Why does a query invoke a auto-flush in SQLAlchemy?
How to turn off autoflush feature:
Temporary: you can use no_autoflush context manager on snippet where you query the database, i.e. in
X.testmethod:def test(self, session): with session.no_autoflush: q = session.query(X).filter(X._val == self._val) x = q.one() print('x={}'.format(x))Session-wide: just pass
autoflush=Falseto your sessionmaker:return sao.sessionmaker(bind=engine, autoflush=False)()
I know this is old but it might be helpful for some others who are getting this error while using flask-sqlalchemy. The below code has fixed my issue with autoflush.
db = SQLAlchemy(session_options={"autoflush": False})