is currently being supported in addition to nose, and will likely be preferred to nose going forward. The nose plugin system used by SQLAlchemy has been split out so that it works under pytest as well. There are no plans to drop support for nose at the moment and we hope that the test suite itself can continue to remain as agnostic of testing platform as possible. See the file README.unittests.rst for updated information on running tests with pytest. The test plugin system has also been enhanced to support running tests against mutiple database URLs at once, by specifying the ``--db`` and/or ``--dburi`` flags multiple times. This does not run the entire test suite for each database, but instead allows test cases that are specific to certain backends make use of that backend as the test is run. When using pytest as the test runner, the system will also run specific test suites multiple times, once for each database, particularly those tests within the "dialect suite". The plan is that the enhanced system will also be used by Alembic, and allow Alembic to run migration operation tests against multiple backends in one run, including third-party backends not included within Alembic itself. Third party dialects and extensions are also encouraged to standardize on SQLAlchemy's test suite as a basis; see the file README.dialects.rst for background on building out from SQLAlchemy's test platform.
fractional seconds support; also added fractional seconds support to :class:`.mysql.TIMESTAMP`. DBAPI support is limited, though fractional seconds are known to be supported by MySQL Connector/Python. Patch courtesy Geert JM Vanderkelen. #2941
type such as "charset" and "collation". While MySQL wants all character- based CAST calls to use the CHAR type, we now create a real CHAR object at CAST time and copy over all the parameters it has, so that an expression like ``cast(x, mysql.TEXT(charset='utf8'))`` will render ``CAST(t.col AS CHAR CHARACTER SET utf8)``. - Added new "unicode returns" detection to the MySQL dialect and to the default dialect system overall, such that any dialect can add extra "tests" to the on-first-connect "does this DBAPI return unicode directly?" detection. In this case, we are adding a check specifically against the "utf8" encoding with an explicit "utf8_bin" collation type (after checking that this collation is available) to test for some buggy unicode behavior observed with MySQLdb version 1.2.3. While MySQLdb has resolved this issue as of 1.2.4, the check here should guard against regressions. The change also allows the "unicode" checks to log in the engine logs, which was not previously the case. [ticket:2906]
``__repr__()``, particularly with regards to the MySQL integer/numeric/ character types which feature a wide variety of keyword arguments. The ``__repr__()`` is important for use with Alembic autogenerate for when Python code is rendered in a migration script. [ticket:2893]
- move out tests, dialect specific out of compiler, compiler tests use new API, legacy API tests in test_selecatble - add support for adaptation of ForUpdateArg, alias support in compilers
Python ``Decimal`` via string is now configurable. The flag ``decimal_return_scale`` is now supported by all :class:`.Numeric` and :class:`.Float` types, which will ensure this many digits are taken from the native floating point value when it is converted to string. If not present, the type will make use of the value of ``.scale``, if the type supports this setting and it is non-None. Otherwise the original default length of 10 is used. [ticket:2867]
this complements the work in :ticket:`2183` where we begin to support reflection of foreign key options such as ON UPDATE/ON DELETE cascade. [ticket:2839]