Re: [COMMITTERS] pgsql: Teach tuplesort.c about "top N" sorting, in which only the first

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От Tom Lane
Тема Re: [COMMITTERS] pgsql: Teach tuplesort.c about "top N" sorting, in which only the first
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Msg-id 5616.1178304593@sss.pgh.pa.us
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Ответ на Re: [COMMITTERS] pgsql: Teach tuplesort.c about "top N" sorting, in which only the first  ("Guillaume Smet" <guillaume.smet@gmail.com>)
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"Guillaume Smet" <guillaume.smet@gmail.com> writes:
> Is it possible to have something like Sort (disk|top-N|memory) instead
> of Sort?

That would be sane if the decision were fixed at plan time, but it isn't.
What do you think of the add-a-line approach?
        regards, tom lane

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