Re: extract and time zones

El Fri, 01 Aug 2003 08:19:25 -0700
Dennis Gearon <gearond(at)cvc(dot)net> escribio:

Cut'n paste :P

> Don't know the answer to your question, but how did you type all those commands in one second? :-)
>
> Oscar Estevez Lopez wrote:
>
> > Um, and what about this?
> >
> > $ uname -a
> > FreeBSD caneli 4.7-RELEASE FreeBSD 4.7-RELEASE #1: Fri May 9 02:30:11 CEST 2003 root(at)caneli:/usr/obj/usr/src/sys/CANELI i386
> >
> > $ psql --version
> > psql (PostgreSQL) 7.2.2
> > contains support for: readline, history, multibyte
> > Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
> > Portions Copyright (c) 1996, Regents of the University of California
> > Read the file COPYRIGHT or use the command \copyright to see the
> > usage and distribution terms.
> >
> > create table t1( d timestamp(0) without time zone );
> > CREATE
> >
> > insert into t1 values( current_timestamp );
> > INSERT 26251 1
> >
> >
> > select * from t1;
> > d
> > ---------------------
> > 2003-08-01 13:30:38
> > (1 row)
> >
> > select extract( epoch from d ) from t1;
> > date_part
> > ------------
> > 1059744638
> > (1 row)
> >
> > select extract( epoch from d::timestamp ) from t1;
> > date_part
> > ------------
> > 1059737438
> > (1 row)
> >
> > d : 1059744638
> > d::timestamp : 1059737438
> >
> > ??
> >
> > Does 'epoch from d' check time zone and 'epoch from d::timestamp' doesn't?
> >
> >
> >
> >
> >
>

--

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