您应该使用-无所有者选项，这会停止 pg_restore 尝试将对象的所有权设置为原始所有者。相反，对象将由-role

You should use the --no-owner option, this stops pg_restore trying to set the ownership of the objects to the original owner. Instead the objects will be owned by the user specified by --role

createdb -p 5433 -T template0 db_name 
pg_restore -p 5433 --no-owner --role=owner2 -d db_name db_name.dump

pg_restore文档