Re: explain analyze rows=%.0f
От | Simon Riggs |
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Тема | Re: explain analyze rows=%.0f |
Дата | |
Msg-id | 1243950060.23910.58.camel@ebony.2ndQuadrant обсуждение исходный текст |
Ответ на | Re: explain analyze rows=%.0f (Ron Mayer <rm_pg@cheapcomplexdevices.com>) |
Ответы |
Re: explain analyze rows=%.0f
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Список | pgsql-hackers |
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
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