Re: pgbench --tuple-size option

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От Andres Freund
Тема Re: pgbench --tuple-size option
Дата
Msg-id 20140815102419.GI28805@awork2.anarazel.de
обсуждение исходный текст
Ответ на Re: pgbench --tuple-size option  (Fabien COELHO <coelho@cri.ensmp.fr>)
Ответы Re: pgbench --tuple-size option  (Fabien COELHO <coelho@cri.ensmp.fr>)
Re: pgbench --tuple-size option  (Fabien COELHO <coelho@cri.ensmp.fr>)
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On 2014-08-15 12:17:31 +0200, Fabien COELHO wrote:
> 
> >>>I don't think it's beneficial to put this into pgbench. There really
> >>>isn't a relevant benefit over using a custom script here.
> >>
> >>The scripts to run are the standard ones. The difference is in the
> >>*initialization* phase (-i), namely the filler attribute size. There is no
> >>custom script for initialization in pgbench, so ISTM that this argument does
> >>not apply here.
> >
> >The custom initialization is to run a manual ALTER after the
> >initialization.
> 
> Sure, it can be done this way.
> 
> I'm not sure about the implication of ALTER on the table storage,

Should be fine in this case. But if that's what you're concerned about -
understandably - it seems to make more sense to split -i into two. One
to create the tables, and another to fill them. That'd allow to do
manual stuff inbetween.

Greetings,

Andres Freund

-- Andres Freund                       http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
Services



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