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[3.0.x] Fixed #31689 -- Doc'd caveat about using bulk_create()'s ignore_conflicts on MariDB and MySQL.

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Backport of 69e0d9c553bb55dde8d7d1d479a78bfa7093f406 from master
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Tobias Krönke 2020-06-12 14:54:23 +02:00 committed by Mariusz Felisiak
parent b61af177ee
commit 0afe8ba2d6
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docs/ref/models/querysets.txt
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@ -2100,6 +2100,17 @@ that fail constraints such as duplicate unique values. Enabling this parameter
disables setting the primary key on each model instance (if the database
normally supports it).
.. warning::
On MySQL and MariaDB, setting the ``ignore_conflicts`` parameter to
``True`` turns certain types of errors, other than duplicate key, into
warnings. Even with Strict Mode. For example: invalid values or
non-nullable violations. See the `MySQL documentation`_ and
`MariaDB documentation`_ for more details.
.. _MySQL documentation: https://dev.mysql.com/doc/refman/en/sql-mode.html#ignore-strict-comparison
.. _MariaDB documentation: https://mariadb.com/kb/en/ignore/
.. versionchanged:: 2.2
The ``ignore_conflicts`` parameter was added.