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* to_date function
@ 2007-09-07 05:22 anru chen <ctx2002@gmail.com>
0 siblings, 2 replies; 5+ messages in thread
From: anru chen @ 2007-09-07 05:22 UTC (permalink / raw)
To: pgsql-sql
Hi all:
i am use postgres 8.2 on windows XP, following select statement
"select to_date('10 August 2007','DD Month YYYY');"
return me 0007-08-10,
if i do "select to_date('10 September 2007','DD Month YYYY');"
result is correct 2007-09-10
seems like "to_date" function only work correctly for current month.
any one know why?
regards,
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: to_date function
@ 2007-09-07 06:17 Phillip Smith <phillip.smith@weatherbeeta.com.au>
parent: anru chen <ctx2002@gmail.com>
1 sibling, 0 replies; 5+ messages in thread
From: Phillip Smith @ 2007-09-07 06:17 UTC (permalink / raw)
To: 'anru chen' <ctx2002@gmail.com>; pgsql-sql
-----Original Message-----
From: pgsql-sql-owner@postgresql.org [mailto:pgsql-sql-owner@postgresql.org]
On Behalf Of anru chen
Sent: Friday, 7 September 2007 15:23
To: pgsql-sql@postgresql.org
Subject: [SQL] to_date function
> Hi all:
>
> i am use postgres 8.2 on windows XP, following select statement
>
> "select to_date('10 August 2007','DD Month YYYY');"
> return me 0007-08-10,
>
> if i do "select to_date('10 September 2007','DD Month YYYY');"
> result is correct 2007-09-10
Try using TO_CHAR instead of TO_DATE if it's just for display purposes (I
assume it is)
If it's for comparison purposes, then just cast to a date either by CAST('10
August 2007' AS date) or '10 August 2007'::DATE
~p
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^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: to_date function
@ 2007-09-07 06:35 A. Kretschmer <andreas.kretschmer@schollglas.com>
parent: anru chen <ctx2002@gmail.com>
1 sibling, 1 reply; 5+ messages in thread
From: A. Kretschmer @ 2007-09-07 06:35 UTC (permalink / raw)
To: pgsql-sql
am Fri, dem 07.09.2007, um 17:22:30 +1200 mailte anru chen folgendes:
> Hi all:
>
> i am use postgres 8.2 on windows XP, following select statement
>
> "select to_date('10 August 2007','DD Month YYYY');"
> return me 0007-08-10,
>
> if i do "select to_date('10 September 2007','DD Month YYYY');"
> result is correct 2007-09-10
>
> seems like "to_date" function only work correctly for current month.
No, seems like to_char only work corrently if the length of the month
correctly...
test=*# select to_date('10 August 2007','DD Month YYYY');
to_date
------------
2007-08-10
(1 row)
test=*# select to_date('10 August 2007','DD Month YYYY');
to_date
------------
0007-08-10
(1 row)
But this is described, see:
http://www.postgresql.org/docs/current/static/functions-formatting.html
,----[ quote ]
| MONTH full uppercase month name (blank-padded to 9 chars)
| Month full mixed-case month name (blank-padded to 9 chars)
| month full lowercase month name (blank-padded to 9 chars)
`----
Andreas
--
Andreas Kretschmer
Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header)
GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: to_date function
@ 2007-09-07 14:25 Tom Lane <tgl@sss.pgh.pa.us>
parent: A. Kretschmer <andreas.kretschmer@schollglas.com>
0 siblings, 1 reply; 5+ messages in thread
From: Tom Lane @ 2007-09-07 14:25 UTC (permalink / raw)
To: A. Kretschmer <andreas.kretschmer@schollglas.com>; +Cc: pgsql-sql@postgresql.org, "anru chen" <ctx2002@gmail.com>
"A. Kretschmer" <andreas.kretschmer@schollglas.com> writes:
> am Fri, dem 07.09.2007, um 17:22:30 +1200 mailte anru chen folgendes:
>> seems like "to_date" function only work correctly for current month.
> No, seems like to_char only work corrently if the length of the month
> correctly...
You need to use FMMonth not Month if you want it to be lax about the
width of the month field. (I think we decided that's a bug and 8.3
will take it either way, but existing releases want the FM.)
regards, tom lane
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: to_date function
@ 2007-09-07 17:41 A. Kretschmer <andreas.kretschmer@schollglas.com>
parent: Tom Lane <tgl@sss.pgh.pa.us>
0 siblings, 0 replies; 5+ messages in thread
From: A. Kretschmer @ 2007-09-07 17:41 UTC (permalink / raw)
To: pgsql-sql
am Fri, dem 07.09.2007, um 10:25:57 -0400 mailte Tom Lane folgendes:
> "A. Kretschmer" <andreas.kretschmer@schollglas.com> writes:
> > am Fri, dem 07.09.2007, um 17:22:30 +1200 mailte anru chen folgendes:
> >> seems like "to_date" function only work correctly for current month.
>
> > No, seems like to_char only work corrently if the length of the month
> > correctly...
>
> You need to use FMMonth not Month if you want it to be lax about the
> width of the month field. (I think we decided that's a bug and 8.3
Oh, cool, it works.
Andreas
--
Andreas Kretschmer
Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header)
GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net
^ permalink raw reply [nested|flat] 5+ messages in thread
end of thread, other threads:[~2007-09-07 17:41 UTC | newest]
Thread overview: 5+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2007-09-07 05:22 to_date function anru chen <ctx2002@gmail.com>
2007-09-07 06:17 ` Phillip Smith <phillip.smith@weatherbeeta.com.au>
2007-09-07 06:35 ` A. Kretschmer <andreas.kretschmer@schollglas.com>
2007-09-07 14:25 ` Tom Lane <tgl@sss.pgh.pa.us>
2007-09-07 17:41 ` A. Kretschmer <andreas.kretschmer@schollglas.com>
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