From: | "Scott Marlowe" <scott(dot)marlowe(at)gmail(dot)com> |
---|---|
To: | "Marcin Krawczyk" <jankes(dot)mk(at)gmail(dot)com> |
Cc: | pgsql-sql(at)postgresql(dot)org |
Subject: | Re: age() function usage |
Date: | 2008-01-25 19:41:15 |
Message-ID: | dcc563d10801251141u3422dc42tf3c57b06a77f19ff@mail.gmail.com |
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Lists: | pgsql-sql |
On Jan 25, 2008 1:06 PM, Marcin Krawczyk <jankes(dot)mk(at)gmail(dot)com> wrote:
> Hi all. I am trying to determine the way to pass a variable/field value to
> an age() function, query looks something like:
>
> SELECT age(timestamp data_zakonczenia_fakt) FROM kip_pracownicy_umowy WHERE
> id_pracownika = 8
>
> data_zakonczenia_fakt being char column equal to say '1993-11-30'.
> Such approach won't work, can anyone tell me the way to do it?
>
> SELECT age(timestamp '1993-11-30') works great.
> Same story with age(timestamp '2008-01-01', timestamp '1993-11-30').
You need an explicit cast:
SELECT age(data_zakonczenia_fakt::timestamp) FROM kip_pracownicy_umowy
WHERE id_pracownika = 8
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