Mercurial > hg > nsaunier > traffic-intelligence
view scripts/examples.sql @ 606:75ad9c0d6cc3
update the method to use multi featutes instead on single feature
| author | MohamedGomaa |
|---|---|
| date | Mon, 24 Nov 2014 13:02:10 -0500 |
| parents | d44eba0db517 |
| children |
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# get object id, first and last frame numbers, length and number of features select OF.object_id, min(P.frame_number) as frame1, max(P.frame_number) as frame2, max(P.frame_number)-min(P.frame_number) as length, count(OF.trajectory_id) as nfeatures from positions P, objects_features OF where P.trajectory_id = OF.trajectory_id group by OF.object_id order by nfeatures asc;