@VicDeo mentioned that MariaDB 10.3 will get rid of the innodb table format switch.

The question is whether this will make the DB default to always use mb4 or not.

We'll need to:

1. find a alternative for the missing config switch
2. if MariaDB 10.3 defaults to mb4 or to the other table format, check whether we need to provide a migration for all the data.

Let's do the research first before deciding on what to do.

@DeepDiver1975 @VicDeo