SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function arrayLastIndex (children 1)
     ExpressionList (children 2)
      Function lambda (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList (children 1)
          Identifier x
        Function greater (children 1)
         ExpressionList (children 2)
          Identifier x
          Literal UInt64_3
      Literal Array_[UInt64_1, UInt64_2, UInt64_3]
