[debian-mysql] Bug#990708: Bug#990708: mariadb-server-10.5: upgrade problems due to galera-3 -> galera-4 switch

[Otto Kekäläinen]

> How would one use galera-3 in bullseye? There is no mariadb-10.3 in
> buster, only 10.5 which depends on galera-4 which blocks galera-3 from
> being installed.
> (Even if galera-3 gets removed from bullseye, it will stay in buster
> (and sid if you want))

One would use upstream repositories for MariaDB 10.3 on Bullseye (but
get Galera from Debian proper).

> What do you need the virtual galera package for? My gut feeling is that
> this is the source of our problems because it forms some kind of a
> conflicts cycle.

Yes, we probably don't need the virtual package for Galera. I guess it
has been around since the start and was used because all existing
packaging at that time form upstream Codership and Percona had such a
package, and the replacement had to offer it as well. I think that by
now in 2021 we could probably drop it.