So, I have an app deployed on Heroku, and I'm trying to populate the database on the app through a script I wrote. I have the database in a text file, and the script runs through the file and populates the database. I don't want to push the database file to the heroku server, since it's a very large file. 

Is there any way to do this on Heroku? It works fine locally, but I can't get it to work on the Heroku server. 

I've tried 

```
 heroku run rails runner PATH/TO/SCRIPT LOCAL/PATH/TO/DATABASE --app my_app

```

to no avail.