From: Erik Wasser <erik.wasser@iquer.net>
To: pgsql-sql@postgresql.org
Subject: Howto turn an integer into an interval?
Date: Tue, 5 Oct 2004 14:07:41 +0200
Message-ID: <200410051407.42037.erik.wasser@iquer.net> (raw)
Hi List,
I got a table named foobar with two fields
last_sms is a 'timestamp without timezone'
resend_interval is a 'integer'
I choose 'integer' for resend_interval rather than a 'interval' because
the frontend can easier handle the number of seconds. But now I'm stuck
with the query to get all rows that we're older than 'resend_interval'
in seconds.
My first try was:
SELECT *
FROM sms_groups
WHERE
(current_timestamp - last_sms) > '3600 seconds'::interval
This is working great and returns all rows that are older than a hour.
But how I do this with the colum 'resend_interval' in the query?
SELECT *
FROM sms_groups
WHERE
(current_timestamp - last_sms) > resend_interval::interval
gives me only a "cannot cast type integer to interval". So how can I
turn an integer to an interval? Or is there an other solution?
Suggestions?
P.S: I'm using psql '7.4.5' of gentoo.
--
So long... Fuzz
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To: pgsql-sql@postgresql.org
Cc: erik.wasser@iquer.net
Subject: Re: Howto turn an integer into an interval?
In-Reply-To: <200410051407.42037.erik.wasser@iquer.net>
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