Sum of events over an interval; how?

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От S Dawalt
Тема Sum of events over an interval; how?
Дата
Msg-id 007d01c1b8b2$f4326f40$23b16c82@HP0E2E6GKYFJS4
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Ответы Re: Sum of events over an interval; how?
Список pgsql-general
  I have a number of records having a timestamp when something happened. I am trying to find the number of events (records) that happened per minute over an hour timespan. I just cannot figure out how to do this.  Maybe it's not possible?  Would a plpgsql function be a good idea so that the number of front-end/back-end requests is small?  I'm looking for some output (or maybe temp table) of:
 
Time                Count
2/17/2002 22:00:00    4
2/17/2002 22:01:00    7
2/17/2002 22:02:00   14
....
 
  Any help, even "Can't be done" is appreciated.
 
Shane A. Dawalt
********************************************
Network Engineer
Wright State University
Dayton,  OH   45435    USA
Phone:  937-775-4089
Email:  shane.dawalt@wright.edu

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