[Wikidata-l] Wikidata queries

List overview All Threads
Download

newer

older

[Wikidata-l] Usability flaws

[Wikidata-l] Running "Infobox...

Denny Vrandečić

28 Mar 2013 28 Mar '13

7:03 p.m.

We have a first write up of how we plan to support queries in Wikidata. Comments on our errors and requests for clarifications are more than welcome. <https://meta.wikimedia.org/wiki/Wikidata/Development/Queries> Cheers, Denny P.S.: unfortunately, no easter eggs inside. -- Project director Wikidata Wikimedia Deutschland e.V. | Obentrautstr. 72 | 10963 Berlin Tel. +49-30-219 158 26-0 | http://wikimedia.de Wikimedia Deutschland - Gesellschaft zur Förderung Freien Wissens e.V. Eingetragen im Vereinsregister des Amtsgerichts Berlin-Charlottenburg unter der Nummer 23855 B. Als gemeinnützig anerkannt durch das Finanzamt für Körperschaften I Berlin, Steuernummer 27/681/51985.

Attachments:

attachment.htm (text/html — 969 bytes)

Show replies by date

Petr Onderka

28 Mar 28 Mar

9:08 p.m.

New subject: [Wikidata-l] [Wikitech-l] Wikidata queries

How will be the queries formatted? Do I understand it correctly that a QueryConcept is a JSON object? Have you considered using something more in line with the format of action=query queries? Though I guess what you need is much more complicated and trying to fit it into the action=query model wouldn't end well. Petr Onderka [[en:User:Svick]] 2013/3/28 Denny Vrandečić <denny.vrandecic(a)wikimedia.de>de>:

...

Denny Vrandečić

3 Apr 3 Apr

2 p.m.

New subject: [Wikidata-l] [Wikitech-l] Wikidata queries

2013/3/28 Petr Onderka <gsvick(a)gmail.com>

...

How will be the queries formatted? Do I understand it correctly that a QueryConcept is a JSON object?

Not decided yet. Probably it will be a JSON object, though, and edited through an UI.

...

Have you considered using something more in line with the format of action=query queries?

Yes, but it didn't seem a good fit, especially because the query module works on the page metadata and the queries we discuss here work on the item data.

...

Though I guess what you need is much more complicated and trying to fit it into the action=query model wouldn't end well.

I am not even sure it is much more complicated. But I am very worried it is too different. Cheers, Denny

...

Petr Onderka [[en:User:Svick]] 2013/3/28 Denny Vrandečić <denny.vrandecic(a)wikimedia.de>de>:

unter

der Nummer 23855 B. Als gemeinnützig anerkannt durch das Finanzamt für Körperschaften I Berlin, Steuernummer 27/681/51985. _______________________________________________ Wikitech-l mailing list Wikitech-l(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikitech-l

_______________________________________________ Wikitech-l mailing list Wikitech-l(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikitech-l

-- Project director Wikidata Wikimedia Deutschland e.V. | Obentrautstr. 72 | 10963 Berlin Tel. +49-30-219 158 26-0 | http://wikimedia.de Wikimedia Deutschland - Gesellschaft zur Förderung Freien Wissens e.V. Eingetragen im Vereinsregister des Amtsgerichts Berlin-Charlottenburg unter der Nummer 23855 B. Als gemeinnützig anerkannt durch das Finanzamt für Körperschaften I Berlin, Steuernummer 27/681/51985.

Nikola Smolenski

2:21 p.m.

On 28/03/13 18:03, Denny Vrandečić wrote:

...

We have a first write up of how we plan to support queries in Wikidata.

It's getting hot :)

...

Comments on our errors and requests for clarifications are more than welcome.

What is the difference between 'sort' and 'order' QueryOptions? And, I wanted to ask this for some time, where exactly are the statements being kept? I see no table that contains statements on the Toolserver, and nothing in Wikibase schema documentation.

Denny Vrandečić

2:31 p.m.

2013/4/3 Nikola Smolenski <smolensk(a)eunet.rs>

...

On 28/03/13 18:03, Denny Vrandečić wrote:

We have a first write up of how we plan to support queries in Wikidata.

It's getting hot :)

I wish. It's still snow here. In April.

...

Comments on our errors and requests for clarifications are more than

welcome.

What is the difference between 'sort' and 'order' QueryOptions?

'sort' defines how to bring the result items in a linear order, and 'order' whether to start at the front or the end of the order.

...

And, I wanted to ask this for some time, where exactly are the statements being kept? I see no table that contains statements on the Toolserver, and nothing in Wikibase schema documentation.

In the content of the item, i.e. in the JSON structure that represents the item. Cheers, Denny

...

______________________________**_________________ Wikidata-l mailing list Wikidata-l(a)lists.wikimedia.org https://lists.wikimedia.org/**mailman/listinfo/wikidata-l<https://lists.…

Yuri Astrakhan

7:26 p.m.

Petr, I have began specing out a migration to action=query in http://www.mediawiki.org/wiki/Requests_for_comment/Wikidata_API , but that RFC is not yet complete. Will probably work on it when I am in Amsterdam to get that in sync with the Wikidata team... (and convince Denny that the path is correct :)) On Wed, Apr 3, 2013 at 8:31 AM, Denny Vrandečić < denny.vrandecic(a)wikimedia.de> wrote:

...

2013/4/3 Nikola Smolenski <smolensk(a)eunet.rs>

On 28/03/13 18:03, Denny Vrandečić wrote:

We have a first write up of how we plan to support queries in Wikidata.

It's getting hot :)

I wish. It's still snow here. In April.

Comments on our errors and requests for clarifications are more than

welcome.

What is the difference between 'sort' and 'order' QueryOptions?

'sort' defines how to bring the result items in a linear order, and 'order' whether to start at the front or the end of the order.

And, I wanted to ask this for some time, where exactly are the statements being kept? I see no table that contains statements on the Toolserver, and nothing in Wikibase schema documentation.

In the content of the item, i.e. in the JSON structure that represents the item. Cheers, Denny

______________________________**_________________ Wikidata-l mailing list Wikidata-l(a)lists.wikimedia.org https://lists.wikimedia.org/**mailman/listinfo/wikidata-l<https://lists.…

Jeroen De Dauw

7:50 p.m.

Hey, Comments on our errors and requests for clarifications are more than

...

welcome.

What is the difference between 'sort' and 'order' QueryOptions

'sort' defines how to bring the result items in a linear order, and 'order' whether to start at the front or the end of the order.

Sorry for causing some confusion here - this is my fault as I incorrectly added the "order" option to the document. I just reverted this. There just will be a sort field in query options, though this field is itself complex (an array of sort expressions, where each expression specifies something to sort by and a sort order). For those who are interested, we already have a preliminary implementation of the query language: https://github.com/wikimedia/mediawiki-extensions-Ask/tree/master/includes/… Cheers -- Jeroen De Dauw http://www.bn2vs.com Don't panic. Don't be evil. --

4038

days inactive

4044

days old

wikidata@lists.wikimedia.org

Manage subscription

6 comments

5 participants

tags (0)

participants (5)

Denny Vrandečić
Jeroen De Dauw
Nikola Smolenski
Petr Onderka
Yuri Astrakhan