Re: Date with time zone

timestamptz

On Sat, Nov 28, 2009 at 7:25 PM, silly8888 <silly8888(at)gmail(dot)com> wrote:
> Speaking of timestamps, I think it would be convenient to have a
> single-word alias for "timestamp with time zone". This is the date
> type I use almost exclusively and its name is annoyingly big.
>
>
>
> On Sat, Nov 28, 2009 at 6:57 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> Eduardo Piombino <drakorg(at)gmail(dot)com> writes:
>>> I see current criteria and all the SQL-standard compliance policy, but
>>> wouldn't it still make sense to be able to store a date reference, along
>>> with a time zone reference?
>>> Wouldn't it be useful, wouldn't it be elegant?
>>
>> It seems pretty ill-defined to me, considering that many jurisdictions
>> don't switch daylight savings time at local midnight.  How would you
>> know which zone applied on a DST transition date?
>>
>>> On the other hand, I don't really see the reasons of this statement:
>>> "Although the date type *cannot *have an associated time zone, the time type
>>> can."
>>> Why is this so?
>>
>> Because the SQL committee were smoking something strange that day.
>> You won't find anybody around here who will defend the existence of
>> TIME WITH TIME ZONE.  We only put it in for minimal spec compliance.
>>
>>                        regards, tom lane
>>
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