extract and time zones

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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