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Thomas Goirand wrote:
> Hi,
>
> I want to make an update to libapache-mod-log-sql that needs some
> maintenances in it's SQL databases if we need to upgrade. Namely, it
> needs some table structure upgrades.
>
> I know many "hacks" to know that I'm upgrading (like doing dpkg -l,
> etc.), but what is the correct/policy way to know from what version my
> package is upgrading, so my postinst can run smoothly?
>
> Thomas Goirand
>
>
IANADD.
Policy 6.6.3 says
"If the package is being upgraded, call:
new-preinst upgrade old-version
"
Is it what you are seeking?
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