Re: strange TIME behaviour

From: Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: strange TIME behaviour
Date: 2007-09-15 12:15:10
Message-ID: 46EBCCCE.6080004@cox.net
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On 09/15/07 06:45, rihad wrote:
> Can someone please explain to me why these two give different results?
> The idea is to get the number of seconds past 00:00:00, so the second
> one is obviously correct.

How about:

select extract(hour from current_time)*3600
+ extract(minute from current_time)*60
+ extract(second from current_time);

> foo=> select extract(epoch from current_time);
> date_part
> --------------
> 42023.026348
> (1 row)
>
> foo=> select extract(epoch from cast(current_time as time));
> date_part
> --------------
> 60030.824587
> (1 row)
>
>
> Isn't current_time already a time? Why is the cast necessary?

- --
Ron Johnson, Jr.
Jefferson LA USA

Give a man a fish, and he eats for a day.
Hit him with a fish, and he goes away for good!

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