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https://issues.apache.org/jira/browse/IGNITE-15203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17391517#comment-17391517
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Evgeny Stanilovsky commented on IGNITE-15203:
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[~korlov] i comment some questions.
> Calcite. Extract Filter and Project related rules to separate HEP phase
> -----------------------------------------------------------------------
>
> Key: IGNITE-15203
> URL: https://issues.apache.org/jira/browse/IGNITE-15203
> Project: Ignite
> Issue Type: Improvement
> Components: sql
> Reporter: Konstantin Orlov
> Assignee: Konstantin Orlov
> Priority: Major
> Labels: calcite2-required, calcite3-required
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> Currently the query like follow requires too mush time to optimise (> 5
> minutes on my laptop):
> {code:java}
> select * from t1 inner join t2 on t1.id = t2.id where t1.val1 > 0 or t1.val2
> > 10
> {code}
> The reason is that every step of push down of the filter creates one more
> valid plan, that in conjunction with OrToUnion rule and all those Join's
> traits propagation significally boosts the search space.
> We could take an advantage of heuristic planner here to push down filters as
> close to the leaf as possible, whereas pruning all alternative plans.
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