On Wed, 12 Feb 2003 17:42:44 -0500, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
wrote:
>Instead of an actively maintained freelist on disk as per Alvaro Herrera's
>patch, I plan to use the FSM to remember where recyclable pages are, much
>as we do for tables.
Given that we have a mostly empty metapage per index, and the metapage
is in memory most of the time, using it for the freelist looks almost
like a free lunch.
I've picked up Alvaro's patch and played around a bit. Reviewing my
changes it turns out that most of them deal with the freelist. If you
are interested I can send my version of the patch to you or to the
list.
Servus
Manfred