Django: What are the best practices to migrate a project from sqlite to PostgreSQL

Question

I need to migrate a complex project from sqlite to PostgreSQL. A lot of people seems to have problem with foreign keys, data truncature and so on...

• Is there a

Answer 1

Another way of doing this may be to use multiple databases.

http://docs.djangoproject.com/en/dev/topics/db/multi-db/

It is important you read this section.

http://docs.djangoproject.com/en/dev/topics/db/multi-db/#moving-an-object-from-one-database-to-another

From what I understand that means that provided there is no data in your new DB, from fixtures for example you could do

queryset = MyModel.objects.using("old-db").all()
for obj in queryset:
    obj.save(using="new-db")

Because that should preserve the primary keys I don't think there'd be any foreign key issues.