[Fedora-packaging] Upgrading databases as part of the RPM postinst script?

[Ray Van Dolson]

On Tue, May 08, 2007 at 11:35:46PM +0300, Maxim Veksler wrote:
> >I would recommend not even attempting to do that kind of thing.  How
> >do you know the database is running at the time, or even that it's on
> >the same machine?
> >
> 
> I check, or ask the user.
> 
> I think that my questions is more of "how to do this" then who/when to
> do this. I think we can agree that if my databases changes between
> version and I wish to allow my users to continue running with their
> existing data I need to provide some method for them to upgrade their
> scheme while not loosing their data.
> 
> Pointers on the above would be very welcome.
> Thank you.
> 

Perhaps providing migration/conversion/update scripts as part of your
new RPM that the user is then instructed to run manually?

I guess this could potentially mean things won't work correctly if the
udpate happened automatically and the user wasn't around.

Ray