Merge 1de1185a1f into 08ec276850

docs/tutorial/4-authentication-and-permissions.md

@@ -48,6 +48,8 @@ Normally we'd create a database migration in order to do that, but for the purpo
     python manage.py makemigrations snippets
     python manage.py migrate
     
+Note: If you're using PostgreSQL, you should drop your database with the `DROP DATABASE your_db_name` SQL command instead of deleting the db.sqlite3 file.
+
 You might also want to create a few different users, to use for testing the API.  The quickest way to do this will be with the `createsuperuser` command.
 
     python manage.py createsuperuser