Re: Subselect and limit/order?

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От Philip Warner
Тема Re: Subselect and limit/order?
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Msg-id 3.0.5.32.20000808162456.02832bf0@mail.rhyme.com.au
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Ответ на Subselect and limit/order?  (Philip Warner <pjw@rhyme.com.au>)
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At 11:46 7/08/00 -0400, Tom Lane wrote:
>
>I'd say mostly an executor problem, actually.  Nobody's figured out
>where the executor would need to be hacked to support tuple-limits
>applied elsewhere than the top level of a select.

Shouldn't the optimizer be able to get some benefit (in colun select
expressions at least) by being able to do an implied 'limit 2'?





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