Content-Type: text/plain; charset=UTF-8
Cc: pgsql-docs <pgsql-docs@postgresql.org>
Subject: Re: File_FDW with example
From: Alvaro Herrera <alvherre@commandprompt.com>
To: Joshua Berkus <josh@agliodbs.com>
In-reply-to: <1054372046.268838.1308273696804.JavaMail.root@mail-1.01.com>
References: <1054372046.268838.1308273696804.JavaMail.root@mail-1.01.com>
Date: Fri, 17 Jun 2011 10:00:14 -0400
Message-Id: <1308319114-sup-5494@alvh.no-ip.org>
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Excerpts from Joshua Berkus's message of jue jun 16 21:21:36 -0400 2011:
> (apologies for prior incomplete post.  Webmail spazzed on me).
> 
> Attached is a version of file_FDW.sgml which contains a complete example of how to use it to read your postgresql csv logs.  I think this does some neat tying together of how to use FDWs that the docs are currently lacking.

Interesting ...

The final query is a bit unwieldy.  I wonder if this would work

CREATE TABLE generic_pglog (
  log_time timestamp(3) with time zone,
  user_name text,
  database_name text,
  process_id integer,
  connection_from text,
  session_id text,
  session_line_num bigint,
  command_tag text,
  session_start_time timestamp with time zone,
  virtual_transaction_id text,
  transaction_id bigint,
  error_severity text,
  sql_state_code text,
  message text,
  detail text,
  hint text,
  internal_query text,
  internal_query_pos integer,
  context text,
  query text,
  query_pos integer,
  location text,
  application_name text
);

CREATE FOREIGN TABLE pglog (LIKE generic_pglog) SERVER pglog
OPTIONS ( filename '/home/josh/9.1/data/pg_log/pglog.csv', format 'csv' );

Note that you have a "Not" instead of "now" in the last paragraph.

-- 
Álvaro Herrera <alvherre@commandprompt.com>
The PostgreSQL Company - Command Prompt, Inc.
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