> The transaction information on tuples take 18 bytes plus several info
> bits. It's possible just storing a subset of that would be useful but
> it's unclear. And I think it would complicate the code if it had to
> sometimes fetch the heap tuple to get the rest and sometimes doesn't.
Visibility map had a similar proposal and it got accepted. Fine... I think,
if you guys are going to stress so hard, then there might be some issues,
which i am not foreseeing right now.
> I think you have to take up a simpler project as a first project. This
> is a major overhaul of transaction information and it depends on
> understanding how a lot of different areas work -- all of which are
> very complex tricky areas to understand.
> Yep.. i would start by just joining in someone's project to help them out.
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