Accumulate functions using join variables are not reevaluated ------------------------------------------------------------- Key: DROOLS-661 URL: https://issues.jboss.org/browse/DROOLS-661 Project: Drools Issue Type: Bug Affects Versions: 6.0.1.Final, 6.2.0.CR2 Reporter: Davide Sottara Assignee: Mario Fusco Fix For: 6.2.0.Final {code} Tick( $index : tick ) accumulate ( $data : Data(), $tot : sum( $data.values[ $index ] ) ) {code} The engine ignores the fact that "$index" in the acc function is a join variable, so it does not re-evaluate the function on a left update