Hi,
I'm currently trying to use savepoints on SQLite, however, there are some
problems with it which I don't understand. The following traceback occurs
quite often:
----------------- snip ----------------------
File "/home/dusty/prog/bsp/buildout/src/bsp/bsp/tests/__init__.py", line
156, in checkbooking
session.rollback()
File
"/home/dusty/prog/bsp/buildout/eggs/SQLAlchemy-0.5.3-py2.4.egg/sqlalchemy/orm/session.py",
line 649, in rollback
self.transaction.rollback()
File
"/home/dusty/prog/bsp/buildout/eggs/SQLAlchemy-0.5.3-py2.4.egg/sqlalchemy/orm/session.py",
line 404, in rollback
transaction._rollback_impl()
File
"/home/dusty/prog/bsp/buildout/eggs/SQLAlchemy-0.5.3-py2.4.egg/sqlalchemy/orm/session.py",
line 415, in _rollback_impl
t[1].rollback()
File
"/home/dusty/prog/bsp/buildout/eggs/SQLAlchemy-0.5.3-py2.4.egg/sqlalchemy/engine/base.py",
line 1028, in rollback
self._do_rollback()
File
"/home/dusty/prog/bsp/buildout/eggs/SQLAlchemy-0.5.3-py2.4.egg/sqlalchemy/engine/base.py",
line 1068, in _do_rollback
self.connection._rollback_to_savepoint_impl(self._savepoint,
self._parent)
File
"/home/dusty/prog/bsp/buildout/eggs/SQLAlchemy-0.5.3-py2.4.egg/sqlalchemy/engine/base.py",
line 763, in _rollback_to_savepoint_impl
self.engine.dialect.do_rollback_to_savepoint(self, name)
File
"/home/dusty/prog/bsp/buildout/eggs/SQLAlchemy-0.5.3-py2.4.egg/sqlalchemy/engine/default.py",
line 113, in do_rollback_to_savepoint
connection.execute(expression.RollbackToSavepointClause(name))
File
"/home/dusty/prog/bsp/buildout/eggs/SQLAlchemy-0.5.3-py2.4.egg/sqlalchemy/engine/base.py",
line 824, in execute
return Connection.executors[c](self, object, multiparams, params)
File
"/home/dusty/prog/bsp/buildout/eggs/SQLAlchemy-0.5.3-py2.4.egg/sqlalchemy/engine/base.py",
line 874, in _execute_clauseelement
return self.__execute_context(context)
File
"/home/dusty/prog/bsp/buildout/eggs/SQLAlchemy-0.5.3-py2.4.egg/sqlalchemy/engine/base.py",
line 896, in __execute_context
self._cursor_execute(context.cursor, context.statement,
context.parameters[0], context=context)
File
"/home/dusty/prog/bsp/buildout/eggs/SQLAlchemy-0.5.3-py2.4.egg/sqlalchemy/engine/base.py",
line 950, in _cursor_execute
self._handle_dbapi_exception(e, statement, parameters, cursor,
context)
File
"/home/dusty/prog/bsp/buildout/eggs/SQLAlchemy-0.5.3-py2.4.egg/sqlalchemy/engine/base.py",
line 931, in _handle_dbapi_exception
raise exc.DBAPIError.instance(statement, parameters, e,
connection_invalidated=is_disconnect)
OperationalError: (OperationalError) no such savepoint: sa_savepoint_1
u'ROLLBACK TO SAVEPOINT sa_savepoint_1' []
----------------- snip ----------------------
The very same code works well with SAPDB, so I'm unsure if the reason for that
lies in my code.
Any hints?
Best Regards,
Hermann
--
herm...@qwer.tk
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