You mean this message? http://lists.drupal.org/pipermail/development/2005-December/012563.html and http://lists.drupal.org/pipermail/development/2005-December/012568.html On 2/22/06, Angie Byron <drupal-devel@webchick.net> wrote:
Kind of off-topic, but this reminded me of something...
He suggested we use InnoDB for large sites
Is there a particular reason that Drupal's database.mysql file hard-codes tables to use MyISAM rather than leaving this specification off so it just inherits whatever the default table type is? I found this thread http://drupal.org/node/43336 which makes reference to a development discussion on engine agnosticity (I'm pretty sure I just made that word up) but I wasn't able to find the original discussion.
On the off-chance there isn't, here is a patch: