#26225: Coalesce Multiple Calls to order_by with Same Arguments
-------------------------------------+-------------------------------------
     Reporter:  cancan101            |                    Owner:  nobody
         Type:                       |                   Status:  new
  Cleanup/optimization               |
    Component:  Database layer       |                  Version:  1.9
  (models, ORM)                      |
     Severity:  Normal               |               Resolution:
     Keywords:                       |             Triage Stage:
                                     |  Unreviewed
    Has patch:  0                    |      Needs documentation:  0
  Needs tests:  0                    |  Patch needs improvement:  0
Easy pickings:  0                    |                    UI/UX:  0
-------------------------------------+-------------------------------------

Comment (by mjtamlyn):

 Yes, this would make significant unnecessary complexity in my opinion. The
 ORM currently abides by a simple rule that chaining on another call
 creates a new queryset. We even explicitly use this with  `all()` in
 `forms.ModelChoiceField` - and that's an API which can ''never'' change
 the queryset.

 It's worth noting that you could add this kind of behaviour to a custom
 queryset class, but you would be inspecting private properties of the
 underlying query object to get what you want. Looking at the original
 ticket you opened, how I would approach that sort of situation where a you
 have code which may have a prefetched query or may not is to use `to_attr`
 - prefetch to `_ordered_children` and then have a `ordered_children`
 method which returns `_ordered_children` if it exists, or runs the query
 if not.

--
Ticket URL: <https://code.djangoproject.com/ticket/26225#comment:2>
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