Subject Re: [firebird-support] Today's performance question - index direction
Author Alexandre Benson Smith
Em 4/9/2013 13:02, Tim Ward escreveu:
Ah, yes, I did write one of those once - a 1980s spelling dictionary for a word processor, where being able to encode an entire word in the smallest possible number of five-bit codes was *much* more important than being able to read the list backwards. (I think we ended up with less than 3 bytes per word for an English dictionary?)

I'm slightly surprised that it's thought to matter with this century's disk prices however.
Tim Ward

AFAIK it's not about disk price, but to make it more dense, so more index entries could fit in a single page, leading to fewer page reads and so improving speed.

see you !