How to do an override of fields based on it's value in an aggregation query (join on multiple columns)

[Vladimir K.]

Hi 

My case is fully depicted here: https://stackoverflow.com/questions/59991771/django-how-to-do-an-override-of-fields-based-on-its-value-in-an-aggregation-qu 

Any ideas? The next step would be to do a RawSQL but I think that it should be possible with the ORM.

Best regards and thanks in advance

Vladimir