SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function in (children 1)
     ExpressionList (children 2)
      Function arrayReduce (children 1)
       ExpressionList (children 2)
        Literal \'avgState\'
        Literal Array_[UInt64_0]
      Function tuple (children 1)
       ExpressionList (children 2)
        Function arrayReduce (children 1)
         ExpressionList (children 2)
          Literal \'avgState\'
          Literal Array_[UInt64_0, UInt64_1]
        Function arrayReduce (children 1)
         ExpressionList (children 2)
          Literal \'avgState\'
          Literal Array_[UInt64_0]
