MariaDB and MySQL have different goals here - MariaDB wants to offer drop-in compatibility for Oracle. MySQL has a core-audience of OLTP apps, that are mostly

MariaDB and MySQL have different goals here - MariaDB wants to offer drop-in compatibility for Oracle. MySQL has a core-audience of OLTP apps, that are mostly developed for it specifically. When designing features, I think it's important to make sure they can benefit the highest number of users possible. For this one, I don't think it can ever be the default because of the burden of backward compatibility. So it is difficult to justify developing it.