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This is the exact same issue as refs #30408 but for creating a model with a constraint containing % escapes instead of column addition. All of these issues stem from a lack of SQL and parameters separation from the BaseConstraint DDL generating methods preventing them from being mixed with other parts of the schema alteration logic that do make use of parametrization on some backends (e.g. Postgres, MySQL for DEFAULT). Prior to the addition of Field.db_default and GeneratedField in 5.0 parametrization of DDL was never exercised on model creation so this is effectively a bug with db_default as the GeneratedField case was addressed by refs #35336. Thanks Julien Chaumont for the report and Mariusz Felisiak for the review. Backport of f359990e4909db8722820849d61a6f5724338723 from main.
====== Django ====== Django is a high-level Python web framework that encourages rapid development and clean, pragmatic design. Thanks for checking it out. All documentation is in the "``docs``" directory and online at https://docs.djangoproject.com/en/stable/. If you're just getting started, here's how we recommend you read the docs: * First, read ``docs/intro/install.txt`` for instructions on installing Django. * Next, work through the tutorials in order (``docs/intro/tutorial01.txt``, ``docs/intro/tutorial02.txt``, etc.). * If you want to set up an actual deployment server, read ``docs/howto/deployment/index.txt`` for instructions. * You'll probably want to read through the topical guides (in ``docs/topics``) next; from there you can jump to the HOWTOs (in ``docs/howto``) for specific problems, and check out the reference (``docs/ref``) for gory details. * See ``docs/README`` for instructions on building an HTML version of the docs. Docs are updated rigorously. If you find any problems in the docs, or think they should be clarified in any way, please take 30 seconds to fill out a ticket here: https://code.djangoproject.com/newticket To get more help: * Join the ``#django`` channel on ``irc.libera.chat``. Lots of helpful people hang out there. `Webchat is available <https://web.libera.chat/#django>`_. * Join the django-users mailing list, or read the archives, at https://groups.google.com/group/django-users. * Join the `Django Discord community <https://discord.gg/xcRH6mN4fa>`_. * Join the community on the `Django Forum <https://forum.djangoproject.com/>`_. To contribute to Django: * Check out https://docs.djangoproject.com/en/dev/internals/contributing/ for information about getting involved. To run Django's test suite: * Follow the instructions in the "Unit tests" section of ``docs/internals/contributing/writing-code/unit-tests.txt``, published online at https://docs.djangoproject.com/en/dev/internals/contributing/writing-code/unit-tests/#running-the-unit-tests Supporting the Development of Django ==================================== Django's development depends on your contributions. If you depend on Django, remember to support the Django Software Foundation: https://www.djangoproject.com/fundraising/