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RE: off-topic question on cursors

From: Orri Erling <erling@xs4all.nl>
Date: Mon, 11 Jan 2010 21:06:37 +0100
Message-Id: <201001112007.o0BK74Lr020616@smtp-vbr13.xs4all.nl>
To: "'Axel Polleres'" <axel.polleres@deri.org>, "'SPARQL Working Group'" <public-rdf-dawg@w3.org>


Axel

Virtuoso supports cursors over SPARQL result sets over SQL CLI's like JDBC
and ODBC.  There are extension data types for typed literals, distinguishing
between strings and iri's etc.  Then there is a Jena and Sesame compatible
wrapper that has cursors such as these support. 

I do not know of a cursor implementation over HTTP.  OWL QL specifies
something of the sort, though.
een 

Orri


-----Original Message-----
From: public-rdf-dawg-request@w3.org [mailto:public-rdf-dawg-request@w3.org]
On Behalf Of Axel Polleres
Sent: Saturday, January 09, 2010 2:21 AM
To: SPARQL Working Group
Subject: off-topic question on cursors

<chair-hat-off>
an off-topic (for sure off-charter) question:

does any implementation support some form of enhancement of the protocol by
something like cursors
to stream query results one by one or in chunks? If so, how does such
support look 
in current implementations?

thanks still for answers, if any,
Axel
</chair-hat-off>
Received on Monday, 11 January 2010 20:07:33 GMT

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