Andres Freund <andres@2ndquadrant.com> writes:
> On 2012-12-17 12:47:41 -0500, Tom Lane wrote:
>> But, if the day ever comes when 64 bits doesn't seem like enough, I bet
>> we'd move to 128-bit integers, which will surely be available on all
>> platforms by then. So +1 for using plain comparisons --- in fact, I'd
>> vote for running around and ripping out the macros altogether. I had
>> already been thinking of fixing the places that are still using memset
>> to initialize XLRecPtrs to "invalid".
> I thought about that and had guessed you would be against it because it
> would cause useless diversion of the branches? Otherwise I am all for
> it.
That's the only argument I can see against doing it --- but Heikki's
patch was already pretty invasive in the same areas this would touch,
so I'm thinking this won't make back-patching much worse. The
notational simplification seems worth it.
regards, tom lane