Gehel added a parent task: T235759: [TRACKING] WDQS / Blazegraph optimization /
bug fixes.
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https://phabricator.wikimedia.org/T197598
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To: Smalyshev, Gehel
Cc: Lydia_Pintscher, Aklapper,
Smalyshev added a project: Discovery-Wikidata-Query-Service-Sprint.
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https://phabricator.wikimedia.org/T197598
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To: Smalyshev
Cc: Lydia_Pintscher, Aklapper, Smalyshev, Lucas_Werkmeister_WMDE,
Smalyshev added a project: Upstream.Smalyshev added a comment.
Filed https://github.com/blazegraph/database/issues/107 with upstream.TASK DETAILhttps://phabricator.wikimedia.org/T197598EMAIL PREFERENCEShttps://phabricator.wikimedia.org/settings/panel/emailpreferences/To: SmalyshevCc: Aklapper,
Smalyshev added a comment.
The difference seems to come because Blazegraph chooses different query plans with and without limit. Without limit:
P7814 (An Untitled Masterwork)
with limit:
P7815 (An Untitled Masterwork)
The difference is JVMSolutionSetHashJoinOp vs.
Smalyshev added a project: User-Smalyshev.
TASK DETAILhttps://phabricator.wikimedia.org/T197598EMAIL PREFERENCEShttps://phabricator.wikimedia.org/settings/panel/emailpreferences/To: SmalyshevCc: Aklapper, Smalyshev, Lucas_Werkmeister_WMDE, Daniel_Mietchen, Nandana, Lahi, Gq86, Darkminds3113,
CommunityTechBot removed projects: TCB-Team, Mail, New-Editor-Experiences, Language-2018-Apr-June, KartoEditor, JADE, Hashtags, Gamepress, Tamil-Sites, Connected-Open-Heritage-Batch-uploads (RAÄ-KMB_1_2017-02), CheckUser.
TASK DETAILhttps://phabricator.wikimedia.org/T197598EMAIL
