Hi Otto! 
 
Do you agree it makes sense to have a new error that can tell clients
to go to another server (similar to how HTTP 301 redirects work)?

I would very much like to hear your opinion on this one. If you are in
agreement, Daniel can spend more time polishing the feature and also
taking care of implementation details such as preventing redirect
loops and other corner cases.

If we want to implement redirection via error message, then the client needs an option to enable redirecting, it should be disabled by default.
The current PR  introduces a new vulnerability, since the client redirects automatically under the hood.

/Georg
--
Georg Richter, Staff Software Engineer
Client Connectivity
MariaDB Corporation Ab