On 11/04/2014 04:04 PM, Marko Tiikkaja wrote:
> On 11/5/14, 12:59 AM, Tom Lane wrote:
>> Marko Tiikkaja <ma...@joh.to> writes:
>>> So I got into thinking whether it would make sense to provide a new
>>> function, say, to_char_at_timezone() to solve this problem.  For
>>> example:
>>> ...
>>> Any thoughts?  The patch is quite trivial.
>>
>> I'm not convinced that it's all that trivial.  Is the input timestamp or
>> timestamptz, and what's the semantics of that exactly (ie what timezone
>> rotation happens)?  One's first instinct is often wrong in this area.
> 
> In my example, the input is a "timestamptz", and the output is converted
> to the target time zone the same way timestamptz_out() does, except
> based on the input timezone instead of TimeZone.
> 
> Not sure whether it would make sense to do this for "timestamp", or
> whether there's even a clear intuitive behaviour there.

Why wouldn't we just add the timezone as an additional parameter?

-- 
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com


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