> > > I think this should be 0 for all kinds by default. Only ever > 0 for
> > > variable-numbered
> > > kinds with entry tracking enabled. No NULLs. The fields should be called
> > > "entry_count" instead of "count". We should update the documentation to
> > > reflect that as well. That seems easier to query than having mixed NULLs and
> > > numbers.
> >
> > IMO, in this case, NULL should be a synonym of "I don't know", which
> > is what entry_count set to false means. 0 means "I know, there is no
> > data". I'd be OK with dropping the part about fixed-sized stats where
> > we enforce 1, and use NULL instead, though.
>
> +1, that's also my opinion [1].
>
> [1]: https://postgr.es/m/ajtroNXfBS/ldtNZ%40bdtpg
I'm ok with that if others feel this is better.
--
Sami
