On Fri, Feb 24, 2012 at 9:37 AM, Reuven M. Lerner <reuven@xxxxxxxxxxxx> wrote: > I just checked, and work_mem is set to 30 MB. That seems a bit low to me, > given the size of the database and the fact that we're doing so much sorting > and subselecting. Am I right that we should push that up some more? You can certainly increase work_mem **for the delete** (which you can do by issuing "set work_mem='something'" just before the delete - it will only apply to that connection), but bear in mind that work_mem is the amount of memory each connection can use for each operation. Total usage can go way higher than max_connections * work_mem, depending on the kind of queries you have. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
