> -----Original Message----- > From: Joost Kraaijeveld [mailto:J.Kraaijeveld@xxxxxxxxxx] > Sent: 07 November 2005 09:03 > To: Dave Page > Cc: Tom Lane; Pgsql-Performance > Subject: RE: Performance PG 8.0 on dual opteron / > 4GB / 3ware > > > Nothing - it just uses libpq's pqexec function. The speed issue in > > pgAdmin is rendering the results in the grid which can be > slow on some > > OS's due to inefficiencies in some grid controls with large > data sets. > > That's why we give 2 times - the first is the query runtime on the > > server, the second is data retrieval and rendering (iirc, > it's been a > > while). > That is what I thought, but what could explain the difference in query > runtime (78 seconds versus 5 seconds) ? Not in terms of our code - we obviously do a little more than just run the query, but I can't spot anything in there that should be non-constant time. Don't suppose it's anything as simple as you vacuuming in between is it? Regards, Dave ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq