Realised I had linked the wrong version, correct link is below:
https://www.dropbox.com/s/knudzewbiuqkqvy/SPARQL%20Optimisation%20101%20Tutorial.pptx?dl=0
Apologies for the confusion,
Rob
On 18/03/2021, 14:37, "Rob Vesse" <rve...@dotnetrdf.org> wrote:
Steve
Think I've shared this before on-list, I produced a slide deck a long time
ago (2014) that covers this topic more focused on ARQ
https://www.dropbox.com/s/ixetdcfesqse893/SPARQL%20Optimization%20101.pptx?dl=0
Some of the details have changed in the interim (e.g. new optimizations
added, default order of optimizations changed etc) but a lot of the core
material is still relevant
I would also recommend Pavel's talk that Andy linked, as Andy says it
covers the need for query authors to frame their queries appropriately but it
also goes into more depth around some of the core low level implementation
details of SPARQL engines e.g. join types
Rob
On 18/03/2021, 14:20, "Andy Seaborne" <a...@apache.org> wrote:
On 17/03/2021 22:45, Steve Vestal wrote:
> I'd like to dig a bit deeper into SPARQL query performance, better
> understand how different query formulations affect that, how ARQ
> configuration parameters might be used to tune that. Can anyone
> recommend a place to start reading beyond the SPARQL book and
language
> definition?
Hi Steve,
It's a bit "it depends on the query.
There was a presentation recently and while its not about ARQ, the
fundamental point that getting the basic graph pattern matching working
efficiently applies.
http://www.lotico.com/index.php/SPARQL_Query_Optimization_with_Pavel_Klinov
Do you have specific queries in mind or is this a general enquiry?
Andy
