On Fri, 22 Aug 2003 16:27:53 +0530, Shridhar Daithankar
<shridhar_daithankar@persistent.co.in> wrote:
>What does FSM does then?
FSM = Free Space Map. VACUUM writes information into the FSM, INSERTs
consult the FSM to find pages with free space for new tuples.
> I was under impression that FSM stores page
>pointers and vacuum work on FSM information only. In that case, it wouldn't
>have to waste time to find out which pages to clean.
This has been discussed yesterday here and on -hackers ("Decent VACUUM
(was: Buglist)"). We were talking about inventing a second data
structure: RSM.
Servus
Manfred