Re: [HACKERS] Updating column on row update

From: Hannu Krosing <hannu(at)2ndQuadrant(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Craig Ringer <craig(at)postnewspapers(dot)com(dot)au>, Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>, Thom Brown <thombrown(at)gmail(dot)com>, PGSQL Mailing List <pgsql-general(at)postgresql(dot)org>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: [HACKERS] Updating column on row update
Date: 2009-11-24 08:47:46
Message-ID: 1259052466.30357.64.camel@hvost1700
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On Sun, 2009-11-22 at 18:51 -0500, Tom Lane wrote:
> Craig Ringer <craig(at)postnewspapers(dot)com(dot)au> writes:
> > I do think this comes up often enough that a built-in trigger "update
> > named column with result of expression on insert" trigger might be
> > desirable.
>
> There's something of the sort in contrib already, I believe, though
> it's so old it still uses abstime :-(

What's wrong with abstime ?

it is valid for timestamps up to 2038-01-19 and it's on-disk size
smaller than other timestamp options

--
Hannu Krosing http://www.2ndQuadrant.com
PostgreSQL Scalability and Availability
Services, Consulting and Training

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