Is there a Heroku way to backup / restore a standalone postgres database at https://postgres.heroku.com/ apart from using pg_dump / pg_restore ? The database is not attached to any app.
I can create a dump using
pg_dump --verbose -F c -b -h hostname -p port -U username -f "backup.dump" database_name
and restore it using
pg_restore --verbose --clean --no-acl --no-owner -h hostname -p port -U username -d database_name "backup.dump"
Looks when you create a new database, heroku automatically creates an app for you. Check it with heroku list So you can restore using the empty app.
heroku pgbackups:restore DATABASE 'dumped-db-secure-url' --app heroku-postgres-xxx
来源：https://stackoverflow.com/questions/18449893/how-to-backup-restore-standalone-heroku-postgres-database