From: Dmitry Tkach <dmitry@openratings.com>
To: Bruno Wolff III <bruno@wolff.to>
Subject: Re: start and end of the week
Date: Thu, 26 Sep 2002 12:29:05 -0400
Message-ID: <3D9335D1.4040807@openratings.com> (raw)
References: <20020926162029.GA23728@wolff.to>
Does any one know what is the reason not to put this logic into date_trunc () function?
It seems to work with pretty much *any* unit imaginable, *except* for 'week'...
Dima
Bruno Wolff III wrote:
> On Thu, Sep 26, 2002 at 11:55:48 -0400,
> Jean-Luc Lachance <jllachan@nsd.ca> wrote:
>
>>How about:
>>
>>select now() - date_part( 'DOW', now()) as starts_on,
>> now() -date_part( 'DOW', now()) + 6 as ends_on;
>>
>
> That won't work in 7.3.
>
> The following works in both 7.2 and 7.3:
> area=> select current_date - extract(dow from current_date)::int as start_date,
> area-> current_date - extract(dow from current_date)::int + 6 as end_date;
> start_date | end_date
> ------------+------------
> 2002-09-22 | 2002-09-28
> (1 row)
>
> Extract returns double precision and so needs a cast to int to work.
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
>
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To: pgsql-sql@postgresql.org
Cc: dmitry@openratings.com, bruno@wolff.to
Subject: Re: start and end of the week
In-Reply-To: <3D9335D1.4040807@openratings.com>
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