Problems with heroku rake db:reset
Heroku, being a shared service is not allowing users the permissions to drop nor create databases - hence the error when running rake db:reset
Hence heroku pg:reset is present as a command to perform the reset of your database.
I got the same error I have fixed it by
heroku pg:reset DATABASE_URLheroku rake db:migrateAs per you error
Also your database.yml point postgres user to connect database in heroku
it should not be postgres as a user in production mode.
so
Active Record 4.1+ Escape Valve
If you need need to connect to a different database than the ENV['DATABASE_URL'] Rails 4.1+ supports a URL key in the database.yml file that will take precedence.
production: url: <%= ENV["SOME_OTHER_URL"] %>