[jboss-jira] [JBoss JIRA] (DROOLS-1519) (var == $v) is faster than ($v == var) and scales much better: can they both be that fast?

[Geoffrey De Smet (JIRA)]

Geoffrey De Smet created DROOLS-1519:
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             Summary: (var == $v) is faster than ($v == var) and scales much better: can they both be that fast?
                 Key: DROOLS-1519
                 URL: https://issues.jboss.org/browse/DROOLS-1519
             Project: Drools
          Issue Type: Enhancement
          Components: core engine
    Affects Versions: 6.5.0.Final
            Reporter: Geoffrey De Smet
            Assignee: Mario Fusco
            Priority: Critical


See:
  http://stackoverflow.com/questions/43282665/why-does-the-order-of-how-we-specify-the-variables-in-a-comparison-matter

The ($v == var) filters much later causing a serious scaling loss.
Investigate if drools can avoid that problem and make the slow one as fast as the fast one?
so we don't have to rewrite all our rules to take advantage of this speedup.



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