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Message-ID: <47A12CCB.1000807@ucsd.edu>
Date: Wed, 30 Jan 2008 18:04:59 -0800
From: Luca Clementi <lclement@ucsd.edu>
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To: pgsql-sql@postgresql.org
Subject: Re: Problem with the to_timestamp function
References: <47A10A1D.5020408@ucsd.edu> <27257.1201739170@sss.pgh.pa.us>
In-Reply-To: <27257.1201739170@sss.pgh.pa.us>
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Tom Lane wrote:
> Luca Clementi <lclement@ucsd.edu> writes:
>> It seems that the to_timestamp does not work properly in this case, 
>> when it comes to parsing the hours.
> 
> to_timestamp() is not very robust if the input doesn't exactly match
> what it expects for the format string.  I'm not sure if that's the
> issue here, but have you tried just casting the string to timestamp?
> That would use the standard timestamp input converter, which is
> pretty flexible.
> 
> (BTW, there is definitely 0 hope of recognizing a timezone name that's
> written in Chinese characters, unless maybe you fool around with the
> timezone-abbreviations configuration file.)
> 

I found the problem!!

to_timestamp(start_time, 'M DD, YYYY  HH12:MI:SS')
                                   ^^^^^^
in the formatting string I have two spaces, while in the original there 
is only one:
1 28, 2008 12:23:19 午後

So if I use: 'M DD, YYYY HH12:MI:SS' as a formatting string it works!
I wander how come if the formatting string doesn't match properly you 
get such a bad behavior, would it better just a error?


PS: some e-mail clients do not render properly the spacing in my first 
e-mail.

Thanks again for your help!!
Luca