Re: Tracking last scan time

On Tue, 30 Aug 2022 at 19:46, Bruce Momjian <bruce(at)momjian(dot)us> wrote:

> On Fri, Aug 26, 2022 at 02:05:36PM +0100, Dave Page wrote:
> > On Thu, 25 Aug 2022 at 01:44, David Rowley <dgrowleyml(at)gmail(dot)com> wrote:
> > I don't have a particular opinion about the patch, I'm just pointing
> > out that there are other ways. Even just writing down the numbers on
> a
> > post-it note and coming back in a month to see if they've changed is
> > enough to tell if the table or index has been used.
> >
> >
> > There are usually other ways to perform monitoring tasks, but there is
> > something to be said for the convenience of having functionality built
> in and
> > not having to rely on tools, scripts, or post-it notes :-)
>
> Should we consider using something cheaper like time() so we don't need
> a GUC to enable this?
>

Interesting idea, but on my mac at least, 100,000,000 gettimeofday() calls
takes about 2 seconds, whilst 100,000,000 time() calls takes 14(!) seconds.

--
Dave Page
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Twitter: @pgsnake

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