[Wikidata-bugs] [Maniphest] [Commented On] T94064: Date of +0000-01-01 is allowed but undefined in wikibase but is not allowed in xsd:dateTime as implemented by blazegraph

daniel added a comment. I agree that we should gather more data before continuing the discussion about the interpretation of dates stored in wikidata. In https://phabricator.wikimedia.org/T94064#1160748, @mkroetzsch wrote: > > @mkroetzsch Do you know of some widely used software that implements

[Wikidata-bugs] [Maniphest] [Commented On] T94064: Date of +0000-01-01 is allowed but undefined in wikibase but is not allowed in xsd:dateTime as implemented by blazegraph

JanZerebecki added a comment. All the software I checked that handles XSD types implement XSD 1.0 BCE years. Together we know of nothing that implements XSD 1.1 BCE years. I'd suggest we produce output for the RDF tools that exist. > "The calendar model used for saving the data is always the pr

[Wikidata-bugs] [Maniphest] [Changed Subscribers] T88451: Provide a mechanism for registering new data types.

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[Wikidata-bugs] [Maniphest] [Changed Subscribers] T85560: inconsistent edit summary between item and property

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[Wikidata-bugs] [Maniphest] [Changed Subscribers] T86517: add a new datatype for multilingual text

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[Wikidata-bugs] [Maniphest] [Commented On] T94064: Date of +0000-01-01 is allowed but undefined in wikibase but is not allowed in xsd:dateTime as implemented by blazegraph

mkroetzsch added a comment. > @mkroetzsch Do you know of some widely used software that implements XSD 1.1 > handling of BCE dates? Many applications that process dates are based on ISO rather than on XSD. Java's SimpleDateFormat class, for example, is based on ISO and thus interprets year nu

[Wikidata-bugs] [Maniphest] [Changed Subscribers] T93866: Rollback diff causes error

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[Wikidata-bugs] [Maniphest] [Changed Subscribers] T93976: WikiPage: "Could not find text for current revision"

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[Wikidata-bugs] [Maniphest] [Commented On] T93885: Implement a limit for entities accessed via arbitrary access features and mark as expensive

daniel added a comment. @Multichill for lists, the plan is to have pre-defined queries in wikidata, and cache the result (and update it periodically). So far, the idea was to just cache the list of entities the query finds, but I'm getting around to believing we should allow users to specify wh

[Wikidata-bugs] [Maniphest] [Changed Project Column] T67698: Under HHVM: Call to a member function getGuid() on a non-object

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[Wikidata-bugs] [Maniphest] [Changed Project Column] T76854: N-Triples encoding for RDF output uses invalid escaping

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[Wikidata-bugs] [Maniphest] [Changed Project Column] T88478: dvwiki link (font) causes page to crash in chrome 40.* and doesn't render in firefox

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[Wikidata-bugs] [Maniphest] [Commented On] T93885: Implement a limit for entities accessed via arbitrary access features and mark as expensive

Multichill added a comment. The most difficult use case will probably be lists. We love our lists on Wikipedia. Lists generally contain redundant information. Would be great to store at least part of this data in Wikidata items and grab it from there. Take for example https://en.wikipedia.org/

[Wikidata-bugs] [Maniphest] [Commented On] T94064: Date of +0000-01-01 is allowed but undefined in wikibase but is not allowed in xsd:dateTime as implemented by blazegraph

JanZerebecki added a comment. @mkroetzsch Do you know of some widely used software that implements XSD 1.1 handling of BCE dates? > Dates without years should not be allowed by the time datatype. > what dates in Wikidata mean I think the best way forward is to leave the lexical 0 in the ye

[Wikidata-bugs] [Maniphest] [Changed Subscribers] T92505: Wikidata architecture review and feedback

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[Wikidata-bugs] [Maniphest] [Changed Subscribers] T92270: Wikidata activities at the Wikimedia Hackathon 2015

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[Wikidata-bugs] [Maniphest] [Commented On] T93451: Data format updates for RDF export

gerritbot added a comment. Change 200119 merged by jenkins-bot: https://phabricator.wikimedia.org/T93451: ontology fixes - namespace the value predicates https://gerrit.wikimedia.org/r/200119 TASK DETAIL https://phabricator.wikimedia.org/T93451 REPLY HANDLER ACTIONS Reply to comment or at

[Wikidata-bugs] [Maniphest] [Changed Subscribers] T92270: Wikidata activities at the Wikimedia Hackathon 2015

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[Wikidata-bugs] [Maniphest] [Changed Project Column] T88950: Migrate all relevant Lua modules from mw.wikibase.getEntity to mw.wikibase.getEntityObject

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[Wikidata-bugs] [Maniphest] [Updated] T88950: Migrate all relevant Lua modules from mw.wikibase.getEntity to mw.wikibase.getEntityObject

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[Wikidata-bugs] [Maniphest] [Commented On] T94064: Date of +0000-01-01 is allowed but undefined in wikibase but is not allowed in xsd:dateTime as implemented by blazegraph

mkroetzsch added a comment. @Smalyshev @Lydia_Pintscher Dates without years should not be allowed by the time datatype. They are impossible to order, almost impossible to query, and they do not have any meaning whatsoever in combination with a preferred calendar model. All the arguments @Denny