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https://issues.apache.org/jira/browse/TRAFODION-2604?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prashanth Vasudev resolved TRAFODION-2604.
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Resolution: Fixed
> sort operator merge phase memory pool improvement
> --------------------------------------------------
>
> Key: TRAFODION-2604
> URL: https://issues.apache.org/jira/browse/TRAFODION-2604
> Project: Apache Trafodion
> Issue Type: Bug
> Reporter: Prashanth Vasudev
> Assignee: Prashanth Vasudev
> Fix For: 2.2-incubating
>
>
> Currently, executor sort goes through initial sort phase followed by merge
> phase in overflow situation. The memory pool used during sort phase is not
> efficiently reused for merge phase , causing sort merge to slow down in case
> of large merge. Sort merge happens only if sort overflows.
> Fix is to detect overflow situation and reuse the memory pool for merge phase.
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