[jboss-jira] [JBoss JIRA] (DROOLS-4633) Optimize self-join patterns forall statement

[Mario Fusco (Jira)]

     [ https://issues.jboss.org/browse/DROOLS-4633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco resolved DROOLS-4633.
---------------------------------
    Resolution: Done


Fixed by https://github.com/kiegroup/drools/commit/03c2f67dee21b4a6d38c484b4e7f68a933672d51

> Optimize self-join patterns forall statement
> --------------------------------------------
>
>                 Key: DROOLS-4633
>                 URL: https://issues.jboss.org/browse/DROOLS-4633
>             Project: Drools
>          Issue Type: Enhancement
>            Reporter: Mario Fusco
>            Assignee: Mario Fusco
>            Priority: Major
>
> At the moment a forall statement with a self join like
> {code}
> forall( $t : Type( constraints1 ) Type( this == $t, constraints2 ) )
> {code}
> is implemented with 2 not nodes and a join. It would be much faster to rewrite it as
> {code}
> not( Type( constraints1, !constraints2 ) )
> {code}
> and then evaluate it with one single not node.



--
This message was sent by Atlassian Jira
(v7.13.8#713008)