On Mon, 2005-04-04 at 13:49 +0100, Rob Kirkbride wrote:
> Hi,
>
> I'm trying to fetch out the epoch value of a time, the data type is
> 'timestamp with time zone'. When I do select extract(epoch from time) it
> returns a fractional part as well.
> Am I doing this the correct way? Is the fractional part microseconds?
no, it is fractions of a second.
test=# select extract(epoch from '2005-04-04 14:00:00.000000
+00'::timestamptz);
date_part
------------
1112623200
(1 row)
test=# select extract(epoch from '2005-04-04 14:00:00.123400
+00'::timestamptz);
date_part
-----------------
1112623200.1234
(1 row)
the accuracy probably depends on your platform
gnari
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