-- In case of downgrade, it's ok to drop unknown tables -- from a future version, as long as they belong to the -- performance schema engine. set @have_old_pfs= (select count(*) from ...
--- mysql-dfsg-5.1-5.1.23rc.orig/scripts/mysql_install_db.sh 2008-01-29 22:41:20.000000000 +0100 +++ mysql-dfsg-5.1-5.1.23rc/scripts/mysql_install_db.sh 2008-02-28 10 ...