Re: what's the relation between pathkey and path in optimize phase?

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От Tom Lane
Тема Re: what's the relation between pathkey and path in optimize phase?
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Msg-id 16824.1273254169@sss.pgh.pa.us
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Ответ на what's the relation between pathkey and path in optimize phase?  (sunpeng <bluevaley@gmail.com>)
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sunpeng <bluevaley@gmail.com> writes:
> what's the relation between pathkey and path in optimize phase?

pathkey is a data structure representing the ordering of a path.
Have you read src/backend/optimizer/README ?

            regards, tom lane

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