diff options
Diffstat (limited to 'lib/sqlalchemy/engine/base.py')
| -rw-r--r-- | lib/sqlalchemy/engine/base.py | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/lib/sqlalchemy/engine/base.py b/lib/sqlalchemy/engine/base.py index dc42ed957..f040ec920 100644 --- a/lib/sqlalchemy/engine/base.py +++ b/lib/sqlalchemy/engine/base.py @@ -794,6 +794,14 @@ class Connection(Connectable): """ return self.engine.Connection(self.engine, self.__connection, _branch=True) + + def _clone(self): + """Create a shallow copy of this Connection. + + """ + c = self.__class__.__new__(self.__class__) + c.__dict__ = self.__dict__.copy() + return c def execution_options(self, **opt): """ Set non-SQL options for the connection which take effect during execution. @@ -811,9 +819,9 @@ class Connection(Connectable): :meth:`sqlalchemy.sql.expression.Executable.execution_options`. """ - return self.engine.Connection( - self.engine, self.__connection, - _branch=self.__branch, _execution_options=opt) + c = self._clone() + c._execution_options = c._execution_options.union(opt) + return c @property def dialect(self): |