SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function arrayFold (children 1)
     ExpressionList (children 3)
      Function lambda (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList (children 2)
          Identifier acc
          Identifier x
        Function plus (children 1)
         ExpressionList (children 2)
          Identifier acc
          Function multiply (children 1)
           ExpressionList (children 2)
            Identifier x
            Literal UInt64_2
      Literal Array_[UInt64_1, UInt64_2, UInt64_3, UInt64_4]
      Function toInt64 (children 1)
       ExpressionList (children 1)
        Function toNullable (children 1)
         ExpressionList (children 1)
          Literal UInt64_3
