Hannah_Bast added a comment.
In T206560#7430950 <https://phabricator.wikimedia.org/T206560#7430950>, @AndreasKuczera wrote: > I imported the wikidata-DB into neo4j and it works quite well. Can you be more specific? When we tested Wikidata on Neo4j several years ago, it worked in principle, but the performance was unacceptable. In particular, Neo4j does not efficiently support all kinds of JOIN operations that occur in typical SPARQL queries. Could you time a few SPARQL queries on your Neo4j instance and report the results here? That would be very helpful. For starters, you can simply pick some example queries from https://query.wikidata.org TASK DETAIL https://phabricator.wikimedia.org/T206560 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: Hannah_Bast Cc: AndreasKuczera, DD063520, Michael, toan, Kjauslin, Hannah_Bast, RShigapov, Izno, KingsleyIdehen, Daniel_Mietchen, Majavah, karapayneWMDE, MarioGom, Mohammed_Sadat_WMDE, Hjfocs, danshick-wmde, Thadguidry, Tpt, TallTed, Sj, Afandian, Justin0x2004, Jerven, TheKtk, Ivanhercaz, Jneubert, DanBri, Lydia_Pintscher, Tagishsimon, Samantha_Alipio_WMDE, Ostrzyciel, GreenReaper, WMDE-leszek, Salgo60, So9q, Krabina, Jecummings4, TomT0m, Akuckartz, Susannaanas, Addshore, Andrawaag, Gehel, Lucas_Werkmeister_WMDE, Aklapper, Smalyshev, Suran38, Invadibot, MPhamWMF, Jtm-lis, maantietaja, Peteosx1x, NavinRizwi, CBogen, Isaacandy, Demian, Olson.jared.m, Nandana, Namenlos314, Lahi, Gq86, Bryandamon, GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, _jensen, rosalieper, Scott_WUaS, Jonas, Xmlizer, Steko, Samwilson, PhotographerTom, suriyaa, Psychoslave, tosfos, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Darenwelsh, Dinoguy1000, Manybubbles, brion, Mbch331, MarkAHershberger
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