Supporting pg freeze in pg_dump, restore.

H, hackersi! Tell me, please Do I understand correctly that pg_dump/pg_restore has
not been taught to do COPY FREEZE when filling data? The last mention of
the plans was Bruce in 2013: https://postgrespro.com/list/thread-id/1815657
https://paquier.xyz/postgresql-2/postgres-9-3-feature-highlight-copy-freeze/
Best regards, Stepan Neretin.