Manybubbles added a comment.

In https://phabricator.wikimedia.org/T96100#1215529, @M.schmidt00 wrote:

> Regarding the MAX query:
>
> > PREFIX schema: http://schema.org/
>
> >  SELECT (MAX(?lastUpdate) as ?maxLastUpdate)
>
> >  WHERE { ?s schema:dateModified ?lastUpdate . }
>
>
> There are different approaches that could be taken, see the following (new) 
> blazegraph ticket: http://trac.bigdata.com/ticket/1193.
>
> Please let us know if this issue still has high priority for you, so we could 
> give it a higher prio internally.


It turns out that that query was wrong as well as slow so we've stopped using 
it. We're explicitly storing where we left off as a triple now and just 
updating it after every batch. Its fast and more right!

Its not at all a high priority for us now. We suspect users will try to write 
queries like this from time to time though.


TASK DETAIL
  https://phabricator.wikimedia.org/T96100

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To: Manybubbles
Cc: M.schmidt00, Haasepeter, Beebs.systap, Thompsonbry.systap, Thompsonbry, 
Smalyshev, Aklapper, Manybubbles, jkroll, Wikidata-bugs, Jdouglas, aude, 
GWicke, daniel, JanZerebecki



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