Question

I have an ordered table defined as following in model.py (Blog is another table):

class OrderedBlog(Blog):
  class Meta:
    ordering = ["-time_created"]
    proxy = True

If I try to do something like:

OrderedBlog.objects.filter(time_created__lt = a_specific_time)

Would this bring all entries of Blog in memory? Thanks!

Answer 1

No it wont. When you are going to iterate over the the queryset, then Django will start loading each element of the queryset into memory and instantiate it one at a time.

If you are concerned about memory usage you’d better go for Queryset.iterator() or retrieve only the fields you are interested in using only.