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https://issues.apache.org/jira/browse/FLINK-14625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17333854#comment-17333854
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Flink Jira Bot commented on FLINK-14625:
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This issue was marked "stale-assigned" and has not received an update in 7
days. It is now automatically unassigned. If you are still working on it, you
can assign it to yourself again. Please also give an update about the status of
the work.
> Eliminate cross join in multi join to reduce cost
> --------------------------------------------------
>
> Key: FLINK-14625
> URL: https://issues.apache.org/jira/browse/FLINK-14625
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Planner
> Affects Versions: 1.9.1
> Reporter: Leonard Xu
> Assignee: Caizhi Weng
> Priority: Major
> Labels: pull-request-available, stale-assigned
> Time Spent: 10m
> Remaining Estimate: 0h
>
> cross join always has higher cost than other joins, if we can eliminate
> cross join in multi join scene as much as possible，we can obtain better
> performance.
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