ProfessionalWiki / ProfessionalWiki/WikibaseRDF

Docs on Blazegraph deletion issue

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Dominant language
PHP
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17
Forks
4
PR merge metrics
No merged PRs in 30d

Description

Currently, Blazegraph does not delete mappings of properties when updating the property, causing a duplication to happen on each update.

Current RDF: view-source:https://rdf.wikibase.wiki/wiki/Special:EntityData/P1.rdf does not work:

wdt:P1 a owl:ObjectProperty ;
	owl:sameAs <http://www.w3.org/2000/01/rdf-schema#subClassOf> .

Old RDF: works as expected:

wd:P1 owl:sameAs <http://www.w3.org/2000/01/rdf-schema#subClassOf> .

Not attempted yet:

wdt:P1 owl:sameAs <http://www.w3.org/2000/01/rdf-schema#subClassOf> .

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The issue names no repository file or test entry point; begin by reproducing the Blazegraph update using the current and old RDF examples for P1. Compare the resulting mappings and determine the intended deletion behavior; done means updating a property no longer creates duplicate mappings.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
databases
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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