"Pavan Deolasee" <pavan(dot)deolasee(at)gmail(dot)com> writes:
> Attached is a patch which should marginally improve the ctid chain followin
> code path when current and the next tuple in the chain are in the same
> block.
It looks to me that you have introduced a buffer leak into
heap_get_latest_tid ... which is quite unlikely to be worth optimizing
anyway. EvalPlanQual is not exactly a performance-critical path either,
and given how hard that code is to understand at all, complicating it
for marginal performance gains seems dubious.
regards, tom lane