> Not happening here (8.2.x, output redirected using "\o /dev/null") - are > you sure it's not psql (or whatever client) that's using up your memory, > as it tries to build the entire result set before sending it to > /dev/null? Don't forget, you've got 5 copies of the columns so that > would be ~ 700MB. > > If it is the backend, you'll need to give some of the tuning parameters > you're using, since it works here on my much smaller dev server (1GB RAM > and plenty of other stuff using it).
You are absolutely right about the result size. I tried the '\o /dev/null' and worked, I had not realised the client is buffering the final result. Instead, I used to execute the command 'psql < query.sql > /dev/null', so the psql process consumed all the available memory. Thank you very much for your immediate and felicitous response. Kind regards, Konstantinos Krikellas PhD student, Database Group University of Edinburgh Email: [EMAIL PROTECTED] Pnone number: +44 (0) 131 651 3769