From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Sun, 16 Jun 2013 02:58:04 +0000 (-0400)
Subject: - changelog
X-Git-Tag: rel_0_8_2~43
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f7e6112d0f973f98659397de598cf47ae2043061;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

- changelog
- docs

Conflicts:
	doc/build/changelog/changelog_09.rst
---

diff --git a/doc/build/changelog/changelog_08.rst b/doc/build/changelog/changelog_08.rst
index ffb2a24d42..1eed675eb3 100644
--- a/doc/build/changelog/changelog_08.rst
+++ b/doc/build/changelog/changelog_08.rst
@@ -6,6 +6,14 @@
 .. changelog::
     :version: 0.8.2
 
+    .. change::
+        :tags: feature, postgresql
+        :tickets: 2072
+
+        Added support for "AUTOCOMMIT" isolation when using the psycopg2
+        DBAPI.   The keyword is available via the ``isolation_level``
+        execution option.  Patch courtesy Roman Podolyaka.
+
     .. change::
         :tags: bug, orm
         :tickets: 2759
diff --git a/lib/sqlalchemy/dialects/postgresql/base.py b/lib/sqlalchemy/dialects/postgresql/base.py
index 1acdb57b90..49f097c580 100644
--- a/lib/sqlalchemy/dialects/postgresql/base.py
+++ b/lib/sqlalchemy/dialects/postgresql/base.py
@@ -47,7 +47,7 @@ Transaction Isolation Level
 :func:`.create_engine` accepts an ``isolation_level`` parameter which results
 in the command ``SET SESSION CHARACTERISTICS AS TRANSACTION ISOLATION LEVEL
 <level>`` being invoked for every new connection. Valid values for this
-parameter are ``READ COMMITTED``, ``READ UNCOMMITTED``, ``REPEATABLE READ``,
+parameter include ``READ COMMITTED``, ``READ UNCOMMITTED``, ``REPEATABLE READ``,
 and ``SERIALIZABLE``::
 
     engine = create_engine(
@@ -57,7 +57,8 @@ and ``SERIALIZABLE``::
 
 When using the psycopg2 dialect, a psycopg2-specific method of setting
 transaction isolation level is used, but the API of ``isolation_level``
-remains the same - see :ref:`psycopg2_isolation`.
+remains the same.  The psycopg2 dialect also includes support
+for ``AUTOCOMMIT`` isolation - see :ref:`psycopg2_isolation`.
 
 
 Remote / Cross-Schema Table Introspection
diff --git a/lib/sqlalchemy/dialects/postgresql/psycopg2.py b/lib/sqlalchemy/dialects/postgresql/psycopg2.py
index 2d475ccda0..188fb3c11a 100644
--- a/lib/sqlalchemy/dialects/postgresql/psycopg2.py
+++ b/lib/sqlalchemy/dialects/postgresql/psycopg2.py
@@ -61,7 +61,11 @@ The following DBAPI-specific options are respected when used with
 * isolation_level - Set the transaction isolation level for the lifespan of a
   :class:`.Connection` (can only be set on a connection, not a statement
   or query). This includes the options ``SERIALIZABLE``, ``READ COMMITTED``,
-  ``READ UNCOMMITTED`` and ``REPEATABLE READ``.
+  ``READ UNCOMMITTED``, ``REPEATABLE READ``, and ``AUTOCOMMIT``.
+
+  .. versionadded:: 0.8.2 support for AUTOCOMMIT isolation level when using
+     psycopg2.
+
 * stream_results - Enable or disable usage of server side cursors.
   If ``None`` or not set, the ``server_side_cursors`` option of the
   :class:`.Engine` is used.