Re: pg_stat_tmp file

On Fri, May 3, 2013 at 5:09 PM, Rodrigo Barboza <rodrigombufrj@gmail.com> wrote:
> Hi, guys.
> Postgres doc says it is better to place the pgstat.stat file in ram disk.
> And it says that at shutdown, it is copied to global.
> What happens if postgres do not shutdown the usual way?
> If machine loses power, for example...

PostgreSQL always discards the statistics file on an unclean shutdown,
such as a powerloss, regardless of where it's stored. Therefor, it's
not a problem that it's stored on a ramdrive. This is because it
cannot be guaranteed to be consistent in that case.


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