SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function accurateCastOrDefault (children 1)
     ExpressionList (children 2)
      Literal \'123\'
      Literal \'FixedString(2)\'
    Function accurateCastOrDefault (children 1)
     ExpressionList (children 3)
      Literal \'123\'
      Literal \'FixedString(2)\'
      Function CAST (children 1)
       ExpressionList (children 2)
        Literal \'12\'
        Literal \'FixedString(2)\'
