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https://issues.apache.org/jira/browse/FLINK-14625?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot updated FLINK-14625:
-----------------------------------
Labels: auto-unassigned pull-request-available stale-major (was:
auto-unassigned pull-request-available)
I am the [Flink Jira Bot|https://github.com/apache/flink-jira-bot/] and I help
the community manage its development. I see this issues has been marked as
Major but is unassigned and neither itself nor its Sub-Tasks have been updated
for 30 days. I have gone ahead and added a "stale-major" to the issue". If this
ticket is a Major, please either assign yourself or give an update. Afterwards,
please remove the label or in 7 days the issue will be deprioritized.
> 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
> Priority: Major
> Labels: auto-unassigned, pull-request-available, stale-major
> 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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