Dump Heroku Postgres DB and load locally into postgres

restore-heroku-db-dump.locally.txt

Get the Heroku db as detailed here:
http://devcenter.heroku.com/articles/pgbackups#exporting_via_a_backup

$ heroku pg:backups:capture # outputs backup_num in the last line
$ heroku pg:backups:url <backup_num>  #=> backup_url
$ curl -o /tmp/latest.dump <backup_url>

Then locally do:
$ pg_restore --verbose --clean --no-acl --no-owner -h localhost -U myuser -d mydb /tmp/latest.dump

(your database must exist before can do this)