Postgresql Import dump with user dfferent from postgres - postgresql

Question

i'm tring to backup my database from production machine to a standby machine.
My production machine is a debian (unspecified version) distro
My standby machine is a ubuntu 20.10 distro
After some readings across the internet here is what i was able to accomplish
pg_dump -h 123.123.123.123 -p 5432 my_db > my_db.bak -> check
psql < createDateabase.sql -> check this make a simple drop/create database my_db owner my_db_backup;
psql < my_db.back -> check
so far so good
connect with my sqlworkbench to db -> check
use table imported -> ehm, not check
the problem is the ownership of the tables and sequeces. When imported, postgres is their owner but i want my_db_backup as owner insted.
I have tryed, as a workaround, to
alter table xxx OWNER TO my_db_backup; - > check for each table
alter sequence if exists xxx OWNER TO my_db_backup; -> it takes forever and it is unable to finish;
the command for the final stage (change ownership) is
psql < finalize.sql
and finalize.sql is
\connect my_db;
ALTER TABLE xxx OWNER TO my_db_backup;
ALTER SEQUENCE IF EXISTS seq_xxx OWNER TO my_db_backup; -- this takes forever
what i'm missing?
I would prefer to import directly with the right owner instead of altering owner after, but that's still acceptable as long as i can change all objects in my_db
tnx for the help

Answer 1

I was finally able to accomplish the import with a different user as follow
psql -U my_db_backup < my_db.bak
to avoid asking for password i had to make an entry in pg_hba.conf like this
local my_db my_db_backup trust
and to avoid request for password during the pg_dump i had to add this entry in my production machine
host my_db postgres 456.456.456.456/32 trust
where 456.456.456.456 id the ip of the standby machine.
i also had to change a bit the pg_dump to avoid errors for different user import
pg_dump -h 123.123.123.123 -p 5432 --no-owner --no-acl my_db > my_db.bak
so the complete script looks like
pg_dump -h 123.123.123.123 -p 5432 --no-owner --no-acl my_db > my_db.bak
psql < createDatabase.sql
psql -U my_db_backup < my_db.bak
EDIT: to make the script usable from any user there are a few things in need to be done
pg_dump -h 123.123.123.123 -p 5432 -U postgres --no-owner --no-acl -w my_db > my_db.bak
psql -U postgres < createDatabase.sql
psql -U my_db_backup < my_db.bak
Adding -U postgres is needed only because pg_dump try to login with the current user so if you are running the script as, for example, root pg_dump and psql will try to login as root and will obviously fail.
The other thing is the -w option that is needed to make pg_dump not ask for password.