Hello, I have a problem with using the /from accumulate/ statement. It is because I'd like to optmize my code a liitle bit. There are two rules that I like to merge. /query "max recomm value for slot 1" accumulate (Recommendation(slot == 1, $recomm_value : recommValue), max : max($recomm_value)) end/ and /query "recomms for slot 1" recomm : Recommendation(slot == 1) end/ So with the first rule I get the maximum of the variable recommValue. The second rule is for searching exactly this Recommendation-fact with this value. Now I tried to merge them in the following way: / query "recomm for slot 1" $recomm : Recommendation() from accumulate(Recommendation( slot == 1, $recomm_value : recommValue), max($recomm_value) ) end/ But the returned value always is a double one. Is it because of the usage of the maximum function? Is it possible to solve this problem with only one query (getting that Recommendation-fact with the highest recommValue)? Regards... -- View this message in context: http://drools.46999.n3.nabble.com/using-from-accumulate-with-wrong-return... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users