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authormike bayer <mike_mp@zzzcomputing.com>2020-07-13 15:17:51 +0000
committerGerrit Code Review <gerrit@bbpush.zzzcomputing.com>2020-07-13 15:17:51 +0000
commit99d3f173dcb0eea88871102e89cf05ce3be9b4cb (patch)
treea56131f5ea5e84af900388fe8f60483228f242a5 /lib
parent27f443f3f9930b907aa5ab336b083facf1146335 (diff)
parent28fbb0cb94ddf92a014adbfe63a15b7d0797ccee (diff)
downloadsqlalchemy-99d3f173dcb0eea88871102e89cf05ce3be9b4cb.tar.gz
Merge "more docs for autocommit isolation level"
Diffstat (limited to 'lib')
-rw-r--r--lib/sqlalchemy/dialects/mssql/base.py7
-rw-r--r--lib/sqlalchemy/dialects/mysql/base.py4
-rw-r--r--lib/sqlalchemy/dialects/oracle/base.py4
-rw-r--r--lib/sqlalchemy/dialects/postgresql/base.py2
-rw-r--r--lib/sqlalchemy/dialects/sqlite/base.py4
-rw-r--r--lib/sqlalchemy/engine/base.py18
6 files changed, 25 insertions, 14 deletions
diff --git a/lib/sqlalchemy/dialects/mssql/base.py b/lib/sqlalchemy/dialects/mssql/base.py
index 06ea80b9e..427dd0e1f 100644
--- a/lib/sqlalchemy/dialects/mssql/base.py
+++ b/lib/sqlalchemy/dialects/mssql/base.py
@@ -342,11 +342,12 @@ Valid values for ``isolation_level`` include:
* ``SERIALIZABLE``
* ``SNAPSHOT`` - specific to SQL Server
-.. versionadded:: 1.1 support for isolation level setting on Microsoft
- SQL Server.
-
.. versionadded:: 1.2 added AUTOCOMMIT isolation level setting
+.. seealso::
+
+ :ref:`dbapi_autocommit`
+
Nullability
-----------
MSSQL has support for three levels of column nullability. The default
diff --git a/lib/sqlalchemy/dialects/mysql/base.py b/lib/sqlalchemy/dialects/mysql/base.py
index d3d7a8cce..d4ffcabd5 100644
--- a/lib/sqlalchemy/dialects/mysql/base.py
+++ b/lib/sqlalchemy/dialects/mysql/base.py
@@ -158,7 +158,9 @@ MySQLdb, MySQL-Client, MySQL-Connector Python, and PyMySQL. Using it,
the MySQL connection will return true for the value of
``SELECT @@autocommit;``.
-.. versionadded:: 1.1 - added support for the AUTOCOMMIT isolation level.
+.. seealso::
+
+ :ref:`dbapi_autocommit`
AUTO_INCREMENT Behavior
-----------------------
diff --git a/lib/sqlalchemy/dialects/oracle/base.py b/lib/sqlalchemy/dialects/oracle/base.py
index 34c665fbe..6f4df8068 100644
--- a/lib/sqlalchemy/dialects/oracle/base.py
+++ b/lib/sqlalchemy/dialects/oracle/base.py
@@ -68,6 +68,10 @@ Valid values for ``isolation_level`` include:
as well as the notion of a default isolation level, currently harcoded
to "READ COMMITTED".
+.. seealso::
+
+ :ref:`dbapi_autocommit`
+
Identifier Casing
-----------------
diff --git a/lib/sqlalchemy/dialects/postgresql/base.py b/lib/sqlalchemy/dialects/postgresql/base.py
index c2d9af4d2..5cef5d929 100644
--- a/lib/sqlalchemy/dialects/postgresql/base.py
+++ b/lib/sqlalchemy/dialects/postgresql/base.py
@@ -117,6 +117,8 @@ Valid values for ``isolation_level`` include:
.. seealso::
+ :ref:`dbapi_autocommit`
+
:ref:`psycopg2_isolation_level`
:ref:`pg8000_isolation_level`
diff --git a/lib/sqlalchemy/dialects/sqlite/base.py b/lib/sqlalchemy/dialects/sqlite/base.py
index a203e786e..0475a397e 100644
--- a/lib/sqlalchemy/dialects/sqlite/base.py
+++ b/lib/sqlalchemy/dialects/sqlite/base.py
@@ -212,6 +212,10 @@ by *not even emitting BEGIN* until the first write operation.
degree than is often feasible. See the section :ref:`pysqlite_serializable`
for techniques to work around this behavior.
+.. seealso::
+
+ :ref:`dbapi_autocommit`
+
SAVEPOINT Support
----------------------------
diff --git a/lib/sqlalchemy/engine/base.py b/lib/sqlalchemy/engine/base.py
index 2d672099b..d60f14f31 100644
--- a/lib/sqlalchemy/engine/base.py
+++ b/lib/sqlalchemy/engine/base.py
@@ -212,16 +212,14 @@ class Connection(Connectable):
:param autocommit: Available on: Connection, statement.
When True, a COMMIT will be invoked after execution
when executed in 'autocommit' mode, i.e. when an explicit
- transaction is not begun on the connection. Note that DBAPI
- connections by default are always in a transaction - SQLAlchemy uses
- rules applied to different kinds of statements to determine if
- COMMIT will be invoked in order to provide its "autocommit" feature.
- Typically, all INSERT/UPDATE/DELETE statements as well as
- CREATE/DROP statements have autocommit behavior enabled; SELECT
- constructs do not. Use this option when invoking a SELECT or other
- specific SQL construct where COMMIT is desired (typically when
- calling stored procedures and such), and an explicit
- transaction is not in progress.
+ transaction is not begun on the connection. Note that this
+ is **library level, not DBAPI level autocommit**. The DBAPI
+ connection will remain in a real transaction unless the
+ "AUTOCOMMIT" isolation level is used.
+
+ .. deprecated:: 1.4 The library-level "autocommit" feature is being
+ removed in favor of database driver "autocommit" which is
+ now widely available. See the section :ref:`dbapi_autocommit`.
:param compiled_cache: Available on: Connection.
A dictionary where :class:`.Compiled` objects