Author: jacob Date: 2009-03-31 20:36:44 -0500 (Tue, 31 Mar 2009) New Revision: 10311
Modified: django/trunk/docs/ref/databases.txt django/trunk/docs/topics/install.txt Log: Fixed #10031: updated SQLite database docs to more strongly indicate the problems with versions before 3.3.6. Thanks, ramiro. Modified: django/trunk/docs/ref/databases.txt =================================================================== --- django/trunk/docs/ref/databases.txt 2009-04-01 01:34:49 UTC (rev 10310) +++ django/trunk/docs/ref/databases.txt 2009-04-01 01:36:44 UTC (rev 10311) @@ -351,44 +351,44 @@ .. _documented at sqlite.org: http://www.sqlite.org/faq.html#q18 -Versions prior to 3.3.6 ------------------------- +SQLite 3.3.6 or newer strongly recommended +------------------------------------------ -Versions of SQLite 3.3.5 and older `contain 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``. The -problem can be solved updating SQLite to version 3.3.6 or newer, possibly also -updating the ``pysqlite2`` Python module in the process. +Versions of SQLite 3.3.5 and older contains the following bugs: -.. _contain a bug: http://www.sqlite.org/cvstrac/tktview?tn=1768 + * 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``. -This has a very low impact because 3.3.6 was released in April 2006, so most -current binary distributions for different platforms include newer version of -SQLite usable from Python through either the ``pysqlite2`` or the ``sqlite3`` -modules. + * A bug when handling `aggregation`_ together with DateFields and + DecimalFields. -However, in the case of Windows, the official binary distribution of the stable -release of Python 2.5 (2.5.2, as of this writing) includes SQLite 3.3.4, so the bug can -make itself evident in that platform. There are (as of Django 1.0) even three -tests in the Django test suite that will fail when run under this setup. As -described above, this can be solved by downloading and installing a newer -version of ``pysqlite2`` (``pysqlite-2.x.x.win32-py2.5.exe``) that includes and -uses a newer version of SQLite. Python 2.6 ships with a newer version of -SQLite and is not affected by this issue. +.. _handling: http://www.sqlite.org/cvstrac/tktview?tn=1768 +.. _aggregation: http://code.djangoproject.com/ticket/10031 -If you are on such a platform and find yourself needing to update -``pysqlite``/SQLite, you will also need to manually modify the -``django/db/backends/sqlite3/base.py`` file in the Django source tree so it -attempts to import ``pysqlite2`` before ``sqlite3`` and so it can take -advantage of the new ``pysqlite2``/SQLite versions. +SQLite 3.3.6 was released in April 2006, so most current binary distributions +for different platforms include newer version of SQLite usable from Python +through either the ``pysqlite2`` or the ``sqlite3`` modules. +However, some platform/Python version combinations include older versions of +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). There are (as of Django 1.1) even +some tests in the Django test suite that will fail when run under this setup. + +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 ------------- -The Ubuntu "Intrepid Ibex" SQLite 3.5.9-3 package contains a bug that causes -problems with the evaluation of query expressions. If you are using Ubuntu -"Intrepid Ibex", you will need to find an alternate source for SQLite +The Ubuntu "Intrepid Ibex" (8.10) SQLite 3.5.9-3 package contains a bug that +causes problems with the evaluation of query expressions. If you are using +Ubuntu "Intrepid Ibex", you will need to update the package to version +3.5.9-3ubuntu1 or newer (recommended) or find an alternate source for SQLite packages, or install SQLite from source. At one time, Debian Lenny shipped with the same malfunctioning SQLite 3.5.9-3 @@ -411,6 +411,21 @@ 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 Modified: django/trunk/docs/topics/install.txt =================================================================== --- django/trunk/docs/topics/install.txt 2009-04-01 01:34:49 UTC (rev 10310) +++ django/trunk/docs/topics/install.txt 2009-04-01 01:36:44 UTC (rev 10311) @@ -80,7 +80,7 @@ * If you're using SQLite and either Python 2.3 or Python 2.4, you'll need pysqlite_. Use version 2.0.3 or higher. Python 2.5 ships with an SQLite wrapper in the standard library, so you don't need to install anything extra - in that case. + in that case. Please read the SQLite backend :ref:`notes<sqlite-notes>`. * If you're using Oracle, you'll need a copy of cx_Oracle_, but please read the database-specific notes for the @@ -106,7 +106,7 @@ .. _compiled Windows version: http://stickpeople.com/projects/python/win-psycopg/ .. _MySQLdb: http://sourceforge.net/projects/mysql-python .. _SQLite: http://www.sqlite.org/ -.. _pysqlite: http://initd.org/pub/software/pysqlite/ +.. _pysqlite: http://pysqlite.org/ .. _cx_Oracle: http://cx-oracle.sourceforge.net/ .. _Oracle: http://www.oracle.com/ @@ -132,14 +132,14 @@ The location of the ``site-packages`` directory depends on the operating system, and the location in which Python was installed. To find out your system's ``site-packages`` location, execute the following: - + .. code-block:: bash python -c "from distutils.sysconfig import get_python_lib; print get_python_lib()" (Note that this should be run from a shell prompt, not a Python interactive prompt.) - + .. _install-django-code: Install the Django code @@ -190,7 +190,7 @@ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. admonition:: Tracking Django development - + If you decide to use the latest development version of Django, you'll want to pay close attention to `the development timeline`_, and you'll want to keep an eye on `the list of @@ -219,7 +219,7 @@ 3. Next, make sure that the Python interpreter can load Django's code. There are various ways of accomplishing this. One of the most convenient, on Linux, Mac OSX or other Unix-like systems, is to use a symbolic link: - + .. code-block:: bash ln -s `pwd`/django-trunk/django SITE-PACKAGES-DIR/django @@ -248,7 +248,7 @@ 4. On Unix-like systems, create a symbolic link to the file ``django-trunk/django/bin/django-admin.py`` in a directory on your system path, such as ``/usr/local/bin``. For example: - + .. code-block:: bash ln -s `pwd`/django-trunk/django/bin/django-admin.py /usr/local/bin --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django updates" group. To post to this group, send email to django-updates@googlegroups.com To unsubscribe from this group, send email to django-updates+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/django-updates?hl=en -~----------~----~----~----~------~----~------~--~---
