SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 4)
    Function substring (children 1)
     ExpressionList (children 3)
      Literal \'1234\' (alias arg_1)
      Literal UInt64_2 (alias arg_2)
      Literal UInt64_3 (alias arg_3)
    Identifier arg_1
    Identifier arg_2
    Identifier arg_3
