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Setting date and time
- From: George Weaver <gweaver at shaw dot ca>
- To: Cygwin <cygwin at cygwin dot com>
- Date: Fri, 30 Jan 2004 11:20:20 -0600
- Subject: Setting date and time
- References: <013e01c3e05a$6e37e060$6400a8c0@Dell4500> <m37jzbtl2l.fsf@conexa.fciencias.unam.mx> <002a01c3e66b$d39321b0$6400a8c0@Dell4500> <23862.1075394766@sss.pgh.pa.us> <00ac01c3e68d$4c2b9e10$6400a8c0@Dell4500> <24919.1075399207@sss.pgh.pa.us>
Hi All,
I am trying to resolve a problem using PostgreSQL that may have its roots in
Cygwin (see below).
I am running PostgreSQL version 7.3.2 on Windows XP using Cygwin version
1.3.20.
Once the PostgreSQL postmaster has started, if I change the system date on
the PC, and query the database (Select current_date), the result I get is
the date on the system relative to when postmaster started as a service, not
the new date on the PC. Am I missing something really obvious??
test=# select now();
now
----------------------------
2004-01-29 11:25:06.553-06
(1 row)
test=# \!
$ date
Thu Jan 29 11:25:09 CST 2004
$ date 01\25\2004
Sun Jan 25 20:04:00 CST 2004
$ date
Sun Jan 25 20:04:01 CST 2004
$ exit
test=# select now();
now
----------------------------
2004-01-29 11:25:34.032-06
(1 row)
Thanks for your consideration of this request for help.
George
----- Original Message -----
From: "Tom Lane" <tgl@sss.pgh.pa.us>
To: "George Weaver" <gweaver@shaw.ca>
Cc: "Manuel Sugawara" <masm@fciencias.unam.mx>;
<pgsql-novice@postgresql.org>
Sent: Thursday, January 29, 2004 12:00 PM
Subject: Re: [NOVICE] Setting date and time
> George Weaver <gweaver@shaw.ca> writes:
> > >
> Hm, you're running PG under Cygwin then? This must be a Cygwin issue.
> Postgres itself gets the time from the operating system at the start of
> each transaction, and it's going to believe whatever the Cygwin
> implementation of gettimeofday() tells it.
>
> regards, tom lane
>
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