Bruce Momjian <bruce@momjian.us> writes:
> On Thu, Jul 29, 2021 at 06:19:56PM -0400, Tom Lane wrote:
>> I suggested awhile ago that pg_upgrade should look into
>> pg_available_extensions in the new cluster, and prepare
>> a script with ALTER EXTENSION UPDATE commands for
>> anything that's installed but is not the (new cluster's)
>> default version.
> I can do that, but I would think a pg_dump/restore would also have this
> issue, so should this be more generic?
No, because dump/restore does not have this issue. Regular pg_dump just
issues "CREATE EXTENSION" commands, so you automatically get the target
server's default version.
regards, tom lane