Re: xact_start meaning when dealing with procedures?

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От Vik Fearing
Тема Re: xact_start meaning when dealing with procedures?
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Msg-id 06377729-2567-2516-e249-f789fddfd26a@2ndquadrant.com
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Ответ на Re: xact_start meaning when dealing with procedures?  (Peter Eisentraut <peter.eisentraut@2ndquadrant.com>)
Ответы Re: xact_start meaning when dealing with procedures?  (Peter Eisentraut <peter.eisentraut@2ndquadrant.com>)
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On 09/08/18 20:13, Peter Eisentraut wrote:
> On 09/08/2018 19:57, hubert depesz lubaczewski wrote:
>> I just noticed that when I called a procedure that commits and rollbacks
>> - the xact_start in pg_stat_activity is not updated. Is it intentional?
> 
> It's an artifact of the way this is computed.  The reported transaction
> timestamp is the timestamp of the first top-level statement of the
> transaction.  This assumes that transactions contain statements, not the
> other way around, like it is now possible.  I'm not sure what an
> appropriate improvement would be here.

That would just mean that query_start would be older than xact_start,
but that's okay because the displayed query would be a CALL so we'll
know what's going on.
-- 
Vik Fearing                                          +33 6 46 75 15 36
http://2ndQuadrant.fr     PostgreSQL : Expertise, Formation et Support


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