=?utf-8?Q?Paul_F=C3=B6rster?= <paul.foerster@xxxxxxxxx> writes: > seems, I found some kind of solution: > - before running "pg_upgrade --check -k": > drop extension plpythonu; > - run pg_upgrade > - after the upgrade: > create extension plpython3u; > Is this the correct way? If you had plpythonu installed before, that's a plausible thing to do. (There was discussion some time ago about making the python-2-to-3 transition less painful for users, but we failed to come to any consensus about how; so manual fixes like this are going to be needed for a lot of people.) However, I don't understand how "drop extension plpythonu" worked for you, given your previous query showing that that extension wasn't installed. regards, tom lane
