#27683: Change default transaction isolation level to READ COMMITTED on MySQL
-------------------------------------+-------------------------------------
     Reporter:  Shai Berger          |                    Owner:  nobody
         Type:                       |                   Status:  new
  Cleanup/optimization               |
    Component:  Database layer       |                  Version:  master
  (models, ORM)                      |
     Severity:  Normal               |               Resolution:
     Keywords:                       |             Triage Stage:  Accepted
    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 Shai Berger):

 So, with respect to the option to use checks and deprecation warnings:

 1) We can deprecate whatever we like whenever we like, the LTS limitation
 is only about removing deprecation shims in the same major version (so,
 shim introduced in 1.11 **can** be removed in 2.1).
 2) Annoyance stands, so I think the correct path is at least to minimize
 it by explicitly supporting isolation-level in `OPTIONS`. That's also the
 easy route (both for users and implementation) to deprecation.

--
Ticket URL: <https://code.djangoproject.com/ticket/27683#comment:6>
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