SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    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
          Function length (children 1)
           ExpressionList (children 1)
            Function arrayJoin (children 1)
             ExpressionList (children 1)
              Function array (children 1)
               ExpressionList (children 1)
                Function arrayMap (children 1)
                 ExpressionList (children 2)
                  Function lambda (children 1)
                   ExpressionList (children 2)
                    Function tuple (children 1)
                     ExpressionList (children 1)
                      Identifier y
                    Function plus (children 1)
                     ExpressionList (children 2)
                      Identifier y
                      Literal UInt64_1
                  Literal Array_[UInt64_3]
      Literal Array_[UInt64_1, UInt64_2]
