From: Bruno Wolff III <bruno@wolff.to>
To: Ray Jackson <rmj@geography.otago.ac.nz>
Cc: pgsql-sql@postgresql.org
Subject: Re: date arithmetic over calender year boundaries
Date: Wed, 28 Apr 2004 01:48:13 -0500
Message-ID: <20040428064813.GB6901@wolff.to> (raw)
In-Reply-To: <1083125554.408f2f328abed@webmail.geography.otago.ac.nz>
References: <1083125554.408f2f328abed@webmail.geography.otago.ac.nz>
On Wed, Apr 28, 2004 at 16:12:34 +1200,
Ray Jackson <rmj@geography.otago.ac.nz> wrote:
> Hi,
>
> The following Postgres 7.1 query extracts aggregated data for an
> arbitrary period within each year for sites in a table containing
> 30 years of temperature data.
It isn't completely clear what you want to do, but you might be able to
use date_part in a where clause to limit the data used for each year
if the range within each year is the same.
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To: pgsql-sql@postgresql.org
Cc: bruno@wolff.to, rmj@geography.otago.ac.nz
Subject: Re: date arithmetic over calender year boundaries
In-Reply-To: <20040428064813.GB6901@wolff.to>
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