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https://issues.apache.org/jira/browse/CALCITE-3285?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17009487#comment-17009487
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Ruben Q L commented on CALCITE-3285:
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What if we return infinite cost in {{EnumerableMergeJoin#computeSelfCost}} if
the join is not "implementable" with the current merge algorithm (non-equi join
/ outer join)?
> EnumerableMergeJoin should support non-equi join conditions
> -----------------------------------------------------------
>
> Key: CALCITE-3285
> URL: https://issues.apache.org/jira/browse/CALCITE-3285
> Project: Calcite
> Issue Type: Improvement
> Reporter: Haisheng Yuan
> Assignee: Jin Xing
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.22.0
>
> Time Spent: 2h 50m
> Remaining Estimate: 0h
>
> Calcite should be able to generate EnumerableMergeJoin with non-equi join
> conditions, as long as there are equi-join conditions.
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