Thanks all for the explanations, now my point is on the examples as seen by
some first Wikidata users: if the examples are there and fail, that's
disappointing.
Have we to comment out examples that could fail ? Should we mark this ?
I don't like the latter, but if it is a contingent situation it makes sense.
Till the work load is not managed, e.g. by optimizations, can we increase
the timeout ?
Thanks
Fabrizio
Il giorno dom 13 ott 2019 alle ore 04:05 Imre Samu <pella.samu(a)gmail.com>
ha scritto:
The
"wikibase:label" service is know to consume and it timeouts often
imho: We can use subquery for optimization so the label service doesn’t
have to do as much work
https://w.wiki/9zD ( LIMIT 1000 + Labels + Descriptions )
LIMIT 10000 - 6924 results in 59861 ms ( birthday = 13 October 2014
)
LIMIT 1000 - 1000 results in 12050 ms
the ideal case will be - if the sparql engine can detect and automatically
optimize this type of queries.
Imre
Nicolas VIGNERON <vigneron.nicolas(a)gmail.com> ezt írta (időpont: 2019.
okt. 12., Szo, 19:01):
Hi,
The "wikibase:label" service is know to consume and it timeouts often
(nothing new it happens since the beginning ; but as Wikidata grows, it's
more or more visible).
This simplified version of the query works (without intermediate
variables and without the service):
https://w.wiki/9yR
Cheers,
~nicolas
Le sam. 12 oct. 2019 à 18:41, Fabrizio Carrai <fabrizio.carrai(a)gmail.com>
a écrit :
I noticed few timeouts on example queries, for
example
Whose birthday is today ?
<https://query.wikidata.org/#%23Di%20chi%20%C3%A8%20il%20compleanno%20oggi%3F%0A%23Whose%20birthday%20is%20today%3F%0ASELECT%20%3Fentity%20%3FentityLabel%20%3FentityDescription%20%28YEAR%28%3Fdate%29%20as%20%3Fyear%29%0AWHERE%20%7B%0A%20%20%20%20BIND%28MONTH%28NOW%28%29%29%20AS%20%3FnowMonth%29%0A%20%20%20%20BIND%28DAY%28NOW%28%29%29%20AS%20%3FnowDay%29%0A%20%20%20%20%3Fentity%20wdt%3AP569%20%3Fdate%20.%0A%20%20%20%20FILTER%20%28MONTH%28%3Fdate%29%20%3D%20%3FnowMonth%20%26%26%20DAY%28%3Fdate%29%20%3D%20%3FnowDay%29%0A%0ASERVICE%20wikibase%3Alabel%20%7B%20bd%3AserviceParam%20wikibase%3Alanguage%20%22%5BAUTO_LANGUAGE%5D%2Cen%22.%20%7D%20%20%20%0A%7D%0ALIMIT%2010>
Is it correct to have this condition ?
--
*Fabrizio*
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