--skip-migration-test option on 12 release

I would like to know if there is still a way to skip the migration test on nextcloud 12 release.

I’ve seen that “–skip-migration-test” is not available since 10 release. This functionnality really disapeared?

Yes. → --skip-migration-test gives a Symfony\Component\Console\Exception\RuntimeException · Issue #3616 · nextcloud/server · GitHub

So, why have I still a message like this while I’m upgrading my nexctloud instance? Upgrade: Insufficent privilege for pg_namespace relation

Why Nextcloud need to access to pg_namespace postgresql table just for upgrading?