SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function arrayMax (alias res) (children 1)
     ExpressionList (children 2)
      Function lambda (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList (children 1)
          Identifier x
        Function negate (children 1)
         ExpressionList (children 1)
          Identifier x
      Literal Array_[UInt64_1, UInt64_2, UInt64_4]
