Camilo Porto <[EMAIL PROTECTED]> writes: > The problem I have encountered is that the sum of executor's > duration time is, *sometimes*, bigger than the total time interval in > which the statements had been executed!! And this makes no sense!
Umm ... why not? If you have, say, two queries executing in parallel for 1 second, they'll each report a duration: of 1 second, thus summing to 2 seconds, but the elapsed time was only 1 second. If you don't see that always, then your benchmark program isn't trying very hard to run more than one query in parallel ... regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 7: You can help support the PostgreSQL project by donating at http://www.postgresql.org/about/donate