Re: Knowledge graph toolkit

Gregory Williams <[email protected]> Sun, 3 May 2020 18:24:19 -0700

Newsgroups	gmane.org.w3c.semantic-web
Message-ID	<[email protected]>


> On May 3, 2020, at 6:20 PM, Pedro Szekely <[email protected]> wrote:
> 
> This is a great discussion. The fact that the following query times out in Wikidata is a problem that makes folks skeptical that triple stores are for real:
> 
> #Count scholarly articles
> SELECT (COUNT(?article) AS ?article_count)
> WHERE 
> {
>   ?article wdt:P31 wd:Q13442814.
> }

I wonder if that’s an oddity/bug in the wikidata query planner, as the equivalent “COUNT(*)” query returns results immediately.

.greg