This guest post is from our friends at Percona. They’re
hosting Percona Live London from October 24-25,
2011. Percona Live is a two day summit with 100% technical
sessions led by some of the most established speakers in the
In the London area and interested in attending? We are giving away two free passes in the next few days. Watch our @tokutek twitter feed for a chance to win.
Did you know that the following query actually performs a JOIN? You can’t see it, but it’s there:
SELECT the_day, COUNT(*), SUM(clicks), SUM(cost) FROM ad_clicks_by_day WHERE the_day >= …[Read more]