model,object,column,category,row_count,entity_count,non_null_count,null_count,min_time,max_time,time_source
table,table1,value,FIELD,20,1,20,0,0,19,scan
table,table2,site,TAG,20,20,19,1,0,19,scan
table,table2,rack,TAG,20,20,20,0,0,19,scan
table,table2,sensor,TAG,20,20,20,0,0,19,scan
table,table2,reading,FIELD,20,20,15,5,0,19,scan
