Re: Formatting intervals..
От | Christoph Haller |
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Тема | Re: Formatting intervals.. |
Дата | |
Msg-id | 3E75DB1C.CA0A3F06@rodos.fzk.de обсуждение исходный текст |
Ответ на | Formatting intervals.. (Rajesh Kumar Mallah <mallah@trade-india.com>) |
Ответы |
Re: Formatting intervals..
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Список | pgsql-sql |
> > >>It doesn't make sense. You don't have whole date, so how long should > >>month be? 28? 29? 30? 31? > >> > > > > It does. As long the months between January and October are. > > So > > select age ('10-10-1999'::timestamp , '1-1-1999'::timestamp ) ; > > age > > --------------- > > 9 mons 9 days > > (1 row) > > > Your example above is related to some real date, so we know how many > days each month have. When using interval - we don't know how many days > each month should have. beacuse interval is unrelated to date. > Sorry, but it wasn't my example, it was Mallah's. But of course you're right on "interval is unrelated to date". Regards, Christoph
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