SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function arrayMap (children 1)
     ExpressionList (children 2)
      Function lambda (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList (children 1)
          Identifier x
        Function array (children 1)
         ExpressionList (children 3)
          Function multiply (children 1)
           ExpressionList (children 2)
            Identifier y
            Literal UInt64_2
          Function plus (alias y) (children 1)
           ExpressionList (children 2)
            Identifier x
            Literal UInt64_1
          Literal UInt64_1 (alias z)
      Literal Array_[UInt64_1, UInt64_2]
    Identifier y
