Edward Ross <efross...@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
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