Re: Optimizer questions

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От Tom Lane
Тема Re: Optimizer questions
Дата
Msg-id 1393.1457504120@sss.pgh.pa.us
обсуждение исходный текст
Ответ на Re: Optimizer questions  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Optimizer questions  (Konstantin Knizhnik <k.knizhnik@postgrespro.ru>)
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I wrote:
> BTW, there's some additional refactoring I had had in mind to do in
> grouping_planner to make its handling of the targetlist a bit more
> organized; in particular, I'd like to see it using PathTarget
> representation more consistently throughout the post-scan-join steps.

See 51c0f63e4d76a86b44e87876a6addcfffb01ec28 --- I think this gets
things to where we could plug in additional levels of targets without
too much complication.
        regards, tom lane

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