Hi all,
I'm Adrian Bielefeldt an writing on behalf of Research:Understanding Wikidata Queries https://meta.wikimedia.org/wiki/Research:Understanding_Wikidata_Queries, a research project aimed at gaining an insight into the way the query service https://query.wikidata.org/ of wikidata is being used. We have some questions and are wondering if any of you could provide us with an answer.
1. Is there a unique key for the query log? The log I am refering to is the *wdqs_extract* table**from the hive database wmf.**We would like to be able to permanently link our own computed data with the log entry we computed it from.
2. Is it possible to find out if a query in a given log entry was accepted by the sparql endpoint as valid?
3. Is there any other database system besides hive installed on the server?
And finally a question on conventions for this mailing list: Am I correct in sending one mail for multiple questions or should I send separate mails for each question?
Greetings,
Adrian Bielefeldt **