Ok, as Morgan quickly found out: I'm incredibly stupid. Read his comment and you'll know why. Ok, you'll not know why but you'll know that I am.
Really cool to see Chris taking up blogging as well
He has written nice little example about inserting comments into queries to distinguish the client’s IP when they are funneled through the proxy. Reading the comments about this little trick making the query cache not work, I couldn’t help thinking that those are wrong. I vaguely remembered that in some recent version this shortcoming was fixed, so I decided to run a little test on 5.1.30 to verify:
mysql> select concat(@@version_comment, ' ', @@version); …