Re: age() vs. timestamp substraction

From: Martin Marques <martin(at)bugs(dot)unl(dot)edu(dot)ar>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-sql(at)postgresql(dot)org
Subject: Re: age() vs. timestamp substraction
Date: 2006-10-05 18:43:39
Message-ID: c82791b724c34d828f27af409356eef7@bugs.unl.edu.ar
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On Thu, 05 Oct 2006 14:37:24 -0400, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Martin Marques <martin(at)bugs(dot)unl(dot)edu(dot)ar> writes:
>> I just found this problem with the age() function, which AFAIK should
>> give the same resulte as a subtraction of the argument from now(),
>
> Where did you get that idea? age's reference point is current_date (ie,
> midnight) not now(). There are also some differences in the calculation
> compared to a plain timestamp subtraction.

Ignore anything I said. Just realized it said current_date. :-(

Sorry.

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