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SPARQL Wishlist

From: Jürgen Jakobitsch <juergen.jakobitsch@semantic-web.com>
Date: Mon, 1 Apr 2019 15:55:09 +0200
Message-ID: <CAETaefz72M76COhoyHGDuMNGR-JoXwD+9qZVdJVVczUsG7QOdg@mail.gmail.com>
To: public-sparql-12@w3.org
hi there,

as indicated by andy, we should carry on with this conversation on the
public mailing list..

i hereby restart the thread with my wishlist (i'm pretty sure there also
will be wiki page or other means to collect suggestions in the near future)

1. as a sucker of query optimization and the grand reducer of joins of
whatever sort, i really, really would appreciate
   execution sequence hints or at the very least FROM in subqueries and
related a well defined sequence of what comes first: SERVICE or subselect.
2. as a sucker of "words are flowing out like endless rain" (beatles:
across the universe) i fully support any forms of stream capabilities. rdf
is just made
    for streams, a query type a la STREAM ?x FROM <http..> WHERE { ...
3. sometimes also very little things are required: a sequence (per group or
the whole result).. (this is for example possible with virtuoso)
4. vectorization on the fly would also be neat, we wanna do cool stuff like
ML, cooccurences, linguistic statistics,... don't we?
5. "split"..
   or in general "set creating" functions.. this is usually only possible
with custom function these days, rdf4j for example requires usage of an
extended evaluation strategy, stardog can do it with custom function,
   as well as virtuoso with PL/SQL.. my preferred option would be "split by

mtfbwy j

*Jürgen Jakobitsch*
Senior Technical Consultant
Semantic Web Company GmbH
EU: +43-14021235 <+43%201%204021235>
US: (415) 800-3776
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Received on Monday, 1 April 2019 13:55:43 UTC

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