Mark Morgan Lloyd <markmll.pgsql-gene...@telemetry.co.uk> writes:
> SELECT to_char(('2011-03-01 12:00' AT TIME ZONE 'GMT0BST')::TIMESTAMP
> WITH TIME ZONE, 'HH24:MI TZ');
> to_char
> -----------
> 12:00 GMT
> (1 row)
You haven't said exactly what you were hoping to accomplish, but I
suspect the point here is to format a time according to some other zone
than the prevailing TimeZone setting. You basically can't do that, at
least not with to_char and the timestamptz data type --- the information
just isn't there. Consider creating a little plpgsql function that
temporarily changes the timezone setting and then calls to_char.
regards, tom lane
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