Re: XQuery (and XML) vs LISP

From: Jan Hidders <hidders_at_gmail.com>
Date: 1 Mar 2006 01:26:02 -0800
Message-ID: <1141205162.275337.288250@j33g2000cwa.googlegroups.com>

vc schreef:

> 2. A reasonable subset of predicate locking, known as "the next key
> locking" has already been implemented in major databases such as DB2
> and SQL Sever (see Mohan's ARIES protocol, 1981) so your database might
> already have it. Even MySQL (InnoDB) has it.

I thought 'next key locking' referred to a specific key-value locking protocol that is described in Mohan's 1990 paper. http://www.vldb.org/conf/1990/P392.PDF

I knew that the DBMSs you mention use a locking protocol from the ARIES family, but I thought it was one of the more general ones, so did you mean to say that they use this specific protocol?

Jan Hidders

Received on Wed Mar 01 2006 - 03:26:02 CST