/28602568/viewspace-2090642/
Store Mysql Index in separate .Ibd file?
High Performance MySQL by Derek J. Balling, Jeremy D. Zawodny-Chapter 4. Indexes
does non clustered index create a separate file to store its data? [closed]