Re: [SQL] Interval subtracting - Mailing list pgsql-hackers

From Hannu Krosing
Subject Re: [SQL] Interval subtracting
Date
Msg-id 1141281952.3737.17.camel@localhost.localdomain
Whole thread Raw
In response to Re: [SQL] Interval subtracting  (Scott Marlowe <smarlowe@g2switchworks.com>)
Responses Re: [SQL] Interval subtracting
Re: [SQL] Interval subtracting
List pgsql-hackers
Ühel kenal päeval, K, 2006-03-01 kell 14:36, kirjutas Scott Marlowe:

> > But it isn't '-2 months, -1 day'.  I think what you are saying is what I
> > am saying, that we should make the signs consistent.
> 
> Pretty much.  It just seems wrong to have different signs in what is
> essentially a single unit.
> 
> We don't say 42 degrees, -12 minutes when measuring arc, do we?  Then
> again, maybe some folks do.  It just seems wrong to me.

But we do say both "quarter past three" (3 hours 15 min) and "quarter to
four" (4 hours -15 min) when talking about time.

---------------
Hannu




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