Dean Rasheed writes:
> The patch looks reasonable, except I wonder if all compilers are smart
> enough to realise that totCount is always initialised.
I think they should be, since that if-block ends with a return;
the only way to get to the use of totCount is for both parts of the
first if-condi
On Fri, 12 Jun 2020 at 20:53, Tom Lane wrote:
>
> I wrote:
> > Before v12, stddev_pop() had the following behavior with just a
> > single input value:
> > ...
> > As of v12, though, all three cases produce 0. I am not sure what
> > to think about that with respect to an infinity input, but I'm
>
I wrote:
> Before v12, stddev_pop() had the following behavior with just a
> single input value:
> ...
> As of v12, though, all three cases produce 0. I am not sure what
> to think about that with respect to an infinity input, but I'm
> quite sure I don't like it for NaN input.
While I'm still no
Before v12, stddev_pop() had the following behavior with just a
single input value:
regression=# SELECT stddev_pop('42'::float8);
stddev_pop
0
(1 row)
regression=# SELECT stddev_pop('inf'::float8);
stddev_pop
NaN
(1 row)
regression=# SELECT stddev_
