vBulletin 4.x forum owners maybe wondering why after upgrading their vBulletin 3.x forums that their database size increased dramatically. The reason could be due to vBulletin 4.x upgrade or installation process automatically converting some tables from MyISAM to InnoDB storage engine.
Name: George Liu
Online Handle: eva2000
Location: Brisbane, Australia
Occupation: vBulletin.com technical support since 2001