#27222: Refresh fields that are expressions after Model.save()
-------------------------------------+-------------------------------------
     Reporter:  holvianssi           |                    Owner:  nobody
         Type:  New feature          |                   Status:  new
    Component:  Database layer       |                  Version:  1.10
  (models, ORM)                      |
     Severity:  Normal               |               Resolution:
     Keywords:                       |             Triage Stage:  Accepted
    Has patch:  1                    |      Needs documentation:  0
  Needs tests:  0                    |  Patch needs improvement:  0
Easy pickings:  0                    |                    UI/UX:  0
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Comment (by charettes):

 This might also be related to #21454 or at least to the implementation
 proposed in it's [https://github.com/django/django/pull/5904 PR] as we
 should really be using `RETURNING` on backends that support it instead of
 performing a second `SELECT` to fetch the database generated fields.

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Ticket URL: <https://code.djangoproject.com/ticket/27222#comment:4>
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