> -----Original Message----- > From: Christo Du Preez > Sent: Monday, June 11, 2007 10:10 AM > > I have narrowed down the problem (I think) and it's the query > planner using different plans and I haven't got a clue why. > Can anyone please shed some light on this? Different plans can be caused by several different things like different server versions, different planner settings in the config file, different schemas, or different statistics. You say the server versions are the same, so that's not it. Is the schema the same? One isn't missing indexes that the other has? Do they both have the same data, or at least very close to the same data? Have you run analyze on both of them to update their statistics? Do they have the same planner settings in the config file? I would check that stuff out and see if it helps. Dave
