_id location_suburb     dev_site     location_desc     sub_location     date     dev_netid     val_raw     val_type     val_description     val_cal     val_offset     dev_type     dev_label     dev_powersource     dev_model     dev_network     loc_lat     loc_lng     val_calibrated     location     devicename     timezone     month     year     dayofweek     colspacer
location_suburb dev_site location_desc sub_location date dev_netid val_raw val_type val_description val_cal val_offset dev_type dev_label dev_powersource dev_model dev_network loc_lat loc_lng val_calibrated location devicename timezone month year dayofweek