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Re: to_date() accepts wrong input data

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Andreas Kretschmer <akretschmer(at)spamfence(dot)net>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: to_date() accepts wrong input data
Date: 2012-10-17 14:31:30
Message-ID: 20099.1350484290@sss.pgh.pa.us (view raw or whole thread)
Thread:
Lists: pgsql-general
Andreas Kretschmer <akretschmer(at)spamfence(dot)net> writes:
> Hi,
> I'm a little bit astonished:

> test=*# select to_date('2012/30/03','yyyy/mm/dd');
>   to_date
> ------------
>  2014-06-07
> (1 row)

> test=*# select to_date('2013/02/29','yyyy/mm/dd');
>   to_date
> ------------
>  2013-03-01
> (1 row)

> Bug or feature? Version is 9.2.0

Feature, I'm afraid --- people are used to that behavior, see eg
http://archives.postgresql.org/pgsql-general/2012-10/msg00209.php

If you want tighter checking, don't use to_date, use the regular
datetime input functions (eg, via a cast to date or timestamp).

			regards, tom lane


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