SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function topKWeightedState (children 2)
     ExpressionList (children 2)
      Function now (children 1)
       ExpressionList
      Literal Int64_-2
     ExpressionList (children 1)
      Literal UInt64_65535
 Identifier Null