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https://issues.apache.org/jira/browse/HIVE-7736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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pengcheng xiong updated HIVE-7736:
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Status: Open (was: Patch Available)
> improve the columns stats update speed for all the partitions of a table
> ------------------------------------------------------------------------
>
> Key: HIVE-7736
> URL: https://issues.apache.org/jira/browse/HIVE-7736
> Project: Hive
> Issue Type: Improvement
> Reporter: pengcheng xiong
> Assignee: pengcheng xiong
> Priority: Minor
> Attachments: HIVE-7736.0.patch, HIVE-7736.1.patch, HIVE-7736.2.patch,
> HIVE-7736.3.patch
>
>
> The current implementation of columns stats update for all the partitions of
> a table takes a long time when there are thousands of partitions.
> For example, on a given cluster, it took 600+ seconds to update all the
> partitions' columns stats for a table with 2 columns but 2000 partitions.
> ANALYZE TABLE src_stat_part partition (partitionId) COMPUTE STATISTICS for
> columns;
> We would like to improve the columns stats update speed for all the
> partitions of a table
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