On Mon, 2009-06-01 at 20:30 -0700, Ron Mayer wrote:
> What I'd find strange about "6.67 rows" in your example is more that on
> the estimated rows side, it seems to imply an unrealistically precise estimate
> in the same way that "667 rows" would seem unrealistically precise to me.
> Maybe rounding to 2 significant digits would reduce confusion?
You're right that the number of significant digits already exceeds the
true accuracy of the computation. I think what Robert wants to see is
the exact value used in the calc, so the estimates can be checked more
thoroughly than is currently possible.
-- Simon Riggs www.2ndQuadrant.comPostgreSQL Training, Services and Support