subclasses Unicode so that convert_unicode=True by default.
NVARCHAR2 reflects into this type automatically so
these columns pass unicode on a reflected table with no explicit
convert_unicode=True flags. [ticket:1233]
This maps to the Binary type so it can implement the specialized behavior of
treating length specified types as fixed-width Binary types and non-length
types as an unbound variable length Binary type.
- Added in new types: MSVarBinary and MSImage
- Modified MSBinary to now return BINARY instead of IMAGE. This is a
backwards incompatible change. Closes#1249.
Includes simplifying the IDENTITY handling and the exception handling. Also
includes a cleanup of the connection string handling for pyodbc to favor
the DSN syntax.
The default Column configuration (nullable=True) will now generate NULL in the DDL. Previously no specification was emitted and the database default would take effect (usually NULL, but not always). To explicitly request the database default, configure columns with nullable=None and no specification will be emitted in DDL. Fixes#1243.
- The internal notion of an "OID" or "ROWID" column has been
removed. It's basically not used by any dialect, and the
possibility of its usage with psycopg2's cursor.lastrowid
is basically gone now that INSERT..RETURNING is available.
- Removed "default_order_by()" method on all FromClause
objects.
- profile/compile/select test is 8 function calls over on buildbot 2.4 for some reason, will adjust after checking
the results of this commit
to use regular expressions and format strings, rather
than strptime/strftime, to generically support
pre-1900 dates, dates with microseconds. [ticket:968]
and instead uses subqueries in conjunction with a special
Oracle optimization comment. Allows LIMIT/OFFSET to work
in conjunction with DISTINCT. [ticket:536]
to 'scale'. 'length' is deprecated and is still accepted
with a warning. [ticket:827]
- The 'length' argument to MSInteger, MSBigInteger, MSTinyInteger,
MSSmallInteger and MSYear has been renamed to 'display_width'.
[ticket:827]
- mysql._Numeric now consumes 'unsigned' and 'zerofill' from
the given kw, so that the same kw can be passed along to Numeric
and allow the 'length' deprecation logic to still take effect
- added testlib.engines.all_dialects() to return a dialect for
every db module
- informix added to sqlalchemy.databases.__all__. Since other
"experimental" dbs like access and sybase are there, informix
should be as well.
datetime objects now, not strings. If you'd like to format
dates as strings yourself with SQLite, use a String type.
If you'd like them to return datetime objects anyway despite
their accepting strings as input, make a TypeDecorator around
String - SQLA doesn't encourage this pattern.
match the output of str(somedatetime), i.e. in that the
microseconds are represented as fractional seconds in
string format. [ticket:1090]
- implemented a __legacy_microseconds__ flag on DateTimeMixin which can
be used per-class or per-type instances to get the old behavior, for
compatibility with existing SQLite databases encoded by a previous
version of SQLAlchemy.
- will implement the reverse legacy behavior in 0.4.
- @unsupported now only accepts a single target and demands a reason
for not running the test.
- @exclude also demands an exclusion reason
- Greatly expanded @testing.requires.<feature>, eliminating many
decorators in the suite and signficantly easing integration of
multi-driver support.
- New ORM test base class, and a featureful base for mapped tests
- Usage of 'global' for shared setup going away, * imports as well
Michael Trier