On 7/29/21 12:44 PM, David G. Johnston wrote:
... - but at present pg_upgrade simply doesn't care and hopes that the extension author's documentation deals with these possibilities in a sane manner.
pg_upgrade is not able to address this in a guaranteed, consistent fashion. At this point there is no way to even make sure that a 3rd party extension provides the scripts needed to upgrade from one extension version to the next. We don't have the mechanism to upgrade the same extension version from one server version to the next, in case there are any modifications in place necessary.
How exactly do you envision that we, the PostgreSQL project, make sure that extension developers provide those mechanisms in the future?
Regards, Jan -- Jan Wieck
