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To: Tom Ivar Helbekkmo <tih@kpnQwest.no>
cc: Vince Vielhaber <vev@michvhf.com>, Roman Smirnov <smirnov@dresearch.de>,
	PostgreSQL conferention <pgsql-docs@postgresql.org>
Subject: Re: SQL query: List all the databases in the server 
In-reply-to: <86zoamdwbz.fsf@athene.i.eunet.no> 
References: <Pine.BSF.4.30.0107030740100.56876-100000@paprika.michvhf.com>
	<86zoamdwbz.fsf@athene.i.eunet.no>
Comments: In-reply-to Tom Ivar Helbekkmo <tih@kpnQwest.no>
	message dated "03 Jul 2001 14:35:28 +0200"
Date: Tue, 03 Jul 2001 10:45:49 -0400
Message-ID: <18380.994171549@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
X-Archive-Number: 200107/7
X-Sequence-Number: 856

Tom Ivar Helbekkmo <tih@kpnQwest.no> writes:
> The above SELECT is extensively reformatted from the strings it's
> built from in the source file, of course.

An even easier way to see what queries psql emits for its backslash
commands is to start psql with -E option, then do the backslash
commands.  This gives me, for example,

regression=# \l
********* QUERY **********
SELECT pg_database.datname as "Database",
       pg_user.usename as "Owner"FROM pg_database, pg_user
WHERE pg_database.datdba = pg_user.usesysid

UNION

SELECT pg_database.datname as "Database",
       NULL as "Owner"FROM pg_database
WHERE pg_database.datdba NOT IN (SELECT usesysid FROM pg_user)
ORDER BY "Database"
**************************

   List of databases
  Database  |  Owner
------------+----------
 regression | postgres
 template0  | postgres
 template1  | postgres
(3 rows)

regression=#

			regards, tom lane