use of pg_stat_database

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

On Tue, Jun 30, 2009 at 7:13 AM, abdelhak
benmohamed<abdelhak.benmohamed@yahoo.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