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https://issues.apache.org/jira/browse/FLINK-23687?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17462952#comment-17462952
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Jing Zhang commented on FLINK-23687:
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[~straw]At the same time, I suggest adding an option to toggle the cache metric
in LookupFunction, so we can evaluate the effect of shuffle.
The metric is useful. However this metric is not coupled with this JIRA,
because not all the look up table source support cache.
Could you add the cache metric in connector of lookup table source?
> Add Sql query hint to enable LookupJoin shuffle by join key of left input
> -------------------------------------------------------------------------
>
> Key: FLINK-23687
> URL: https://issues.apache.org/jira/browse/FLINK-23687
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / Planner
> Reporter: Jing Zhang
> Assignee: Jing Zhang
> Priority: Major
>
> Add Sql query hint to enable LookupJoin shuffle by join key of left input
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