Tom Lane wrote:
> Bruce Momjian <[EMAIL PROTECTED]> writes:
> > A function seems like the wrong way to go on this.  SET has super-user
> > protections we could use to control this but I am not sure what SET
> > syntax to use.
> 
> I don't like SET for it --- SET is for setting state that will persist
> over some period of time, not for taking one-shot actions.  We could
> perhaps use a function that checks that it's been called by the
> superuser.
> 
> However, the real question is what is the use-case for this feature
> anyway.  Why should people want to reset the stats while the system
> is running?  If we had a clear example then it might be more apparent
> what restrictions to place on it.

Yep, I think Andrew explained possible uses. You may want to reset the
counters and run a benchmark to look at the results.

Should we have RESET clear the counter, perhaps RESET STATCOLLECTOR?
I don't think we have other RESET variables that can't be SET, but I
don't see a problem with it.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  [EMAIL PROTECTED]               |  (610) 853-3000
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