Note: This management command is in beta. Use with care, and make sure to test thoroughly before implementing.

Allows the user to choose a model to de-duplicate and a field on which to de-duplicate model instances. Provides an interactive session with the user to select the model to de-duplicate and the field on which to de-duplicate model instances. After merging model instances to one instance, deletes the merged model instances. Use with care!

With django-extensions installed you merge model instances using the merge_model_instances command:

# Delete leftover migrations from the first squashed migration found in myapp
$ ./manage.py merge_model_instances