[dbtags] question about connection tag

[Halvorson, Loren]

In the tld for dbtags, the dataSource attribute of connection tag is marked
as rtexprvalue=no.  Is there any reason this couldn't be changed to yes?  We
would like to pass the name of the dataSource in the request as follows, but
it isn't allowed:

    <sql:connection id="conn" dataSource='<%= request.getParameter("db")
%>'/>

Thanks