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Message Posted: Wed, 10 Jan 2001 @ 23:38:31 GMT

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Subj:   Re: Limited Select
From:   Frank Martinez

Yes, you're right, it's a cost estimate, and I've always used it that way, it's just it's expressed in time units (minutes, seconds or hours). I don't expect it to relate to absolute query time. But when the EXPLAIN lacks a cost estimate, I always assummed that meant that the optimizer couldn't figure it out, but I don't know the rules for when it can and when it can't estimate costs. Anyway, I sure wish someone would address that.


Frank C. Martinez IV

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