On Sat, Mar 27, 2010 at 10:10 AM, Simon Riggs <simon@2ndquadrant.com> wrote:
> It appears that in practice many of the index items point to heap items
> that are LP_DEAD. So for the purposes of accessing a heap tuple's xmin,
> then we're both right. To the current purpose the tuple has been
> removed, though you are also right: its stub remains.
If we're pruning an index entry to a heap tuple that has been HOT
pruned wouldn't the HOT pruning record have already conflicted with
any queries that could see it?
--
greg
