#29229: QuerySet.values_list() combined with .extra() or .annotate() may produce
wrong .union()
-------------------------------------+-------------------------------------
     Reporter:  master               |                    Owner:  nobody
         Type:  Bug                  |                   Status:  closed
    Component:  Database layer       |                  Version:  1.11
  (models, ORM)                      |
     Severity:  Release blocker      |               Resolution:  fixed
     Keywords:  union values_list    |             Triage Stage:  Ready for
                                     |  checkin
    Has patch:  1                    |      Needs documentation:  0
  Needs tests:  0                    |  Patch needs improvement:  0
Easy pickings:  0                    |                    UI/UX:  0
-------------------------------------+-------------------------------------

Comment (by Tim Graham <timograham@…>):

 In [changeset:"9123fd75caa595c018d4121575cbada80226b4f2" 9123fd7]:
 {{{
 #!CommitTicketReference repository=""
 revision="9123fd75caa595c018d4121575cbada80226b4f2"
 [2.0.x] Fixed #29229 -- Fixed column mismatch crash when combining two
 annotated values_list() querysets with union(), difference(), or
 intersection().

 Regression in 7316720603821ebb64dfe8fa592ba6edcef5f3e.

 Backport of a0c03c62a8ac586e5be5b21393c925afa581efaf from master
 }}}

-- 
Ticket URL: <https://code.djangoproject.com/ticket/29229#comment:5>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.

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