#35416: Removing a primary_key field causes a migration crash
-----------------------------+--------------------------------------
     Reporter:  Sarah Boyce  |                    Owner:  nobody
         Type:  Bug          |                   Status:  new
    Component:  Migrations   |                  Version:  dev
     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
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Comment (by Simon Charette):

 I would qualify this as a duplicate of #22997 as changing a model from

 {{{#!python
 class MySimpleModel(models.Model):
     some_pk = models.IntegerField(primary_key=True)
 }}}

 to

 {{{#!python
 class MySimpleModel(models.Model):
     pass
 }}}

 Is exactly ''removing an explicit primary key''.

 The ticket also describes the questioner asking about providing a default
 value.

 I think that your first instinct was right, this is the same issue which
 is not specific to Postgres.
-- 
Ticket URL: <https://code.djangoproject.com/ticket/35416#comment:2>
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