[Akonadi] [Bug 476617] postgresql16 fails to run after DB update from postgresql13 - errors from akonadictl start

[Christophe Marin]

https://bugs.kde.org/show_bug.cgi?id=476617

Christophe Marin <christophe at krop.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |WORKSFORME
             Status|REPORTED                    |RESOLVED
           Severity|critical                    |normal

--- Comment #3 from Christophe Marin <christophe at krop.fr> ---
(In reply to BingMyBong from comment #2)
> 
> I know very little about postgresql  so i have no idea why it started
> referencing that directory or file

If you didn't enable it yourself, you can just prevent it from starting on your
system (it won't affect akonadi):
sudo systemctl stop postgresql.service
sudo systemctl disable postgresql.service

> 
> > > QSqlDatabase: QPSQL driver not loaded
> > 
> > This looks more interesting. Is libQt5Sql5-postgresql installed on your
> > system?
> No, it wasn't.  I've now installed it and it works fine.  Would this file
> have been required by previous versions of postgresql?  If yes, i wonder how
> it got uninstalled.
> Do you know if I can uninstall postgresql 11, 12, 13, 14 and 15 with zypper
> and not remove libQt5Sql5-postgresql?

Yes, once your database is migrated and functional, you can uninstall old
versions.

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