Fabrício dos Anjos Silva<fabricio.silva@xxxxxxxxxxxxxx> wrote: > After reading lots of documentation, I still don't understand > fully how PG knows if some needed data is in memory or in second > storage. > Does PG consider this? No. > When setting seq_page_cost and random_page_cost, do I have to > consider the probability that data will be in memory? Yes. -Kevin -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
