On Feb 11, 9:10 am, Michael Bayer <[email protected]> wrote:
> > For instance, rearranging the below to:
>
> > user = User.query.filter_by(id=1).first()
> > user.x = user.x + 1
> > elixir.session.commit()
>
> > results in a BEGIN, SELECT, UPDATE, COMMIT log output. When I
> > introduce another query before the commit, the COMMIT is never
> > printed.
>
> That's just something specific to what your code is doing.  If you call 
> commit(), and there's a transaction in progress, and it doesn't throw an 
> exception, you'll see COMMIT in the logs.   If you're still playing around 
> with autocommit=True, there's no transaction unless you just called begin().

That's just it -- all of the above is happening with autocommit=False.
Why would a transaction not be present ? Even if this was affected by
the underlying engine (eg, MyISAM), I'd still expect the BEGIN/COMMIT
output to be either consistent or completely non-existent.

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