Updatable query and column aliases

Hi folks.

I cant moveToInsertRow when use queries with assigned names in select
list.

Following code works good:

     stmt = connection.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,
                                       ResultSet.CONCUR_UPDATABLE);
     rs = stmt.executeQuery("select id from test");
     rs.moveToInsertRow();

, but then I change query to "select id val from test" exception "The
column name id was not found in this ResultSet." raised on
moveToInsertRow.

Is it any limitation on updatable queries?

--
Anton