Re: Serious Performance Loss in 7.0.2??

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От Tatsuo Ishii
Тема Re: Serious Performance Loss in 7.0.2??
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Msg-id 20000713133112W.t-ishii@sra.co.jp
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Ответ на Re: Serious Performance Loss in 7.0.2??  (Tom Lane <tgl@sss.pgh.pa.us>)
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> All else being equal that is.  Since this is a sort on a char() field,
> perhaps all else is not equal.  In particular I'm suddenly wondering
> if your 7.0 installation was compiled with LOCALE or MULTIBYTE support
> and your 6.5 not.  A few tens of thousands of strcoll() calls to do the
> sort comparisons might account for the slowdown...

Just to clarify, MULTIBYTE never calls strcoll() as far as I know.
--
Tatsuo Ishii


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