[debian-mysql] Bug#917872: Automatically uninstall/reinstall Mroonga plugin on upgrade

[Kentaro Hayashi]

On Mon, 31 Dec 2018 10:50:44 +0200 =?UTF-8?B?T3R0byBLZWvDpGzDpGluZW4=?= <otto at debian.org> wrote:
> Package: mariadb-plugin-mroonga
> Version: 10.3.11-1
> Severity: normal
> Tags: newcomer
> 
> The postinst of Mroong install is, and the postrm uninstalls it
> correctly. There is however no code that would on a
> postinst/preinst/upgrade scenario reinstall the plugin if the path has
> changed (eg. as it does on in MariaDB 10.3 when the soname path
> updates from libmariadb18 to libmaridb19).

Just out of curiosity, what is the best way to detect 
soname path updates in maintainer script?
If there is a similar package which treats this kind of issue, I want to know.