On Sat, 2006-04-08 at 15:10 +0100, Gavin Hamill wrote: > SELECTS go to *both* live and test, but only the answers from live are > sent back to clients - the answers from test are discarded... Put log_min_duration_statement = 0 so all SELECTs go to the log. Sniff the live log for SELECT statements (plus their live durations), then route those same statements to the dev box and get a timing from there also. That way you'll be able to do this without any C coding, plus you'll have both the live and test elapsed times as a comparison. Best Regards, Simon Riggs