On Mon, Apr 29, 2002 at 01:06:02PM +0100, David Hanney wrote: > I've got a nice fat varchar(255) primary key who's content is > duplicated (as a foreign key) in many other tables. I hope MySQL > optimizes away that duplication internally.
Not as much as you're probably hoping for. Consider making an MX5() hash of the string and using that instead. It'll buy you a lot of space. Reply-to set to the appropriate list. Jeremy -- Jeremy D. Zawodny, <[EMAIL PROTECTED]> Technical Yahoo - Yahoo Finance Desk: (408) 349-7878 Fax: (408) 349-5454 Cell: (408) 685-5936 MySQL 3.23.47-max: up 81 days, processed 2,089,853,014 queries (298/sec. avg) --------------------------------------------------------------------- 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
