https://bugzilla.wikimedia.org/show_bug.cgi?id=39519

Markus Krötzsch <[email protected]> changed:

           What    |Removed                     |Added
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             Status|UNCONFIRMED                 |ASSIGNED
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--- Comment #3 from Markus Krötzsch <[email protected]> 2012-08-21 
10:26:33 UTC ---
It is remarkable that this works at all for big query results. Independently of
the SMW SQL queries, we found it very problematic to create a page with many
hundreds or thousands of MediaWiki template calls. This usually makes parsing
very slow, even if the query results are found quickly. With 2000 results, you
should get pages that border MW's capacity. One way to improve this is to store
the template-based formatted output with the pages, instead of creating it in
the query. You can use a Text type property for this. Then the query only needs
to display this text rather than calling templates again. To store data from
one page into a template on the same page, the Variable extension is handy.

We will be looking into reducing the overall amount of queries soon, but this
is part of the SMW Storage optimisation project and there are still some other
things to fix there. Do you plan to attend SMWCon in Cologne this October? We
might have some more info by then.

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