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Fixed #31578 -- Dropped support for MySQL 5.6.

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Mariusz Felisiak 2020-05-19 10:56:39 +02:00 • committed by GitHub
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17
docs/ref/databases.txt
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@ -300,7 +300,7 @@ MySQL notes
Version support
---------------
Django supports MySQL 5.6 and higher.
Django supports MySQL 5.7 and higher.
Django's ``inspectdb`` feature uses the ``information_schema`` database, which
contains detailed data on all database schemas.
@ -479,11 +479,11 @@ Several other `MySQLdb connection options`_ may be useful, such as ``ssl``,
Setting ``sql_mode``
~~~~~~~~~~~~~~~~~~~~
From MySQL 5.7 onwards and on fresh installs of MySQL 5.6, the default value of
the ``sql_mode`` option contains ``STRICT_TRANS_TABLES``. That option escalates
warnings into errors when data are truncated upon insertion, so Django highly
recommends activating a `strict mode`_ for MySQL to prevent data loss (either
``STRICT_TRANS_TABLES`` or ``STRICT_ALL_TABLES``).
From MySQL 5.7 onwards, the default value of the ``sql_mode`` option contains
``STRICT_TRANS_TABLES``. That option escalates warnings into errors when data
are truncated upon insertion, so Django highly recommends activating a
`strict mode`_ for MySQL to prevent data loss (either ``STRICT_TRANS_TABLES``
or ``STRICT_ALL_TABLES``).
.. _strict mode: https://dev.mysql.com/doc/refman/en/sql-mode.html#sql-mode-strict
@ -605,9 +605,8 @@ specification without a key length".
Fractional seconds support for Time and DateTime fields
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
MySQL 5.6.4 and later can store fractional seconds, provided that the
column definition includes a fractional indication (e.g. ``DATETIME(6)``).
Earlier versions do not support them at all.
MySQL can store fractional seconds, provided that the column definition
includes a fractional indication (e.g. ``DATETIME(6)``).
Django will not upgrade existing columns to include fractional seconds if the
database server supports it. If you want to enable them on an existing database,