> Seems so logical to me, that these hashing functions were available > are aggregates, I can't be the first one to think of that, can it? >
I've been on this list since late 2002 and I don't recall this ever being brought up. Now it is entirely possible that age has dimmed my recall abilities:) Though a quick search seems to confirm my memory.
What even is an aggregate hash function? (I can imagine a few possibilities, but don't want to assume.)