Hi! On Mar 05, Klaus Weyhe wrote: > > Hello ... Is there anybody out there.., > who can tell me how to create the parameteres for the mi_rkey function in > the myisam library. > I've tried to create the key by concatenating the key segments. > Apparently that dosn't work. I get errcode 120,(Key not found ??). > > I'm trying to migrate from INFORMIX c-isam to MySQL. > > Besides: Have I understood the manual right, when I asume that descending > key are not allowed(only ascending) ??
Several points - 1. you'd better send this email to [EMAIL PROTECTED], it was created for questions like this 2. take a look at mi_test?.c examples - there're multi-seg keys there. 3. descending keys are allowed. There's flag HA_REVERSE_SORT 4. To migrate from c-isam there's no need to use MyISAM functions directly. Take a look at MySQL HANDLER command - it provides direct access to low-level isam functions, bypassing SQL optimizer. You'll get client-server architecture, and - most probably - higher performance with it (due to cache issues). Btw, this HANDLER comand was created precisely to simplify c-isam -> MySQL migration. Regards, Sergei -- MySQL Development Team __ ___ ___ ____ __ / |/ /_ __/ __/ __ \/ / Sergei Golubchik <[EMAIL PROTECTED]> / /|_/ / // /\ \/ /_/ / /__ MySQL AB, http://www.mysql.com/ /_/ /_/\_, /___/\___\_\___/ Osnabrueck, Germany <___/ --------------------------------------------------------------------- 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
