"Joshua D. Drake" <[EMAIL PROTECTED]> writes: > Jonah H. Harris wrote: >> On Thu, Oct 30, 2008 at 10:33 AM, Zdenek Kotala <[EMAIL PROTECTED]> wrote: >>> Please, DO NOT MOVE position of page version in PageHeader structure! And >>> PG_PAGE_LAYOUT_VERSION should be bump to 5. >> >> Umm, any in-place upgrade should be capable of handling changes to the >> page header. Of, did I miss something significant in the in-place > > I thought that was kind of the point of in place upgrade.
Sure, but he has to have a reliable way to tell what version of the page header he's looking at... What I'm wondering though -- are we going to make CRCs mandatory? Or set aside the 4 bytes even if you're not using them? Because if the size of the page header varies depending on whether you're using CRCs that sounds like it would be quite a pain. -- Gregory Stark EnterpriseDB http://www.enterprisedb.com Ask me about EnterpriseDB's 24x7 Postgres support! -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
