Re: date_trunc for 5 minutes intervals

Hi,

Thanks for the several replies both on and off the list.

To be more specific, I am wanting to aggregate data to a 5/10/15 min
interval. Currently, I am aggregating data that falls in hour / day /
month / year periods for both count() and sum(). The sql I am currently
using is:

SELECT count(id) AS count, sum(conn_bytes) AS
sum, hisec_port, conn_protocol,
date_trunc('hour'::text, datetime) AS date_trunc
FROM trafficlogs
WHERE (conn_outbound = false)
GROUP BY date_trunc('hour'::text, datetime),
conn_protocol, hisec_port
HAVING (count(*) = ANY (
SELECT count(*) AS count
FROM trafficlogs
GROUP BY hisec_port, date_trunc('hour'::text, datetime)
ORDER BY count(*) DESC)
);

Which produces:

count sum hisec_portconn_protocol date_trunc
12 192 5,050 2003/09/17 00:00:00
11 176 5,050 2003/09/17 01:00:00
12 192 5,050 2003/09/17 02:00:00
11 176 5,050 2003/09/17 03:00:00
10 160 5,050 2003/09/17 04:00:00

- if you know of a more efficient way to do this than the sql above, pls
let me know

In my previous post I should have said I wanted to aggregating data in
5/10/15 min intervals in a similar manner to the above