Some information in that post is out of date -- for example, MySQL has supported virtual columns for eight years now. Other things in there are a bit of a head

Some information in that post is out of date -- for example, MySQL has supported virtual columns for eight years now. Other things in there are a bit of a head-scratcher. Using multiple storage engines in one table is a terrible idea ACID-wise, since each storage engine has its own separate transaction implementation (if it has one at all). If I was to list meaningful features in a MySQL vs MariaDB comparison, that one wouldn't make the list at all... In any case, AWS built Aurora on MySQL and not MariaDB. There are numerous possible reasons, but it seems like an important data point to consider.