Hello
> If we don't have this for SET NOT NULL then we should either add it or
> remove the one from ATTACH PARTITION.
I proposed to lower report level to debug1 in a separate thread: https://www.postgresql.org/message-id/4859321552643736%40myt5-02b80404fd9e.qloud-c.yandex.net
Possible better would be link it.
regards, Sergei