mirror of
https://github.com/sqlalchemy/sqlalchemy.git
synced 2026-06-04 23:06:24 -04:00
Mike Bayer
075eb9076b
loading on an polymorphically-mapped instance mapped by a select_table mapper. - added query.with_polymorphic() - specifies a list of classes which descend from the base class, which will be added to the FROM clause of the query. Allows subclasses to be used within filter() criterion as well as eagerly loads the attributes of those subclasses. - deprecated Query methods apply_sum(), apply_max(), apply_min(), apply_avg(). Better methodologies are coming....
SQLAlchemy
++++++++++
The Python SQL Toolkit and Object Relational Mapper
Requirements
------------
SQLAlchemy requires Python 2.3 or higher. One or more DB-API implementations
are also required for database access. See docs/intro.html for more
information on supported DB-API implementations.
Installing
----------
To install::
python setup.py install
To use without installation, include the ``lib`` directory in your Python
path.
Package Contents
----------------
doc/
HTML documentation, including tutorials and API reference.
examples/
Fully commented and executable implementations for a variety of tasks.
lib/
SQLAlchemy.
test/
Unit tests for SQLAlchemy. See ``README.unittests`` for more
information.
Help
----
Mailing lists, wiki, and more are available on-line at
http://www.sqlalchemy.org.
License
-------
SQLAlchemy is distributed under the `MIT license
<http://www.opensource.org/licenses/mit-license.php>`_.