Re: application for postgres Log - Mailing list pgsql-general

From Arvind Singh
Subject Re: application for postgres Log
Date
Msg-id BLU164-W175E29AF0D4F7A97C4FE46CA900@phx.gbl
Whole thread Raw
In response to Re: application for postgres Log  ("Albe Laurenz" <laurenz.albe@wien.gv.at>)
Responses Re: application for postgres Log
List pgsql-general
Thanx for the reply,
 
I have enabled the csvlog option.
 
There seem to be 24 columns in the Log. I have difficulty in understanding the following columns
 
- virtual_transaction_id
- transaction_id
- hint
- internal_query
- internal_query_pos
- context
 
I have correlated the column names from log structure mentioned in documentation
 
arvind
 
> Subject: RE: [GENERAL] application for postgres Log
> Date: Mon, 10 Sep 2012 09:31:29 +0200
> From: laurenz.albe@wien.gv.at
> To: arvindps@hotmail.com; pgsql-general@postgresql.org
>
> Arvind Singh wrote:
> > I am in a project that uses PostGresSql v9.0. We are developing an
> application in CSharp to parse the
> > PG server activity log installed on Windows 2003/XP or higher.
> >
> > Our application will :
> > Scan the Log for a given search text and Post rows found
> > Produce statistics related to SQL queries tracked in a time frame
> > Will allow selection of log columns, that can be displayed in a
> DataGrid
> >
> > I need some help or even a simple link that is related to this
> subject. I am already checking Goog
> > query of Postgres Log, though it gives mostly results for the postgres
> Documentation.
>
> Maybe pgreplay can give you some inspiration:
> http://pgreplay.projects.postgresql.org/
>
> Check out parse.c which parses a log file.
>
> One bit of advice I'd like to give you is a recommendation
> to use the CSV log format. The regular error log is much
> harder to parse, and moreover everything that gets printed
> to stderr by the server will end up there. This could be
> dumps when the server runs out of memory or stuff that loaded
> modules produce. All this will screw up your log file
> parsing.
>
> Yours,
> Laurenz Albe

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