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Code Issues 32 Releases Wiki Activity

Added support for savepoints to the MySQL DB backend.

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MySQL provides the savepoint functionality starting with version 5.0.3
when using the MyISAM storage engine.

Thanks lamby for the report and patch.

Fixes #15507.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@17341 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Ramiro Morales
2012-01-05 00:45:31 +00:00
parent bc63ba700a
commit 8312b85c97
4 changed files with 80 additions and 15 deletions
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3
docs/releases/1.4.txt
View File

@@ -553,6 +553,9 @@ Django 1.4 also includes several smaller improvements worth noting:
password reset mechanism and making it available is now much easier. For
details, see :ref:`auth_password_reset`.
* The MySQL database backend can now make use of the savepoint feature
implemented by MySQL version 5.0.3 or newer with the InnoDB storage engine.
Backwards incompatible changes in 1.4
=====================================

13
docs/topics/db/transactions.txt
View File

@@ -225,11 +225,14 @@ transaction middleware, and only modify selected functions as needed.
Savepoints
==========
A savepoint is a marker within a transaction that enables you to roll back
part of a transaction, rather than the full transaction. Savepoints are
available to the PostgreSQL 8 and Oracle backends. Other backends will
provide the savepoint functions, but they are empty operations - they won't
actually do anything.
A savepoint is a marker within a transaction that enables you to roll back part
of a transaction, rather than the full transaction. Savepoints are available to
the PostgreSQL 8, Oracle and MySQL (version 5.0.3 and newer, when using the
InnoDB storage engine) backends. Other backends will provide the savepoint
functions, but they are empty operations - they won't actually do anything.
.. versionchanged:: 1.4
Savepoint support when using the MySQL backend was added in Django 1.4
Savepoints aren't especially useful if you are using the default
``autocommit`` behavior of Django. However, if you are using