Re: [HACKERS] 64-bit queryId?

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От Peter Geoghegan
Тема Re: [HACKERS] 64-bit queryId?
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Msg-id CAH2-Wzm-+OfCp2Fycd4ZSVYEw_U0HiW4BQ1EeDsm-H4mf5LS-Q@mail.gmail.com
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Ответ на Re: [HACKERS] 64-bit queryId?  (Peter Geoghegan <pg@bowt.ie>)
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On Sat, Sep 30, 2017 at 8:39 AM, Peter Geoghegan <pg@bowt.ie> wrote:
> Isn't that already true in the case of queryId? I've never heard any
> complaints about collisions. Most people don't change
> pg_stat_statements.max, so the probability of a collision is more like
> 1%. And, that's the probability of *any* collision, not the
> probability of a collision that the user actually cares about. The
> majority of entries in pg_stat_statements among those ten thousand
> will not be interesting.

Correction: ten thousand is an example value of pg_stat_statements.max
in the docs, not the default value. The default is five thousand.

-- 
Peter Geoghegan


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