Comment # 1 on bug 960875 from Kristyna Streitova

Hello,

Please note that the server:database is a devel project and if the given
package is not in openSUSE:Factory (which mysql-community-server-57 is not),
it's not supported. 

Moreover, even mysql-community-server package (mysql 5.6) was recently dropped
from Tumbleweed in favour of MariaDB and it's not available anymore (more
information in the bug 1043328).

Because of these facts, I highly recommend switching from MySQL to MariaDB. I'm
afraid that if you want to use mysql-community-server-57 you will have to rely
on your or community fixes and submissions there.

Thanks for the understanding.