- From: Gregory Williams <greg@evilfunhouse.com>
- Date: Sun, 3 May 2020 18:24:19 -0700
- To: Pedro Szekely <szekely@usc.edu>
- Cc: Adrian Gschwend <ml-ktk@netlabs.org>, semantic-web@w3.org
> On May 3, 2020, at 6:20 PM, Pedro Szekely <szekely@usc.edu> 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
Received on Monday, 4 May 2020 01:24:35 UTC