Comment 9 for bug 1872002

So, as Dave Hibberd found out, the problem is that Ubuntu is shipping mysql-* as mysql-* and Debian is shipping mariadb-* as mysql-*.

See his original comment with more details here: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1073790#10

One possible Debian-side solution could be changing the virtual-mysql-client-core and virtual-mysql-server-core to mariadb-client-core and mariadb-server-core, default-mysql-server to mariadb-server and removing the default-mysql-server-core dependency. That would cause dependency issues on systems that already have mysql-server-8 installed, but since CQRLOG does not seem to work with mysql anymore (only with mariadb), it should not be a big problem, at least in my opinion.

The other possible solution would be to patch this in Ubuntu. However, I am not sure whether the CQRLOG package has any Ubuntu maintainers and also it would probably break auto-sync of the package from Debian.

CQRLOG should also fix their MySQL 8 support if possible. That would probably be the best solution.

It looks like that there sadly are not other possible fixes to this issue.