AGE function

From: Louise Catherine <r1c4n(at)yahoo(dot)com>
To: pgsql-sql(at)postgresql(dot)org
Subject: AGE function
Date: 2005-09-07 05:05:06
Message-ID: 20050907050506.55141.qmail@web33402.mail.mud.yahoo.com
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When I execute this statement :
select AGE(TO_DATE('20041101','yyyymmdd'),
TO_DATE('19991201','yyyymmdd'))

at postgre 7.3.3, the result :
age
---------------------
4 years 11 mons 1 day

at postgre 8.0.3, the result :
age
---------------
4 years 11 mons

My question :
1. How does postgre 7.3.3 calculate AGE function?
2. Why the result produced by postgre 7.3.3
is different from postgre 8.0.3 ?

Thanks,
Louise



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