Thank you!
On 03/08/2021 22:07, Cristóbal Miranda wrote:
Hi Andy,
Q1 seems to have the same problem, I created a script to generate data for
it:
https://github.com/CristobalM/jena-query-timeout/blob/main/scripts/generate_q1_optional.py
It gets stuck in getPlan() when there are no matches for
Hi Andy,
Q1 seems to have the same problem, I created a script to generate data for
it:
https://github.com/CristobalM/jena-query-timeout/blob/main/scripts/generate_q1_optional.py
It gets stuck in getPlan() when there are no matches for the OPTIONAL
pattern
having ?var5. I tried first with data
Hi all.
Has anyone had any experience with using an Azure Data Factory to map and
get some data into a Jena instance running in a container?
OK yes, thank you for the algebra hint and implicit empty graph pattern
Andy. Blazegraph has thrown me off here since it seems to interpret the
query differently. without preserving the table unit on the left hand side
I presume.
On Tue, Aug 3, 2021 at 6:20 PM Andy Seaborne wrote:
>
>
> On
On 03/08/2021 17:38, Marco Neumann wrote:
I have just noticed that the following query pattern with optionals yields
undesirable SPARQL query results if the variable (?xLabel) isn't bound.
Let the data be: :x :p :y
SELECT ?x
WHERE{
OPTIONAL{ ?x rdfs:label ?xLabel.}
?x :p ?y.
}
(join
I have just noticed that the following query pattern with optionals yields
undesirable SPARQL query results if the variable (?xLabel) isn't bound.
Let the data be: :x :p :y
SELECT ?x
WHERE{
OPTIONAL{ ?x rdfs:label ?xLabel.}
?x :p ?y.
}
while reversing the order in the query pattern yields a
