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 &lt;vigneron.nicolas(a)gmail.com&gt; ezt írta (időpont: 2019. okt. 12., Szo, 19:01): > Hi, > > (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 &lt;fabrizio.carrai(a)gmail.com&gt; > 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* >> _______________________________________________ >> Wikidata mailing list >> Wikidata(a)lists.wikimedia.org >> https://lists.wikimedia.org/mailman/listinfo/wikidata >> > _______________________________________________ > Wikidata mailing list > Wikidata(a)lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/wikidata >

If adding a LIMIT makes the query work, we can just edit the example to have the said limit. It is only an example query, it doesn't have to return all the results. Cheers, Sylvain -- SYLVAIN BOISSEL ADMINISTRATEUR SYSTÈME ET RÉSEAUX _WIKIMÉDIA FRANCE_ _ _ _TÉL: __ +33__ 9 67 45 12 67_ _MOBILE : +33_ 7 84 37 91 03 _WWW.WIKIMEDIA.FR [2]_ _40 rue de Cléry, __75002 Paris_ [3] _Imaginez un monde où chaque personne sur la planète aurait librement accès à la totalité du savoir humain. C'est notre engagement. Aidez Wikimedia France à en faire une réalité [4]._ Le 2019-10-13 08:56, Fabrizio Carrai a écrit : 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. Should we mark this ? contingent situation it makes sense. managed, e.g. by optimizations, can we increase the timeout ? > Thanks Imre Samu &lt;pella.samu(a)gmail.com&gt; ha scritto: service is know to consume and it timeouts often subquery for optimization so the label service doesn't have to do as much work ) 2014 ) case will be - if the sparql engine can detect and automatically optimize this type of queries. &lt;vigneron.nicolas(a)gmail.com&gt; ezt írta (időpont: 2019. okt. 12., Szo, 19:01): and it timeouts often (nothing new it happens since the beginning ; but as Wikidata grows, it's more or more visible). version of the query works (without intermediate variables and without the service): https://w.wiki/9yR 12 oct. 2019 à 18:41, Fabrizio Carrai &lt;fabrizio.carrai(a)gmail.com&gt; a écrit : > I noticed few timeouts on example queries, for example > Whose birthday is today ? [1] ? -- > > _Fabrizio_ _______________________________________________ Wikidata mailing list > Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata _______________________________________________ list > Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata -- _Fabrizio_ _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata Links: ------ [1] https://query.wikidata.org/#%23Di%20chi%20%C3%A8%20il%20compleanno%20oggi%3… [2] http://www.wikimedia.fr/ [3] http://www.openstreetmap.org/node/691082430#map=19/48.86814/2.34683 [4] https://dons.wikimedia.fr