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https://issues.apache.org/jira/browse/IMPALA-13658?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Smith resolved IMPALA-13658.
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Fix Version/s: Impala 4.5.0
Resolution: Fixed
> Cache aggregate results below exchange
> --------------------------------------
>
> Key: IMPALA-13658
> URL: https://issues.apache.org/jira/browse/IMPALA-13658
> Project: IMPALA
> Issue Type: Improvement
> Reporter: Michael Smith
> Assignee: Michael Smith
> Priority: Major
> Fix For: Impala 4.5.0
>
>
> Enable intermediate result caching for AGGREGATE results as long as it
> doesn't contain an exchange.
> In most aggregate cases, there is an initial aggregate, then an exchange and
> a FINALIZE aggregate. We only expect to cache the initial aggregate, as we
> don't support caching results above an exchange.
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