Hi,
On 2019-02-18 20:29:29 -0500, Tom Lane wrote:
> Andres Freund <andres(at)anarazel(dot)de> writes:
> > but it's smaller (althoug there's plenty trailing space).
>
> I think you're supposing that these things are independently palloc'd, but
> they aren't --- dynahash lays them out in arrays without palloc padding.
I don't think that matters, given that the trailing six bytes are
included in sizeof() (and have to, to guarantee suitable alignment in
arrays etc).
Greetings,
Andres Freund