Simon Riggs <simon@2ndquadrant.com> writes:
> Hmmm.... I'm slightly worried that frequently-churning small tables will
> be made even slower by this. What do you think?
How so?
> So we would be able to cache other items also?
Only to the extent that you can guarantee a stale cache entry isn't a
problem. We've already done the analysis involved for the existing
metapage entries, but anything else would require more thought. (And
more cache flush events.)
> For that case we'd save N block accesses to locate the rightmost leaf
> page.
Surely you mean log(N).
regards, tom lane