RegistryQuery query

[Kevin Benson]

You might not have been at that particular session at the IVOA, but you
can forget about the QueryResource schema now.  The agreement was to use
ADQL (where part only) as the input for a Full Search query.  The ADQL
will be slightly modified to handle XPath though.  Now I am just recently
coming
to grips with ADQL so your question about "NOT" may still be a valid
question, but lets keep it in the context of ADQL.

Thanks,
Kevin

On Tue, 8 Jun 2004, Matthew Graham wrote:

>
> Hi,
>
> I have been looking at the QueryResource schema and was wondering about
> the "not" operand - is it supposed to be an existence operator or test
> whether a particular ResourceXPath is true or false? In either case the
> proposed syntax strikes me as being rather like Reverse Polish:
>
> <ResourceXPath> not
>
> or
>
> <ResourceXPath> not <value = true/false?>
>
> Is it actually supposed to be the <does-not-equal> operator, in which case
> can it be renamed to that?
>
> 	Cheers,
>
> 	Matthew
>
>