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 toUInt16 (children 1)
         ExpressionList (children 1)
          Function negate (children 1)
           ExpressionList (children 1)
            Identifier x
      Literal Array_[UInt64_1, UInt64_2, UInt64_4]
