The relevant change is the addition of the
MSSQLDialect.do_begin method:
def do_begin(self, connection):
cursor = connection.cursor()
cursor.execute("SET IMPLICIT_TRANSACTIONS OFF")
cursor.execute("BEGIN TRANSACTION")
This was first introduced three months ago
to correct the savepoint tests
http://bitbucket.org/mirror/sqlalchemy/changeset/985925326dc8/
and revised a couple months ago to use the
cursor rather than the connection:
http://www.sqlalchemy.org/trac/browser/sqlalchemy/trunk/lib/sqlalchemy/databases/mssql.py?rev=5641
With this method converted to a pass, 0.5.2 works
properly for me on the three machines where before
it always rolled back.
David
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