Yurik added a comment.

There are 60million of isPartOf statements, and I assume that all of them have their objects as the root of a wiki. The space saving would be 9-2 bytes = ~0.5 GB, so not very significant, but it also eliminates a lookup for each value. I wonder how we can measure the performance benefit. I couldn't run the count(distinct ?obj)query due to timeout.


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https://phabricator.wikimedia.org/T175108

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To: Yurik
Cc: Aklapper, Smalyshev, Yurik, Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, EBjune, merbst, Avner, debt, Gehel, Jonas, FloNight, Xmlizer, Izno, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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