Hi, Could someone explain why dropping a primary key of a table (of ~1million rec) may take up to minutes of time and 99%CPU?
Naively, I would have thought that this involves only updating the index file. However, all the .MYD, MYI and .frm files are duplicated (#sql-*), and then something happens for quite a bit of time. Is this related to the fact that I have more indexes in the table, and those are retained? I guess MySQL is doing something intelligent, but I did not find a source that explains the procedure ... what exactly happens. Gaspar -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
