Re: logging statements in PostgreSQL

From: Jayadevan M <maymala(dot)jayadevan(at)gmail(dot)com>
To: Amit Langote <amitlangote09(at)gmail(dot)com>
Cc: "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: Re: logging statements in PostgreSQL
Date: 2013-09-25 08:59:27
Message-ID: CAFS1N4h0=AK5sd81G4bDQnWxXud0S9XC4kwfvTDeFp47Q6cqcg@mail.gmail.com
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Thanks for the pointer. I do not really want to log the plans of queries,
just the queries, execution time and a couple of other details
(database,user). If I use the auto-explain module, it will end up printing
the plan for all query execution in the log files?

On Wed, Sep 25, 2013 at 1:43 PM, Amit Langote <amitlangote09(at)gmail(dot)com>wrote:

> On Wed, Sep 25, 2013 at 12:18 PM, Jayadevan M
> <maymala(dot)jayadevan(at)gmail(dot)com> wrote:
> > Hi all,
> > I am planning to use pgbadger for analyzing queries. Documentation for
> > pgbadger says "Do not enable log_statement as their log format will not
> be
> > parsed by pgBadger. "
> > I have
> > log_min_duration_statement = 0
> > I do see quite a few SELECTs, INSERTS etc in the log files, function
> calls
> > too, for example.
> > select sp_pg_refresh_alert_data(current_date);
> > But the SELECT and INSERT in the function are not getting logged. Is
> that
> > how PostgreSQL logging works, or I have missed something?
>
> Have a look at auto_explain module which has configuration parameter:
>
> "auto_explain.log_nested_statements (boolean)"
> auto_explain.log_nested_statements causes nested statements
> (statements executed inside a function) to be considered for logging.
> When it is off, only top-level query plans are logged.
>
> http://www.postgresql.org/docs/devel/static/auto-explain.html
>
> --
> Amit Langote
>

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