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Re: Inconsistent time interval formatting

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On 01/13/2011 12:55 PM, Allen Chen wrote:


    That won't really help.  The fundamental point here is that '1 day' is
    not the same concept as '24 hours', because of DST changes; and the
    interval type treats them as different.

    If you don't care about that, you can use justify_hours (I think that's
    the right function) to smash them to the same thing.

    But I suspect the OP's real complaint would be better solved by use of
    to_char() to produce an output format that includes zeroes instead of
    dropping fields that are zero.

                            regards, tom lane


Hi Tom,

I don't understand how DST changes matter for a time interval or how
that could even be factored into calculations.  Could you elaborate on
that?  I had a query today that returned an interval of
70:23:06.935933.  Wouldn't that be at least two days regardless of DST?

Thanks for shining the light on justify_hours, though.  I did not know
that function existed.  That does give me a way to have consistent
output for reporting.

Thanks to everyone who replied!

-Allen


I think to help with this we will need the complete cycle, in other words the queries you are using to generate the intervals as well as the resultant intervals.

--
Adrian Klaver
adrian.klaver@xxxxxxxxx

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