Maniphest T145531

[feature request] allow calculated properties, derived properties
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Description

For easy retrieval, it could be helpful to define calculated properties, i.e. properties whose value are derived from one or several other properties.

Support could be limited to or should include also the SPARQL endpoint. Given increased functionalities of WQS, this may not be needed. On the other hand, it could make it easier to build queries for users.

On Wikidata: https://www.wikidata.org/wiki/Help:Data_type#Calculated_property

Related Objects

Mentioned In: T150116: Wikidata statistics: create a tool or WQS function to evaluate completeness of items of a given type or group of items
Mentioned Here: T167521: Simplify access to properties that currently require traversing numerous items

Event Timeline

Esc3300 created this task.Sep 13 2016, 3:56 PM

Restricted Application added a project: Discovery. · View Herald TranscriptSep 13 2016, 3:56 PM

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Esc3300 added a parent task: T91505: [Epic] Adding new datatypes to Wikidata (tracking).Sep 13 2016, 3:56 PM

Smalyshev moved this task from All WDQS-related tasks to Need investigation on the Wikidata-Query-Service board.Sep 14 2016, 11:47 PM

Liuxinyu970226 added a subscriber: Liuxinyu970226.Sep 23 2016, 6:53 AM

Esc3300 mentioned this in T150116: Wikidata statistics: create a tool or WQS function to evaluate completeness of items of a given type or group of items.Nov 6 2016, 7:09 AM

Yair_rand added a subscriber: Yair_rand.Jan 9 2017, 8:30 PM

This idea seems very similar to my T167521 proposal.

The wikidata property proposal https://www.wikidata.org/wiki/Wikidata:Property_proposal/coordinate_location_GCJ02 would depend on this property datatype.

• iecetcwcpggwqpgciazwvzpfjpwomjxn added a subscriber: • iecetcwcpggwqpgciazwvzpfjpwomjxn.Nov 9 2018, 1:19 PM

Lydia_Pintscher removed a parent task: T91505: [Epic] Adding new datatypes to Wikidata (tracking).Jul 10 2019, 6:15 PM

Iamamz3 added a subscriber: Iamamz3.Dec 23 2019, 8:35 PM

Gehel moved this task from Need investigation to Feature Requests on the Wikidata-Query-Service board.Feb 26 2020, 1:50 PM

Moebeus added a subscriber: Moebeus.Jul 18 2020, 11:07 AM

Gehel triaged this task as Medium priority.Sep 15 2020, 7:52 AM