<t...@fuzzy.cz> wrote: > So even with 10% of the table, there's a 10% probability to get an > estimate that's 7x overestimated or underestimated. With lower > probability the interval is much wider. Hmmm... Currently I generally feel I'm doing OK when the estimated rows for a step are in the right order of magnitude -- a 7% error would be a big improvement in most cases. Let's not lose track of the fact that these estimates are useful even when they are not dead-on accurate. -Kevin
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