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https://issues.apache.org/jira/browse/CALCITE-3285?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17007788#comment-17007788
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Julian Hyde commented on CALCITE-3285:
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In order to increase the capabilities of EnumerableMergeJoin you have to make
it much slower. It has to scan all remaining rows on the right-hand side,
rather than just scan a few rows until the key changes. Rather than fixing
CALCITE-3667 I think you need to revert CALCITE-3285.
> 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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