Re: qsort again (was Re: [PERFORM] Strange Create Index behaviour)
Tom Lane <tgl@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
To: "Qingqing Zhou" <zhouqq@cs.toronto.edu>
Cc: pgsql-hackers@postgresql.org
Date: 2006-02-16T04:40:20Z
Lists: pgsql-hackers, pgsql-performance
"Qingqing Zhou" <zhouqq@cs.toronto.edu> writes: > By "did this 100 times" do you mean generate a sequence of at most > 200000*100 numbers, and for every 200000 numbers, the first half are all > zeros and the other half are uniform random numbers? No, I mean I ran the bit of SQL script I gave 100 separate times. regards, tom lane