On Wed, 2005-08-31 at 16:50 +0900, Satoshi Nagayasu wrote: > Simon Riggs wrote: > >>4. Allow to repair fragmentation in each page. > >> > >>Because updates cause fragmentation in the page. > >> > >>So we need to keep large continuous free space in each page, > >>if we want to get more effective on PCTFREE feature. > > > > > > ...doesn't VACUUM already do that? > > VACUUM generates a huge load because it repaires all pages > on the table file. > > I think (more light-weight) repairing on a single page > is needed to maintain free space in the specific page.
So PCTFREE is an OK idea, but lets drop #4, which is a separate idea and not one that has gained agreeable consensus. Best Regards, Simon Riggs ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq