| From: | S Dawalt <shane(dot)dawalt(at)wright(dot)edu> |
|---|---|
| To: | pgsql-general(at)postgresql(dot)org |
| Subject: | Sum of events over an interval; how? |
| Date: | 2002-02-18 19:32:08 |
| Message-ID: | 007d01c1b8b2$f4326f40$23b16c82@HP0E2E6GKYFJS4 |
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| Lists: | 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(dot)dawalt(at)wright(dot)edu
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