SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function javaHashUTF16LE (children 1)
     ExpressionList (children 1)
      Function convertCharset (children 1)
       ExpressionList (children 3)
        Literal \'a1가\'
        Literal \'utf-8\'
        Literal \'utf-16le\'