gistfile1.sh

$ heroku pg:reset --db SHARED_DATABASE_URL
 !    The --db option has been deprecated
 !    Usage: heroku pg:reset [DATABASE]
# 怒られたので
$ heroku pg:reset SHARED_DATABASE_URL
SHARED_DATABASE_URL is deprecated, please use SHARED_DATABASE
----> Resetting SHARED_DATABASE (DATABASE_URL)

 !    WARNING: Potentially Destructive Action
 !    This command will affect the app: [アプリ名]
 !    To proceed, type "[アプリ名]" or re-run this command with --confirm [アプリ名]

> [アプリ名]
Resetting... done
$ heroku rake db:migrate