>Now that's a close to linear as you are going to get. Pretty good I think:
>a sort of one billion rows in half an hour.
Oops! It's not one billion but 10 millions. Sorry.
1 million tuples 1:31
2 4:24
3 7:27
4 11:11 <-- 970MB
5 14:01 <-- 1.1GB (segmented files)
6 18:31
7 22:24
8 24:36
9 28:12
10 32:14
--
Tatsuo Ishii