Re: to_char() accepting invalid dates?

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Thomas Kellerer <spam_eater(at)gmx(dot)net>
Cc: pgsql-sql(at)postgresql(dot)org
Subject: Re: to_char() accepting invalid dates?
Date: 2011-07-18 22:02:27
Message-ID: 201107182202.p6IM2Ri03591@momjian.us
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Thomas Kellerer wrote:
> Jasen Betts wrote on 18.07.2011 11:23:
> >> postgres=> select to_date('20110231', 'yyyymmdd');
> >>
> >> to_date
> >> ------------
> >> 2011-03-03
> >> (1 row)
> >>
> >> is there a way to have to_date() raise an exception in such a case?
> >
> > it's possible the odd behaviour you get is required by some standard.
>
> That would be *very* odd indeed.
>
>
> > jasen=# select '20110303'::date;
> Thanks for the tip, this was more a question regarding _why_ to_char() behaves this way.

Well, to_char() is based on Oracle's to_char(). How does Oracle handle
such a date?

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ It's impossible for everything to be true. +

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