SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function lambda (alias lambda) (children 1)
     ExpressionList (children 2)
      Function tuple (children 1)
       ExpressionList (children 2)
        Identifier x
        Identifier y
      Identifier y
   ExpressionList (children 3)
    Function arrayMap (children 1)
     ExpressionList (children 2)
      Function lambda (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList (children 1)
          Identifier x
        Function plus (children 1)
         ExpressionList (children 2)
          Identifier x
          Literal UInt64_1
      Literal Array_[UInt64_1, UInt64_2, UInt64_3]
    Function lambda (children 1)
     ExpressionList (children 2)
      Function tuple (children 1)
       ExpressionList (children 1)
        Identifier x
      Function plus (children 1)
       ExpressionList (children 2)
        Identifier x
        Literal UInt64_1
    Literal UInt64_1 (alias x)