On Thu, 2009-10-01 at 11:32 -0500, Kevin Grittner wrote:
> If there's a huge chunk of
> space near the end, and many many smaller spaces spread throughout,
> what I'd like is for rows to be placed in those small ones. This
> would minimize the number of pages to read for queries, and would
> present some possibility that the rows past the huge chunk might
> eventually be deleted or non-HOT updated, allowing the bloat to
> eventually be cleaned up with minimal pain.
Yes, as Tom points out, this must be done with bias away from the very
end of the table.
I meant that we should start from the beginning of large spaces and that
we shouldn't assume that all space worth filling is at start of
relation.
-- Simon Riggs www.2ndQuadrant.com