Aggregates: Largest Groups

From: David Fetter <>
Date: Mon, 22 Mar 2010 15:42:09 -0500
Message-ID: <>


Let's say I have a traffic monitoring system. The stream of data coming in records a timestamp and a speed for each vehicle.

I'd like to know what all the groups of vehicles larger than X whose with average speed over Y is.

Any ideas how to approach this?


David Fetter <>
Phone: +1 415 235 3778  AIM: dfetter666  Yahoo!: dfetter
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Build it, and they will come^Hplain.
Received on Mon Mar 22 2010 - 21:42:09 CET

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