On 9/26/05, Dennis Bjorklund wrote:
> On Sun, 25 Sep 2005, Tom Lane wrote:
>>
>> Alternatively: why are we forbidding the value 24:00:00 anyway? Is
>> there a reason not to allow the hours field to exceed 23?
>
> One reason is because it's what the standard demand.
Could you cite that? The only thing I can find in the SQL standard is
that the hour field in an INTERVAL can not exceed 23, not datetimes.
> Another is that it
> isn't a proper time, just like feb 31 isn't a proper date.
IIRC ISO 8601 (to whcih the SQL standard points) says
2005-10-01T24:00:00 is valid (and happens to be the same as
2005-10-02T00:00:00). It does seem a bit inconsistent with the spec of
an interval though.
Jochem
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