"Marc G. Fournier" <[EMAIL PROTECTED]> writes: > do we maintain anything anywhere for this? mainly, some way of > determining # of 'sorts to disk' vs 'sort in memory', to determine whether > or not sort_mem is set to a good value?
As of 8.1 you could turn on trace_sort to collect some data about this. Looking at the code, I notice that the messages are all emitted at level NOTICE. Perhaps that was not such a good idea --- it'd be pretty much in-your-face if it were on all the time. Does anyone think it'd be a good idea to emit the trace_sort messages at level LOG, instead? regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq