Re: [SQL] CURRENT_TIMESTAMP

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Martijn van Oosterhout <kleptog(at)svana(dot)org>
Cc: Manfred Koizar <mkoi-pg(at)aon(dot)at>, Roland Roberts <roland(at)astrofoto(dot)org>, pgsql-sql(at)postgresql(dot)org, pgsql-general(at)postgresql(dot)org
Subject: Re: [SQL] CURRENT_TIMESTAMP
Date: 2002-09-29 03:51:32
Message-ID: 200209290351.g8T3pW920188@candle.pha.pa.us
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Martijn van Oosterhout wrote:
> On Sat, Sep 28, 2002 at 11:28:03PM -0400, Bruce Momjian wrote:
> >
> > OK, we have two db's returning statement start time, and Oracle 8 not
> > having CURRENT_TIMESTAMP.
> >
> > Have we agreed to make CURRENT_TIMESTAMP statement start, and now()
> > transaction start? Is this an open item or TODO item?
>
> Well, I'd rather it didn't change at all. IMHO it's a feature, not a bug. In
> any case, if it does get changed we'll have to go through the documentation
> and work out whether we mean current_timestamp or now(). I think most people
> actually want now().

Well, I think we have to offer statement start time somewhere, and it
seems the standard probably requires that. Two other databases do it
that way. Oracle doesn't have CURRENT_TIMESTAMP in 8.X. Can anyone
test on 9.X?

> Fortunatly where I work we only use now() so it won't really matter too
> much. Is there a compelling reason to change?

Yes, it will split now() and CURRENT_TIMESTAMP. I personally would be
happy with STATEMENT_TIMESTAMP, but because the standard requires it we
may just have to fix CURRENT_TIMESTAMP.

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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