Jeff Davis <pgsql@j-davis.com> writes:
> On Sun, 2008-01-13 at 18:52 -0500, Tom Lane wrote:
>> I wonder whether there are any other places that are silently assuming
>> that heapscans start from page zero ...
> I considered that question when implementing sync scans, but I could not
> think of any specific areas of the code that would likely be affected.
I went through all of the heap_beginscan calls in the code last night.
pgstattuple was broken but AFAICS none of the other callers care about
the visitation order. I wonder though about third-party add-ons :-(
regards, tom lane