Обсуждение: Age() calculation question

I have two timestamps -- start and end. I use age(end,start)
to give me a "session" time and then I subtotal those. If
the total times are less than 24 hours I get a time is the
format of XX:xx:xx -- this is great. But if the time is over
24 hours I get 1 day XX:xx:xx, which really raises hell with
my export to Excel. Any suggestions on how to avoid this
little snag?

Thanks for your help.

Bob Lee
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On Tue, May 10, 2005 at 18:32:39 -0700,
  Bob Lee <bob@cnsisp.com> wrote:
> I have two timestamps -- start and end. I use age(end,start)
> to give me a "session" time and then I subtotal those. If
> the total times are less than 24 hours I get a time is the
> format of XX:xx:xx -- this is great. But if the time is over
> 24 hours I get 1 day XX:xx:xx, which really raises hell with
> my export to Excel. Any suggestions on how to avoid this
> little snag?

You want to do something like:
extract(epoch from (end - start))

That will give you the elapsed time in seconds. You don't want to use
'age' as that will do not nice things if the interval is over 1 month.