I have no immediate answers, but it would be helpful if you could provide a complete working example of code that exhibits the problem.
-- Michael Mior [email protected] Le ven. 4 mai 2018 à 03:58, Valli Annamalai <[email protected]> a écrit : > I wanted to apply JoinPushThroughJoinRule.LEFT and > JoinPushThroughJoinRule.RIGHT to the plan for optimization. So I added > those 2 rules to Program and ran it as a sequence of programs. > > But I am not getting plan applied with these rules > > I did read [here > < > https://issues.apache.org/jira/browse/CALCITE-457?focusedCommentId=14205221&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14205221 > >] > that adding rules does not mean that the plan will be better. So sanity > checks may fail. In my case, during onMatch() checks (in matchRecurse() > from ValcanoRuleCall.java), it fails because of no parents for the subsets > (getParentRels() returns empty list) . > > Thus there are no successors and the recursion has not been trigerred. So > the rules has not been fired (onMatch() in JoinPushThroughJoinRule.java has > not been called at all). What can be done for that? > > Any other flags need to be enabled or rules to be added?? > > > Thanks in advance >
