Alex, ----- Original Message ----- From: ""Zeltser, Alex"" <[EMAIL PROTECTED]> Newsgroups: mailing.database.myodbc Sent: Wednesday, January 21, 2004 10:28 PM Subject: RE: InnoDB locking 'non-existence' of a row
> Hello Heikki, > > Thank you for your reply and your explanation. It clarifies things and = > explains some of the > unexpected behavior I've observed (such as my own inability to insert to = > the gap after locking it). > > In general, is there a place where I can find a good discussion on the = > various locks used by InnoDB? > I've seen references to various locks in InnoDB status output, but = > wasn't sure what each kind was > (S-locks, X-locks, etc.). This would be a great aid for helping = > troubleshoot these kinds of > problems. /mysql/innobase/lock/lock0lock.c contains a lengthy comment at the start of the file. And the full source code of the algorithms, too :). Papers by IBM researcher C. Mohan may also be of interest. > Thank you for your time, > > Alex Zeltser Best regards, Heikki Tuuri Innobase Oy http://www.innodb.com Foreign keys, transactions, and row level locking for MySQL InnoDB Hot Backup - a hot backup tool for InnoDB which also backs up MyISAM tables Order MySQL technical support from https://order.mysql.com/ -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
