Lists: | pgsql-hackers |
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From: | abdelhak benmohamed <abdelhak(dot)benmohamed(at)yahoo(dot)fr> |
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To: | pgsql-hackers(at)postgresql(dot)org |
Subject: | use of pg_stat_database |
Date: | 2009-06-30 11:13:47 |
Message-ID: | 633560.69013.qm@web24206.mail.ird.yahoo.com |
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Lists: | pgsql-hackers |
Hellow,
I like to track the number of committed transaction for my database
So I use the following command
Select * from pg_stat_database;
The column xact_commit gives me the number of transaction committed
But if I execute the same command another time, the column xact_commit gives me an other number.
Between the first select and the second select I don’t execute any transaction on my database
Please, can any one help me to understanding the cause of the change?
Thanks very much
From: | "A(dot) Kretschmer" <andreas(dot)kretschmer(at)schollglas(dot)com> |
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To: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: use of pg_stat_database |
Date: | 2009-06-30 11:34:58 |
Message-ID: | 20090630113458.GG19653@a-kretschmer.de |
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Lists: | pgsql-hackers |
In response to abdelhak benmohamed :
> Hellow,
>
>
>
> I like to track the number of committed transaction for my database
>
> So I use the following command
>
> Select * from pg_stat_database;
>
>
>
> The column xact_commit gives me the number of transaction committed
>
>
>
> But if I execute the same command another time, the column xact_commit gives me
> an other number.
I can't reproduce that:
test=*# Select sum(xact_commit) from pg_stat_database;
sum
-------
73470
(1 row)
-- 5 minutes later:
test=*# Select sum(xact_commit) from pg_stat_database;
sum
-------
73470
(1 row)
>
>
>
> Between the first select and the second select I don?t execute any transaction
> on my database
Autovacuum?
Andreas
--
Andreas Kretschmer
Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header)
GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net
From: | Merlin Moncure <mmoncure(at)gmail(dot)com> |
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To: | abdelhak benmohamed <abdelhak(dot)benmohamed(at)yahoo(dot)fr> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: use of pg_stat_database |
Date: | 2009-06-30 13:26:23 |
Message-ID: | b42b73150906300626w3c6355b9pef9a046e2e0354c9@mail.gmail.com |
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Lists: | pgsql-hackers |
On Tue, Jun 30, 2009 at 7:13 AM, abdelhak
benmohamed<abdelhak(dot)benmohamed(at)yahoo(dot)fr> wrote:
> Hellow,
>
>
>
> I like to track the number of committed transaction for my database
>
> So I use the following command
>
> Select * from pg_stat_database;
>
>
>
> The column xact_commit gives me the number of transaction committed
>
>
>
> But if I execute the same command another time, the column xact_commit gives
> me an other number.
>
>
>
> Between the first select and the second select I don’t execute any
> transaction on my database
>
>
>
> Please, can any one help me to understanding the cause of the change?
try turning on statement logging (log_statement='all'). please post
q&a time questions to -general.
merlin