Is there a way to make FILTER(REGEX(?label, 'Insurance, Health/utilization',
'I')) queries fast?
I can see that REGEX is going to require a linear scan of the data, and that
there are stored functions that do the matching.
Will STRSTARTS be able to work quickly? Does the database collation allow
case insensitive matching with STRSTARTS?
Does one require a license for Virtuoso to use Full-text bif:contains (which is
not quite the same as REGEX, of course)?
Dan Davis, Systems/Applications Architect (Contractor),
Office of Computer and Communications Systems,
National Library of Medicine, NIH
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