Comment # 6 on bug 1200860 from Christopher Yeleighton

The upgrade to from 10.7.3-MariaDB to 10.10.2-MariaDB caused 9���GB of the
following message to fill the file mysql.err.old, eventually taking up all
storage space:

[ERROR] Incorrect definition of table mysql.column_stats: expected column

This is no way to do business, my good sirs :-(