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Cost of queries

Lucene usages in Guvnor ( BRMS )

How can I query tasks created by...

David Cracauer

Saturday, 7 February 2009 Sat, 7 Feb '09

9:34 a.m.

Hi All, I'm wondering if anyone can tell me the relative performance impact of queries. Is it just the cost of matching facts against them ( regular caching rules apply etc.)? Thanks, Dave

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Mark Proctor

Sunday, 8 February Sun, 8 Feb

5:12 p.m.

David Cracauer wrote:

Hi All, I'm wondering if anyone can tell me the relative performance impact of queries. Is it just the cost of matching facts against them ( regular caching rules apply etc.)?

The query pattern, which is injected, is the root pattern. So it breaks ALL joins and these will have to be calculated, although you do benefit from the alpha (literal matching) having already been done. Mark

Thanks, Dave _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

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David Cracauer
Mark Proctor