Re: Interval subtracting - Mailing list pgsql-sql

From Milen A. Radev
Subject Re: Interval subtracting
Date
Msg-id 43F72E27.2060408@radev.net
Whole thread Raw
In response to Interval subtracting  (Milorad Poluga <milorad.poluga@cores.co.yu>)
Responses Re: Interval subtracting  (Milorad Poluga <milorad.poluga@cores.co.yu>)
List pgsql-sql
Milorad Poluga написа:
> Hi all,
> 
> Is there something incorrect in the above query ? 
> SELECT '10 years 1 mons 1 days'::interval - '9 years 10 mons 15 days'::interval
> 
>  ?column?        
>  --------------- 
>  3 mons -14 days 
> 
> Why not '2 mons  16 days' ? 
> 
> /version =  PostgreSQL 8.0.4 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.4.2 20041017 (Red Hat 3.4.2-6.fc3) /


How many days are there in a month?

-- 
Milen A. Radev



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