From: Edward Ross <efrossuhl@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-sql@postgresql.org
Subject: Re: problem converting strings to timestamps with time zone
Date: Thu, 29 Apr 2010 00:59:09 -0700
Message-ID: <4BD93C4D.20807@gmail.com> (raw)
In-Reply-To: <853.1272512343@sss.pgh.pa.us>
References: <4BD8FCA6.1020901@gmail.com>
<853.1272512343@sss.pgh.pa.us>
Tom Lane wrote:
> Edward Ross <efrossuhl@gmail.com> writes:
>> Here is a sandbox example of what I mean.
>
>> CREATE TABLE test_0
>> (
>> string_value varchar(2047),
>> timestamp_value timestamp with time zone
>> );
>
>> insert into test_0
>> (string_value)
>> values
>> ('2010-03-12 17:06:21-0800'),
>> ('2009-08-14 16:47:40+0500'),
>> ('2010-03-22 22:45:59-0400');
>
>> As expected, select * from test_0; , produces the following:
>
>> string_value timestamp_value
>> 2010-03-12 17:06:21-0800 <null>
>> 2009-08-14 16:47:40+0500 <null>
>> 2010-03-22 22:45:59-0400 <null>
>
>> I would like to parse the strings into their equivalent timestamps
>> and put them in the timestamp_value column.
>
>> My attempt, so far, to update the table:
>
>> update value
>> set
>> timestamp_value =
>> to_timestamp(string_value, 'YYYY-MM-DD HH24:MI:SS-XXXX');
>
> Forget to_timestamp; just cast the string to timestamptz. The
> regular timestamp input converter will handle that format fine.
>
> regards, tom lane
>
That worked great.
Thanks very much,
Edward Ross
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To: pgsql-sql@postgresql.org
Cc: efrossuhl@gmail.com, tgl@sss.pgh.pa.us
Subject: Re: problem converting strings to timestamps with time zone
In-Reply-To: <4BD93C4D.20807@gmail.com>
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