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

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

От:
Tom Lane <tgl@sss.pgh.pa.us>
Дата:
sunpeng  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

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

От:
sunpeng <bluevaley@gmail.com>
Дата:
what's the relation between pathkey and path in optimize phase?
thanks
peng
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