Em sex., 19 de ago. de 2022 às 16:22, Justin Pryzby <pry...@telsasoft.com>
escreveu:

> On Fri, Aug 19, 2022 at 03:52:36PM -0300, Ranier Vilela wrote:
> > Em qui., 11 de ago. de 2022 às 09:52, Ranier Vilela <ranier...@gmail.com>
> escreveu:
> >
> > > Hi,
> > >
> > > One other case suspicious, which I think deserves a conference.
> > > At function wait_on_slots (src/fe_utils/parallel_slot.c)
> > > The variable "slots" are array, but at function call SetCancelConn,
> > > "slots" are used as an object, which at the very least would be
> suspicious.
> >
> > The commit
> >
> https://github.com/postgres/postgres/commit/f71519e545a34ece0a27c8bb1a2b6e197d323163
> > Introduced the affected function.
>
> It's true that the function was added there, but SetCancelConn() was
> called the
> same way before that: SetCancelConn(slots->connection);
>
> If you trace the history back to a17923204, you'll see a comment about the
> "zeroth slot", which makes it clear that the first slot it what's intended.
>
Thank you Justin, for the research.

>
> I agree that it would be clearer if this were written as
> slots[0].connection.
>
But I still think that the new variable introduced,  "cancelconn", became
the real argument.

regards,
Ranier Vilela

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