Creating Live Aggregate Projection

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Timbo
Intermediate
Intermediate
Posts: 52
Joined: Thu Jun 21, 2012 11:05 am
Location: London, UK

Re: Creating Live Aggregate Projection

Post by Timbo » Tue Nov 24, 2015 9:45 am

Thanks Sharon, the following worked ok:-
CREATE PROJECTION point_max_lastupdated_agg AS
SELECT instrument_id, element_id ,max(last_updated) AS max_timestamp FROM Phoenix1.Point
group by instrument_id, element_id
KSAFE;

select refresh('PHOENIX1.point');

select make_ahm_now();

Now to see if there are any performance improvements and it is used automatically.

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