On Fri, 2002-02-08 at 11:11, Steve Rapaport wrote: > I said: > > > Why is it that Altavista can index terabytes overnight and return > > > a fulltext boolean for the WHOLE WEB > > > within a second, and Mysql takes so long? > > On Friday 08 February 2002 08:56, Vincent Stoessel wrote: > > > Apples and oranges. > > Yeah, I know. But let's see if we can make some distinctions. > If, say, Google, can search 2 trillion web pages, averaging say 70k bytes > each, in 1 second, and Mysql can search 22 million records, with an index > on 40 bytes each, in 3 seconds (my experience) on a good day, > what's the order of magnitude difference? Roughly 10^9. > > > Have you seen the /hardware/ run that enterprise with? > Irrelevant, you're unlikely to get 9 orders of magnitude difference with > faster hardware or even with clustering.
Actually not since Google runs on 10000 of machines. And if you search for a while you will notice that you will get different answers (at least I have had troubles with this). Also I have used google to track occurrences of certain words over time. And according to google some words (with millions of occurrences) changed with about 40% in a week. So they simple provide approximate answers while MySQL has to provide exact answers. So the standard answer with Apples and Oranges certainly apply here! /David --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
