How to replace 'from' conditional element in BRMS ?

Solution Unverified - Updated -

Issue

  • It has been found that use of from conditional element is not good for performance. How should it be replaced in the following rule?
when
    $comp : Company(category == "A")
    exists Department(category == "B") from $comp.depts

Environment

  • Red Hat JBoss BRMS (BRMS)
    • 5.x

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