Re: fomatting an interval

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От lyris-pg@tibit.com
Тема Re: fomatting an interval
Дата
Msg-id 8rsqcv87sac2c1hh6nqkg0dj4cminlbo7r@4ax.com
обсуждение исходный текст
Ответ на Re: fomatting an interval (resend)  (greg@turnstep.com)
Ответы Re: fomatting an interval (resend)
How to enumerate foreign key constraints after migrating from 7.1.3?
Список pgsql-general
>> Okay, so extract() doesn't fit the bill either.  How do I get the
>> difference between two timestamps in terms of days, expressed as an
>> integer?  Moreover, how do I get any interval expressed in those
>> terms?
>
>select round((extract(epoch from finish) - extract(epoch from start))/(60*60*24))
>  from timetable;

How would the following differ from the query above?

select round(extract(epoch from (finish - start))/(60*60*24)) from
timetable;


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