SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 7)
    Identifier tadig
    Identifier ts
    Identifier dow
    Function sumMerge (children 1)
     ExpressionList (children 1)
      Identifier traffic_bytes
    Function maxMerge (children 1)
     ExpressionList (children 1)
      Identifier last_stop
    Function minMerge (children 1)
     ExpressionList (children 1)
      Identifier min_radacctid
    Function maxMerge (children 1)
     ExpressionList (children 1)
      Identifier max_radacctid
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier mv_traffic_by_tadig15min
   ExpressionList (children 3)
    Identifier tadig
    Identifier ts
    Identifier dow
