Re: Query progress indication - an implementation

On Tue, 2009-06-30 at 07:04 +0200, Dimitri Fontaine wrote:
> Le 30 juin 2009 à 01:34, Greg Stark <gsstark@mit.edu> a écrit :
> > Basically I disagree that imperfect progress reports annoy users. I
> > think we can do better than reporting 250% done or having a percentage
> > that goes backward though. It would be quite tolerable (though perhaps
> > for no logical reason) to have a progress indicator which slows done
> > as it gets closer to 100% and never seems to make it to 100%.
> 
> I guess bad stats are such an important problem in planning queries  
> that a 250% progress is doing more good than harm in showing users how  
> badly they need to review their analyze related settings.

Yeh, I agree. We can define it as "planned work", rather than actual. So
if the progress bar says 250% and query is still going at least you know
it is doing more work, rather than just being slow at doing the planned
work.

-- Simon Riggs           www.2ndQuadrant.comPostgreSQL Training, Services and Support