Re: Running update in chunks?

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От patrick keshishian
Тема Re: Running update in chunks?
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Msg-id CAN0yQBruwRuETXecK3JZRewXjyWNWr-r+KDD3F0aBK4xw40eVQ@mail.gmail.com
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Ответ на Re: Running update in chunks?  (Tim Uckun <timuckun@gmail.com>)
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On Mon, Jan 21, 2013 at 1:48 PM, Tim Uckun <timuckun@gmail.com> wrote:
>> I'd be curious to see results of the same "update" on a standard HDD
>> vs the SSD, and maybe on a more typical database deployment hardware
>> vs a macbook air.
>>
>
>
> I haven't tried it on any other machine yet.  CREATE TEMP TABLE tt as
> SELECT ...  takes eight seconds so presumably the disk is not the
> choke point.

you are making an assumption that a fresh write is the same as a
re-write. try the test.

--patrick


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