Tom Lane escribió: > Dimitri Fontaine <dfontaine@xxxxxxxxxxxx> writes: > > Le Tuesday 05 February 2008 21:28:31 Alvaro Herrera, vous avez �it�: > >> Perhaps there is a user-level document somewhere. > > > I don't think such a document already exists, even rtfm_please doesn't know > > about any as of now. > > The reason there isn't one is it doesn't need one; it's an > implementation detail not a user-visible feature. One reason to think it needs to be explained is that it affects how you plan for VACUUM. In tables where HOT is in charge of a large part of cleanup, you need to do a lot less vacuuming than you were for 8.2. In that sense it is very much user-visible. -- Alvaro Herrera http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc. ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org
