Re: Add visibility map information to pg_freespace. - Mailing list pgsql-hackers

On 2013-06-19 10:03:40 +0100, Simon Riggs wrote:
> On 19 June 2013 09:19, Kyotaro HORIGUCHI
> <horiguchi.kyotaro@lab.ntt.co.jp> wrote:
> 
> > It should useful in other aspects but it seems a bit complicated
> > just to know about visibility bits for certain blocks.
> 
> With your current patch you can only see the visibility info for
> blocks in cache, not for all blocks. So while you may think it is
> useful, it is also unnecessarily limited in scope.

pg_freespace should do more than that? Are you thinking of
pg_buffercache?

Greetings,

Andres Freund

-- Andres Freund                       http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
Services