> Date: Wed, 28 May 2003 17:30:57 -0400
> From: Ray Denenberg <[log in to unmask]>
> > > dc.creator none "sanderson dovey levan"
> > But we can't express that in Type-1.
> And we can express 'all' and 'any' in type-1?
dc.title all "elements programming"
is equivalent to
@and @attr 1=4 elements @attr 1=4 programming
> In any case, if you can say "any of these words" it follows that you
> can express "none of these words" using boolean and-not.
Not so. For
dc.title none "elements programming"
You'd want to use
@andnot @andnot SOMETHING @attr 1=4 elements @attr 1=4 programming
but we have no SOMETHING in the Type-1 query that allows us to
generate a list of all the records in the database. Put another way,
Type-1 has binary ANDNOT operator, but no unary NOT operator -- which
is what you'd need to map Rob's proposed "none" relation to.
/o ) \/ Mike Taylor <[log in to unmask]> http://www.miketaylor.org.uk
)_v__/\ "Historically, Taunton is part of Minehead already" --
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