Re: A pessimistic planner

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От Tom Lane
Тема Re: A pessimistic planner
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Msg-id 21114.1416546725@sss.pgh.pa.us
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Ответ на A pessimistic planner  (Stuart Bishop <stuart@stuartbishop.net>)
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Stuart Bishop <stuart@stuartbishop.net> writes:
> I was wondering if the planner should be much more pessimistic,
> trusting in Murphy's Law and assuming the worst case is the likely
> case? Would this give me a much more consistent system?

Well, it would give uniformly awful plans for cases where fast-start
plans are actually useful ... and there are plenty.

We do need to think of ways to account for risk, but I don't think
that jamming the tiller all the way over is likely to be a net
improvement.

            regards, tom lane


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