The row (with type MEDIUMTEXT) has been accidentally updated with empty value. I can see previous data in MYD file of a table, but I can't get them neither from mysqldump or any mysql client. If I execute
mysqlcheck -u root -p --auto-repair --check --optimize the MYD-file shrinks from 1688484 bytes to 449008 bytes.
Is there any way to export data from MYD or mark data as undeleted?
Version from dump is: MySQL dump 10.13 Distrib 5.1.37, for pc-solaris2.11 (i386)