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https://issues.apache.org/jira/browse/CALCITE-5617?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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hufukang reassigned CALCITE-5617:
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Assignee: (was: Benchao Li)
> count() + left join execution efficiency optimize
> -------------------------------------------------
>
> Key: CALCITE-5617
> URL: https://issues.apache.org/jira/browse/CALCITE-5617
> Project: Calcite
> Issue Type: Task
> Reporter: hufukang
> Priority: Major
>
> SQL uses the count() aggregate function and uses left join to associate other
> tables, the execution efficiency is very slow, and try to optimize the
> aggregation function operator pushdown, hoping to put forward relevant
> optimization suggestions.
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