On 14/02/2019 11:17, Alvaro Herrera wrote:
> On 2019-Feb-13, Alvaro Herrera wrote:
>
>> It definitely is ... plans have changed from using IndexOnly scans to
>> Seqscans, which is likely fallout from the visibilitymap_count() change.
> I think the problem here is that "unsigned long" is 32 bits in this
> machine:
[...]
From my memory of reading of K&R many moons ago, it said that C only
guarantees that the lengths are such that
byte <= half word <= word <= long
But I don't recall ever seeing a long less than 32 bits!
Cheers,
Gavin