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Fixed #18116 -- Raised minimum MySQL version officially suported to 5.0.3.

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Thanks Carl, Claude and Anssi for discussion and patch review.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@17921 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Ramiro Morales 2012-04-21 03:04:10 +00:00
parent 53fb45c6d8
commit 4536359887
4 changed files with 33 additions and 72 deletions
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35
docs/ref/databases.txt
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@ -122,30 +122,23 @@ lookups that use the ``LIKE`` operator in their SQL, as is done with the
MySQL notes
===========
Django expects the database to support transactions, referential integrity, and
Unicode (UTF-8 encoding). Fortunately, MySQL_ has all these features as
available as far back as 3.23. While it may be possible to use 3.23 or 4.0,
you'll probably have less trouble if you use 4.1 or 5.0.
Version support
---------------
MySQL 4.1
---------
`MySQL 4.1`_ has greatly improved support for character sets. It is possible to
set different default character sets on the database, table, and column.
Previous versions have only a server-wide character set setting. It's also the
first version where the character set can be changed on the fly. 4.1 also has
support for views, but Django currently doesn't use views.
MySQL 5.0
---------
Django supports MySQL 5.0.3 and higher.
`MySQL 5.0`_ adds the ``information_schema`` database, which contains detailed
data on all database schema. Django's ``inspectdb`` feature uses this
``information_schema`` if it's available. 5.0 also has support for stored
procedures, but Django currently doesn't use stored procedures.
data on all database schema. Django's ``inspectdb`` feature uses this feature.
.. versionchanged:: 1.5
The minimum version requirement of MySQL 5.0.3 was set in Django 1.5.
Django expects the database to support Unicode (UTF-8 encoding) and delegates to
it the task of enforcing transactions and referential integrity. It is important
to be aware of the fact that the two latter ones aren't actually enforced by
MySQL when using the MyISAM storage engine, see the next section.
.. _MySQL: http://www.mysql.com/
.. _MySQL 4.1: http://dev.mysql.com/doc/refman/4.1/en/index.html
.. _MySQL 5.0: http://dev.mysql.com/doc/refman/5.0/en/index.html
Storage engines
@ -381,10 +374,6 @@ for the field. This affects :class:`~django.db.models.CharField`,
:class:`~django.db.models.SlugField` and
:class:`~django.db.models.CommaSeparatedIntegerField`.
Furthermore, if you are using a version of MySQL prior to 5.0.3, all of those
column types have a maximum length restriction of 255 characters, regardless
of whether ``unique=True`` is specified or not.
DateTime fields
~~~~~~~~~~~~~~~