On Wed, Mar 8, 2017 at 2:30 PM, Alvaro Herrera <alvhe...@2ndquadrant.com> wrote: > Not really -- it's a bit slower actually in a synthetic case measuring > exactly the slowed-down case. See > https://www.postgresql.org/message-id/cad__ougk12zqmwwjzim-yyud1y8jmmy6x9yectnif3rpp6h...@mail.gmail.com > I bet in normal cases it's unnoticeable. If WARM flies, then it's going > to provide a larger improvement than is lost to this.
Hmm, that test case isn't all that synthetic. It's just a single column bulk update, which isn't anything all that crazy, and 5-10% isn't nothing. I'm kinda surprised it made that much difference, though. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers