[1.0.X] Fixed a couple of mistaken bits of the docs in [10312]

PostgreSQL notes

================

PostgreSQL 8.2 to 8.2.4

-----------------------

The implementation of the population statistics aggregates ``STDDEV_POP`` and

``VAR_POP`` that shipped with PostgreSQL 8.2 to 8.2.4 are `known to be

faulty`_. Users of these releases of PostgreSQL are advised to upgrade to

`Release 8.2.5`_ or later. Django will raise a ``NotImplementedError`` if you

attempt to use the ``StdDev(sample=False)`` or ``Variance(sample=False)``

aggregate with a database backend that falls within the affected release range.

.. _known to be faulty: http://archives.postgresql.org/pgsql-bugs/2007-07/msg00046.php

.. _Release 8.2.5: http://developer.postgresql.org/pgdocs/postgres/release-8-2-5.html

Transaction handling

---------------------

SQLite 3.3.6 or newer strongly recommended

------------------------------------------

Versions of SQLite 3.3.5 and older contains the following bugs:

 * A bug when `handling`_ ``ORDER BY`` parameters. This can cause problems when

   you use the ``select`` parameter for the ``extra()`` QuerySet method. The bug

   can be identified by the error message ``OperationalError: ORDER BY terms

   must not be non-integer constants``.

 * A bug when handling `aggregation`_ together with DateFields and

   DecimalFields.

Versions of SQLite 3.3.5 and older contains a bug when `handling`_ ``ORDER BY``

parameters. This can cause problems when you use the ``select`` parameter for

the ``extra()`` QuerySet method. The bug can be identified by the error message

``OperationalError: ORDER BY terms must not be non-integer constants``.

.. _handling: http://www.sqlite.org/cvstrac/tktview?tn=1768

.. _aggregation: http://code.djangoproject.com/ticket/10031

SQLite (e.g. the official binary distribution of Python 2.5 for Windows, 2.5.4

as of this writing, includes SQLite 3.3.4).

As described :ref:`below<using-newer-versions-of-pysqlite>`, this can be solved

by downloading and installing a newer version of ``pysqlite2``

(``pysqlite-2.x.x.win32-py2.5.exe`` in the described case) that includes and

uses a newer version of SQLite. Python 2.6 for Windows ships with a version of

SQLite that is not affected by these issues.

Version 3.5.9

-------------

3.6.3 (released September 22, 2008) or later, or downgrade to an earlier

version of SQLite.

.. _using-newer-versions-of-pysqlite:

Using newer versions of the SQLite DB-API 2.0 driver

----------------------------------------------------

.. versionadded:: 1.1

For versions of Python 2.5 or newer that include ``sqlite3`` in the standard

library Django will now use a ``pysqlite2`` interface in preference to

``sqlite3`` if it finds one is available.

This provides the ability to upgrade both the DB-API 2.0 interface or SQLite 3

itself to versions newer than the ones included with your particular Python

binary distribution, if needed.

.. _oracle-notes:

Oracle notes