Re: fix log_min_duration_statement logic error

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От Bruce Momjian
Тема Re: fix log_min_duration_statement logic error
Дата
Msg-id 200310071656.h97GuZk20298@candle.pha.pa.us
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Ответ на Re: fix log_min_duration_statement logic error  (Peter Eisentraut <peter_e@gmx.net>)
Ответы Re: fix log_min_duration_statement logic error  (Peter Eisentraut <peter_e@gmx.net>)
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Peter Eisentraut wrote:
> Bruce Momjian writes:
>
> > Another idea if you like consistency would be:
> >
> >     LOG:  duration: 4.056 ms  query: select * \nfrom pg_language;
>
> Speaking of consistency...
>
> Imagine someone always having log_statement on and doing some sort of
> aggregate query counting, say like grep '^LOG: query:' | wc -l.  Now that
> someone (or maybe the admin on the night shift, to make it more dramatic)
> also turns on log_min_statement_duration (or whatever it's spelled), say
> to find the slowest queries: grep '^LOG: duration:' | sort -xyz | head
> -10.  In order to guarantee the consistency of both results, you'd have to
> log each query twice in this case.

I guess.

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