From: | Joseph Shraibman <joseph(at)xtenit(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | nolan(at)celery(dot)tssi(dot)com, PostgreSQL General <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: fomatting an interval |
Date: | 2003-05-13 01:45:33 |
Message-ID: | 3EC04E3D.4000305@xtenit.com |
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Thread: | |
Lists: | pgsql-general |
Tom Lane wrote:
>>>>How can I format an interval?
>
>
> Well, there are several possibilities such as to_char() and EXTRACT()
> ...
>
Right, except I don't know what format to use for to_char()
>
>>I want something like the default format but without the milliseconds.
>
>
> ... but for this particular problem, why not just round the given
> interval to an integral number of seconds, by casting it to interval(0)?
>
playpen=# select version();
version
---------------------------------------------------------------------
PostgreSQL 7.3.2 on i686-pc-linux-gnu, compiled by GCC egcs-2.91.66
(1 row)
playpen=# begin;
BEGIN
playpen=# create table timetable (start timestamp, finish timestamp);
CREATE TABLE
playpen=# insert into timetable values('2003-05-12 21:37:44.933', '2003-05-12 21:39:14.752');
INSERT 1648889 1
playpen=# select start, finish, (finish-start),(finish-start)::interval(0) from timetable;
start | finish | ?column? | interval
-------------------------+-------------------------+--------------+--------------
2003-05-12 21:37:44.933 | 2003-05-12 21:39:14.752 | 00:01:29.819 | 00:01:29.819
(1 row)
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