[SQL] Running mean filtering using Window Functions? -
04-26-2012
, 04:22 AM
Hi,
can I realize a running mean filter using window functions?
What I can think of is:
SELECT avg(random) OVER (PARTITION BY floor(time_s / 60) ORDER BY floor(time_s / 60))
FROM (
SELECT generate_series(0,600,20) time_s, random()
) as data;
which averages all measurements in one minute, but not every line with its following two lines.
Any suggestions?
Best regards
Andreas
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