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https://issues.apache.org/jira/browse/IMPALA-14436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Carlin resolved IMPALA-14436.
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Resolution: Fixed
> Calcite Planner: Implement single row join optimization
> -------------------------------------------------------
>
> Key: IMPALA-14436
> URL: https://issues.apache.org/jira/browse/IMPALA-14436
> Project: IMPALA
> Issue Type: Sub-task
> Reporter: Steve Carlin
> Assignee: Steve Carlin
> Priority: Major
>
> Impala has special code to handle joins that produce one row on the right
> side. This needs to be implemented in Calcite
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