[Wikidata-bugs] [Maniphest] [Updated] T166139: Query optimizer for labels should be using sub queries

[Lucas_Werkmeister_WMDE]

Lucas_Werkmeister_WMDE added a comment.

Strange… I had the impression that named subqueries are typically faster, but in this case it doesn’t seem to make much of a difference. I ran both versions 100 times (P5706), and while regular subqueries have a few slow outliers, overall they seem to perform equally well:

F8649385: subqueries.png

TASK DETAIL

https://phabricator.wikimedia.org/T166139

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

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