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https://issues.apache.org/jira/browse/HIVE-17265?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez updated HIVE-17265:
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Attachment: (was: HIVE-17265.patch)
> Cache merged column stats from retrieved partitions
> ---------------------------------------------------
>
> Key: HIVE-17265
> URL: https://issues.apache.org/jira/browse/HIVE-17265
> Project: Hive
> Issue Type: Bug
> Components: Statistics
> Affects Versions: 3.0.0
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Attachments: HIVE-17265.patch
>
>
> Currently when we retrieve stats from the metastore for a column in a
> partitioned table, we will execute the logic to merge the column stats coming
> from each partition multiple times.
> Even though we avoid multiple calls to metastore if the cache for the stats
> in enabled, merging the stats for a given column can take a large amount of
> time if there is a large number of partitions.
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