Re: Sort time

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От
Josh Berkus
Тема
Re: Sort time
Дата
Msg-id
200211151318.33245.josh@agliodbs.com
Ответ на
Re: Sort time (Rod Taylor)
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Дерево обсуждения
Re: Sort time pginfo <pginfo@t1.unisoftbg.com>

Rod,

> > Hmmm ... how big *is* that varchar field?  8 characters gives us about 6mb 
for 
> > the column.  Of course, if it's a 128-char global unque id, that;s a bit 
> > larger.
> 
> 20 characters long in the Unicode locale -- which is 40 bytes?

Well, 40+, probably about 43.    Should be about 29mb, yes?
Here's a question: is the total size of the column a good indicator of the 
sort_mem required?   Or does the rowsize affect it somehow?

-- 
-Josh Berkus

______AGLIO DATABASE SOLUTIONS___________________________
                                        Josh Berkus
   Complete information technology 	josh@agliodbs.com
    and data management solutions 	(415) 565-7293
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