On 2014-02-04 14:09:57 -0500, Bruce Momjian wrote: > On Tue, Feb 4, 2014 at 01:28:38PM -0500, Robert Haas wrote: > > Meanwhile, in friendlier cases, like "one short and one long field, no > > change", we're seeing big improvements. That particular case shows a > > speedup of 21% and a WAL reduction of 36%. That's a pretty big deal, > > and I think not unrepresentative of many real-world workloads. Some > > might well do better, having either more or longer unchanged fields. > > Assuming that the logic isn't buggy, a point in need of further study, > > I'm starting to feel like we want to have this. And I might even be > > tempted to remove the table-level off switch. > > Does this feature relate to compression of WAL page images at all?
No. Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
