On Wed, Jul 16, 2014 at 12:46 AM, Alvaro Herrera <alvhe...@2ndquadrant.com> wrote: > (Maybe I'm just too tired and I'm failing to fully understand the torn > page protection. I thought I understood how it worked, but now I'm not > sure -- I mean I don't see how it can possibly have any value at all. > Surely if the disk writes the first 512-byte sector of the page and then > forgets the updates to the next 15 sectors, the page will appear as not > needing the full page image to be restored ...)
We always restore full page images, regardless of the page LSN. Otherwise, we'd have exactly the problem you describe. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
