On Saturday 08 March 2003 09:09, Heo Jungsu wrote: > I have a question about altering table which has foreign key constraints. > > MySQL manual says that : > > "In InnoDB versions < 3.23.50 ALTER TABLE or CREATE INDEX should not be > used in connection with tables which have foreign key constraints or which > are referenced in foreign key constraints: .. (omitted) .. A CREATE INDEX > statement is in MySQL processed as an ALTER TABLE, and these restrictions > apply also to it. " on http://www.mysql.com/doc/en/SEC457.html > > But, how abount InnoDB versions >= 3.23.50? > > Version 4.0.11 still cannot alter referencing table and referenced table?
It can and MySQL doesn't remove foreign key constraint. > What's the safe query in below lits (MySQL 4.0.11) ? > > * alter referencing table > * alter referenced table > * create index on referencing table > * create index on referenced table. They are all safe ... > When I have used MySQL 4.0.10 If I alter referencing and referenced table > several times, > sometimes I could not execute a query on those tables even "drop table...." > (So I rebuilded entire InnoDB ;-( ) What do you mean "could not execute a query on those tables"? Could you be more detailed? -- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is sponsored by Ensita.net http://www.ensita.net/ __ ___ ___ ____ __ / |/ /_ __/ __/ __ \/ / Victoria Reznichenko / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.net <___/ www.mysql.com --------------------------------------------------------------------- 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
