Received: from localhost (mx1.hub.org [200.46.208.251])
	by postgresql.org (Postfix) with ESMTP id BB0999FB319
	for <pgsql-sql-postgresql.org@postgresql.org>;
	Thu,  5 Oct 2006 01:39:45 -0300 (ADT)
Received: from postgresql.org ([200.46.204.71])
	by localhost (mx1.hub.org [200.46.208.251]) (amavisd-new, port 10024)
	with ESMTP id 15598-10 for <pgsql-sql-postgresql.org@postgresql.org>;
	Thu,  5 Oct 2006 01:39:43 -0300 (ADT)
X-Greylist: domain auto-whitelisted by SQLgrey-
Received: from py-out-1112.google.com (py-out-1112.google.com
 [64.233.166.181])
	by postgresql.org (Postfix) with ESMTP id A97099FB207
	for <pgsql-sql@postgresql.org>; Thu,  5 Oct 2006 01:39:42 -0300 (ADT)
Received: by py-out-1112.google.com with SMTP id d80so551312pyd
	for <pgsql-sql@postgresql.org>; Wed, 04 Oct 2006 21:39:40 -0700 (PDT)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com;
	h=received:message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version:content-type:references:x-google-sender-auth;
	b=LAjrTZQGA45V6MP5CKUkT1cuUkb9UrLgk6BDXsiLc0aDuX0WUm/Xp1JJYUpN39c4dUuU6kd32w016EhbEnFA4W/2LSHOUjiDVlfsDyoVnXxG4tOUJo2cZvsqVQMEV18F1poWTkdyyv6My9yxkEJWvojEcEO2XBD5tuv3DznjR2E=
Received: by 10.35.132.13 with SMTP id j13mr2738483pyn;
	Wed, 04 Oct 2006 21:39:40 -0700 (PDT)
Received: by 10.35.78.6 with HTTP; Wed, 4 Oct 2006 21:39:40 -0700 (PDT)
Message-ID: <bf05e51c0610042139t54587d33q374932d62da47ce0@mail.gmail.com>
Date: Wed, 4 Oct 2006 23:39:40 -0500
From: "Aaron Bono" <postgresql@aranya.com>
To: gdavis@refractions.net
Subject: Re: formatting intervals with to_char
Cc: pgsql-sql@postgresql.org
In-Reply-To: <4523F764.80705@refractions.net>
MIME-Version: 1.0
Content-Type: multipart/alternative;
	boundary="----=_Part_2626_26312773.1160023180711"
References: <4522EC42.1080500@refractions.net>
 <4523F764.80705@refractions.net>
X-Google-Sender-Auth: 4adc41055aa5c7c7
X-Virus-Scanned: Maia Mailguard 1.0.1
X-Spam-Status: No, hits=0.419 tagged_above=0 required=5 tests=AWL,
	DNS_FROM_RFC_ABUSE, HTML_MESSAGE, SPF_PASS
X-Spam-Level: 
X-Archive-Number: 200610/54
X-Sequence-Number: 26443

------=_Part_2626_26312773.1160023180711
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

On 10/4/06, Graham Davis <gdavis@refractions.net> wrote:
>
> I haven't heard any replies from this, so in the meantime I've found a
> hacky way to get the output I desire.  I'm basically calculating the
> hours on the fly and piecing together a formatted string with
> concatenations like this:
>
> SELECT
> (((EXTRACT(day from time_idle)*24)+EXTRACT(hour from time_idle)) || ':' ||
>     EXTRACT(minute from time_idle) || ':' || EXTRACT(second from
> time_idle))::interval AS myinterval
> FROM
> ( SELECT ('2006-09-15T23:59:00'::timestamp - '2006-09-01
> 09:30:41'::timestamp) AS time_idle) FROM_TABLE;
>
> If anyone knows a better/proper way to get this result, let me know.



That would be my approach though you could also replace:

EXTRACT(minute from time_idle) || ':' || EXTRACT(second from time_idle)

with:

to_char(time_idle, ':MM:SS')

If you really want to clean up your SQL you could create a function that
takes any timestamp and then make the function IMMUTABLE to tell postgresql
it doesn't need to rederive the results every time.

==================================================================
   Aaron Bono
   Aranya Software Technologies, Inc.
   http://www.aranya.com
   http://codeelixir.com
==================================================================

------=_Part_2626_26312773.1160023180711
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

On 10/4/06, <b class="gmail_sendername">Graham Davis</b> &lt;<a href="mailto:gdavis@refractions.net">gdavis@refractions.net</a>&gt; wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I haven't heard any replies from this, so in the meantime I've found a<br>hacky way to get the output I desire.&nbsp;&nbsp;I'm basically calculating the<br>hours on the fly and piecing together a formatted string with<br>concatenations like this:
<br><br>SELECT<br>(((EXTRACT(day from time_idle)*24)+EXTRACT(hour from time_idle)) || ':' ||<br>&nbsp;&nbsp;&nbsp;&nbsp;EXTRACT(minute from time_idle) || ':' || EXTRACT(second from<br>time_idle))::interval AS myinterval<br>FROM<br>( SELECT ('2006-09-15T23:59:00'::timestamp - '2006-09-01
<br>09:30:41'::timestamp) AS time_idle) FROM_TABLE;<br><br>If anyone knows a better/proper way to get this result, let me know.</blockquote><div><br>&nbsp;</div>That would be my approach though you could also replace:<br><br>EXTRACT(minute from time_idle) || ':' || EXTRACT(second from time_idle)
<br><br>with:<br><br>to_char(time_idle, ':MM:SS')<br><br>If you really want to clean up your SQL you could create a function that takes any timestamp and then make the function IMMUTABLE to tell postgresql it doesn't need to rederive the results every time.
<br></div><br>==================================================================<br>&nbsp;&nbsp; Aaron Bono<br>&nbsp;&nbsp; Aranya Software Technologies, Inc.<br>&nbsp;&nbsp; <a href="http://www.aranya.com">http://www.aranya.com</a><br>&nbsp;&nbsp; <a href="http://codeelixir.com">
http://codeelixir.com</a><br>==================================================================

------=_Part_2626_26312773.1160023180711--