Re: Remove xmin and cmin from frozen tuples

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От Josh Berkus
Тема Re: Remove xmin and cmin from frozen tuples
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Msg-id 200509010913.41444.josh@agliodbs.com
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Ответ на Re: Remove xmin and cmin from frozen tuples  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Remove xmin and cmin from frozen tuples  (Tom Lane <tgl@sss.pgh.pa.us>)
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Tom,

> THe only fundamental disadvantage that COPY labors under is having to
> write WAL records.  It might be interesting to do something similar to
> the recent hacks for CREATE TABLE AS, so that a COPY into a table just
> created in the current transaction would skip writing WAL and instead
> fsync the table at the end.

Yes, I thought we discussed doing this for empty tables -- it would be, per 
our tests, a +10% to +30% boost to COPY.

But there was some problem the patch?

-- 
Josh Berkus
Aglio Database Solutions
San Francisco


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