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_1
      Literal Array_[UInt64_1, UInt64_2, UInt64_3]
