[ still brainstorming ... ] On Thu, 21 Aug 2003 17:16:50 -0400, Tom Lane <[EMAIL PROTECTED]> wrote: >> Whenever a backend encounters a dead tuple it inserts a reference to >> its page into the RSM. > >This assumes that backends will visit dead tuples with significant >probability. I doubt that assumption is tenable;
Good point. What about: Whenever a backend *deletes* a tuple it inserts a reference to its page into the RSM? Then an entry in the RSM doesn't necessarily mean that the referenced page has reclaimable space, but it would still be valueable information. Servus Manfred ---------------------------(end of broadcast)--------------------------- TIP 8: explain analyze is your friend
