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| author | Aymeric Augustin <aymeric.augustin@m4x.org> | 2013-03-24 13:08:29 +0100 |
|---|---|---|
| committer | Aymeric Augustin <aymeric.augustin@m4x.org> | 2013-03-24 13:13:19 +0100 |
| commit | ae417dd4d569669e8e1d8f15e643c6ba0820aafe (patch) | |
| tree | 14b8e88a6c355e1903072d5c00d65907b72afeb4 /docs | |
| parent | f5dbb566ee07bf3328015c70574b832052b4ebb7 (diff) | |
Added release notes for 4b31a6a9.
Thanks Florian for reporting this omission.
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/releases/1.6.txt | 23 | ||||
| -rw-r--r-- | docs/topics/db/transactions.txt | 4 |
2 files changed, 26 insertions, 1 deletions
diff --git a/docs/releases/1.6.txt b/docs/releases/1.6.txt index 16039851c2..db9c597490 100644 --- a/docs/releases/1.6.txt +++ b/docs/releases/1.6.txt @@ -66,6 +66,12 @@ UTC. This limitation was lifted in Django 1.6. Use :meth:`QuerySet.datetimes() <django.db.models.query.QuerySet.datetimes>` to perform time zone aware aggregation on a :class:`~django.db.models.DateTimeField`. +Support for savepoints in SQLite +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +Django 1.6 adds support for savepoints in SQLite, with some :ref:`limitations +<savepoints-in-sqlite>`. + ``BinaryField`` model field ~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -189,12 +195,29 @@ Backwards incompatible changes in 1.6 New transaction management model ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +Behavior changes +^^^^^^^^^^^^^^^^ + Database-level autocommit is enabled by default in Django 1.6. While this doesn't change the general spirit of Django's transaction management, there are a few known backwards-incompatibities, described in the :ref:`transaction management docs <transactions-upgrading-from-1.5>`. You should review your code to determine if you're affected. +Savepoints and ``assertNumQueries`` +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +The changes in transaction management may result in additional statements to +create, release or rollback savepoints. This is more likely to happen with +SQLite, since it didn't support savepoints until this release. + +If tests using :meth:`~django.test.TestCase.assertNumQueries` fail because of +a higher number of queries than expected, check that the extra queries are +related to savepoints, and adjust the expected number of queries accordingly. + +Autocommit option for PostgreSQL +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + In previous versions, database-level autocommit was only an option for PostgreSQL, and it was disabled by default. This option is now :ref:`ignored <postgresql-autocommit-mode>` and can be removed. diff --git a/docs/topics/db/transactions.txt b/docs/topics/db/transactions.txt index 697dee49c0..db58ca9627 100644 --- a/docs/topics/db/transactions.txt +++ b/docs/topics/db/transactions.txt @@ -372,11 +372,13 @@ The following example demonstrates the use of savepoints:: Database-specific notes ======================= +.. _savepoints-in-sqlite: + Savepoints in SQLite -------------------- While SQLite ≥ 3.6.8 supports savepoints, a flaw in the design of the -:mod:`sqlite3` makes them hardly usable. +:mod:`sqlite3` module makes them hardly usable. When autocommit is enabled, savepoints don't make sense. When it's disabled, :mod:`sqlite3` commits implicitly before savepoint statements. (In fact, it |
