On Wed, Dec 12, 2012 at 1:35 AM, Robert Haas <robertmhaas@gmail.com> wrote:
> On Tue, Dec 4, 2012 at 12:10 PM, Pavan Deolasee
> <pavan.deolasee@gmail.com> wrote:
>> Hmm. Yeah, I do not have guts to prove that either. I'll probably write up a
>> comment for your consideration to explain why we don't trust PD_ALL_VISIBLE
>> in Hot standby for seq scans, but still trust VM for index-only scans.
>
> Sure.
>
Here is a small patch that adds comments to heap scan code explaining
why we don't trust the all-visible flag in the page, still continue to
support index-only scans on hot standby.
Thanks,
Pavan
--
Pavan Deolasee
http://www.linkedin.com/in/pavandeolasee