On Mon, May 3, 2021 at 11:26 AM Peter Geoghegan <p...@bowt.ie> wrote: > It just has to be able to accept the restriction that > indexes must have a unique TID-like identifier for each version (not > quite a version actually -- whatever the equivalent of a HOT chain > is). This is a restriction that Jeff had pretty much planned on > working within before starting this thread (I know this because we > spoke about it privately).
Well, I think what I'm saying is that I'm not on board with such a restriction. If you're just saying that it has to be possible to identify rows somehow, I am in full agreement, and I think the universe is on board as well. But if you're saying those identifiers have to be fixed-width and 48 (or even 64) bits, I disagree that we wish to have such a requirement in perpetuity. That'd be like going around to automobile manufacturers in 1925 and asking them to agree that all future cars ever manufactured must have a clutch. -- Robert Haas EDB: http://www.enterprisedb.com
