On 2019-Jun-03, Peter Geoghegan wrote: > As you know, it's a bit weird that we're proposing adding sort support > with abbreviated keys for a type that is 8 bytes, since you'd expect > it to also be pass-by-value on most platforms, which largely defeats > the purpose of having abbreviated keys (though sort support could > still make sense, for the same reason it makes sense to have it for > int8). However, macaddr8 isn't actually pass-by-value, and it seems > too late to do anything about that now, so abbreviated keys actually > make sense.
I'm not sure I understand why you say it's too late to change now. Surely the on-disk representation doesn't actually change, so it is not impossible to change? And you make it sound like doing that change is worthwhile, performance-wise. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
