[GENERAL] timestamp wiht time zone
Hi,
i have a column in my table defined like this:
time_stamp timestamp DEFAULT ('now'::text)::timestamp with time zone
Data gets filled in this column from a Unix tools server.
Example values of this field are:
time_stamp
2007-06-27 14:52:14.760133
2007-06-27 15:06:56.90582
I have the following questions on this field.
1. What is the value after the dot (period) at the end. Like 760133 and
90582
2. How does it talk about the time zone.
Also, the reason I'm using time zone is that I have to compare different
values in the tables correctly without any error(s)
based on time zones.
Any kind of help would be greatly appreciated.
Thanks,
~Jas
Re: [GENERAL] timestamp wiht time zone
Jasbinder Singh Bali escribió:
Hi,
i have a column in my table defined like this:
time_stamp timestamp DEFAULT ('now'::text)::timestamp with time zone
Note that the column is of type timestamp, which _doesn't_ have a time
zone. You probably want
time_stamp timestamp with time zone DEFAULT ('now'::text)::timestamp with time
zone
1. What is the value after the dot (period) at the end. Like 760133 and
90582
milliseconds
2. How does it talk about the time zone.
It doesn't because the time zone information is not being stored due to
the datatype issue I mentioned above.
Note: the time zone is not actually stored. What actually happens is
that the value is rotated to GMT and stored as a GMT value, and then
when you extract it from the database it is rotated to the current
TimeZone for display. If you need to store what time zone a value is
in you need to store that information in a separate column.
--
Alvaro Herrerahttp://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.
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Re: [GENERAL] timestamp wiht time zone
Thanks Alvaro,
Your information proved very handy.
~Jas
On 6/27/07, Alvaro Herrera [EMAIL PROTECTED] wrote:
Jasbinder Singh Bali escribió:
Hi,
i have a column in my table defined like this:
time_stamp timestamp DEFAULT ('now'::text)::timestamp with time zone
Note that the column is of type timestamp, which _doesn't_ have a time
zone. You probably want
time_stamp timestamp with time zone DEFAULT ('now'::text)::timestamp with
time zone
1. What is the value after the dot (period) at the end. Like 760133 and
90582
milliseconds
2. How does it talk about the time zone.
It doesn't because the time zone information is not being stored due to
the datatype issue I mentioned above.
Note: the time zone is not actually stored. What actually happens is
that the value is rotated to GMT and stored as a GMT value, and then
when you extract it from the database it is rotated to the current
TimeZone for display. If you need to store what time zone a value is
in you need to store that information in a separate column.
--
Alvaro Herrera
http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.
