Proposed F19 Feature: Replace MySQL with MariaDB

[Bill Nottingham]

Tom Lane (tgl at redhat.com) said: 
> Yes, that's the general idea --- any dependencies on mysql should result
> in installing mariadb, unless the user takes specific action to get
> mysql instead.  Ideally we'd just do the standard Provides/Obsoletes
> dance for replacing one package with another, but I'm not quite sure how
> that should work if we still want original mysql to be installable.  Any
> thoughts from RPM experts would be welcome.
> 
> (If the compatibility testing goes *really* smoothly, maybe we could
> just drop the requirement for original mysql to still be available,
> in which case it reduces to the standard package-replacement problem.
> But I'm not prepared to bet on that quite yet.)

Honestly, I'd be curious as to whether we could get all the compatibility
testing done early enough, and packages changed, such that we could consider
dropping MySQL. It's just... cleaner.

Bill