[Wikidata-bugs] [Maniphest] [Commented On] T172113: ConcurrentModificationException on non-grouping query with aggregates in SELECT

2019-08-29 Thread gerritbot 
gerritbot added a comment.


  Change 533108 **merged** by Smalyshev:
  [wikidata/query/blazegraph@master] Fix Concurrent modification on 
non-grouping query with aggregates
  
  https://gerrit.wikimedia.org/r/533108

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  https://phabricator.wikimedia.org/T172113

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[Wikidata-bugs] [Maniphest] [Commented On] T172113: ConcurrentModificationException on non-grouping query with aggregates in SELECT

2019-08-28 Thread gerritbot 
gerritbot added a comment.


  Change 533108 had a related patch set uploaded (by Igor Kim; owner: Igor Kim):
  [wikidata/query/blazegraph@master] Fix Concurrent modification on 
non-grouping query with aggregates
  
  https://gerrit.wikimedia.org/r/533108

TASK DETAIL
  https://phabricator.wikimedia.org/T172113

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[Wikidata-bugs] [Maniphest] [Commented On] T172113: ConcurrentModificationException on non-grouping query with aggregates in SELECT

2017-09-12 Thread WikidataFacts 
WikidataFacts added a comment.
Note that this can also occur on grouping queries:

SELECT ?x (COUNT(*) AS ?total) (SUM(?y) AS ?ys) (?ys/?total AS ?ratio) WHERE {
  ?x wdt:P31 wd:Q1.
  BIND(1 AS ?y)
}
GROUP BY ?x

And an alternative workaround is to inline the variables into the SELECT, i. e. (SUM(?y)/COUNT(*) AS ?ratio). The advantage of this is that you can still use ?ratio in a HAVING clause on the grouping query (a FILTER in the outer query is less efficient).TASK DETAILhttps://phabricator.wikimedia.org/T172113EMAIL PREFERENCEShttps://phabricator.wikimedia.org/settings/panel/emailpreferences/To: WikidataFactsCc: WikidataFacts, Esc3300, Aklapper, Smalyshev, Lucas_Werkmeister_WMDE, PokestarFan, GoranSMilovanovic, QZanden, EBjune, merbst, Avner, debt, Gehel, Jonas, FloNight, Xmlizer, Izno, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331, Krenair___
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[Wikidata-bugs] [Maniphest] [Commented On] T172113: ConcurrentModificationException on non-grouping query with aggregates in SELECT

2017-08-19 Thread Esc3300 
Esc3300 added a comment.
If it's the same as on this, I think it broke on February 22.TASK DETAILhttps://phabricator.wikimedia.org/T172113EMAIL PREFERENCEShttps://phabricator.wikimedia.org/settings/panel/emailpreferences/To: Esc3300Cc: Esc3300, Aklapper, Smalyshev, Lucas_Werkmeister_WMDE, PokestarFan, GoranSMilovanovic, QZanden, EBjune, merbst, Avner, debt, Gehel, Jonas, FloNight, Xmlizer, Izno, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331, Krenair___
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[Wikidata-bugs] [Maniphest] [Commented On] T172113: ConcurrentModificationException on non-grouping query with aggregates in SELECT

2017-08-07 Thread Smalyshev 
Smalyshev added a comment.
Workaround:

SELECT ?total ?mandatory (?mandatory/?total AS ?ratio) WHERE {
{
SELECT (COUNT(*) AS ?total) (COUNT(?status) AS ?mandatory)  WHERE {
  ?property p:P2302 ?statement.
  OPTIONAL { ?statement pq:P2316 ?status. }
}
}
}TASK DETAILhttps://phabricator.wikimedia.org/T172113EMAIL PREFERENCEShttps://phabricator.wikimedia.org/settings/panel/emailpreferences/To: SmalyshevCc: Aklapper, Smalyshev, Lucas_Werkmeister_WMDE, PokestarFan, GoranSMilovanovic, QZanden, EBjune, merbst, Avner, debt, Gehel, Jonas, FloNight, Xmlizer, Izno, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331___
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