#33768: MySQL ordering of nulls last/first is broken in combination with UNION
-------------------------------------+-------------------------------------
     Reporter:  Florian Apolloner    |                    Owner:  Simon
                                     |  Charette
         Type:  Bug                  |                   Status:  closed
    Component:  Database layer       |                  Version:  dev
  (models, ORM)                      |
     Severity:  Normal               |               Resolution:  fixed
     Keywords:                       |             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 Mariusz Felisiak <felisiak.mariusz@…>):

 In [changeset:"f47fec31f8b51ad8fdc0a5d6805d0130f8700ca8" f47fec3]:
 {{{
 #!CommitTicketReference repository=""
 revision="f47fec31f8b51ad8fdc0a5d6805d0130f8700ca8"
 Refs #33768 -- Fixed ordering compound queries by NULLs on SQLite < 3.30.

 The lack of support for native nulls last/first on SQLite 3.28 and 3.29
 requires the compound query to be wrapped for emulation layer to work
 properly.
 }}}

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Ticket URL: <https://code.djangoproject.com/ticket/33768#comment:11>
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