In Jannie's problem, CREATE TABLE pub_access_type( access_type_id INT UNSIGNED NOT NULL, access_type_name VARCHAR(25), PRIMARY KEY(access_type_id) ) TYPE=INNODB;
CREATE TABLE pub_user( user_id INT UNSIGNED, parent_id INT, user_fname VARCHAR (25), user_lname VARCHAR (25), user_password VARCHAR (25), INDEX par_ind(parent_id), FOREIGN KEY parent_id REFERENCES pub_access_type(access_type_id) ON DELETE SET NULL ) TYPE=INNODB; MySQL correctly refuses to create pub_user because it has been asked to reference an unsigned key, pub_access_type(access_type_id), with the signed key parent_id. Jannie found that MySQL accepts the incorrect key reference if the referencing key is aliased ... ... FOREIGN KEY pub_user(parent_id) ... ... But consider what will happen when parent_id wraps around. Looks like a bug. PB --------------------------------------------------------------------- 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
