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https://issues.apache.org/jira/browse/HIVE-18006?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prasanth Jayachandran reassigned HIVE-18006:
--------------------------------------------
Assignee: Prasanth Jayachandran
> Optimize memory footprint of HLLDenseRegister
> ---------------------------------------------
>
> Key: HIVE-18006
> URL: https://issues.apache.org/jira/browse/HIVE-18006
> Project: Hive
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: Prasanth Jayachandran
> Assignee: Prasanth Jayachandran
>
> {code}
> private double[] invPow2Register;
> {code}
> seems to add up memory when caching column stats (#table * #partition *
> #cols). This register can be pre-computed and stored as constant.
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