Mysql 5.7 myisamchk 실행시 당황하지 않기

Mysql 5.6 버젼까지는 myisamchk -r mytable.MYI 를 이용하였으나
Mysql 5.7 버젼에서는 에러가 발생한다.

# myisamchk mytable
Checking MyISAM file: mytable
Data records:   17952   Deleted blocks:       0
- check file-size
- check record delete-chain
- check key delete-chain
- check index reference
- check data record references index: 1

# myisamchk mytable.MYI
myisamchk: error: 140 when opening MyISAM-table 'mytable.MYI'