Re: Improving the Performance of Full Table Updates

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От Tom Lane
Тема Re: Improving the Performance of Full Table Updates
Дата
Msg-id 18887.1191854011@sss.pgh.pa.us
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Ответ на Re: Improving the Performance of Full Table Updates  ("Heikki Linnakangas" <heikki@enterprisedb.com>)
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"Heikki Linnakangas" <heikki@enterprisedb.com> writes:
> We mustn't write data pages before the WAL hits the disk, but we don't
> have any such limitation for WAL.

Um, you're right, I was remembering discussions about trying to mmap
data files.  Still, googling "msync performance" leaves me full of
concern about whether this would be a portable improvement.
        regards, tom lane

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